{"id":508468,"date":"2026-08-15T03:35:46","date_gmt":"2026-08-14T17:35:46","guid":{"rendered":"https:\/\/science.nasa.gov\/get-involved\/citizen-science\/volunteer-develops-machine-learning-tool-to-identify-rare-clouds\/"},"modified":"2026-08-15T03:35:46","modified_gmt":"2026-08-14T17:35:46","slug":"volunteer-develops-machine-learning-tool-to-identify-rare-clouds","status":"publish","type":"post","link":"https:\/\/www.vibewire.com.au\/?p=508468","title":{"rendered":"Volunteer Develops Machine-Learning Tool to Identify Rare Clouds"},"content":{"rendered":"<div id=\"\" class=\"hds-module hds-module-full alignfull wp-block-nasa-blocks-secondary-navigation\">\n<div class=\"hds-secondary-navigation-wrapper z-top width-100 padding-0\">\n<div id=\"\" class=\"hds-secondary-navigation width-full border-bottom-1px text-center hds-color-mode-light hds-module hds-module-full alignfull wp-block-nasa-blocks-hdsnav\"><button type=\"button\" class=\"hds-secondary-nav-mobile-button display-flex tablet:display-flex desktop:display-none width-full flex-align-center bg-carbon-90 border-color-carbon-80 color-spacesuit-white\" aria-expanded=\"false\" aria-controls=\"hds-secondary-nav-track\"><span>Explore This Section<\/span><svg width=\"16\" height=\"16\" alt=\"\" enable-background=\"new 0 0 400 400\" viewBox=\"0 0 400 400\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"m4.2 122.2 195.1 195.1 196.5-196.6-37.9-38-157.8 157.8-156.8-156.8z\" \/><\/svg><\/button><\/p>\n<div class=\"hds-secondary-nav-track grid-container grid-container-extrawide padding-0 tablet:padding-x-3 desktop:padding-x-2 hds-secondary-navigation-has-breadcrumbs\">\n<div class=\"hds-secondary-navigation-breadcrumbs display-none tablet:display-none desktop:display-flex flex-align-center\">\n<nav class=\"usa-breadcrumb\" aria-label=\"Breadcrumbs\">\n<ol class=\"usa-breadcrumb__list\">\n<li class=\"usa-breadcrumb__list-item\"><a href=\"https:\/\/science.nasa.gov\/\" class=\"usa-breadcrumb__link\" rel=\"noopener\"><span>Science<\/span><\/a><\/li>\n<li class=\"usa-breadcrumb__list-item\"><a href=\"https:\/\/science.nasa.gov\/citizen-science\/\" class=\"usa-breadcrumb__link\" rel=\"noopener\"><span>Citizen Science<\/span><\/a><\/li>\n<li class=\"usa-breadcrumb__list-item usa-current\" aria-current=\"page\"><span>Volunteer Develops\u2026<\/span><\/li>\n<\/ol>\n<\/nav>\n<\/div>\n<div class=\"hds-secondary-navigation-menu-items\">\n<nav>\n<ul class=\"usa-nav__primary usa-accordion flex-justify-center margin-0\">\n<li class=\"usa-nav__primary-item \"><a class=\"usa-nav__link\" href=\"https:\/\/science.nasa.gov\/learn\" rel=\"noopener\">Overview<\/a><\/li>\n<li class=\"usa-nav__primary-item \"><a class=\"usa-nav__link\" href=\"https:\/\/science.nasa.gov\/learn\/resources\" rel=\"noopener\">Resources<\/a><\/li>\n<li class=\"usa-nav__primary-item \"><a class=\"usa-nav__link\" href=\"https:\/\/science.nasa.gov\/learn\/learner-opportunities\/\" rel=\"noopener\">Opportunities<\/a><\/li>\n<li class=\"usa-nav__primary-item \"><a class=\"usa-nav__link\" href=\"https:\/\/science.nasa.gov\/citizen-science\/\" rel=\"noopener\">Citizen Science<\/a><\/li>\n<li class=\"usa-nav__primary-item \"><a class=\"usa-nav__link\" href=\"https:\/\/science.nasa.gov\/learn\/science-activation-highlights\" rel=\"noopener\">Highlights<\/a><\/li>\n<li class=\"usa-nav__primary-item \"><a class=\"usa-nav__link\" href=\"https:\/\/science.nasa.gov\/learn\/about-science-activation\/\" rel=\"noopener\">About Science Activation<\/a><\/li>\n<\/ul>\n<\/nav>\n<\/div>\n<div class=\"hds-secondary-navigation-menu-spacer\">\u00a0<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p class=\"wp-block-paragraph\">Certain kinds of clouds are misbehaving \u2013 appearing more often and lower in the sky than they used to. To help identify the factors influencing these changes (e.g. shifts in Earth\u2019s long-term weather patterns), scientists have asked people around the world with cameras to submit fresh images of these clouds as a part of the NASA-supported Space Cloud Watch project. Now, one volunteer has developed a new tool to help other Space Cloud Watch volunteers work more efficiently.\u00a0<\/p>\n<p class=\"wp-block-paragraph\">The misbehaving clouds are \u201cnoctilucent\u201d\u00a0 or \u201cnight-shining\u201d clouds (NLCs). These clouds scatter light from the Sun long after sunset and long before sunrise, giving them a silvery glow. But despite this glow, it can be hard to differentiate NLCs from lower-altitude look-alikes. That confusion has meant extra work for project leaders.<\/p>\n<p class=\"wp-block-paragraph\">Volunteer Namai Chandra shared, \u201cI noticed that NLC images were being manually verified by the project leaders. It felt like a task well-suited for a human-in-the-loop machine learning pipeline, one that could handle the repetitive screening automatically, while keeping human judgment central for the images that matter most.\u201d In other words, Namai found a way to help observers verify when they are indeed seeing NLCs and when they\u2019re not.\u00a0<\/p>\n<p class=\"wp-block-paragraph\">Namai reached out to the Space Cloud Watch scientists Drs. Chihoko Cullens and Brentha Thurairajah, who were delighted with his idea. Namai soon developed a machine learning pipeline, training it on a variety of cloud images, including both the NLCs and the lower altitude look-alikes that are often submitted to Space Cloud Watch. The pipeline combines image pre-screening, cloud classification, and confidence-based review routing. After several rounds of development, testing, and refinement, he released his NLC identification tool to the project. This tool is now being used by cloud contributors who are unsure whether they have observed NLCs, as well as project scientists that want to flag images for review.\u00a0<\/p>\n<p class=\"wp-block-paragraph\">Grab a camera and join the Space Cloud Watch project today! If you\u2019ve hesitated to contribute to Space Cloud Watch because you were not certain if what you were seeing was a noctilucent cloud, you now have a way to check before you share \u2013 thanks to Namai.<\/p>\n<div id=\"\" class=\"hds-media hds-module wp-block-image\">\n<div class=\"margin-left-auto margin-right-auto nasa-block-align-inline\">\n<div class=\"hds-media-wrapper margin-left-auto margin-right-auto\">\n<figure class=\"hds-media-inner hds-cover-wrapper hds-media-ratio-contain-16x9 \" style=\"--hds-image-contain-bg:#000000;\"><a href=\"https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/cds\/citizen-science\/highlights\/2026\/Noctilucent_Cloud_Detector_CitSci.jpg?w=1230&#038;h=2048&#038;%23038;fit=clip&#038;%23038;crop=faces%2Cfocalpoint\" rel=\"noopener\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1230\" height=\"2048\" src=\"https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/cds\/citizen-science\/highlights\/2026\/Noctilucent_Cloud_Detector_CitSci.jpg?w=1230&#038;h=2048&#038;%23038;fit=clip&#038;%23038;crop=faces%2Cfocalpoint\" class=\"attachment-2048x2048 size-2048x2048\" alt=\"Portrait of a smiling person with dark hair sitting indoors..\" style=\"transform: scale(1); transform-origin: 50% 50%; object-position: 50% 50%; object-fit: contain;\" block_context=\"nasa-block\" loading=\"eager\" srcset=\"https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/cds\/citizen-science\/highlights\/2026\/Noctilucent_Cloud_Detector_CitSci.jpg?w=1230&#038;h=2048&#038;fit=crop&#038;crop=faces%2Cfocalpoint 1230w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/cds\/citizen-science\/highlights\/2026\/Noctilucent_Cloud_Detector_CitSci.jpg?w=180&#038;h=300&#038;fit=crop&#038;crop=faces%2Cfocalpoint 180w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/cds\/citizen-science\/highlights\/2026\/Noctilucent_Cloud_Detector_CitSci.jpg?w=768&#038;h=1279&#038;fit=crop&#038;crop=faces%2Cfocalpoint 768w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/cds\/citizen-science\/highlights\/2026\/Noctilucent_Cloud_Detector_CitSci.jpg?w=615&#038;h=1024&#038;fit=crop&#038;crop=faces%2Cfocalpoint 615w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/cds\/citizen-science\/highlights\/2026\/Noctilucent_Cloud_Detector_CitSci.jpg?w=923&#038;h=1537&#038;fit=crop&#038;crop=faces%2Cfocalpoint 923w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/cds\/citizen-science\/highlights\/2026\/Noctilucent_Cloud_Detector_CitSci.jpg?w=240&#038;h=400&#038;fit=crop&#038;crop=faces%2Cfocalpoint 240w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/cds\/citizen-science\/highlights\/2026\/Noctilucent_Cloud_Detector_CitSci.jpg?w=360&#038;h=599&#038;fit=crop&#038;crop=faces%2Cfocalpoint 360w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/cds\/citizen-science\/highlights\/2026\/Noctilucent_Cloud_Detector_CitSci.jpg?w=541&#038;h=901&#038;fit=crop&#038;crop=faces%2Cfocalpoint 541w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/cds\/citizen-science\/highlights\/2026\/Noctilucent_Cloud_Detector_CitSci.jpg?w=721&#038;h=1200&#038;fit=crop&#038;crop=faces%2Cfocalpoint 721w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/cds\/citizen-science\/highlights\/2026\/Noctilucent_Cloud_Detector_CitSci.jpg?w=1201&#038;h=2000&#038;fit=crop&#038;crop=faces%2Cfocalpoint 1201w\" sizes=\"auto, (max-width: 1230px) 100vw, 1230px\" \/><\/a><\/figure><figcaption class=\"hds-caption padding-y-2\">\n<div class=\"hds-caption-text p-sm margin-0\">Namai Chandra, Space Cloud Watch volunteer and creator of the Noctilucent Cloud Detector tool.<\/div>\n<div class=\"hds-credits\">Photo by Surabhi Chandra.<\/div>\n<\/figcaption><\/div>\n<\/div>\n<\/div>\n<div id=\"\" class=\"hds-featured-link-list bg-spacesuit-white padding-x-2 tablet:padding-x-3 desktop:padding-x-4 padding-y-5 desktop:padding-y-6 hds-module hds-module-full alignfull wp-block-nasa-blocks-featured-link-list\">\n<div class=\"grid-container grid-container-block padding-0\">\n<div class=\"margin-bottom-4\">\n<h2 class=\"heading-22\">\n\t\t\t\tLearn More and Get Involved\t\t\t<\/h2>\n<\/p>\n<\/div>\n<div class=\"grid-row padding-y-2 border-top-1px border-color-carbon-30-important\">\n<div class=\"grid-row featured-link-list-row width-full flex-align-center\">\n<div class=\"grid-col-2 desktop:grid-col-1 tablet:padding-right-3 desktop:padding-right-5\">\n<div class=\"width-full\">\n<div class=\"hds-cover-wrapper width-full ratio-1x1 radius-pill overflow-hidden\">\n<figure class=\"hds-media-background  \"><img decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/cds\/citizen-science\/projects\/space-cloud-watch-logo.jpg?w=500&#038;h=500&#038;%23038;fit=clip&#038;%23038;crop=faces%2Cfocalpoint\" class=\"attachment-thumbnail size-thumbnail\" alt=\"A pre-dawn or early evening scene. Two figures kneel, one on each side, pointing cameras up at the sky, which is filled with wave-like noctilucent clouds shining bright against a dark blue sky. Framing the sky from below is a dark of silhouetted trees, and above, the text \"Space Cloud Watch Noctilucent Clouds.\"\" style=\"transform: scale(2); transform-origin: 98% 95%; object-position: 98% 95%; object-fit: cover;\" block_context=\"nasa-block\" loading=\"lazy\" srcset=\"https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/cds\/citizen-science\/projects\/space-cloud-watch-logo.jpg?w=500&#038;h=500&#038;fit=crop&#038;crop=faces%2Cfocalpoint 500w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/cds\/citizen-science\/projects\/space-cloud-watch-logo.jpg?w=150&#038;h=150&#038;fit=crop&#038;crop=faces%2Cfocalpoint 150w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/cds\/citizen-science\/projects\/space-cloud-watch-logo.jpg?w=300&#038;h=300&#038;fit=crop&#038;crop=faces%2Cfocalpoint 300w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/cds\/citizen-science\/projects\/space-cloud-watch-logo.jpg?w=50&#038;h=50&#038;fit=crop&#038;crop=faces%2Cfocalpoint 50w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/cds\/citizen-science\/projects\/space-cloud-watch-logo.jpg?w=100&#038;h=100&#038;fit=crop&#038;crop=faces%2Cfocalpoint 100w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/cds\/citizen-science\/projects\/space-cloud-watch-logo.jpg?w=200&#038;h=200&#038;fit=crop&#038;crop=faces%2Cfocalpoint 200w, https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/cds\/citizen-science\/projects\/space-cloud-watch-logo.jpg?w=400&#038;h=400&#038;fit=crop&#038;crop=faces%2Cfocalpoint 400w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/figure>\n<\/p>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"grid-col-8 desktop:grid-col-10 padding-left-3 desktop:padding-left-0\">\n<div class=\"grid-row flex-align-center\">\n<div class=\"grid-col-12 desktop:grid-col-6\">\n<h2 class=\"heading-36 margin-0\">Space Cloud Watch<\/h2>\n<\/p>\n<\/div>\n<div class=\"grid-col-12 desktop:grid-col-6\">\n<p class=\"p-md margin-0 color-carbon-black\">Photograph clouds just after sunset or before dawn to investigate our changing atmosphere. <\/p>\n<\/p>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"grid-col-2 desktop:grid-col-1 display-flex flex-justify-end\">\n\t\t\t\t\t\t<a href=\"https:\/\/science.nasa.gov\/citizen-science\/space-cloud-watch\/\"  aria-label=\"Space Cloud Watch\" class=\"link-external-false\" rel=\"noopener\"><br \/>\n                            <svg class=\"hds-featured-link-list-button margin-left-auto margin-right-0\" viewBox=\"0 0 32 32\" fill=\"none\">\n                                <circle class=\"color-nasa-red\" cx=\"16\" cy=\"16\" r=\"16\"><\/circle><path d=\"M8 16.956h12.604l-3.844 4.106 1.252 1.338L24 16l-5.988-6.4-1.252 1.338 3.844 4.106H8v1.912z\" class=\"color-spacesuit-white\"><\/path>\n        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To help identify the factors influencing these changes, scientists have asked people around the world with cameras to submit fresh images of these clouds as a part of the NASA-supported Space Cloud Watch project.<\/p>\n","protected":false},"author":13,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"footnotes":""},"categories":[15715,15600,15690],"tags":[],"class_list":["post-508468","post","type-post","status-publish","format-standard","hentry","category-citizen-science","category-earth-science","category-earth-science-division"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO Pro 5.0.0.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"Certain kinds of clouds are misbehaving \u2013 appearing more often and lower in the sky than they used to. 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