{"id":2900,"date":"2025-07-06T00:28:59","date_gmt":"2025-07-06T00:28:59","guid":{"rendered":"https:\/\/science.gsfc.nasa.gov\/stella\/?page_id=2900"},"modified":"2025-07-07T12:29:34","modified_gmt":"2025-07-07T12:29:34","slug":"field-studies","status":"publish","type":"page","link":"https:\/\/science.gsfc.nasa.gov\/stella\/engagement\/field-studies\/","title":{"rendered":"Field Studies"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"2900\" class=\"elementor elementor-2900\">\n\t\t\t\t<div class=\"elementor-element elementor-element-b380f69 e-flex e-con-boxed e-con e-parent\" data-id=\"b380f69\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-12cb6bc elementor-widget elementor-widget-heading\" data-id=\"12cb6bc\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Field Studies\u200b<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-0d9e156 e-flex e-con-boxed e-con e-parent\" data-id=\"0d9e156\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6aba694 elementor-widget elementor-widget-text-editor\" data-id=\"6aba694\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Field studies with STELLA instruments offer a unique and accessible way to analyze our environment. These low-cost, handheld tools allow for real-world data collection on a range of subjects, from plant health to air quality. By comparing STELLA measurements to those from established tools or controlled environments, researchers and students can gain valuable insights into the instrument&#8217;s capabilities and its effectiveness in various field applications. This approach not only fosters a deeper understanding of remote sensing principles but also opens doors for citizen science initiatives and broader environmental monitoring efforts. Let&#8217;s delve into some case studies to see how STELLA instruments are being used in the field.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-d7f2009 e-con-full e-flex e-con e-child\" data-id=\"d7f2009\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-99bc668 e-n-tabs-mobile elementor-widget elementor-widget-n-tabs\" data-id=\"99bc668\" data-element_type=\"widget\" data-settings=\"{&quot;tabs_justify_horizontal&quot;:&quot;center&quot;,&quot;horizontal_scroll&quot;:&quot;disable&quot;}\" data-widget_type=\"nested-tabs.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"e-n-tabs\" data-widget-number=\"161203816\" aria-label=\"Tabs. Open items with Enter or Space, close with Escape and navigate using the Arrow keys.\">\n\t\t\t<div class=\"e-n-tabs-heading\" role=\"tablist\">\n\t\t\t\t\t<button id=\"e-n-tab-title-1612038161\" class=\"e-n-tab-title\" aria-selected=\"true\" data-tab-index=\"1\" role=\"tab\" tabindex=\"0\" aria-controls=\"e-n-tab-content-1612038161\" style=\"--n-tabs-title-order: 1;\">\n\t\t\t\t\t\t<span class=\"e-n-tab-title-text\">\n\t\t\t\tField Studies List\t\t\t<\/span>\n\t\t<\/button>\n\t\t\t\t<button id=\"e-n-tab-title-1612038162\" class=\"e-n-tab-title\" aria-selected=\"false\" data-tab-index=\"2\" role=\"tab\" tabindex=\"-1\" aria-controls=\"e-n-tab-content-1612038162\" style=\"--n-tabs-title-order: 2;\">\n\t\t\t\t\t\t<span class=\"e-n-tab-title-text\">\n\t\t\t\tField Studies Timeline\t\t\t<\/span>\n\t\t<\/button>\n\t\t\t\t\t<\/div>\n\t\t\t<div class=\"e-n-tabs-content\">\n\t\t\t\t<div id=\"e-n-tab-content-1612038161\" role=\"tabpanel\" aria-labelledby=\"e-n-tab-title-1612038161\" data-tab-index=\"1\" style=\"--n-tabs-title-order: 1;\" class=\"e-active elementor-element elementor-element-bd4e045 e-con-full e-flex e-con e-child\" data-id=\"bd4e045\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-a3eb730 elementor-grid-eael-col-2 elementor-widget__width-inherit elementor-grid-tablet-eael-col-2 elementor-grid-mobile-eael-col-1 elementor-widget elementor-widget-eael-post-grid\" data-id=\"a3eb730\" data-element_type=\"widget\" data-settings=\"{&quot;eael_post_grid_columns&quot;:&quot;eael-col-2&quot;,&quot;eael_post_grid_columns_tablet&quot;:&quot;eael-col-2&quot;,&quot;eael_post_grid_columns_mobile&quot;:&quot;eael-col-1&quot;}\" data-widget_type=\"eael-post-grid.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div id=\"eael-post-grid-a3eb730\" class=\"eael-post-grid-container\">\n            <div class=\"eael-post-grid eael-post-appender eael-post-appender-a3eb730 eael-post-grid-style-two\" data-layout-mode=\"grid\"><article class=\"eael-grid-post eael-post-grid-column\" data-id=\"3457\">\n    <div class=\"eael-grid-post-holder\">\n        <div class=\"eael-grid-post-holder-inner\"><div class=\"eael-entry-media\"><div class=\"eael-entry-overlay none\"><i class=\"fas fa-exchange-alt\" aria-hidden=\"true\"><\/i><a href=\"https:\/\/science.gsfc.nasa.gov\/stella\/petya-in-the-field\/\"><\/a><\/div><div class=\"eael-entry-thumbnail \">\n                            <img fetchpriority=\"high\" decoding=\"async\" width=\"772\" height=\"747\" src=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/PetyaCampbell.png\" class=\"attachment-full size-full wp-image-1171\" alt=\"Dr. Petya Campbell taking notes during a STELLA field test\" srcset=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/PetyaCampbell.png 772w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/PetyaCampbell-300x290.png 300w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/PetyaCampbell-768x743.png 768w\" sizes=\"(max-width: 772px) 100vw, 772px\" \/>\n                            <\/div>\n                    <\/div><div class=\"eael-entry-wrapper\"><header class=\"eael-entry-header\"><h2 class=\"eael-entry-title\"><a class=\"eael-grid-post-link\" href=\"https:\/\/science.gsfc.nasa.gov\/stella\/petya-in-the-field\/\" title=\"Petya in the Field\">Petya in the Field<\/a><\/h2><\/header><div class=\"eael-entry-header-after style-two\"><div class=\"eael-entry-meta\"><span class=\"eael-posted-on eael-meta-posted-on\"><i class=\"far fa-clock\"><\/i><time datetime=\"October 15, 2025\">October 15, 2025<\/time><\/span><\/div><\/div><div class=\"eael-entry-content\">\n                                <div class=\"eael-grid-post-excerpt\"><p>Watch Dr. Petya Campbell, a NASA Goddard research scientist with over 20 years of field experience, demonstrate how ground-based STELLA spectrometer measurements directly support NASA satellite missions by validating Earth observation data.<\/p><a href=\"https:\/\/science.gsfc.nasa.gov\/stella\/petya-in-the-field\/\" class=\"eael-post-elements-readmore-btn\">Read More<\/a><\/div>\n                            <\/div><\/div><\/div>\n    <\/div>\n<\/article><article class=\"eael-grid-post eael-post-grid-column\" data-id=\"1154\">\n    <div class=\"eael-grid-post-holder\">\n        <div class=\"eael-grid-post-holder-inner\"><div class=\"eael-entry-media\"><div class=\"eael-entry-overlay none\"><i class=\"fas fa-exchange-alt\" aria-hidden=\"true\"><\/i><a href=\"https:\/\/science.gsfc.nasa.gov\/stella\/field-comparison-asd-and-stella-8-22-2023\/\"><\/a><\/div><div class=\"eael-entry-thumbnail \">\n                            <img decoding=\"async\" width=\"2560\" height=\"1526\" src=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2024\/01\/IMG_5201_crop-scaled.png\" class=\"attachment-full size-full wp-image-1157\" alt=\"STELLA and ASD field day\" srcset=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2024\/01\/IMG_5201_crop-scaled.png 2560w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2024\/01\/IMG_5201_crop-300x179.png 300w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2024\/01\/IMG_5201_crop-1024x610.png 1024w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2024\/01\/IMG_5201_crop-768x458.png 768w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2024\/01\/IMG_5201_crop-1536x915.png 1536w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2024\/01\/IMG_5201_crop-2048x1221.png 2048w\" sizes=\"(max-width: 2560px) 100vw, 2560px\" \/>\n                            <\/div>\n                    <\/div><div class=\"eael-entry-wrapper\"><header class=\"eael-entry-header\"><h2 class=\"eael-entry-title\"><a class=\"eael-grid-post-link\" href=\"https:\/\/science.gsfc.nasa.gov\/stella\/field-comparison-asd-and-stella-8-22-2023\/\" title=\"Field Comparison ASD and STELLA 8\/22\/2023\">Field Comparison ASD and STELLA 8\/22\/2023<\/a><\/h2><\/header><div class=\"eael-entry-header-after style-two\"><div class=\"eael-entry-meta\"><span class=\"eael-posted-on eael-meta-posted-on\"><i class=\"far fa-clock\"><\/i><time datetime=\"January 20, 2024\">January 20, 2024<\/time><\/span><\/div><\/div><div class=\"eael-entry-content\">\n                                <div class=\"eael-grid-post-excerpt\"><p>Field Comparison ASD and STELLA 8\/22\/2023 Preliminary Results Created by Dr. Petya Campbell, STELLA Lead Scientist Download STELLA Field Data 8\/22\/2023 XLSX ASD Reflectance Measurements\u200b&hellip;<\/p><a href=\"https:\/\/science.gsfc.nasa.gov\/stella\/field-comparison-asd-and-stella-8-22-2023\/\" class=\"eael-post-elements-readmore-btn\">Read More<\/a><\/div>\n                            <\/div><\/div><\/div>\n    <\/div>\n<\/article><\/div>\n            <div class=\"clearfix\"><\/div>\n        <\/div>            <div class=\"eael-load-more-button-wrap\">\n                <button class=\"eael-load-more-button\" id=\"eael-load-more-btn-a3eb730\" data-widget-id=\"a3eb730\" data-widget=\"a3eb730\" data-page-id=\"2900\" data-template=\"{&quot;dir&quot;:&quot;lite&quot;,&quot;file_name&quot;:&quot;two.php&quot;,&quot;name&quot;:&quot;Post-Grid&quot;}\" data-class=\"Essential_Addons_Elementor\\Elements\\Post_Grid\" data-layout=\"grid\" data-page=\"1\" data-args=\"orderby=date&amp;order=desc&amp;ignore_sticky_posts=0&amp;post_status=publish&amp;posts_per_page=2&amp;offset=0&amp;post_type=post&amp;tax_query%5B0%5D%5Btaxonomy%5D=category&amp;tax_query%5B0%5D%5Bfield%5D=term_id&amp;tax_query%5B0%5D%5Bterms%5D%5B0%5D=73&amp;tax_query%5Brelation%5D=AND\" data-max-page=\"2\">\n                    <span class=\"eael-btn-loader button__loader\"><\/span>\n                    <span class=\"eael_load_more_text\">Load More<\/span>\n                <\/button>\n            <\/div>\n            \t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div id=\"e-n-tab-content-1612038162\" role=\"tabpanel\" aria-labelledby=\"e-n-tab-title-1612038162\" data-tab-index=\"2\" style=\"--n-tabs-title-order: 2;\" class=\" elementor-element elementor-element-15b0121 e-con-full e-flex e-con e-child\" data-id=\"15b0121\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4fb19df elementor-widget elementor-widget-eael-post-timeline\" data-id=\"4fb19df\" data-element_type=\"widget\" data-widget_type=\"eael-post-timeline.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div id=\"eael-post-timeline-4fb19df\" class=\"eael-post-timeline timeline-layout-default eael-post-timeline-arrow-\">\n            <div class=\"eael-post-timeline eael-post-appender eael-post-appender-4fb19df\"><article class=\"eael-timeline-post eael-timeline-column\">\n    <div class=\"eael-timeline-bullet\"><\/div>\n    <div class=\"eael-timeline-post-inner\">\n        <a class=\"eael-timeline-post-link\" href=\"https:\/\/science.gsfc.nasa.gov\/stella\/petya-in-the-field\/\" title=\"Petya in the Field\">\n            <time datetime=\"October 15, 2025\">October 15, 2025<\/time>\n            <div class=\"eael-timeline-post-image  attachment-large size-large\" style=\"background-image: url(https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/PetyaCampbell.png);\"><\/div><div class=\"eael-timeline-post-excerpt\"><p>Watch Dr. Petya Campbell, a NASA Goddard research scientist with over 20 years of field experience, demonstrate how ground-based STELLA spectrometer measurements directly support NASA...<\/p><\/div><div class=\"eael-timeline-post-title\">\n                    <h2 class=\"eael-timeline-post-title-text\">Petya in the Field<\/h2>\n                <\/div><\/a>\n    <\/div>\n<\/article><article class=\"eael-timeline-post eael-timeline-column\">\n    <div class=\"eael-timeline-bullet\"><\/div>\n    <div class=\"eael-timeline-post-inner\">\n        <a class=\"eael-timeline-post-link\" href=\"https:\/\/science.gsfc.nasa.gov\/stella\/field-comparison-asd-and-stella-8-22-2023\/\" title=\"Field Comparison ASD and STELLA 8\/22\/2023\">\n            <time datetime=\"January 20, 2024\">January 20, 2024<\/time>\n            <div class=\"eael-timeline-post-image  attachment-large size-large\" style=\"background-image: url(https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2024\/01\/IMG_5201_crop-1024x610.png);\"><\/div><div class=\"eael-timeline-post-excerpt\"><p>Field Comparison ASD and STELLA 8\/22\/2023 Preliminary Results Created by Dr. Petya Campbell, STELLA Lead Scientist Download STELLA Field Data 8\/22\/2023 XLSX ASD Reflectance Measurements\u200b&hellip;<\/p><\/div><div class=\"eael-timeline-post-title\">\n                    <h2 class=\"eael-timeline-post-title-text\">Field Comparison ASD and STELLA 8\/22\/2023<\/h2>\n                <\/div><\/a>\n    <\/div>\n<\/article><article class=\"eael-timeline-post eael-timeline-column\">\n    <div class=\"eael-timeline-bullet\"><\/div>\n    <div class=\"eael-timeline-post-inner\">\n        <a class=\"eael-timeline-post-link\" href=\"https:\/\/science.gsfc.nasa.gov\/stella\/field-measurements-of-panels-and-grass-collected-at-gsfc-on-december-21-2022\/\" title=\"Field Measurements of Panels and Grass collected at GSFC on December 21, 2022\">\n            <time datetime=\"December 21, 2022\">December 21, 2022<\/time>\n            <div class=\"eael-timeline-post-image  attachment-large size-large\" style=\"background-image: url(https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/IMG_3316-768x1024.png);\"><\/div><div class=\"eael-timeline-post-excerpt\"><p>Field Measurements of Panels and Grass collected at GSFC on December 21, 2022 Preliminary Results Created by Dr. Petya Campbell, STELLA Lead Scientist Download STELLA&hellip;<\/p><\/div><div class=\"eael-timeline-post-title\">\n                    <h2 class=\"eael-timeline-post-title-text\">Field Measurements of Panels and Grass collected at GSFC on December 21, 2022<\/h2>\n                <\/div><\/a>\n    <\/div>\n<\/article><\/div>\n\t\t<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Field Studies\u200b Field studies with STELLA instruments offer a unique and accessible way to analyze our environment. These low-cost, handheld tools allow for real-world data&hellip;<\/p>\n","protected":false},"author":2,"featured_media":1178,"parent":911,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_lmt_disableupdate":"","_lmt_disable":"","footnotes":""},"class_list":["post-2900","page","type-page","status-publish","has-post-thumbnail","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Field Studies - STELLA<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/science.gsfc.nasa.gov\/stella\/engagement\/field-studies\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Field Studies - STELLA\" \/>\n<meta property=\"og:description\" content=\"Field Studies\u200b Field studies with STELLA instruments offer a unique and accessible way to analyze our environment. These low-cost, handheld tools allow for real-world data&hellip;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/science.gsfc.nasa.gov\/stella\/engagement\/field-studies\/\" \/>\n<meta property=\"og:site_name\" content=\"STELLA\" \/>\n<meta property=\"article:modified_time\" content=\"2025-07-07T12:29:34+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/IMG_3316-768x1024.png\" \/>\n\t<meta property=\"og:image:width\" content=\"768\" \/>\n\t<meta property=\"og:image:height\" content=\"1024\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"4 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/science.gsfc.nasa.gov\/stella\/engagement\/field-studies\/\",\"url\":\"https:\/\/science.gsfc.nasa.gov\/stella\/engagement\/field-studies\/\",\"name\":\"Field Studies - STELLA\",\"isPartOf\":{\"@id\":\"https:\/\/science.gsfc.nasa.gov\/stella\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/science.gsfc.nasa.gov\/stella\/engagement\/field-studies\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/science.gsfc.nasa.gov\/stella\/engagement\/field-studies\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/IMG_3316-scaled.png\",\"datePublished\":\"2025-07-06T00:28:59+00:00\",\"dateModified\":\"2025-07-07T12:29:34+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/science.gsfc.nasa.gov\/stella\/engagement\/field-studies\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/science.gsfc.nasa.gov\/stella\/engagement\/field-studies\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/science.gsfc.nasa.gov\/stella\/engagement\/field-studies\/#primaryimage\",\"url\":\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/IMG_3316-scaled.png\",\"contentUrl\":\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/IMG_3316-scaled.png\",\"width\":1920,\"height\":2560,\"caption\":\"Dr. Petya Campbell is taking field notes while Paul Mirel and Jesse Barber are using STELLA spectrometers over a white reference panel for field calibration.\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/science.gsfc.nasa.gov\/stella\/engagement\/field-studies\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/science.gsfc.nasa.gov\/stella\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Engagement\",\"item\":\"https:\/\/science.gsfc.nasa.gov\/stella\/engagement\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Field Studies\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/science.gsfc.nasa.gov\/stella\/#website\",\"url\":\"https:\/\/science.gsfc.nasa.gov\/stella\/\",\"name\":\"STELLA\",\"description\":\"What do you want to measure?\",\"publisher\":{\"@id\":\"https:\/\/science.gsfc.nasa.gov\/stella\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/science.gsfc.nasa.gov\/stella\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/science.gsfc.nasa.gov\/stella\/#organization\",\"name\":\"STELLA\",\"alternateName\":\"Science and Technology Education for Land\/Life Assessment\",\"url\":\"https:\/\/science.gsfc.nasa.gov\/stella\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/science.gsfc.nasa.gov\/stella\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/07\/cropped-BSTELLA_LogoOfficial-scaled-1.png\",\"contentUrl\":\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/07\/cropped-BSTELLA_LogoOfficial-scaled-1.png\",\"width\":512,\"height\":512,\"caption\":\"STELLA\"},\"image\":{\"@id\":\"https:\/\/science.gsfc.nasa.gov\/stella\/#\/schema\/logo\/image\/\"}}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Field Studies - STELLA","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/science.gsfc.nasa.gov\/stella\/engagement\/field-studies\/","og_locale":"en_US","og_type":"article","og_title":"Field Studies - STELLA","og_description":"Field Studies\u200b Field studies with STELLA instruments offer a unique and accessible way to analyze our environment. These low-cost, handheld tools allow for real-world data&hellip;","og_url":"https:\/\/science.gsfc.nasa.gov\/stella\/engagement\/field-studies\/","og_site_name":"STELLA","article_modified_time":"2025-07-07T12:29:34+00:00","og_image":[{"width":768,"height":1024,"url":"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/IMG_3316-768x1024.png","type":"image\/png"}],"twitter_card":"summary_large_image","twitter_misc":{"Est. reading time":"4 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/science.gsfc.nasa.gov\/stella\/engagement\/field-studies\/","url":"https:\/\/science.gsfc.nasa.gov\/stella\/engagement\/field-studies\/","name":"Field Studies - STELLA","isPartOf":{"@id":"https:\/\/science.gsfc.nasa.gov\/stella\/#website"},"primaryImageOfPage":{"@id":"https:\/\/science.gsfc.nasa.gov\/stella\/engagement\/field-studies\/#primaryimage"},"image":{"@id":"https:\/\/science.gsfc.nasa.gov\/stella\/engagement\/field-studies\/#primaryimage"},"thumbnailUrl":"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/IMG_3316-scaled.png","datePublished":"2025-07-06T00:28:59+00:00","dateModified":"2025-07-07T12:29:34+00:00","breadcrumb":{"@id":"https:\/\/science.gsfc.nasa.gov\/stella\/engagement\/field-studies\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/science.gsfc.nasa.gov\/stella\/engagement\/field-studies\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/science.gsfc.nasa.gov\/stella\/engagement\/field-studies\/#primaryimage","url":"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/IMG_3316-scaled.png","contentUrl":"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/IMG_3316-scaled.png","width":1920,"height":2560,"caption":"Dr. Petya Campbell is taking field notes while Paul Mirel and Jesse Barber are using STELLA spectrometers over a white reference panel for field calibration."},{"@type":"BreadcrumbList","@id":"https:\/\/science.gsfc.nasa.gov\/stella\/engagement\/field-studies\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/science.gsfc.nasa.gov\/stella\/"},{"@type":"ListItem","position":2,"name":"Engagement","item":"https:\/\/science.gsfc.nasa.gov\/stella\/engagement\/"},{"@type":"ListItem","position":3,"name":"Field Studies"}]},{"@type":"WebSite","@id":"https:\/\/science.gsfc.nasa.gov\/stella\/#website","url":"https:\/\/science.gsfc.nasa.gov\/stella\/","name":"STELLA","description":"What do you want to measure?","publisher":{"@id":"https:\/\/science.gsfc.nasa.gov\/stella\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/science.gsfc.nasa.gov\/stella\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/science.gsfc.nasa.gov\/stella\/#organization","name":"STELLA","alternateName":"Science and Technology Education for Land\/Life Assessment","url":"https:\/\/science.gsfc.nasa.gov\/stella\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/science.gsfc.nasa.gov\/stella\/#\/schema\/logo\/image\/","url":"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/07\/cropped-BSTELLA_LogoOfficial-scaled-1.png","contentUrl":"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/07\/cropped-BSTELLA_LogoOfficial-scaled-1.png","width":512,"height":512,"caption":"STELLA"},"image":{"@id":"https:\/\/science.gsfc.nasa.gov\/stella\/#\/schema\/logo\/image\/"}}]}},"_links":{"self":[{"href":"https:\/\/science.gsfc.nasa.gov\/stella\/wp-json\/wp\/v2\/pages\/2900","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/science.gsfc.nasa.gov\/stella\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/science.gsfc.nasa.gov\/stella\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/science.gsfc.nasa.gov\/stella\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/science.gsfc.nasa.gov\/stella\/wp-json\/wp\/v2\/comments?post=2900"}],"version-history":[{"count":13,"href":"https:\/\/science.gsfc.nasa.gov\/stella\/wp-json\/wp\/v2\/pages\/2900\/revisions"}],"predecessor-version":[{"id":2940,"href":"https:\/\/science.gsfc.nasa.gov\/stella\/wp-json\/wp\/v2\/pages\/2900\/revisions\/2940"}],"up":[{"embeddable":true,"href":"https:\/\/science.gsfc.nasa.gov\/stella\/wp-json\/wp\/v2\/pages\/911"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/science.gsfc.nasa.gov\/stella\/wp-json\/wp\/v2\/media\/1178"}],"wp:attachment":[{"href":"https:\/\/science.gsfc.nasa.gov\/stella\/wp-json\/wp\/v2\/media?parent=2900"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}