﻿{"id":15938,"date":"2025-11-21T10:00:00","date_gmt":"2025-11-21T09:00:00","guid":{"rendered":"https:\/\/www.sigterritoires.fr\/?p=15938"},"modified":"2025-11-11T17:38:45","modified_gmt":"2025-11-11T16:38:45","slug":"estudo-dos-corais-com-sentinel-2-deep-resolution-3-s2dr3-com-qgis-e-scp","status":"publish","type":"post","link":"https:\/\/www.sigterritoires.fr\/index.php\/pt\/estudo-dos-corais-com-sentinel-2-deep-resolution-3-s2dr3-com-qgis-e-scp\/","title":{"rendered":"Estudo dos corais com Sentinel-2 Deep Resolution 3 (S2DR3) com QGis e SCP"},"content":{"rendered":"\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>Na sequ\u00eancia do artigo \u201cComo aumentar a resolu\u00e7\u00e3o das imagens Sentinel 2 de 10 para 1 m\u201d e \u201cUtilizar o S2DR3 no Google Colab para o estudo dos corais na Maur\u00edcia\u201d, vamos ver aqui como explorar as camadas de super-resolu\u00e7\u00e3o no QGis com o plugin SCP.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 counter-hierarchy ez-toc-counter ez-toc-light-blue ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Contenu <\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.sigterritoires.fr\/index.php\/pt\/estudo-dos-corais-com-sentinel-2-deep-resolution-3-s2dr3-com-qgis-e-scp\/#Carregamento_dos_dados_no_QGIS\" >Carregamento dos dados no QGIS<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.sigterritoires.fr\/index.php\/pt\/estudo-dos-corais-com-sentinel-2-deep-resolution-3-s2dr3-com-qgis-e-scp\/#Bandas_Sentinel-2_e_comprimentos_de_onda\" >Bandas Sentinel-2 e comprimentos de onda<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.sigterritoires.fr\/index.php\/pt\/estudo-dos-corais-com-sentinel-2-deep-resolution-3-s2dr3-com-qgis-e-scp\/#Aplicacoes_principais_relacionadas_aos_corais\" >Aplica\u00e7\u00f5es principais relacionadas aos corais<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.sigterritoires.fr\/index.php\/pt\/estudo-dos-corais-com-sentinel-2-deep-resolution-3-s2dr3-com-qgis-e-scp\/#2_Composicoes_RGB_para_visualizar_os_recifes\" >2. Composi\u00e7\u00f5es RGB para visualizar os recifes<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.sigterritoires.fr\/index.php\/pt\/estudo-dos-corais-com-sentinel-2-deep-resolution-3-s2dr3-com-qgis-e-scp\/#3_Bandas_uteis_para_corais\" >3. Bandas \u00fateis para corais<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.sigterritoires.fr\/index.php\/pt\/estudo-dos-corais-com-sentinel-2-deep-resolution-3-s2dr3-com-qgis-e-scp\/#4Indices_espectrais_recomendados\" >4.\u00cdndices espectrais recomendados<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.sigterritoires.fr\/index.php\/pt\/estudo-dos-corais-com-sentinel-2-deep-resolution-3-s2dr3-com-qgis-e-scp\/#Exemplo_de_profundidade_relativa\" >Exemplo de profundidade relativa<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.sigterritoires.fr\/index.php\/pt\/estudo-dos-corais-com-sentinel-2-deep-resolution-3-s2dr3-com-qgis-e-scp\/#Exemplo_Deteccao_de_corais_vivos_B2_B3_B4_%E2%80%93_Sentinel-2\" >Exemplo: Detec\u00e7\u00e3o de corais vivos (B2, B3, B4 \u2013 Sentinel-2)<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.sigterritoires.fr\/index.php\/pt\/estudo-dos-corais-com-sentinel-2-deep-resolution-3-s2dr3-com-qgis-e-scp\/#Objetivo\" >Objetivo<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.sigterritoires.fr\/index.php\/pt\/estudo-dos-corais-com-sentinel-2-deep-resolution-3-s2dr3-com-qgis-e-scp\/#Faixas_necessarias\" >Faixas necess\u00e1rias<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.sigterritoires.fr\/index.php\/pt\/estudo-dos-corais-com-sentinel-2-deep-resolution-3-s2dr3-com-qgis-e-scp\/#Indice_espectral_%E2%80%9CCoral_Index%E2%80%9D_CI\" >\u00cdndice espectral \u201cCoral Index\u201d (CI)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.sigterritoires.fr\/index.php\/pt\/estudo-dos-corais-com-sentinel-2-deep-resolution-3-s2dr3-com-qgis-e-scp\/#Calculo_do_indice_no_QGIS_SCP\" >C\u00e1lculo do \u00edndice no QGIS \/ SCP<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.sigterritoires.fr\/index.php\/pt\/estudo-dos-corais-com-sentinel-2-deep-resolution-3-s2dr3-com-qgis-e-scp\/#Filtragem_3%C3%973_reducao_de_ruido\" >Filtragem 3\u00d73 (redu\u00e7\u00e3o de ru\u00eddo)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.sigterritoires.fr\/index.php\/pt\/estudo-dos-corais-com-sentinel-2-deep-resolution-3-s2dr3-com-qgis-e-scp\/#Visualizacao\" >Visualiza\u00e7\u00e3o<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/www.sigterritoires.fr\/index.php\/pt\/estudo-dos-corais-com-sentinel-2-deep-resolution-3-s2dr3-com-qgis-e-scp\/#Interpretacao_no_terreno_Blue_Bay_%E2%80%93_Ile_aux_Aigrettes\" >Interpreta\u00e7\u00e3o no terreno (Blue Bay \u2013 \u00cele aux Aigrettes)<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/www.sigterritoires.fr\/index.php\/pt\/estudo-dos-corais-com-sentinel-2-deep-resolution-3-s2dr3-com-qgis-e-scp\/#Comparacao_entre_o_Sentinel-2_original_e_o_S2DR3\" >Compara\u00e7\u00e3o entre o Sentinel-2 original e o S2DR3<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/www.sigterritoires.fr\/index.php\/pt\/estudo-dos-corais-com-sentinel-2-deep-resolution-3-s2dr3-com-qgis-e-scp\/#Dicas_para_uma_analise_confiavel\" >Dicas para uma an\u00e1lise confi\u00e1vel<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/www.sigterritoires.fr\/index.php\/pt\/estudo-dos-corais-com-sentinel-2-deep-resolution-3-s2dr3-com-qgis-e-scp\/#Exemplo_de_fluxo_de_trabalho_SCP_resumo\" >Exemplo de fluxo de trabalho SCP (resumo)<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Carregamento_dos_dados_no_QGIS\"><\/span>Carregamento dos dados no QGIS<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Abra o QGIS \u2192 menu Complementos \u2192 Plugin de classifica\u00e7\u00e3o semiautom\u00e1tica (SCP).<\/li>\n\n\n\n<li>No painel SCP \u2192 guia Pr\u00e9-processamento, adicione o arquivo GeoTIFF proveniente do Colab:<br>Caminho: \/MyDrive\/Sentinel2_Corais_S2DR3\/output\/\u2026_MS.tif (cont\u00e9m todas as bandas)<\/li>\n\n\n\n<li>Clique em \u201cConjunto de bandas\u201d \u2192 \u201cCriar conjunto de bandas\u201d e adicione todas as bandas S2DR3 (B0 a B9).<\/li>\n\n\n\n<li>Verifique se a resolu\u00e7\u00e3o \u00e9 de 1 m e se as bandas est\u00e3o alinhadas corretamente.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/scp_sd3-scaled.jpg?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"302\" data-attachment-id=\"15858\" data-permalink=\"https:\/\/www.sigterritoires.fr\/index.php\/etude-des-coraux-avec-sentinel-2-deep-resolution-3-s2dr3-avec-qgis-et-scp\/scp_sd3\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/scp_sd3-scaled.jpg?fit=2560%2C1207&amp;ssl=1\" data-orig-size=\"2560,1207\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;1&quot;}\" data-image-title=\"scp_sd3\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/scp_sd3-scaled.jpg?fit=640%2C302&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/scp_sd3.jpg?resize=640%2C302&#038;ssl=1\" alt=\"\" class=\"wp-image-15858\" srcset=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/scp_sd3-scaled.jpg?resize=1024%2C483&amp;ssl=1 1024w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/scp_sd3-scaled.jpg?resize=300%2C141&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/scp_sd3-scaled.jpg?resize=768%2C362&amp;ssl=1 768w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/scp_sd3-scaled.jpg?resize=1536%2C724&amp;ssl=1 1536w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/scp_sd3-scaled.jpg?resize=2048%2C965&amp;ssl=1 2048w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/scp_sd3-scaled.jpg?w=1280&amp;ssl=1 1280w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/scp_sd3-scaled.jpg?w=1920&amp;ssl=1 1920w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/a><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>Aqui est\u00e1 a tabela completa das bandas Sentinel-2 com seus comprimentos de onda centrais e resolu\u00e7\u00f5es nativas (antes da super-resolu\u00e7\u00e3o S2DR3).<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Bandas_Sentinel-2_e_comprimentos_de_onda\"><\/span>Bandas Sentinel-2 e comprimentos de onda<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Banda<\/th><th>Nome\/Descri\u00e7\u00e3o<\/th><th>Comprimento de onda (nm)<\/th><th>Resolu\u00e7\u00e3o nativa (m)<\/th><th>Utiliza\u00e7\u00e3o t\u00edpica<\/th><\/tr><\/thead><tbody><tr><td><strong>B1<\/strong><\/td><td>Costa\/Aeross\u00f3is<\/td><td>443<\/td><td>60<\/td><td>Estudo da atmosfera, \u00e1guas costeiras pouco profundas<\/td><\/tr><tr><td><strong>B2<\/strong><\/td><td>Azul<\/td><td>490<\/td><td>10<\/td><td>\u00c1guas claras, batimetria, sa\u00fade dos corais <\/td><\/tr><tr><td><strong>B3<\/strong><\/td><td>Verde <\/td><td>560<\/td><td>10<\/td><td>Vegeta\u00e7\u00e3o aqu\u00e1tica, corais, ervas marinhas<\/td><\/tr><tr><td><strong>B4<\/strong><\/td><td>Vermelho <\/td><td>665<\/td><td>10<\/td><td>Detec\u00e7\u00e3o de clorofila, corais estressados <\/td><\/tr><tr><td><strong>B5<\/strong><\/td><td>Red Edge 1<\/td><td>705<\/td><td>20<\/td><td>Transi\u00e7\u00e3o vermelho\/NIR, vegeta\u00e7\u00e3o<\/td><\/tr><tr><td><strong>B6<\/strong><\/td><td>Red Edge 2<\/td><td>740<\/td><td>20<\/td><td>Sa\u00fade da vegeta\u00e7\u00e3o, turbidez <\/td><\/tr><tr><td><strong>B7<\/strong><\/td><td>Red Edge 3<\/td><td>783<\/td><td>20<\/td><td>An\u00e1lise detalhada da vegeta\u00e7\u00e3o costeira <\/td><\/tr><tr><td><strong>B8<\/strong><\/td><td>NIR (infravermelho pr\u00f3ximo)<\/td><td>842<\/td><td>10<\/td><td>Detec\u00e7\u00e3o da vegeta\u00e7\u00e3o, profundidade (\u00e1gua clara)<\/td><\/tr><tr><td><strong>B8A<\/strong><\/td><td>Red Edge 4<\/td><td>865<\/td><td>20<\/td><td>Melhoria dos contrastes entre solo e vegeta\u00e7\u00e3o<\/td><\/tr><tr><td><strong>B9<\/strong><\/td><td>Faixa de vapor de \u00e1gua<\/td><td>945<\/td><td>60<\/td><td>Corre\u00e7\u00e3o atmosf\u00e9rica (vapor de \u00e1gua) <\/td><\/tr><tr><td><strong>B10<\/strong><\/td><td>Cirrus<\/td><td>1375<\/td><td>60<\/td><td>Detec\u00e7\u00e3o de nuvens cirrus<\/td><\/tr><tr><td><strong>B11<\/strong><\/td><td>SWIR 1 (infravermelho curto)<\/td><td>1610<\/td><td>20<\/td><td>Sedimentos, umidade, turbidez<\/td><\/tr><tr><td><strong>B12<\/strong><\/td><td>SWIR 2 (infravermelho curto)<\/td><td>2190<\/td><td>20<\/td><td>Discrimina\u00e7\u00e3o de solos, forte turbidez<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Aplicacoes_principais_relacionadas_aos_corais\"><\/span>Aplica\u00e7\u00f5es principais relacionadas aos corais<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Tema Principais faixas Explica\u00e7\u00e3o Detec\u00e7\u00e3o de corais vivos B2, B3, B4 Os corais refletem mais no verde do que no azul, mas absorvem fortemente no vermelho. Ervas marinhas e algas B3, B5, B6 O Red Edge revela os pigmentos clorof\u00edlicos das ervas marinhas. Batimetria (profundidade relativa) B2\/B3, B3\/B4 Quanto maior a profundidade, mais rapidamente diminui a reflet\u00e2ncia azul. Turbidez\/sedimentos B8, B11, B12 O infravermelho \u00e9 fortemente absorvido pela \u00e1gua, mas bem refletido pelas part\u00edculas em suspens\u00e3o.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Tema <\/th><th>Principais faixas <\/th><th>Explica\u00e7\u00e3o <\/th><\/tr><\/thead><tbody><tr><td><strong>Detec\u00e7\u00e3o de corais vivos ux vivants<\/strong><\/td><td>B2, B3, B4<\/td><td>Os corais refletem mais no verde do que no azul, mas absorvem fortemente no vermelho.<\/td><\/tr><tr><td><strong>Ervas marinhas e algas<\/strong><\/td><td>B3, B5, B6<\/td><td>O Red Edge revela os pigmentos clorof\u00edlicos das ervas marinhas.<\/td><\/tr><tr><td><strong>Batimetria (profundidade relativa)<\/strong><\/td><td>B2\/B3, B3\/B4<\/td><td>Quanto maior a profundidade, mais rapidamente diminui a reflet\u00e2ncia azul.<\/td><\/tr><tr><td><strong>Turbidez\/sedimentos <\/strong><\/td><td>B8, B11, B12<\/td><td>O infravermelho \u00e9 fortemente absorvido pela \u00e1gua, mas bem refletido pelas part\u00edculas em suspens\u00e3o.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_Composicoes_RGB_para_visualizar_os_recifes\"><\/span>2. Composi\u00e7\u00f5es RGB para visualizar os recifes<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>TemaFaixas (R-G-B)Efeito visual principalTrue color (natural)B4-B3-B2Vis\u00e3o realista da \u00e1gua e do fundo.Litoral \/ corais pouco profundosB3-B2-B1Melhor sensibilidade \u00e0s varia\u00e7\u00f5es de profundidade e aos herb\u00e1rios. Detec\u00e7\u00e3o de turbidez\/sedimentos B11-B8-B4 Destaca \u00e1reas turvas ou arenosas. An\u00e1lise batim\u00e9trica B2-B3-B4 (ou B2-B3-B8) Ideal para visualizar a varia\u00e7\u00e3o de profundidades em fundo claro.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Tema<\/th><th>Faixas(R-G-B)<\/th><th>Efeito visual principal<\/th><\/tr><\/thead><tbody><tr><td><strong>True color (natural)<\/strong><\/td><td>B4-B3-B2<\/td><td>Vis\u00e3o realista da \u00e1gua e do fundo.<\/td><\/tr><tr><td><strong>Litoral \/ corais pouco profundos<\/strong><\/td><td>B3-B2-B1<\/td><td>Melhor sensibilidade \u00e0s varia\u00e7\u00f5es de profundidade e aos herb\u00e1rios.<\/td><\/tr><tr><td><strong>Detec\u00e7\u00e3o de turbidez\/sedimentos<\/strong><\/td><td>B11-B8-B4<\/td><td>Destaca \u00e1reas turvas ou arenosas. <\/td><\/tr><tr><td><strong>An\u00e1lise batim\u00e9trica<\/strong><\/td><td>B2-B3-B4 (ou B2-B3-B8)<\/td><td>Ideal para visualizar a varia\u00e7\u00e3o de profundidades em fundo claro.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>Dica: ajuste a transpar\u00eancia da \u00e1gua com a curva de contraste para distinguir melhor os corais.<\/p>\n\n\n\n<p><\/p>\n<\/blockquote>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3_Bandas_uteis_para_corais\"><\/span>3. Bandas \u00fateis para corais<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>BandaNomeResolu\u00e7\u00e3o nativaSensibilidade principalB1Aerossol costeiro60 m \u2192 1 m S2DR3Col\u00f4nias de corais rasas, turbidez. B2Azul10 m \u2192 1 m\u00c1guas claras, profundidade, substrato.B3Verde10 m \u2192 1 mReflet\u00e2ncia dos corais e ervas marinhas.B4Vermelho10 m \u2192 1 mContraste com as zonas terrestres. B8NIR10 m \u2192 1 mSa\u00fade da vegeta\u00e7\u00e3o litoral, turbidez.B11SWIR120 m \u2192 1 mUmidade, sedimentos, profundidade.B12SWIR220 m \u2192 1 mDetec\u00e7\u00e3o de zonas \u00famidas e minerais.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Banda<\/th><th>Nome<\/th><th>Resolu\u00e7\u00e3o nativa<\/th><th>Sensibilidade principal<\/th><\/tr><\/thead><tbody><tr><td>B1<\/td><td>Coastal aerosol<\/td><td>60 m \u2192 1 m S2DR3<\/td><td>Col\u00f4nias de corais rasas, turbidez.<\/td><\/tr><tr><td>B2<\/td><td>Blue<\/td><td>10 m \u2192 1 m<\/td><td>\u00c1guas claras, profundidade, substrato.<\/td><\/tr><tr><td>B3<\/td><td>Green<\/td><td>10 m \u2192 1 m<\/td><td>Reflet\u00e2ncia dos corais e ervas marinhas.<\/td><\/tr><tr><td>B4<\/td><td>Red<\/td><td>10 m \u2192 1 m<\/td><td>Contraste com as zonas terrestres. <\/td><\/tr><tr><td>B8<\/td><td>NIR<\/td><td>10 m \u2192 1 m<\/td><td>Sa\u00fade da vegeta\u00e7\u00e3o litoral, turbidez.<\/td><\/tr><tr><td>B11<\/td><td>SWIR1<\/td><td>20 m \u2192 1 m<\/td><td>Umidade, sedimentos, profundidade.<\/td><\/tr><tr><td>B12<\/td><td>SWIR2<\/td><td>20 m \u2192 1 m<\/td><td>Detec\u00e7\u00e3o de zonas \u00famidas e minerais.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"4Indices_espectrais_recomendados\"><\/span>4.\u00cdndices espectrais recomendados<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u00cdndice<\/th><th>F\u00f3rmula(SCP \u2192 Band calc)<\/th><th>Interpreta\u00e7\u00e3o<\/th><\/tr><\/thead><tbody><tr><td>NDWI (\u00cdndice de \u00e1gua normalizado)<\/td><td><code>(B3 - B8) \/ (B3 + B8)<\/code><\/td><td>Delimita as zonas de \u00e1gua\/terra emergida.<\/td><\/tr><tr><td><strong>BSI<\/strong> (Bare Soil Index)<\/td><td><code>((B11 + B4) - (B8 + B2)) \/ ((B11 + B4) + (B8 + B2))<\/code><\/td><td>Identifica areia\/substratos expostos.<\/td><\/tr><tr><td><strong>NDTI<\/strong> (Turbidity Index)<\/td><td><code>(B11 - B8) \/ (B11 + B8)<\/code><\/td><td>Detecta \u00e1gua turva ou carregada de sedimentos.<\/td><\/tr><tr><td><strong>Coral Index (experimental)<\/strong><\/td><td><code>(B3 - B2) \/ (B3 + B2)<\/code><\/td><td>Destaca \u00e1reas de corais rasos (quanto maior o valor, maior a predomin\u00e2ncia da reflet\u00e2ncia verde).<\/td><\/tr><tr><td><strong>Depth Ratio<\/strong> (profundidade relativa)<\/td><td><code>B2 \/ B3<\/code><\/td><td>Estima as varia\u00e7\u00f5es batim\u00e9tricas em fundos claros.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>Para todos esses \u00edndices:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Aplique um filtro 3\u00d73 para reduzir o ru\u00eddo.<\/li>\n\n\n\n<li>Use a paleta \u201cEspectral\u201d para visualizar melhor os gradientes.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Exemplo_de_profundidade_relativa\"><\/span>Exemplo de profundidade relativa<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>A rela\u00e7\u00e3o entre as bandas B2 e B3 permite visualizar as varia\u00e7\u00f5es batim\u00e9tricas. Vamos ver em detalhes como fazer isso.<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>No SCP, v\u00e1 para a guia \u201cC\u00e1lculo de banda\u201d,<\/li>\n\n\n\n<li>insira a f\u00f3rmula \u201cbandset1b2\u201d\/ \u201cbandset1b3\u201d<\/li>\n\n\n\n<li>Clique em Iniciar<\/li>\n<\/ol>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/scp_calcband-scaled.jpg?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"302\" data-attachment-id=\"15859\" data-permalink=\"https:\/\/www.sigterritoires.fr\/index.php\/etude-des-coraux-avec-sentinel-2-deep-resolution-3-s2dr3-avec-qgis-et-scp\/scp_calcband\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/scp_calcband-scaled.jpg?fit=2560%2C1207&amp;ssl=1\" data-orig-size=\"2560,1207\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;1&quot;}\" data-image-title=\"scp_calcband\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/scp_calcband-scaled.jpg?fit=640%2C302&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/scp_calcband.jpg?resize=640%2C302&#038;ssl=1\" alt=\"\" class=\"wp-image-15859\" srcset=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/scp_calcband-scaled.jpg?resize=1024%2C483&amp;ssl=1 1024w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/scp_calcband-scaled.jpg?resize=300%2C141&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/scp_calcband-scaled.jpg?resize=768%2C362&amp;ssl=1 768w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/scp_calcband-scaled.jpg?resize=1536%2C724&amp;ssl=1 1536w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/scp_calcband-scaled.jpg?resize=2048%2C965&amp;ssl=1 2048w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/scp_calcband-scaled.jpg?w=1280&amp;ssl=1 1280w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/scp_calcband-scaled.jpg?w=1920&amp;ssl=1 1920w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/a><\/figure>\n\n\n\n<p>Obt\u00e9m-se ent\u00e3o o raster do \u00edndice.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/scp_b2B3.jpg?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"409\" data-attachment-id=\"15860\" data-permalink=\"https:\/\/www.sigterritoires.fr\/index.php\/etude-des-coraux-avec-sentinel-2-deep-resolution-3-s2dr3-avec-qgis-et-scp\/scp_b2b3\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/scp_b2B3.jpg?fit=2423%2C1548&amp;ssl=1\" data-orig-size=\"2423,1548\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;1&quot;}\" data-image-title=\"scp_b2B3\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/scp_b2B3.jpg?fit=640%2C409&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/scp_b2B3.jpg?resize=640%2C409&#038;ssl=1\" alt=\"\" class=\"wp-image-15860\" srcset=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/scp_b2B3.jpg?resize=1024%2C654&amp;ssl=1 1024w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/scp_b2B3.jpg?resize=300%2C192&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/scp_b2B3.jpg?resize=768%2C491&amp;ssl=1 768w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/scp_b2B3.jpg?resize=1536%2C981&amp;ssl=1 1536w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/scp_b2B3.jpg?resize=2048%2C1308&amp;ssl=1 2048w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/scp_b2B3.jpg?w=1280&amp;ssl=1 1280w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/scp_b2B3.jpg?w=1920&amp;ssl=1 1920w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/a><\/figure>\n\n\n\n<p>Podemos comparar nosso resultado com o obtido com o ICESat_2 Space_Based Laser Bathymetry dispon\u00edvel no Arcgis Online.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/arconline-scaled.jpg?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"314\" data-attachment-id=\"15861\" data-permalink=\"https:\/\/www.sigterritoires.fr\/index.php\/etude-des-coraux-avec-sentinel-2-deep-resolution-3-s2dr3-avec-qgis-et-scp\/arconline\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/arconline-scaled.jpg?fit=2560%2C1254&amp;ssl=1\" data-orig-size=\"2560,1254\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;1&quot;}\" data-image-title=\"arconline\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/arconline-scaled.jpg?fit=640%2C314&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/arconline.jpg?resize=640%2C314&#038;ssl=1\" alt=\"\" class=\"wp-image-15861\" srcset=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/arconline-scaled.jpg?resize=1024%2C502&amp;ssl=1 1024w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/arconline-scaled.jpg?resize=300%2C147&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/arconline-scaled.jpg?resize=768%2C376&amp;ssl=1 768w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/arconline-scaled.jpg?resize=1536%2C753&amp;ssl=1 1536w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/arconline-scaled.jpg?resize=2048%2C1003&amp;ssl=1 2048w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/arconline-scaled.jpg?w=1280&amp;ssl=1 1280w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/arconline-scaled.jpg?w=1920&amp;ssl=1 1920w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/a><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Exemplo_Deteccao_de_corais_vivos_B2_B3_B4_%E2%80%93_Sentinel-2\"><\/span>Exemplo: Detec\u00e7\u00e3o de corais vivos (B2, B3, B4 \u2013 Sentinel-2)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Objetivo\"><\/span>Objetivo<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Identificar as \u00e1reas onde os corais vivos se distinguem da areia e das ervas marinhas, aproveitando sua reflet\u00e2ncia mais forte no verde e fraca no vermelho.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Faixas_necessarias\"><\/span>Faixas necess\u00e1rias<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Faixa<\/th><th>Nome<\/th><th>Comprimento de onda (nm)<\/th><th>Utilidade<\/th><\/tr><\/thead><tbody><tr><td>B2<\/td><td>Azul<\/td><td>490<\/td><td>Sens\u00edvel \u00e0 \u00e1gua clara e a zonas de pouca profundidade<\/td><\/tr><tr><td>B3<\/td><td>Verde<\/td><td>560<\/td><td>Reflet\u00e2ncia m\u00e1xima dos corais vivos<\/td><\/tr><tr><td>B4<\/td><td>Vermelho<\/td><td>665<\/td><td>Absorvida pelos pigmentos zooxantelas (corais vivos)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Indice_espectral_%E2%80%9CCoral_Index%E2%80%9D_CI\"><\/span>\u00cdndice espectral \u201cCoral Index\u201d (CI)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>F\u00f3rmula simples inspirada no princ\u00edpio NDVI, adaptada aos corais:<\/p>\n\n\n\\(<br \/>\n\\text{\u00cdndice de Coral} = \\frac{B3 &#8211; B4}{B3 + B4}<br \/>\n\\)\n\n\n\n<p>Este \u00edndice \u00e9 positivo para corais vivos (reflect\u00e2ncia mais forte no verde do que no vermelho) e tende para 0 ou negativo para areia ou zonas de \u00e1guas profundas.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Calculo_do_indice_no_QGIS_SCP\"><\/span>C\u00e1lculo do \u00edndice no QGIS \/ SCP<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Abra o SCP \u2192 guia \u201cConjuntos de bandas\u201d\n<ul class=\"wp-block-list\">\n<li>Adicione as bandas B2, B3, B4 (pr\u00e9-tratadas ou provenientes do S2DR3).<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>Clique em \u201cC\u00e1lculo de banda\u201d (calculadora).<\/li>\n\n\n\n<li>Na \u00e1rea da f\u00f3rmula, escreva: (\u201cbandset1b3\u201d- \u201cbandset1b4\u201d)\/ (\u201cbandset1b3\u201d+ \u201cbandset1b4\u201d), que corresponde a (B3 &#8211; B4) \/ (B3 + B4)<\/li>\n\n\n\n<li>Escolha um nome de sa\u00edda: Coral_Index.tif<\/li>\n\n\n\n<li>Clique em Iniciar<\/li>\n<\/ol>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/corralindex-scaled.jpg?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"302\" data-attachment-id=\"15876\" data-permalink=\"https:\/\/www.sigterritoires.fr\/index.php\/etude-des-coraux-avec-sentinel-2-deep-resolution-3-s2dr3-avec-qgis-et-scp\/corralindex\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/corralindex-scaled.jpg?fit=2560%2C1207&amp;ssl=1\" data-orig-size=\"2560,1207\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;1&quot;}\" data-image-title=\"corralindex\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/corralindex-scaled.jpg?fit=640%2C302&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/corralindex.jpg?resize=640%2C302&#038;ssl=1\" alt=\"\" class=\"wp-image-15876\" srcset=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/corralindex-scaled.jpg?resize=1024%2C483&amp;ssl=1 1024w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/corralindex-scaled.jpg?resize=300%2C141&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/corralindex-scaled.jpg?resize=768%2C362&amp;ssl=1 768w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/corralindex-scaled.jpg?resize=1536%2C724&amp;ssl=1 1536w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/corralindex-scaled.jpg?resize=2048%2C965&amp;ssl=1 2048w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/corralindex-scaled.jpg?w=1280&amp;ssl=1 1280w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/corralindex-scaled.jpg?w=1920&amp;ssl=1 1920w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/a><\/figure>\n\n\n\n<p>No nosso caso, obtemos:<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/corralindexbrut-scaled.jpg?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"411\" data-attachment-id=\"15877\" data-permalink=\"https:\/\/www.sigterritoires.fr\/index.php\/etude-des-coraux-avec-sentinel-2-deep-resolution-3-s2dr3-avec-qgis-et-scp\/corralindexbrut\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/corralindexbrut-scaled.jpg?fit=2560%2C1643&amp;ssl=1\" data-orig-size=\"2560,1643\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;1&quot;}\" data-image-title=\"corralindexbrut\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/corralindexbrut-scaled.jpg?fit=640%2C411&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/corralindexbrut.jpg?resize=640%2C411&#038;ssl=1\" alt=\"\" class=\"wp-image-15877\" srcset=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/corralindexbrut-scaled.jpg?resize=1024%2C657&amp;ssl=1 1024w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/corralindexbrut-scaled.jpg?resize=300%2C193&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/corralindexbrut-scaled.jpg?resize=768%2C493&amp;ssl=1 768w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/corralindexbrut-scaled.jpg?resize=1536%2C986&amp;ssl=1 1536w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/corralindexbrut-scaled.jpg?resize=2048%2C1314&amp;ssl=1 2048w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/corralindexbrut-scaled.jpg?w=1280&amp;ssl=1 1280w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/corralindexbrut-scaled.jpg?w=1920&amp;ssl=1 1920w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/a><\/figure>\n\n\n\n<p>A presen\u00e7a de terra firme resulta em valores negativos. Podemos aplicar uma m\u00e1scara para ocultar as \u00e1reas que n\u00e3o nos interessam ou simplesmente for\u00e7ar a simbologia, mantendo apenas os valores positivos.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/corralindexpos-scaled.jpg?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"308\" data-attachment-id=\"15878\" data-permalink=\"https:\/\/www.sigterritoires.fr\/index.php\/etude-des-coraux-avec-sentinel-2-deep-resolution-3-s2dr3-avec-qgis-et-scp\/corralindexpos\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/corralindexpos-scaled.jpg?fit=2560%2C1234&amp;ssl=1\" data-orig-size=\"2560,1234\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;1&quot;}\" data-image-title=\"corralindexpos\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/corralindexpos-scaled.jpg?fit=640%2C308&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/corralindexpos.jpg?resize=640%2C308&#038;ssl=1\" alt=\"\" class=\"wp-image-15878\" srcset=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/corralindexpos-scaled.jpg?resize=1024%2C493&amp;ssl=1 1024w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/corralindexpos-scaled.jpg?resize=300%2C145&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/corralindexpos-scaled.jpg?resize=768%2C370&amp;ssl=1 768w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/corralindexpos-scaled.jpg?resize=1536%2C740&amp;ssl=1 1536w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/corralindexpos-scaled.jpg?resize=2048%2C987&amp;ssl=1 2048w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/corralindexpos-scaled.jpg?w=1280&amp;ssl=1 1280w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/corralindexpos-scaled.jpg?w=1920&amp;ssl=1 1920w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/a><\/figure>\n\n\n\n<p>O que resulta em:<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/corralindexpross-scaled.jpg?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"409\" data-attachment-id=\"15879\" data-permalink=\"https:\/\/www.sigterritoires.fr\/index.php\/etude-des-coraux-avec-sentinel-2-deep-resolution-3-s2dr3-avec-qgis-et-scp\/corralindexpross\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/corralindexpross-scaled.jpg?fit=2560%2C1636&amp;ssl=1\" data-orig-size=\"2560,1636\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;1&quot;}\" data-image-title=\"corralindexpross\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/corralindexpross-scaled.jpg?fit=640%2C409&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/corralindexpross.jpg?resize=640%2C409&#038;ssl=1\" alt=\"\" class=\"wp-image-15879\" srcset=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/corralindexpross-scaled.jpg?resize=1024%2C654&amp;ssl=1 1024w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/corralindexpross-scaled.jpg?resize=300%2C192&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/corralindexpross-scaled.jpg?resize=768%2C491&amp;ssl=1 768w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/corralindexpross-scaled.jpg?resize=1536%2C982&amp;ssl=1 1536w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/corralindexpross-scaled.jpg?resize=2048%2C1309&amp;ssl=1 2048w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/corralindexpross-scaled.jpg?w=1280&amp;ssl=1 1280w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/corralindexpross-scaled.jpg?w=1920&amp;ssl=1 1920w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/a><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Filtragem_3%C3%973_reducao_de_ruido\"><\/span>Filtragem 3\u00d73 (redu\u00e7\u00e3o de ru\u00eddo)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>No QGIS:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Abra a Caixa de ferramentas de processamento<\/li>\n\n\n\n<li>Procure Grass-&gt;Raster-&gt;r.neighbors<br>\u2192 Entrada: CoralIndex.tif<br>\u2192 Tamanho do n\u00facleo: 3<br>\u2192 Sa\u00edda: CoralIndex_filtered.tif<\/li>\n<\/ul>\n\n\n\n<p>A diferen\u00e7a entre o \u00edndice bruto e o \u00edndice filtrado fica bem vis\u00edvel quando se amplia uma \u00e1rea de corais:oome sur une zone de coraux:<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/corralindexzoomfiltered-1-scaled.jpg?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"235\" data-attachment-id=\"15882\" data-permalink=\"https:\/\/www.sigterritoires.fr\/index.php\/etude-des-coraux-avec-sentinel-2-deep-resolution-3-s2dr3-avec-qgis-et-scp\/corralindexzoomfiltered-2\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/corralindexzoomfiltered-1-scaled.jpg?fit=2560%2C940&amp;ssl=1\" data-orig-size=\"2560,940\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;1&quot;}\" data-image-title=\"corralindexzoomfiltered\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/corralindexzoomfiltered-1-scaled.jpg?fit=640%2C235&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/corralindexzoomfiltered-1.jpg?resize=640%2C235&#038;ssl=1\" alt=\"\" class=\"wp-image-15882\" srcset=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/corralindexzoomfiltered-1-scaled.jpg?resize=1024%2C376&amp;ssl=1 1024w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/corralindexzoomfiltered-1-scaled.jpg?resize=300%2C110&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/corralindexzoomfiltered-1-scaled.jpg?resize=768%2C282&amp;ssl=1 768w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/corralindexzoomfiltered-1-scaled.jpg?resize=1536%2C564&amp;ssl=1 1536w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/corralindexzoomfiltered-1-scaled.jpg?resize=2048%2C752&amp;ssl=1 2048w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/corralindexzoomfiltered-1-scaled.jpg?w=1280&amp;ssl=1 1280w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/corralindexzoomfiltered-1-scaled.jpg?w=1920&amp;ssl=1 1920w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/a><figcaption class=\"wp-element-caption\">Coral_Index.tif &#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;. Coral_Index_Filtered.tif<\/figcaption><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Visualizacao\"><\/span>Visualiza\u00e7\u00e3o<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Estilo \u2192 Paleta de pseudocores (viridis ou RdYlGn)<\/li>\n\n\n\n<li>Regra:\n<ul class=\"wp-block-list\">\n<li>Valores elevados (verdes) \u2192 prov\u00e1vel presen\u00e7a de corais vivos<\/li>\n\n\n\n<li>Valores baixos (azuis\/vermelhos) \u2192 areia, ervas marinhas ou \u00e1guas profundas<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Interpretacao_no_terreno_Blue_Bay_%E2%80%93_Ile_aux_Aigrettes\"><\/span>Interpreta\u00e7\u00e3o no terreno (Blue Bay \u2013 \u00cele aux Aigrettes)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u00c1reas verde-amarelo claro: recifes saud\u00e1veis, corais vivos<\/li>\n\n\n\n<li>\u00c1reas verde-escuro-azul: substrato nu ou corais mortos<\/li>\n\n\n\n<li>\u00c1reas azuis: ervas marinhas ou \u00e1guas profundas<\/li>\n\n\n\n<li>\u00c1reas muito escuras: turbidez ou sombras da \u00e1gua<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Comparacao_entre_o_Sentinel-2_original_e_o_S2DR3\"><\/span>Compara\u00e7\u00e3o entre o Sentinel-2 original e o S2DR3<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Baixe a cena original do Sentinel-2 (L2A, 10 m) para a mesma data atrav\u00e9s do Copernicus Hub ou SCP \u2192 Download products.<\/li>\n\n\n\n<li>No QGIS:\n<ul class=\"wp-block-list\">\n<li>Crie uma composi\u00e7\u00e3o RGB 10 m e outra com as bandas 1 m S2DR3.<\/li>\n\n\n\n<li>Use \u201cSwipe map view\u201d ou \u201cTransparency slider\u201d para compar\u00e1-las visualmente.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>Op\u00e7\u00e3o quantitativa:\n<ul class=\"wp-block-list\">\n<li>Calcule NDWI, NDVI ou Coral Index para as duas imagens.<\/li>\n\n\n\n<li>Use Raster \u2192 Raster calculator para gerar uma diferen\u00e7a (\u0394): NDWI_S2DR3 &#8211; NDWI_Sentinel2<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>As \u00e1reas de grande diferen\u00e7a indicam os detalhes adicionados ou as varia\u00e7\u00f5es detectadas.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Dicas_para_uma_analise_confiavel\"><\/span>Dicas para uma an\u00e1lise confi\u00e1vel<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Verifique os metadados: data, cobertura de nuvens, \u00e2ngulo solar.<\/li>\n\n\n\n<li>Evite dias com mar agitado ou turbidez (os reflexos alteram as propor\u00e7\u00f5es).<\/li>\n\n\n\n<li>Os detalhes S2DR3 s\u00e3o inferidos por IA: use-os para localiza\u00e7\u00e3o, n\u00e3o para medi\u00e7\u00f5es m\u00e9tricas precisas.<\/li>\n\n\n\n<li>Para \u00e1reas de interesse cient\u00edfico, combine S2DR3 com observa\u00e7\u00f5es de drones ou fotos a\u00e9reas para valida\u00e7\u00e3o.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Exemplo_de_fluxo_de_trabalho_SCP_resumo\"><\/span>Exemplo de fluxo de trabalho SCP (resumo)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Carregar as faixas S2DR3 (1 m) \u2192 criar Band Set.<\/li>\n\n\n\n<li>Calcular NDWI, NDTI, \u00cdndice de Coral.<\/li>\n\n\n\n<li>Classificar com \u201cUnsupervised \u2192 K-means\u201d ou \u201cSupervised \u2192 ROI + Classification\u201d.<\/li>\n\n\n\n<li>Exportar as classes (coral, ervas marinhas, areia, \u00e1guas profundas).<\/li>\n\n\n\n<li>Comparar com o Sentinel-2 10 m para valida\u00e7\u00e3o.<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Na sequ\u00eancia do artigo \u201cComo aumentar a resolu\u00e7\u00e3o das imagens Sentinel 2 de 10 para 1 m\u201d e \u201cUtilizar o S2DR3 no Google Colab para o estudo dos corais na Maur\u00edcia\u201d, vamos ver aqui como explorar&hellip;<\/p>\n","protected":false},"author":1,"featured_media":15860,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"give_campaign_id":0,"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"sfsi_plus_gutenberg_text_before_share":"","sfsi_plus_gutenberg_show_text_before_share":"","sfsi_plus_gutenberg_icon_type":"","sfsi_plus_gutenberg_icon_alignemt":"","sfsi_plus_gutenburg_max_per_row":"","_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[3807,3418,2134],"tags":[3813,3815,2693,3817],"class_list":["post-15938","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-images-pt","category-pluigin-pt","category-qgis","tag-google-colab-pt","tag-s2dr3-pt","tag-scp-pt","tag-sentinel-2-pt"],"aioseo_notices":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2025\/10\/scp_b2B3.jpg?fit=2423%2C1548&ssl=1","jetpack_shortlink":"https:\/\/wp.me\/p6XU0A-494","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.sigterritoires.fr\/index.php\/wp-json\/wp\/v2\/posts\/15938","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.sigterritoires.fr\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.sigterritoires.fr\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.sigterritoires.fr\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.sigterritoires.fr\/index.php\/wp-json\/wp\/v2\/comments?post=15938"}],"version-history":[{"count":0,"href":"https:\/\/www.sigterritoires.fr\/index.php\/wp-json\/wp\/v2\/posts\/15938\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.sigterritoires.fr\/index.php\/wp-json\/wp\/v2\/media\/15860"}],"wp:attachment":[{"href":"https:\/\/www.sigterritoires.fr\/index.php\/wp-json\/wp\/v2\/media?parent=15938"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.sigterritoires.fr\/index.php\/wp-json\/wp\/v2\/categories?post=15938"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.sigterritoires.fr\/index.php\/wp-json\/wp\/v2\/tags?post=15938"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}