{"id":1997,"date":"2024-07-23T12:47:34","date_gmt":"2024-07-23T12:47:34","guid":{"rendered":"https:\/\/fis.rub.de\/wp-interface\/?p=1997"},"modified":"2024-10-09T07:14:34","modified_gmt":"2024-10-09T07:14:34","slug":"reflection-from-satellite","status":"publish","type":"post","link":"https:\/\/fis.rub.de\/wp-interface\/reflection-from-satellite\/","title":{"rendered":"Reflection in Focus- <br>Earth Observation by Radar Satellites"},"content":{"rendered":"\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container\">\n<h2>Reflection in Focus &#8211; Earth Observation by Radar Satellites<\/h2>\n\n\n\n<p>Radar satellites use the reflective properties of the Earth&#8217;s surface to gather valuable information. These satellites send electromagnetic waves to the Earth, which are reflected back from the surface and return to the satellite. The analysis of these returning signals makes it possible to identify different materials, structures, and even changes over time. But how do radar satellites use reflection to capture and analyze data about the Earth&#8217;s surface? And what can actually be detected in radar images?<\/p>\n\n\n\n\n<h2><\/h2>\n\n\n\n<ul>\n<li>Use the <em><strong>worksheet<\/strong> <\/em>for this lesson to explore the phenomenon of reflection from the perspective of radar satellites with the help of the satellite image!<\/li>\n<li>\n<div class=\"flex-shrink-0 flex flex-col relative items-end\">\n<div>\n<div class=\"pt-0\">\n<div class=\"gizmo-bot-avatar flex h-8 w-8 items-center justify-center overflow-hidden rounded-full\">\n<div class=\"relative p-1 rounded-sm flex items-center justify-center bg-token-main-surface-primary text-token-text-primary h-8 w-8\"><span style=\"font-size: revert;\">Watch the <em><strong>learning video<\/strong><\/em> and read the <em><strong>operating instructions<\/strong><\/em> carefully!<\/span><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image\"><img alt=\"\"\/><\/figure>\n\n\n\n\n<h4>Learning Video:<\/h4>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"Specular and Diffuse Reflection in Radar Images\" width=\"580\" height=\"326\" src=\"https:\/\/www.youtube.com\/embed\/5r1FmTWmvG4?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><figcaption>How do radar satellites use reflection to analyze the Earth&#8217;s surface?<\/figcaption><\/figure>\n\n\n\n<h4><strong>Operating Instructions:<\/strong><\/h4>\n<p><\/p>\n<h5>1. Display&nbsp; the interactive map:<\/h5>\n<p>Simply click on <strong><img loading=\"lazy\" class=\"alignnone  wp-image-1883\" src=\"https:\/\/fis.rub.de\/wp-interface\/wp-content\/uploads\/2023\/02\/Karte_einblenden-e1709544858392.jpg\" alt=\"\" width=\"156\" height=\"25\"><\/strong>to switch to the interactive map and work with the satellite data. Mit einem Klick auf <img loading=\"lazy\" class=\"alignnone  wp-image-1882\" src=\"https:\/\/fis.rub.de\/wp-interface\/wp-content\/uploads\/2023\/02\/Inhalte_einblenden.jpg\" alt=\"\" width=\"187\" height=\"30\">, you can return here!<\/p>\n<p><\/p>\n<h5>2. Working on the Interactive Map:<\/h5>\n<ol>\n<li>Click on the icon:<img loading=\"lazy\" class=\"alignnone  wp-image-1885\" src=\"https:\/\/fis.rub.de\/wp-interface\/wp-content\/uploads\/2023\/02\/Daten_click.jpg\" alt=\"\" width=\"131\" height=\"36\"> in the interactive map to display details about the satellite data.<\/li>\n<li>This button<img loading=\"lazy\" class=\"alignnone  wp-image-1884\" src=\"https:\/\/fis.rub.de\/wp-interface\/wp-content\/uploads\/2023\/02\/Bander_click-e1709545636194.jpg\" alt=\"\" width=\"161\" height=\"41\"> displays an image of the dataset on the map (there is only one image in this dataset).<\/li>\n<li>You can also use it to hide and show the image again, which is indicated by this icon:<img loading=\"lazy\" class=\"alignnone size-full wp-image-1888\" src=\"https:\/\/fis.rub.de\/wp-interface\/wp-content\/uploads\/2023\/02\/eyevis_click.jpg\" alt=\"\" width=\"26\" height=\"24\"><img loading=\"lazy\" class=\"alignnone size-full wp-image-1887\" src=\"https:\/\/fis.rub.de\/wp-interface\/wp-content\/uploads\/2023\/02\/eye_click.jpg\" alt=\"\" width=\"27\" height=\"24\">&nbsp;<\/li>\n<li>If you activate this button <img loading=\"lazy\" class=\"alignnone  wp-image-1910\" src=\"https:\/\/fis.rub.de\/wp-interface\/wp-content\/uploads\/2023\/02\/Pipette_click.jpg\" alt=\"\" width=\"36\" height=\"24\"> at the bottom of the image, you can read the reflection strength of the pixels. The higher the number (0-255), the stronger the reflection. A click on the image deactivates the mode.<\/li>\n<\/ol>\n<div class=\"flex-shrink-0 flex flex-col relative items-end\">\n<div>\n<div class=\"pt-0\">\n<div class=\"gizmo-bot-avatar flex h-8 w-8 items-center justify-center overflow-hidden rounded-full\">\n<div class=\"relative p-1 rounded-sm flex items-center justify-center bg-token-main-surface-primary text-token-text-primary h-8 w-8\">&nbsp;<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"group\/conversation-turn relative flex w-full min-w-0 flex-col agent-turn\">\n<div class=\"flex-col gap-1 md:gap-3\">\n<div class=\"flex flex-grow flex-col max-w-full\">\n<div class=\"min-h-[20px] text-message flex w-full flex-col items-end gap-2 whitespace-pre-wrap break-words [.text-message+&amp;]:mt-5 overflow-x-auto\" dir=\"auto\" data-message-author-role=\"assistant\" data-message-id=\"ecb93abf-2919-4339-9567-ec1e0d23645e\">\n<div class=\"flex w-full flex-col gap-1 empty:hidden first:pt-[3px]\">\n<div class=\"markdown prose w-full break-words dark:prose-invert light\">\n<p>The tools you can use to edit the image are accessed by clicking on &#8220;Tools&#8221;<span style=\"color: #ff0000;\">(1)<\/span><span style=\"font-size: revert;\"> auf. The help button <\/span><span style=\"color: #ff0000;\">(2)<\/span><span style=\"font-size: revert;\"> shows a short video explaining how to use the tool<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><img loading=\"lazy\" class=\"wp-image-1886 aligncenter\" src=\"https:\/\/fis.rub.de\/wp-interface\/wp-content\/uploads\/2023\/02\/Tools_click-300x222.jpg\" alt=\"\" width=\"402\" height=\"297\" srcset=\"https:\/\/fis.rub.de\/wp-interface\/wp-content\/uploads\/2023\/02\/Tools_click-300x222.jpg 300w, https:\/\/fis.rub.de\/wp-interface\/wp-content\/uploads\/2023\/02\/Tools_click.jpg 530w\" sizes=\"(max-width: 402px) 100vw, 402px\" \/><\/p>\n<h5>&nbsp;<\/h5>\n<h5>3. What exactly does the tool do?<\/h5>\n<p>The tool marks pixels in the radar image that look similar, meaning they have similar reflection properties.<\/p>\n<p>You activate the button <img loading=\"lazy\" class=\"alignnone  wp-image-1901\" src=\"https:\/\/fis.rub.de\/wp-interface\/wp-content\/uploads\/2023\/02\/Pixel_click.jpg\" alt=\"\" width=\"142\" height=\"25\">&nbsp; and then click on a pixel in the satellite image. The tool will now mark all other pixels in the satellite image that are similar, meaning they have similar reflection properties. You can adjust how similar they need to be using the &#8220;Adjust Tolerance&#8221; slider. <img loading=\"lazy\" class=\"alignnone  wp-image-1902\" src=\"https:\/\/fis.rub.de\/wp-interface\/wp-content\/uploads\/2023\/02\/adjusl_click.jpg\" alt=\"\" width=\"133\" height=\"37\">&nbsp;<\/p>\n<ul>\n<li><strong>0 means:<\/strong> Zero tolerance! Only pixels that have exactly the same value (reflection) as the pixel selected in the image will be marked.<\/li>\n<li><strong>100 means:<\/strong> Very tolerant! Pixels will be marked that fall within a value range of \u00b1100 around the selected pixel.<\/li>\n<\/ul>\n<p>After a short calculation time, the tool displays the area of the marked region in square meters in the satellite image.<\/p>\n\n\n\n\n<div class=\"wp-block-file\"><a href=\"https:\/\/fis.rub.de\/wp-interface\/wp-content\/uploads\/2023\/02\/subset_Sentinel-1GRD_IW_VV_DB_2023-09-13_Palamas_no0_uint.tif\">subset_Sentinel-1GRD_IW_VV_DB_2023-09-13_Palamas_no0_uint<\/a><a href=\"https:\/\/fis.rub.de\/wp-interface\/wp-content\/uploads\/2023\/02\/subset_Sentinel-1GRD_IW_VV_DB_2023-09-13_Palamas_no0_uint.tif\" class=\"wp-block-file__button\" download>Download<\/a><\/div>\n\n\n\n\n<p class=\"wp-block-create-block-eotools\">Eotools \u2013 hello from the saved content!<\/p>\n\n\n\n\n<div class=\"wp-block-file\"><a href=\"https:\/\/fis.rub.de\/wp-interface\/wp-content\/uploads\/2024\/07\/Reflection-in-focus_Material.zip\">Reflection in focus_Material<\/a><a href=\"https:\/\/fis.rub.de\/wp-interface\/wp-content\/uploads\/2024\/07\/Reflection-in-focus_Material.zip\" class=\"wp-block-file__button\" download>Download<\/a><\/div>\n\n<\/div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Reflection is a key phenomenon that seems as natural to us as our own reflection in a mirror. In reality, it goes far beyond that. How far? Well, in our example, it&#8217;s about 700 km into space. This is because radar satellites also use the reflective properties of the Earth&#8217;s surface to gather valuable information. These satellites send electromagnetic waves to Earth, which are reflected by the surface and return to the satellite. Analyzing these returning signals makes it possible to identify different materials, structures, and even changes over time. But how do radar satellites use reflection to capture and analyze data about the Earth&#8217;s surface? And what can actually be recognized in radar images?<\/p>\n<p>Topics: Reflection, Satellite Images, Radar, Electromagnetic Waves, Flooding, Surfaces<\/p>\n","protected":false},"author":2,"featured_media":2003,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":[],"categories":[27,43,19,20,41,18,25],"tags":[],"blocks":[{"blockName":"core\/group","attrs":{"chapter":1},"innerBlocks":[{"blockName":"core\/heading","attrs":[],"innerBlocks":[],"innerHTML":"\n<h2>Reflection in Focus - Earth Observation by Radar Satellites<\/h2>\n","innerContent":["\n<h2>Reflection in Focus - Earth Observation by Radar Satellites<\/h2>\n"]},{"blockName":"core\/freeform","attrs":[],"innerBlocks":[],"innerHTML":"\n<p>Radar satellites use the reflective properties of the Earth's surface to gather valuable information. These satellites send electromagnetic waves to the Earth, which are reflected back from the surface and return to the satellite. The analysis of these returning signals makes it possible to identify different materials, structures, and even changes over time. But how do radar satellites use reflection to capture and analyze data about the Earth's surface? And what can actually be detected in radar images?<\/p>\n","innerContent":["\n<p>Radar satellites use the reflective properties of the Earth's surface to gather valuable information. These satellites send electromagnetic waves to the Earth, which are reflected back from the surface and return to the satellite. The analysis of these returning signals makes it possible to identify different materials, structures, and even changes over time. But how do radar satellites use reflection to capture and analyze data about the Earth's surface? And what can actually be detected in radar images?<\/p>\n"]},{"blockName":"create-block\/arbeitsauftrag","attrs":[],"innerBlocks":[{"blockName":"core\/heading","attrs":{"placeholder":"Titel hinzuf\u00fcgen"},"innerBlocks":[],"innerHTML":"\n<h2><\/h2>\n","innerContent":["\n<h2><\/h2>\n"]},{"blockName":"core\/freeform","attrs":[],"innerBlocks":[],"innerHTML":"\n<ul>\n<li>Use the <em><strong>worksheet<\/strong> <\/em>for this lesson to explore the phenomenon of reflection from the perspective of radar satellites with the help of the satellite image!<\/li>\n<li>\n<div class=\"flex-shrink-0 flex flex-col relative items-end\">\n<div>\n<div class=\"pt-0\">\n<div class=\"gizmo-bot-avatar flex h-8 w-8 items-center justify-center overflow-hidden rounded-full\">\n<div class=\"relative p-1 rounded-sm flex items-center justify-center bg-token-main-surface-primary text-token-text-primary h-8 w-8\"><span style=\"font-size: revert;\">Watch the <em><strong>learning video<\/strong><\/em> and read the <em><strong>operating instructions<\/strong><\/em> carefully!<\/span><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/li>\n<\/ul>\n","innerContent":["\n<ul>\n<li>Use the <em><strong>worksheet<\/strong> <\/em>for this lesson to explore the phenomenon of reflection from the perspective of radar satellites with the help of the satellite image!<\/li>\n<li>\n<div class=\"flex-shrink-0 flex flex-col relative items-end\">\n<div>\n<div class=\"pt-0\">\n<div class=\"gizmo-bot-avatar flex h-8 w-8 items-center justify-center overflow-hidden rounded-full\">\n<div class=\"relative p-1 rounded-sm flex items-center justify-center bg-token-main-surface-primary text-token-text-primary h-8 w-8\"><span style=\"font-size: revert;\">Watch the <em><strong>learning video<\/strong><\/em> and read the <em><strong>operating instructions<\/strong><\/em> carefully!<\/span><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/li>\n<\/ul>\n"]},{"blockName":"core\/image","attrs":[],"innerBlocks":[],"innerHTML":"\n<figure class=\"wp-block-image\"><img alt=\"\"\/><\/figure>\n","innerContent":["\n<figure class=\"wp-block-image\"><img alt=\"\"\/><\/figure>\n"]}],"innerHTML":"\n\n\n\n\n\n","innerContent":["\n",null,"\n\n",null,"\n\n",null,"\n"]},{"blockName":"core\/freeform","attrs":[],"innerBlocks":[],"innerHTML":"\n<h4>Learning Video:<\/h4>\n","innerContent":["\n<h4>Learning Video:<\/h4>\n"]},{"blockName":"core\/embed","attrs":{"url":"https:\/\/youtu.be\/5r1FmTWmvG4","type":"video","providerNameSlug":"youtube","responsive":true,"className":"wp-embed-aspect-16-9 wp-has-aspect-ratio"},"innerBlocks":[],"innerHTML":"\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\nhttps:\/\/youtu.be\/5r1FmTWmvG4\n<\/div><figcaption>How do radar satellites use reflection to analyze the Earth's surface?<\/figcaption><\/figure>\n","innerContent":["\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\nhttps:\/\/youtu.be\/5r1FmTWmvG4\n<\/div><figcaption>How do radar satellites use reflection to analyze the Earth's surface?<\/figcaption><\/figure>\n"]},{"blockName":"core\/freeform","attrs":[],"innerBlocks":[],"innerHTML":"\n<h4><strong>Operating Instructions:<\/strong><\/h4>\n<p><\/p>\n<h5>1. Display&nbsp; the interactive map:<\/h5>\n<p>Simply click on <strong><img class=\"alignnone  wp-image-1883\" src=\"https:\/\/fis.rub.de\/wp-interface\/wp-content\/uploads\/2023\/02\/Karte_einblenden-e1709544858392.jpg\" alt=\"\" width=\"156\" height=\"25\"><\/strong>to switch to the interactive map and work with the satellite data. Mit einem Klick auf <img class=\"alignnone  wp-image-1882\" src=\"https:\/\/fis.rub.de\/wp-interface\/wp-content\/uploads\/2023\/02\/Inhalte_einblenden.jpg\" alt=\"\" width=\"187\" height=\"30\">, you can return here!<\/p>\n<p><\/p>\n<h5>2. Working on the Interactive Map:<\/h5>\n<ol>\n<li>Click on the icon:<img class=\"alignnone  wp-image-1885\" src=\"https:\/\/fis.rub.de\/wp-interface\/wp-content\/uploads\/2023\/02\/Daten_click.jpg\" alt=\"\" width=\"131\" height=\"36\"> in the interactive map to display details about the satellite data.<\/li>\n<li>This button<img class=\"alignnone  wp-image-1884\" src=\"https:\/\/fis.rub.de\/wp-interface\/wp-content\/uploads\/2023\/02\/Bander_click-e1709545636194.jpg\" alt=\"\" width=\"161\" height=\"41\"> displays an image of the dataset on the map (there is only one image in this dataset).<\/li>\n<li>You can also use it to hide and show the image again, which is indicated by this icon:<img class=\"alignnone size-full wp-image-1888\" src=\"https:\/\/fis.rub.de\/wp-interface\/wp-content\/uploads\/2023\/02\/eyevis_click.jpg\" alt=\"\" width=\"26\" height=\"24\"><img class=\"alignnone size-full wp-image-1887\" src=\"https:\/\/fis.rub.de\/wp-interface\/wp-content\/uploads\/2023\/02\/eye_click.jpg\" alt=\"\" width=\"27\" height=\"24\">&nbsp;<\/li>\n<li>If you activate this button <img class=\"alignnone  wp-image-1910\" src=\"https:\/\/fis.rub.de\/wp-interface\/wp-content\/uploads\/2023\/02\/Pipette_click.jpg\" alt=\"\" width=\"36\" height=\"24\"> at the bottom of the image, you can read the reflection strength of the pixels. The higher the number (0-255), the stronger the reflection. A click on the image deactivates the mode.<\/li>\n<\/ol>\n<div class=\"flex-shrink-0 flex flex-col relative items-end\">\n<div>\n<div class=\"pt-0\">\n<div class=\"gizmo-bot-avatar flex h-8 w-8 items-center justify-center overflow-hidden rounded-full\">\n<div class=\"relative p-1 rounded-sm flex items-center justify-center bg-token-main-surface-primary text-token-text-primary h-8 w-8\">&nbsp;<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"group\/conversation-turn relative flex w-full min-w-0 flex-col agent-turn\">\n<div class=\"flex-col gap-1 md:gap-3\">\n<div class=\"flex flex-grow flex-col max-w-full\">\n<div class=\"min-h-[20px] text-message flex w-full flex-col items-end gap-2 whitespace-pre-wrap break-words [.text-message+&amp;]:mt-5 overflow-x-auto\" dir=\"auto\" data-message-author-role=\"assistant\" data-message-id=\"ecb93abf-2919-4339-9567-ec1e0d23645e\">\n<div class=\"flex w-full flex-col gap-1 empty:hidden first:pt-[3px]\">\n<div class=\"markdown prose w-full break-words dark:prose-invert light\">\n<p>The tools you can use to edit the image are accessed by clicking on \"Tools\"<span style=\"color: #ff0000;\">(1)<\/span><span style=\"font-size: revert;\"> auf. The help button <\/span><span style=\"color: #ff0000;\">(2)<\/span><span style=\"font-size: revert;\"> shows a short video explaining how to use the tool<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><img class=\"wp-image-1886 aligncenter\" src=\"https:\/\/fis.rub.de\/wp-interface\/wp-content\/uploads\/2023\/02\/Tools_click-300x222.jpg\" alt=\"\" width=\"402\" height=\"297\"><\/p>\n<h5>&nbsp;<\/h5>\n<h5>3. What exactly does the tool do?<\/h5>\n<p>The tool marks pixels in the radar image that look similar, meaning they have similar reflection properties.<\/p>\n<p>You activate the button <img class=\"alignnone  wp-image-1901\" src=\"https:\/\/fis.rub.de\/wp-interface\/wp-content\/uploads\/2023\/02\/Pixel_click.jpg\" alt=\"\" width=\"142\" height=\"25\">&nbsp; and then click on a pixel in the satellite image. The tool will now mark all other pixels in the satellite image that are similar, meaning they have similar reflection properties. You can adjust how similar they need to be using the \"Adjust Tolerance\" slider. <img class=\"alignnone  wp-image-1902\" src=\"https:\/\/fis.rub.de\/wp-interface\/wp-content\/uploads\/2023\/02\/adjusl_click.jpg\" alt=\"\" width=\"133\" height=\"37\">&nbsp;<\/p>\n<ul>\n<li><strong>0 means:<\/strong> Zero tolerance! Only pixels that have exactly the same value (reflection) as the pixel selected in the image will be marked.<\/li>\n<li><strong>100 means:<\/strong> Very tolerant! Pixels will be marked that fall within a value range of \u00b1100 around the selected pixel.<\/li>\n<\/ul>\n<p>After a short calculation time, the tool displays the area of the marked region in square meters in the satellite image.<\/p>\n","innerContent":["\n<h4><strong>Operating Instructions:<\/strong><\/h4>\n<p><\/p>\n<h5>1. Display&nbsp; the interactive map:<\/h5>\n<p>Simply click on <strong><img class=\"alignnone  wp-image-1883\" src=\"https:\/\/fis.rub.de\/wp-interface\/wp-content\/uploads\/2023\/02\/Karte_einblenden-e1709544858392.jpg\" alt=\"\" width=\"156\" height=\"25\"><\/strong>to switch to the interactive map and work with the satellite data. Mit einem Klick auf <img class=\"alignnone  wp-image-1882\" src=\"https:\/\/fis.rub.de\/wp-interface\/wp-content\/uploads\/2023\/02\/Inhalte_einblenden.jpg\" alt=\"\" width=\"187\" height=\"30\">, you can return here!<\/p>\n<p><\/p>\n<h5>2. Working on the Interactive Map:<\/h5>\n<ol>\n<li>Click on the icon:<img class=\"alignnone  wp-image-1885\" src=\"https:\/\/fis.rub.de\/wp-interface\/wp-content\/uploads\/2023\/02\/Daten_click.jpg\" alt=\"\" width=\"131\" height=\"36\"> in the interactive map to display details about the satellite data.<\/li>\n<li>This button<img class=\"alignnone  wp-image-1884\" src=\"https:\/\/fis.rub.de\/wp-interface\/wp-content\/uploads\/2023\/02\/Bander_click-e1709545636194.jpg\" alt=\"\" width=\"161\" height=\"41\"> displays an image of the dataset on the map (there is only one image in this dataset).<\/li>\n<li>You can also use it to hide and show the image again, which is indicated by this icon:<img class=\"alignnone size-full wp-image-1888\" src=\"https:\/\/fis.rub.de\/wp-interface\/wp-content\/uploads\/2023\/02\/eyevis_click.jpg\" alt=\"\" width=\"26\" height=\"24\"><img class=\"alignnone size-full wp-image-1887\" src=\"https:\/\/fis.rub.de\/wp-interface\/wp-content\/uploads\/2023\/02\/eye_click.jpg\" alt=\"\" width=\"27\" height=\"24\">&nbsp;<\/li>\n<li>If you activate this button <img class=\"alignnone  wp-image-1910\" src=\"https:\/\/fis.rub.de\/wp-interface\/wp-content\/uploads\/2023\/02\/Pipette_click.jpg\" alt=\"\" width=\"36\" height=\"24\"> at the bottom of the image, you can read the reflection strength of the pixels. The higher the number (0-255), the stronger the reflection. A click on the image deactivates the mode.<\/li>\n<\/ol>\n<div class=\"flex-shrink-0 flex flex-col relative items-end\">\n<div>\n<div class=\"pt-0\">\n<div class=\"gizmo-bot-avatar flex h-8 w-8 items-center justify-center overflow-hidden rounded-full\">\n<div class=\"relative p-1 rounded-sm flex items-center justify-center bg-token-main-surface-primary text-token-text-primary h-8 w-8\">&nbsp;<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"group\/conversation-turn relative flex w-full min-w-0 flex-col agent-turn\">\n<div class=\"flex-col gap-1 md:gap-3\">\n<div class=\"flex flex-grow flex-col max-w-full\">\n<div class=\"min-h-[20px] text-message flex w-full flex-col items-end gap-2 whitespace-pre-wrap break-words [.text-message+&amp;]:mt-5 overflow-x-auto\" dir=\"auto\" data-message-author-role=\"assistant\" data-message-id=\"ecb93abf-2919-4339-9567-ec1e0d23645e\">\n<div class=\"flex w-full flex-col gap-1 empty:hidden first:pt-[3px]\">\n<div class=\"markdown prose w-full break-words dark:prose-invert light\">\n<p>The tools you can use to edit the image are accessed by clicking on \"Tools\"<span style=\"color: #ff0000;\">(1)<\/span><span style=\"font-size: revert;\"> auf. The help button <\/span><span style=\"color: #ff0000;\">(2)<\/span><span style=\"font-size: revert;\"> shows a short video explaining how to use the tool<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><img class=\"wp-image-1886 aligncenter\" src=\"https:\/\/fis.rub.de\/wp-interface\/wp-content\/uploads\/2023\/02\/Tools_click-300x222.jpg\" alt=\"\" width=\"402\" height=\"297\"><\/p>\n<h5>&nbsp;<\/h5>\n<h5>3. What exactly does the tool do?<\/h5>\n<p>The tool marks pixels in the radar image that look similar, meaning they have similar reflection properties.<\/p>\n<p>You activate the button <img class=\"alignnone  wp-image-1901\" src=\"https:\/\/fis.rub.de\/wp-interface\/wp-content\/uploads\/2023\/02\/Pixel_click.jpg\" alt=\"\" width=\"142\" height=\"25\">&nbsp; and then click on a pixel in the satellite image. The tool will now mark all other pixels in the satellite image that are similar, meaning they have similar reflection properties. You can adjust how similar they need to be using the \"Adjust Tolerance\" slider. <img class=\"alignnone  wp-image-1902\" src=\"https:\/\/fis.rub.de\/wp-interface\/wp-content\/uploads\/2023\/02\/adjusl_click.jpg\" alt=\"\" width=\"133\" height=\"37\">&nbsp;<\/p>\n<ul>\n<li><strong>0 means:<\/strong> Zero tolerance! Only pixels that have exactly the same value (reflection) as the pixel selected in the image will be marked.<\/li>\n<li><strong>100 means:<\/strong> Very tolerant! Pixels will be marked that fall within a value range of \u00b1100 around the selected pixel.<\/li>\n<\/ul>\n<p>After a short calculation time, the tool displays the area of the marked region in square meters in the satellite image.<\/p>\n"]},{"blockName":"create-block\/eo-data-upload-and-config-block","attrs":{"title":"Palamas Sentinel-1","threshold":false,"simValues":true,"simValues_tut_url":"https:\/\/fis.rub.de\/wp-interface\/wp-content\/uploads\/2023\/02\/SimValuesTut.mp4","imgenhance":false,"sensor":"Sentinel 3","selectedBands":["Band 1"],"valuetrans1":"0","valuetrans2":"0","helligkeit":"4","kontrast":"0.8"},"innerBlocks":[{"blockName":"core\/file","attrs":{"id":1890,"href":"https:\/\/fis.rub.de\/wp-interface\/wp-content\/uploads\/2023\/02\/subset_Sentinel-1GRD_IW_VV_DB_2023-09-13_Palamas_no0_uint.tif"},"innerBlocks":[],"innerHTML":"\n<div class=\"wp-block-file\"><a href=\"https:\/\/fis.rub.de\/wp-interface\/wp-content\/uploads\/2023\/02\/subset_Sentinel-1GRD_IW_VV_DB_2023-09-13_Palamas_no0_uint.tif\">subset_Sentinel-1GRD_IW_VV_DB_2023-09-13_Palamas_no0_uint<\/a><a href=\"https:\/\/fis.rub.de\/wp-interface\/wp-content\/uploads\/2023\/02\/subset_Sentinel-1GRD_IW_VV_DB_2023-09-13_Palamas_no0_uint.tif\" class=\"wp-block-file__button\" download>Download<\/a><\/div>\n","innerContent":["\n<div class=\"wp-block-file\"><a href=\"https:\/\/fis.rub.de\/wp-interface\/wp-content\/uploads\/2023\/02\/subset_Sentinel-1GRD_IW_VV_DB_2023-09-13_Palamas_no0_uint.tif\">subset_Sentinel-1GRD_IW_VV_DB_2023-09-13_Palamas_no0_uint<\/a><a href=\"https:\/\/fis.rub.de\/wp-interface\/wp-content\/uploads\/2023\/02\/subset_Sentinel-1GRD_IW_VV_DB_2023-09-13_Palamas_no0_uint.tif\" class=\"wp-block-file__button\" download>Download<\/a><\/div>\n"]}],"innerHTML":"\n\n","innerContent":["\n",null,"\n"]},{"blockName":"create-block\/eotools","attrs":{"pipette":true,"speccurve":false},"innerBlocks":[],"innerHTML":"\n<p class=\"wp-block-create-block-eotools\">Eotools \u2013 hello from the saved content!<\/p>\n","innerContent":["\n<p class=\"wp-block-create-block-eotools\">Eotools \u2013 hello from the saved content!<\/p>\n"]},{"blockName":"create-block\/downloads","attrs":[],"innerBlocks":[{"blockName":"core\/file","attrs":{"id":2006,"href":"https:\/\/fis.rub.de\/wp-interface\/wp-content\/uploads\/2024\/07\/Reflection-in-focus_Material.zip"},"innerBlocks":[],"innerHTML":"\n<div class=\"wp-block-file\"><a href=\"https:\/\/fis.rub.de\/wp-interface\/wp-content\/uploads\/2024\/07\/Reflection-in-focus_Material.zip\">Reflection in focus_Material<\/a><a href=\"https:\/\/fis.rub.de\/wp-interface\/wp-content\/uploads\/2024\/07\/Reflection-in-focus_Material.zip\" class=\"wp-block-file__button\" download>Download<\/a><\/div>\n","innerContent":["\n<div class=\"wp-block-file\"><a href=\"https:\/\/fis.rub.de\/wp-interface\/wp-content\/uploads\/2024\/07\/Reflection-in-focus_Material.zip\">Reflection in focus_Material<\/a><a href=\"https:\/\/fis.rub.de\/wp-interface\/wp-content\/uploads\/2024\/07\/Reflection-in-focus_Material.zip\" class=\"wp-block-file__button\" download>Download<\/a><\/div>\n"]}],"innerHTML":"\n\n","innerContent":["\n",null,"\n"]}],"innerHTML":"\n<div class=\"wp-block-group\">\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n<\/div>\n","innerContent":["\n<div class=\"wp-block-group\">",null,"\n\n",null,"\n\n",null,"\n\n",null,"\n\n",null,"\n\n",null,"\n\n",null,"\n\n",null,"\n\n",null,"<\/div>\n"]}],"_links":{"self":[{"href":"https:\/\/fis.rub.de\/wp-interface\/wp-json\/wp\/v2\/posts\/1997"}],"collection":[{"href":"https:\/\/fis.rub.de\/wp-interface\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fis.rub.de\/wp-interface\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fis.rub.de\/wp-interface\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/fis.rub.de\/wp-interface\/wp-json\/wp\/v2\/comments?post=1997"}],"version-history":[{"count":8,"href":"https:\/\/fis.rub.de\/wp-interface\/wp-json\/wp\/v2\/posts\/1997\/revisions"}],"predecessor-version":[{"id":2007,"href":"https:\/\/fis.rub.de\/wp-interface\/wp-json\/wp\/v2\/posts\/1997\/revisions\/2007"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/fis.rub.de\/wp-interface\/wp-json\/wp\/v2\/media\/2003"}],"wp:attachment":[{"href":"https:\/\/fis.rub.de\/wp-interface\/wp-json\/wp\/v2\/media?parent=1997"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fis.rub.de\/wp-interface\/wp-json\/wp\/v2\/categories?post=1997"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fis.rub.de\/wp-interface\/wp-json\/wp\/v2\/tags?post=1997"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}