{"id":21961,"date":"2021-07-22T18:31:30","date_gmt":"2021-07-22T18:31:30","guid":{"rendered":"https:\/\/adenilsongiovanini.com.br\/blog\/?p=21961"},"modified":"2022-08-15T21:32:12","modified_gmt":"2022-08-15T21:32:12","slug":"resolucao-radiometrica-o-que-e","status":"publish","type":"post","link":"https:\/\/adenilsongiovanini.com.br\/blog\/resolucao-radiometrica-o-que-e\/","title":{"rendered":"Resolu\u00e7\u00e3o Radiom\u00e9trica: o que \u00e9?"},"content":{"rendered":"<p style=\"text-align: center;\"><span style=\"font-size: 24px;\"><span id=\"Resolu\u00e7\u00e3o\" class=\"mw-headline\" style=\"font-family: arial, helvetica, sans-serif; color: #000000;\"><span style=\"font-size: 20px; font-family: arial, helvetica, sans-serif; color: #000000; line-height: 1.3;\">A <strong>resolu\u00e7\u00e3o radiom\u00e9trica<\/strong> \u00e9 um dos 4 diferentes tipos de resolu\u00e7\u00f5es existentes no sensoriamento remoto.<\/span><\/span><\/span><\/p>\n<p style=\"text-align: center;\"><span style=\"font-size: 24px;\"><span id=\"Resolu\u00e7\u00e3o\" class=\"mw-headline\" style=\"font-family: arial, helvetica, sans-serif; color: #000000;\"><span style=\"font-size: 20px; font-family: arial, helvetica, sans-serif; color: #000000; line-height: 1.3;\">Os outros 3 tipos de resolu\u00e7\u00e3o existentes s\u00e3o:<\/span><\/span><\/span><\/p>\n<ul>\n<li style=\"text-align: left;\"><span style=\"font-size: 24px;\"><span id=\"Resolu\u00e7\u00e3o\" class=\"mw-headline\" style=\"font-family: arial, helvetica, sans-serif; color: #000000;\"><span style=\"font-size: 20px; font-family: arial, helvetica, sans-serif; color: #000000; line-height: 1.3;\"><span style=\"color: #0000ff;\"><a href=\"https:\/\/adenilsongiovanini.com.br\/blog\/resolucao-espacial-espectral-radiometrica-e\/\" style=\"color: #0000ff;\">Resolu\u00e7\u00e3o espacial<\/a><\/span>;<\/span><\/span><\/span><\/li>\n<li><span style=\"font-size: 24px;\"><span id=\"Resolu\u00e7\u00e3o\" class=\"mw-headline\" style=\"font-family: arial, helvetica, sans-serif; color: #000000;\"><span style=\"font-size: 20px; font-family: arial, helvetica, sans-serif; color: #000000; line-height: 1.3;\"><span style=\"color: #0000ff;\"><a href=\"https:\/\/adenilsongiovanini.com.br\/blog\/resolucao-espectral-espacial-radiometrica-e\/\" style=\"color: #0000ff;\">Resolu\u00e7\u00e3o espectral <\/a><\/span><\/span><\/span><\/span><span style=\"font-size: 24px;\"><span id=\"Resolu\u00e7\u00e3o\" class=\"mw-headline\" style=\"font-family: arial, helvetica, sans-serif; color: #000000;\"><span style=\"font-size: 20px; font-family: arial, helvetica, sans-serif; color: #000000; line-height: 1.3;\">e;<\/span><\/span><\/span><\/li>\n<li style=\"text-align: left;\"><span style=\"font-size: 24px;\"><span id=\"Resolu\u00e7\u00e3o\" class=\"mw-headline\" style=\"font-family: arial, helvetica, sans-serif; color: #000000;\"><span style=\"font-size: 20px; font-family: arial, helvetica, sans-serif; color: #000000; line-height: 1.3;\"><span style=\"color: #0000ff;\"><a href=\"https:\/\/adenilsongiovanini.com.br\/blog\/resolucao-temporal-o-que-e\/\" style=\"color: #0000ff;\"> Resolu\u00e7\u00e3o temporal<\/a><\/span>.<\/span><\/span><\/span><\/li>\n<\/ul>\n<p style=\"text-align: center;\"><span style=\"font-size: 24px;\"><span id=\"Resolu\u00e7\u00e3o\" class=\"mw-headline\" style=\"font-family: arial, helvetica, sans-serif; color: #000000;\"><span style=\"font-size: 20px; font-family: arial, helvetica, sans-serif; color: #000000; line-height: 1.3;\">Por\u00e9m, afinal de contas o que \u00e9 a resolu\u00e7\u00e3o radiom\u00e9trica e qual a diferen\u00e7a entre a mesma e os outros 3 tipos de resolu\u00e7\u00f5es existentes. <\/span><\/span><\/span><span style=\"font-size: 24px;\"><span id=\"Resolu\u00e7\u00e3o\" class=\"mw-headline\" style=\"font-family: arial, helvetica, sans-serif; color: #000000;\"><span style=\"font-size: 20px; font-family: arial, helvetica, sans-serif; color: #000000; line-height: 1.3;\">Isso que voc\u00ea aprender\u00e1 com a leitura deste artigo.<\/span><\/span><\/span><\/p>\n<p>&nbsp;<\/p>\n<h2 style=\"text-align: center;\"><strong><span style=\"font-size: 24px; font-family: arial, helvetica, sans-serif; color: #000000; line-height: 1.3;\">Resolu\u00e7\u00e3o radiom\u00e9trica<\/span><\/strong><\/h2>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-21649\" src=\"https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/07\/resolucao-radiometrica.jpg\" alt=\"resolu\u00e7\u00e3o radiom\u00e9trica\" width=\"780\" height=\"507\" srcset=\"https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/07\/resolucao-radiometrica.jpg 850w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/07\/resolucao-radiometrica-300x195.jpg 300w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/07\/resolucao-radiometrica-768x499.jpg 768w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/07\/resolucao-radiometrica-320x208.jpg 320w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/07\/resolucao-radiometrica-640x416.jpg 640w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/07\/resolucao-radiometrica-360x234.jpg 360w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/07\/resolucao-radiometrica-720x468.jpg 720w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/07\/resolucao-radiometrica-800x520.jpg 800w\" sizes=\"(max-width: 780px) 100vw, 780px\" \/><\/p>\n<p><span style=\"font-size: 20px; font-family: arial, helvetica, sans-serif; color: #000000; line-height: 1.3;\">A <em><strong>resolu\u00e7\u00e3o radiom\u00e9trica<\/strong><\/em> est\u00e1 relacionada ao <em><strong>n\u00edvel de sensibilidade do sensor em detectar pequenas varia\u00e7\u00f5es radiom\u00e9tricas<\/strong><\/em>.<\/span><\/p>\n<p><span style=\"font-size: 20px; font-family: arial, helvetica, sans-serif; color: #000000; line-height: 1.3;\">O n\u00edvel de cinza representa a intensidade de energia eletromagn\u00e9tica (refletida\/emitida) m\u00e9dia medida pelo sensor para a \u00e1rea da superf\u00edcie da Terra correspondente ao tamanho do pixel.<\/span><\/p>\n<p><span style=\"color: #000000; font-family: arial, helvetica, sans-serif; font-size: 20px;\">Cada sensor possui um limite de tons de cinza <\/span><span style=\"font-size: 20px; font-family: arial, helvetica, sans-serif; color: #000000; line-height: 1.3;\">que consegue detectar e armazenar. <\/span><\/p>\n<p><span style=\"font-size: 20px; font-family: arial, helvetica, sans-serif; color: #000000; line-height: 1.3;\">Este limite \u00e9 mensurado em bits. Como os computadores utilizados para este prop\u00f3sito possuem um sistema bin\u00e1rio, o n\u00famero de tons de cinza que o sensor conseguir\u00e1 captar sempre ser\u00e1 igual ao sistema elevado ao n\u00famero de bits. <\/span><\/p>\n<p><span style=\"font-size: 20px; font-family: arial, helvetica, sans-serif; color: #000000; line-height: 1.3;\">No nosso caso, ser\u00e1 2 elevado ao n\u00famero de bits do sensor.<\/span><\/p>\n<p><span style=\"font-size: 20px; font-family: arial, helvetica, sans-serif; color: #000000; line-height: 1.3;\">Por exemplo, o sistema <span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/www.usgs.gov\/core-science-systems\/nli\/landsat\/landsat-7?qt-science_support_page_related_con=0#\">LANDSAT7<\/a><\/span> possui resolu\u00e7\u00e3o de 8 bits. A resolu\u00e7\u00e3o radiom\u00e9trica ser\u00e1 de 2 elevado na 8, o que corresponde a 256 n\u00edveis de cinza.<\/span><\/p>\n<p><span style=\"font-size: 20px; font-family: arial, helvetica, sans-serif; color: #000000; line-height: 1.3;\">No caso do <span style=\"color: #0000ff;\"><a href=\"https:\/\/adenilsongiovanini.com.br\/blog\/ikonos-imagens-caracteristicas-e-aplicacoes\/\" style=\"color: #0000ff;\">IKONOS<\/a><\/span> II, as imagens geradas pelo mesmo possuem profundidade radiom\u00e9trica de 11 bits, o que corresponde a 2 elevado na 11. Ou seja, 2.048 n\u00edveis de cinza, o que aumenta o poder de contraste e de discrimina\u00e7\u00e3o das imagens, inclusive nas \u00e1reas de sombra.<\/span><\/p>\n<p><span style=\"font-size: 20px; font-family: arial, helvetica, sans-serif; color: #000000; line-height: 1.3;\">Agora que voc\u00ea sabe o que \u00e9 a <em><strong>resolu\u00e7\u00e3o radiom\u00e9trica<\/strong><\/em>, olhe para a imagem abaixo.<\/span><\/p>\n<p><span style=\"font-size: 20px; font-family: arial, helvetica, sans-serif; color: #000000; line-height: 1.3;\"><img decoding=\"async\" class=\"aligncenter wp-image-21970\" src=\"https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/07\/impacto-da-resolucao-radiometrica.png\" alt=\"\" width=\"770\" height=\"497\" srcset=\"https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/07\/impacto-da-resolucao-radiometrica.png 778w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/07\/impacto-da-resolucao-radiometrica-300x194.png 300w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/07\/impacto-da-resolucao-radiometrica-768x496.png 768w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/07\/impacto-da-resolucao-radiometrica-320x206.png 320w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/07\/impacto-da-resolucao-radiometrica-640x413.png 640w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/07\/impacto-da-resolucao-radiometrica-360x232.png 360w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/07\/impacto-da-resolucao-radiometrica-720x465.png 720w\" sizes=\"(max-width: 770px) 100vw, 770px\" \/><\/span><\/p>\n<p><span style=\"font-size: 20px; font-family: arial, helvetica, sans-serif; color: #000000; line-height: 1.3;\">Perceba que <strong>quanto mais bits, maior ser\u00e1 a sensibilidade do sensor, sendo que o mesmo gerar\u00e1 imagens com maior riqueza de informa\u00e7\u00e3o<\/strong>.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h4 style=\"text-align: center;\"><span style=\"font-size: 20px;\"><strong><span style=\"font-family: arial, helvetica, sans-serif; color: #000000; line-height: 1.3;\">Diferentes sat\u00e9lites e suas resolu\u00e7\u00f5es radiom\u00e9tricas<\/span><\/strong><\/span><\/h4>\n<p><img decoding=\"async\" class=\"aligncenter size-full wp-image-5211\" src=\"https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2020\/01\/satelite_cw_1.jpg\" alt=\"resolu\u00e7\u00e3o radiom\u00e9trica sat\u00e9lites\" width=\"625\" height=\"469\" srcset=\"https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2020\/01\/satelite_cw_1.jpg 625w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2020\/01\/satelite_cw_1-300x225.jpg 300w\" sizes=\"(max-width: 625px) 100vw, 625px\" \/><\/p>\n<p><span style=\"font-size: 20px; font-family: arial, helvetica, sans-serif; color: #000000; line-height: 1.3;\">Atualmente os sat\u00e9lites mais modernos possuem sensores com resolu\u00e7\u00e3o radiom\u00e9trica de 11 bits ( 2.048 n\u00edveis de cinza) , 12 bits ( 4.096 n\u00edveis de cinza) e 14 bits (16.384 n\u00edveis de cinza). <\/span><\/p>\n<p><span style=\"font-size: 20px; font-family: arial, helvetica, sans-serif; color: #000000; line-height: 1.3;\">Veja na lista abaixo os principais sat\u00e9lites de sensoriamento remoto e suas resolu\u00e7\u00f5es radiom\u00e9tricas.<\/span><\/p>\n<ul>\n<li><span style=\"font-size: 20px; font-family: arial, helvetica, sans-serif; color: #000000; line-height: 1.3;\"><span style=\"color: #0000ff;\"><a href=\"https:\/\/adenilsongiovanini.com.br\/blog\/satelite-landsat-historico-e-aplicacoes\/\" style=\"color: #0000ff;\">Landsat<\/a><\/span> &#8211; 8 bits;<\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">SPOT &#8211; 6 bits na banda pancrom\u00e1tica e 8 bits nas demais bandas;<\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">IRS &#8211; 8 bits;<\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\"><span style=\"color: #0000ff;\"><a href=\"https:\/\/adenilsongiovanini.com.br\/blog\/satelite-cbers-historico-e-aplicacoes\/\" style=\"color: #0000ff;\">CBERS<\/a><\/span> &#8211; 8 bits com excess\u00e3o do CBERS 04A que algumas bandas possuem resolu\u00e7\u00e3o radiom\u00e9trica de 10 bits;<\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">KOMPSAT &#8211; 10 bits;<\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\"><span style=\"color: #0000ff;\"><a href=\"https:\/\/adenilsongiovanini.com.br\/blog\/sentinel-historico-caracteristicas-e-aplicacoes\/\" style=\"color: #0000ff;\">Sentinel<\/a><\/span> &#8211; 10 bits;<\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\"><span style=\"color: #0000ff;\"><a href=\"https:\/\/adenilsongiovanini.com.br\/blog\/ikonos-imagens-caracteristicas-e-aplicacoes\/\" style=\"color: #0000ff;\">IKONOS<\/a><\/span> &#8211; 11 bits;<\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\"><span style=\"color: #0000ff;\"><a href=\"https:\/\/adenilsongiovanini.com.br\/blog\/quickbird-caracteristicas-diferenciais-e-aplicacoes\/\" style=\"color: #0000ff;\">QuickBird<\/a><\/span> &#8211; 11 bits;<\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">Eros &#8211; 11 bits e;<\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\"><span style=\"color: #0000ff;\"><a href=\"https:\/\/adenilsongiovanini.com.br\/blog\/geoeye-imagens-caracteristicas-e-aplicacoes\/\" style=\"color: #0000ff;\">GeoEye<\/a><\/span> &#8211; 11 bits tanto na banda pancrom\u00e1tica como na multiespectral e;<\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\"><span style=\"color: #0000ff;\"><a href=\"https:\/\/adenilsongiovanini.com.br\/blog\/rapideye-historico-caracteristicas-e-aplicacoes\/\" style=\"color: #0000ff;\">Rapideye<\/a><\/span> &#8211; 12 bits<\/span><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">.<\/span><\/li>\n<\/ul>\n<h2 style=\"text-align: center;\"><strong><span style=\"font-size: 24px; font-family: arial, helvetica, sans-serif; color: #000000; line-height: 1.3;\">Resolu\u00e7\u00e3o radiom\u00e9trica &#8211; Os outros tipos de resolu\u00e7\u00f5es existentes<\/span><\/strong><\/h2>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-21964\" src=\"https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/07\/satelites.png\" alt=\"Os outros tipos de resolu\u00e7\u00f5es espaciais existentes\" width=\"780\" height=\"472\" srcset=\"https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/07\/satelites.png 1024w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/07\/satelites-300x182.png 300w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/07\/satelites-768x465.png 768w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/07\/satelites-320x194.png 320w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/07\/satelites-640x388.png 640w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/07\/satelites-360x218.png 360w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/07\/satelites-720x436.png 720w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/07\/satelites-800x484.png 800w\" sizes=\"(max-width: 780px) 100vw, 780px\" \/><\/p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">Al\u00e9m da resolu\u00e7\u00e3o radiom\u00e9trica, existe a resolu\u00e7\u00e3o espacial, a resolu\u00e7\u00e3o espectral e a resolu\u00e7\u00e3o temporal. Vamos conhecer cada uma das mesmas.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h3 style=\"text-align: center;\"><span style=\"font-size: 20px;\"><strong><span id=\"Resolu\u00e7\u00e3o\" class=\"mw-headline\" style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Resolu\u00e7\u00e3o espacial<\/span><\/strong><\/span><\/h3>\n<p style=\"text-align: center;\"><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">A<em><strong> resolu\u00e7\u00e3o espacial<\/strong><\/em> de uma imagem refere-se ao <strong><em>tamanho que a \u00e1rea abarcada em um pixel corresponde na realidade<\/em><\/strong>.<\/span><\/p>\n<p style=\"text-align: center;\"><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">Para um mesmo <span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/adenilsongiovanini.com.br\/blog\/sensoriamento-remoto\/\">sensor remoto<\/a><\/span>, cada pixel representa sempre uma mesma \u00e1rea, com as mesmas dimens\u00f5es na superf\u00edcie da Terra.<\/span><\/p>\n<p style=\"text-align: center;\"><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">Olhe para a imagem abaixo e perceba que conforme a resolu\u00e7\u00e3o espacial aumenta, o carro se torna foto identific\u00e1vel.<\/span><\/p>\n<p><img decoding=\"async\" class=\"aligncenter\" src=\"https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/05\/resolucao-espacial.jpg\" title=\"\" alt=\"\" \/><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-size: 20px; font-family: arial, helvetica, sans-serif; color: #000000; line-height: 1.3;\">Perceba que quanto menor for o tamanho da \u00e1rea real abarcada em um pixel, maior ser\u00e1 a resolu\u00e7\u00e3o espacial da imagem, o que significa que maior ser\u00e1 a capacidade de registrar objetos existentes na superf\u00edcie terrestre.<\/span><\/p>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-21642\" src=\"https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/07\/resolucao-espacial.png\" alt=\"resolu\u00e7\u00e3o espacial\" width=\"949\" height=\"629\" srcset=\"https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/07\/resolucao-espacial.png 949w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/07\/resolucao-espacial-300x199.png 300w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/07\/resolucao-espacial-768x509.png 768w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/07\/resolucao-espacial-320x212.png 320w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/07\/resolucao-espacial-640x424.png 640w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/07\/resolucao-espacial-360x239.png 360w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/07\/resolucao-espacial-720x477.png 720w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/07\/resolucao-espacial-800x530.png 800w\" sizes=\"(max-width: 949px) 100vw, 949px\" \/><\/p>\n<p>&nbsp;<\/p>\n<h3 style=\"text-align: center;\"><span style=\"font-size: 20px;\"><strong><span style=\"font-family: arial, helvetica, sans-serif; color: #000000; line-height: 1.3;\">Resolu\u00e7\u00e3o espectral<\/span><\/strong><\/span><\/h3>\n<p><img decoding=\"async\" class=\"aligncenter size-full wp-image-21644\" src=\"https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/07\/resolucao-espectral.jpg\" alt=\"reslu\u00e7\u00e3o espectral\" width=\"638\" height=\"479\" srcset=\"https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/07\/resolucao-espectral.jpg 638w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/07\/resolucao-espectral-300x225.jpg 300w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/07\/resolucao-espectral-320x240.jpg 320w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/07\/resolucao-espectral-360x270.jpg 360w\" sizes=\"(max-width: 638px) 100vw, 638px\" \/><\/p>\n<p><span style=\"font-size: 20px; font-family: arial, helvetica, sans-serif; color: #000000; line-height: 1.3;\">A <em><strong>resolu\u00e7\u00e3o espectral<\/strong><\/em> tem a ver com o <strong><em>n\u00famero de bandas que os sensores existentes nos sat\u00e9lites consegue discretizar<\/em><\/strong>.<\/span><\/p>\n<p><span style=\"font-size: 20px; font-family: arial, helvetica, sans-serif; color: #000000; line-height: 1.3;\">De uma maneira simplificada, quando a energia solar atinge a superf\u00edcie terrestre, parte desta energia \u00e9 absorvida e parte \u00e9 refletida. Esta energia \u00e9 emitida pela superf\u00edcie terrestre atrav\u00e9s de ondas. <\/span><\/p>\n<p><span style=\"font-size: 20px; font-family: arial, helvetica, sans-serif; color: #000000; line-height: 1.3;\">Cada sensor trabalha com um intervalo correspondente destas ondas do <span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/adenilsongiovanini.com.br\/blog\/espectro-eletromagnetico\/\">espectro eletromagn\u00e9tico<\/a><\/span> que s\u00e3o emitidas. <\/span><\/p>\n<p><span style=\"font-size: 20px; font-family: arial, helvetica, sans-serif; color: #000000; line-height: 1.3;\">A figura abaixo demonstra o segmento do espectro eletromagn\u00e9tico correspondente aos sensores remotos. <\/span><\/p>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-21643\" src=\"https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/07\/espectro-eletromagnetico.png\" alt=\"espectro eletromagn\u00e9tico\" width=\"850\" height=\"313\" srcset=\"https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/07\/espectro-eletromagnetico.png 850w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/07\/espectro-eletromagnetico-300x110.png 300w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/07\/espectro-eletromagnetico-768x283.png 768w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/07\/espectro-eletromagnetico-320x118.png 320w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/07\/espectro-eletromagnetico-640x236.png 640w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/07\/espectro-eletromagnetico-360x133.png 360w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/07\/espectro-eletromagnetico-720x265.png 720w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/07\/espectro-eletromagnetico-800x295.png 800w\" sizes=\"(max-width: 850px) 100vw, 850px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h3 style=\"text-align: center;\"><strong><span style=\"font-size: 20px; font-family: arial, helvetica, sans-serif; color: #000000; line-height: 1.3;\">Resolu\u00e7\u00e3o temporal<\/span><\/strong><\/h3>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-21646\" src=\"https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/07\/resolucao-temporal.jpg\" alt=\"resolu\u00e7\u00e3o temporal\" width=\"780\" height=\"278\" srcset=\"https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/07\/resolucao-temporal.jpg 800w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/07\/resolucao-temporal-300x107.jpg 300w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/07\/resolucao-temporal-768x274.jpg 768w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/07\/resolucao-temporal-320x114.jpg 320w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/07\/resolucao-temporal-640x228.jpg 640w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/07\/resolucao-temporal-360x128.jpg 360w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/07\/resolucao-temporal-720x257.jpg 720w\" sizes=\"(max-width: 780px) 100vw, 780px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-size: 20px; font-family: arial, helvetica, sans-serif; color: #000000; line-height: 1.3;\">A <em><strong>resolu\u00e7\u00e3o temporal<\/strong><\/em> corresponde ao <em><strong>tempo que o sat\u00e9lite leva para recobrir a mesma \u00e1rea novamente<\/strong><\/em>.<\/span><\/p>\n<p><span style=\"font-size: 20px; font-family: arial, helvetica, sans-serif; color: #000000; line-height: 1.3;\">Uma <span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/pt.wikipedia.org\/wiki\/%C3%93rbita\">\u00f3rbita<\/a><\/span> do Landsat7 \u00e9 realizada em aproximadamente 99 minutos, permitindo ao sat\u00e9lite dar 14 voltas da Terra por dia, e a cobertura total do nosso planeta sendo completada em 16 dias.<\/span><\/p>\n<p><span style=\"font-size: 20px; font-family: arial, helvetica, sans-serif; color: #000000; line-height: 1.3;\">A \u00f3rbita \u00e9 descendente, ou seja de norte para sul, o sat\u00e9lite cruzando a linha do Equador entre 10:00 e 10:15 (hora local) em cada passagem.<\/span><\/p>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-21645\" src=\"https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/07\/orbitas.png\" alt=\"\u00f3rbitas dos sat\u00e9lites\" width=\"780\" height=\"522\" srcset=\"https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/07\/orbitas.png 938w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/07\/orbitas-300x201.png 300w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/07\/orbitas-768x514.png 768w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/07\/orbitas-320x214.png 320w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/07\/orbitas-640x428.png 640w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/07\/orbitas-360x241.png 360w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/07\/orbitas-720x482.png 720w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/07\/orbitas-800x536.png 800w\" sizes=\"(max-width: 780px) 100vw, 780px\" \/><\/p>\n<p><span style=\"font-size: 20px; font-family: arial, helvetica, sans-serif; color: #000000; line-height: 1.3;\">O Landsat7 \u00e9 &#8220;heliosincronizado&#8221;, ou seja sempre passa num mesmo local dado ao mesmo hor\u00e1rio solar. <\/span><\/p>\n<p><span style=\"font-size: 20px; font-family: arial, helvetica, sans-serif; color: #000000; line-height: 1.3;\">O sistema SPOT 5 com uma \u00f3rbita na altitude de 832 km permite recobrir a mesma \u00e1rea num intervalo de 26 dias.<\/span><\/p>\n<p><span style=\"font-size: 20px; font-family: arial, helvetica, sans-serif; color: #000000; line-height: 1.3;\">O sistema CBERS, atrav\u00e9s de seus instrumentos imageadores permite uma revisita de 26 dias.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h2 style=\"text-align: center;\"><strong><span style=\"font-size: 20px; font-family: arial, helvetica, sans-serif; color: #000000; line-height: 1.3;\">Resolu\u00e7\u00e3o Radiom\u00e9trica &#8211; Apresenta\u00e7\u00e3o na qual o artigo se baseou<\/span><\/strong><\/h2>\n<p><span style=\"font-size: 20px; font-family: arial, helvetica, sans-serif; color: #000000; line-height: 1.3;\">Este artigo se baseou em uma apresenta\u00e7\u00e3o do laborat\u00f3rio de Geoprocessamento da UFJF.<\/span><\/p>\n<p><span style=\"font-size: 20px; font-family: arial, helvetica, sans-serif; color: #000000; line-height: 1.3;\">Para dar uma espiada na mesma \u00e9 s\u00f3 <span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/www.ufjf.br\/lga\/files\/2011\/03\/10-Caracter%C3%ADsticas-da-Imagens.pdf\" rel=\"nofollow noreferrer\">acessar este link<\/a><\/span>.<\/span><\/p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">V\u00eddeo a respeito do assunto.<\/span><\/p>\n<p><center><iframe width=\"853\" height=\"480\" title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/o38QO5GxB-k\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/center><\/p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">\u00c9 isso por este artigo. Lembrando que eu tamb\u00e9m possuo uma s\u00e9rie de <strong>cursos e de livros pr\u00e1ticos<\/strong>. <\/span><\/p>\n<p><span style=\"font-size: 20px; font-family: arial, helvetica, sans-serif; color: #000000; line-height: 1.3;\">Se voc\u00ea quer<strong> MERGULHAR FUNDO e aprender a prestar servi\u00e7os com grande velocidade e com seguran\u00e7a<\/strong>, <span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/adenilsongiovanini.com.br\/cursos-online\/\">acesse este link<\/a><\/span> e conhe\u00e7a os mesmos.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"color: #000000;\"><span style=\"font-size: 20px; font-family: arial, helvetica, sans-serif; line-height: 1.3;\">Entre eles, o <span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/adenilsongiovanini.com.br\/curso-de-autocad-para-topografia\/\" target=\"_blank\" rel=\"noopener noreferrer\">Curso de Confec\u00e7\u00e3o de Plantas Topogr\u00e1ficas<\/a><\/span>. <span style=\"color: #000000;\">Um <\/span><\/span><span style=\"font-size: 20px; font-family: arial, helvetica, sans-serif; line-height: 1.3;\">curso pr\u00e1tico\u00a0<\/span><span style=\"font-size: 20px; font-family: arial, helvetica, sans-serif; line-height: 1.3;\">com o qual voc\u00ea vai <strong>aprender a produzir as 15 diferentes plantas produzidas em um escrit\u00f3rio de topografia<\/strong>.<\/span><\/span><\/p>\n<p><a href=\"https:\/\/adenilsongiovanini.com.br\/curso-de-autocad-para-topografia\/\" target=\"_blank\" rel=\"noopener noreferrer\"><img decoding=\"async\" class=\"aligncenter wp-image-31689\" src=\"https:\/\/adenilsongiovanini.com.br\/wp-content\/uploads\/2022\/07\/planta-de-topografia-1024x612.png\" alt=\"\" width=\"770\" height=\"460\" \/><\/a><\/p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">Clique <a href=\"https:\/\/adenilsongiovanini.com.br\/curso-de-autocad-para-topografia\/\" target=\"_blank\" rel=\"noopener noreferrer\"><span style=\"color: #0000ff;\">neste link<\/span><\/a> e conhe\u00e7a melhor o mesmo.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-size: 20px; font-family: arial, helvetica, sans-serif; color: #000000; line-height: 1.3;\">Um dos cursos que possuo \u00e9 o <span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/adenilsongiovanini.com.br\/blog\/curso-de-topografia-com-drones\/\">Curso de Topografia Com Drones<\/a><\/span>. Um curso com o qual voc\u00ea vai <strong>DOMINAR O ASSUNTO<\/strong>.<\/span><\/p>\n<p><span style=\"font-size: 20px; font-family: arial, helvetica, sans-serif; color: #000000; line-height: 1.3;\">Tamb\u00e9m sou o autor do <span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/adenilsongiovanini.com.br\/livro-topografia-com-drones\/\">Livro Topografia Com Drones <\/a><\/span>que \u00e9 o livro mais completo do Brasil sobre o tema.<\/span><\/p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">Gratid\u00e3o por voc\u00ea ter lido o artigo. \ud83d\ude4f<\/span><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h2 style=\"text-align: center;\"><span style=\"font-family: arial, helvetica, sans-serif; color: #000000; font-size: 24px;\"><strong>Domine a Opera\u00e7\u00e3o de Drones Atrav\u00e9s de um Livro Formado Por <\/strong><\/span><span style=\"font-family: arial, helvetica, sans-serif; color: #000000; font-size: 24px;\"><strong>E<\/strong><\/span><span style=\"font-family: arial, helvetica, sans-serif; color: #000000; font-size: 24px;\"><strong>xemplos Pr\u00e1ticos e <\/strong><\/span><span style=\"font-family: arial, helvetica, sans-serif; color: #000000; font-size: 24px;\"><strong>Estudos de Caso <\/strong><\/span><\/h2>\n<h2 style=\"text-align: center;\"><img decoding=\"async\" class=\"aligncenter size-large wp-image-25478\" src=\"https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/08\/livro-drones-780x434.png\" alt=\"livro drone topografia\" width=\"780\" height=\"434\" srcset=\"https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/08\/livro-drones-780x434.png 780w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/08\/livro-drones-300x167.png 300w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/08\/livro-drones-768x427.png 768w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/08\/livro-drones-350x195.png 350w, https:\/\/adenilsongiovanini.com.br\/blog\/wp-content\/uploads\/2021\/08\/livro-drones.png 1405w\" sizes=\"(max-width: 780px) 100vw, 780px\" \/><\/h2>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">A <span style=\"text-decoration: underline;\"><em>1 clique de dist\u00e2ncia de voc\u00ea<\/em><\/span> encontra-se um livro com <strong>os Conhecimentos Que Voc\u00ea Precisa Para Operar Drones Com Grande Velocidade e Com Seguran\u00e7a!<\/strong><\/span><\/p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">O mesmo \u00e9 formado por 9 cap\u00edtulos estrategicamente estruturados. <\/span><\/p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 20px; color: #000000;\">Se voc\u00ea quer <em>(ou precisa)<\/em> dominar a opera\u00e7\u00e3o de drones, este livro servir\u00e1 como uma luva para voc\u00ea. <\/span><\/p>\n<p><span style=\"font-size: 20px;\"><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">D\u00ea uma espiadinha no sum\u00e1rio do mesmo:<\/span><\/span><\/p>\n<p><center><iframe width=\"95%\" height=\"880\" src=\"https:\/\/drive.google.com\/file\/d\/142hFJEIc8YQTefKBBqcm5WIq3kR4hhX8\/preview\" data-mce-fragment=\"1\"><\/iframe><\/center><\/p>\n<p><span style=\"font-size: 20px;\"><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Para conhecer melhor a estrutura do livro e os 3 b\u00f4nus que voc\u00ea ganhar\u00e1 juntamente com o mesmo \u00e9 s\u00f3 clicar no bot\u00e3o abaixo:<\/span><\/span><\/p>\n<p>&nbsp;<\/p>\n<div class=\"su-button-center\"><a href=\"https:\/\/adenilsongiovanini.com.br\/livro-topografia-com-drones\/\" class=\"su-button su-button-style-3d\" style=\"color:#000000;background-color:#2BCC2F;border-color:#23a426;border-radius:13px\" target=\"_blank\" rel=\"nofollow\" id=\"1\"><span style=\"color:#000000;padding:0px 32px;font-size:23px;line-height:46px;border-color:#6bdc6e;border-radius:13px;text-shadow:0px 0px 0px #000000\"> &gt; Quero Conhecer Melhor o Livro e Adquirir Minha C\u00f3pia do Mesmo&#8230;<\/span><\/a><\/div>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A resolu\u00e7\u00e3o radiom\u00e9trica \u00e9 um dos 4 diferentes tipos de resolu\u00e7\u00f5es existentes no sensoriamento remoto. Os outros 3 tipos de resolu\u00e7\u00e3o existentes s\u00e3o: Resolu\u00e7\u00e3o espacial; Resolu\u00e7\u00e3o espectral e; Resolu\u00e7\u00e3o temporal. Por\u00e9m, afinal de contas o que \u00e9 a resolu\u00e7\u00e3o radiom\u00e9trica e qual a diferen\u00e7a entre a mesma e os outros [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":21965,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[56,54],"tags":[],"class_list":["post-21961","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sensoriamento-remoto","category-topografia-com-drones"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Resolu\u00e7\u00e3o Radiom\u00e9trica: o que \u00e9? - Adenilson Giovanini<\/title>\n<meta name=\"description\" content=\"Descubra o que \u00e9 a resolu\u00e7\u00e3o radiom\u00e9trica, qual a resolu\u00e7\u00e3o dos diferentes sat\u00e9lites e quais os outros tipos de resolu\u00e7\u00f5es existentes.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/adenilsongiovanini.com.br\/blog\/resolucao-radiometrica-o-que-e\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Resolu\u00e7\u00e3o Radiom\u00e9trica: o que \u00e9? 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