{"id":1255,"date":"2021-09-27T16:11:52","date_gmt":"2021-09-27T16:11:52","guid":{"rendered":"https:\/\/eodatahub.com\/index.php\/2021\/09\/27\/raster-and-floating-point-geotiffs-what-is-the-differencenasa-earth-observations-neoon-december-23-2020-at-1059-pm\/"},"modified":"2021-09-27T16:17:06","modified_gmt":"2021-09-27T16:17:06","slug":"raster-and-floating-point-geotiffs-what-is-the-differencenasa-earth-observations-neoon-december-23-2020-at-1059-pm","status":"publish","type":"post","link":"https:\/\/eodatahub.com\/index.php\/2021\/09\/27\/raster-and-floating-point-geotiffs-what-is-the-differencenasa-earth-observations-neoon-december-23-2020-at-1059-pm\/","title":{"rendered":"Raster and Floating Point GeoTIFFs: What is the difference?NASA Earth Observations (NEO)on December 23, 2020 at 10:59 pm"},"content":{"rendered":"<p>When you are considering which format to download for a NEO image, there are two GeoTIFF format options: <strong>GeoTIFF (raster)<\/strong> and <strong>GeoTIFF (floating point)<\/strong>. This can be confusing at first. Let\u2019s take a look at both examples using the <a href=\"https:\/\/neo.sci.gsfc.nasa.gov\/view.php?datasetId=MY1DMM_CHLORA\">Chlorophyll Concentration dataset<\/a> to distinguish the two formats.<\/p>\n<p>Here is a screenshot showing the Downloads box with an arrow pointing to where you can select either GeoTiff format and a circle around where the raw data is available for download. <\/p>\n<p>This is the Aqua\/ MODIS Chlorophyll Concentration GeoTIFF (floating point) image for the month of October 2020.<\/p>\n<p>The image above is what downloads when you select <strong>GeoTIFF (floating point)<\/strong>. This is a floating-point image file where each cell has a number with a decimal (ex. 1.1111). We call this format \u201cdata-like\u201d for our purposes because it has been scaled and resampled as part of the processing of the original source data for NEO and the files are simplifications of the original data. Keep this in mind when you are using NEO imagery for analysis\u2014our datasets should not be used for scientific research because they were not calibrated to the precision needed for scientific analysis. \u00a0If you want to do your own processing for scientific research, choose the \u201cDownload Raw Data\u201d option located in the <em>Downloads<\/em> box. <\/p>\n<p>This is the Aqua\/ MODIS Chlorophyll Concentration GeoTIFF (raster) image for the month of October 2020.<\/p>\n<p>To simplify even further, the <strong>GeoTIFF (raster)<\/strong> above is an 8-bit color image. The values are stored as 8 bit grayscale and the color table is applied on-the-fly based on those values.<\/p>\n<p>If you have any additional questions or need further clarification, please email us through the \u201cContact Us\u201d button below.<\/p>\n<p>NASA Earth Observations (NEO)Learn about the difference between the floating point and raster GeoTIFF download options for each dataset.<\/p>","protected":false},"excerpt":{"rendered":"<p>When you are considering which format to download for a NEO image, there are two GeoTIFF format options: GeoTIFF (raster) and GeoTIFF (floating point). This can be confusing at first. Let\u2019s take a look at both examples using the Chlorophyll Concentration dataset to distinguish the two formats. Here is a screenshot showing the Downloads box&hellip; <br \/> <a class=\"read-more\" href=\"https:\/\/eodatahub.com\/index.php\/2021\/09\/27\/raster-and-floating-point-geotiffs-what-is-the-differencenasa-earth-observations-neoon-december-23-2020-at-1059-pm\/\">Read more<\/a><\/p>\n","protected":false},"author":2,"featured_media":1256,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[16],"tags":[],"class_list":["post-1255","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-international-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"When you are considering which format to download for a NEO image, there are two GeoTIFF format options: GeoTIFF (raster) and GeoTIFF (floating point). This can be confusing at first. Let\u2019s take a look at both examples using the Chlorophyll Concentration dataset to distinguish the two formats. Here is a screenshot showing the Downloads box\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"EODataHub\"\/>\n\t<link rel=\"canonical\" href=\"https:\/\/eodatahub.com\/index.php\/2021\/09\/27\/raster-and-floating-point-geotiffs-what-is-the-differencenasa-earth-observations-neoon-december-23-2020-at-1059-pm\/\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 4.9.10\" \/>\n\t\t<meta property=\"og:locale\" content=\"en_US\" \/>\n\t\t<meta property=\"og:site_name\" content=\"EODataHub - Ireland&#039;s Copernicus Academy &amp; Relay EO Browser\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"Raster and Floating Point GeoTIFFs: What is the difference?NASA Earth Observations (NEO)on December 23, 2020 at 10:59 pm - EODataHub\" \/>\n\t\t<meta property=\"og:description\" content=\"When you are considering which format to download for a NEO image, there are two GeoTIFF format options: GeoTIFF (raster) and GeoTIFF (floating point). 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