{"id":164,"date":"2025-12-03T10:10:38","date_gmt":"2025-12-03T10:10:38","guid":{"rendered":"https:\/\/traces-anr-fns.imag.fr\/?page_id=164"},"modified":"2025-12-03T16:50:47","modified_gmt":"2025-12-03T16:50:47","slug":"study-areas-and-datasets","status":"publish","type":"page","link":"https:\/\/traces-anr-fns.imag.fr\/index.php\/study-areas-and-datasets\/","title":{"rendered":"Study Areas and Datasets"},"content":{"rendered":"\n<h3 class=\"wp-block-heading has-text-color has-link-color has-medium-font-size wp-elements-b5a52f317cecc6ebf194b134a2d67cbe\" style=\"color:#a51da5\">Study Areas and Datasets<\/h3>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color wp-elements-5439ba24d270b461b3e5698ef2c8a09b\" style=\"color:#0d0de0\">Study Areas<\/h3>\n\n\n\n<p>The TRACES Project focuses on 3 study areas in Switzerland and France<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Fribourg study area (127 Swiss municipalities around and including Fribourg)<\/li>\n\n\n\n<li>Grand Gen\u00e8ve study area (209 Swiss and French municipalities around and including Gen\u00e8ve)<\/li>\n\n\n\n<li>\u00c9vian (45 French municipalities around and including \u00c9vian)<\/li>\n<\/ul>\n\n\n\n<p>for a total number of 317 municipalities (see Figure 1 and Figure 2)<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1011\" height=\"1000\" src=\"https:\/\/traces-anr-fns.imag.fr\/wp-content\/uploads\/2025\/12\/study_areas_1.jpg\" alt=\"\" class=\"wp-image-211\" srcset=\"https:\/\/traces-anr-fns.imag.fr\/wp-content\/uploads\/2025\/12\/study_areas_1.jpg 1011w, https:\/\/traces-anr-fns.imag.fr\/wp-content\/uploads\/2025\/12\/study_areas_1-300x297.jpg 300w, https:\/\/traces-anr-fns.imag.fr\/wp-content\/uploads\/2025\/12\/study_areas_1-768x760.jpg 768w\" sizes=\"auto, (max-width: 1011px) 100vw, 1011px\" \/><figcaption class=\"wp-element-caption\">Screenshot<\/figcaption><\/figure>\n\n\n\n<p>Fgure 1: The 3 TRACES Project study areas.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1004\" height=\"1003\" src=\"https:\/\/traces-anr-fns.imag.fr\/wp-content\/uploads\/2025\/12\/study_areas_2.jpg\" alt=\"\" class=\"wp-image-213\" srcset=\"https:\/\/traces-anr-fns.imag.fr\/wp-content\/uploads\/2025\/12\/study_areas_2.jpg 1004w, https:\/\/traces-anr-fns.imag.fr\/wp-content\/uploads\/2025\/12\/study_areas_2-300x300.jpg 300w, https:\/\/traces-anr-fns.imag.fr\/wp-content\/uploads\/2025\/12\/study_areas_2-150x150.jpg 150w, https:\/\/traces-anr-fns.imag.fr\/wp-content\/uploads\/2025\/12\/study_areas_2-768x767.jpg 768w\" sizes=\"auto, (max-width: 1004px) 100vw, 1004px\" \/><figcaption class=\"wp-element-caption\">Screenshot<\/figcaption><\/figure>\n\n\n\n<p>Figure 2: Demographic Evolution of the 3 study areas.<\/p>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color wp-elements-ca32a62194386fd66a4033dfb19c893d\" style=\"color:#0d0de0\">Datasets and TRACES Environmental Indices (TEIs)<\/h3>\n\n\n\n<p>The TRACES project uses Environmental Indices (we here call TEI for TRACES Environmental Indices) which assess various environmental characteristics for each pixel of a sattelite image. These raw data are available through the <a href=\"https:\/\/www.swissdatacube.org\/\">Swiss Data Cube<\/a> (SDC) for all the municipalities of the 3 study areas.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>LIS: Landsat IndiceS<\/li>\n\n\n\n<li>LST: Landsat Surface Temperature<\/li>\n\n\n\n<li>CLC: European and Swiss (1990 only) Corine Land Cover (CLC)<\/li>\n\n\n\n<li>DEM: Digital Elevation Model (DEM), elevation and slope<\/li>\n\n\n\n<li>aux_data: region auxiliary data<\/li>\n\n\n\n<li>\u2026<\/li>\n<\/ul>\n\n\n\n<p>TEIs&nbsp; can be found at&nbsp;<a href=\"https:\/\/gricad-gitlab.univ-grenoble-alpes.fr\/steamer\/traces-prci\/-\/tree\/main\/GRID_TEIs\">https:\/\/gricad-gitlab.univ-grenoble-alpes.fr\/steamer\/traces-prci\/-\/tree\/main\/GRID_TEIs<\/a><\/p>\n\n\n\n<p>While 5 observations (years 1990, 2000, 2006, 2012, and 2018) are available for CLC, LIS and LST observations are available over the period 1985 up to 2022 about one a week (about 2000 observations for each TEI and for each municipality).<\/p>\n\n\n\n<p>The transfer of pixels from satellite images to municipal outlines has been performed using Python and R.<\/p>\n\n\n\n<p>The results of these transformations are available as csv files. Each CLC observation measure (considering 15 CLC classes) is available in two units (HA and %). Each LIS and LST observation has three measures: mean, standard deviation, and data quality, with various attributes such as celsius degrees (\u25e6C), percent- age (%) and unitless attributes (-).<\/p>\n\n\n\n<p>LIS (Landsat IndiceS) metadata are available through GeoNetwork at <a href=\"https:\/\/traces-gn.unepgrid.ch\/geonetwork\/\">https:\/\/traces-gn.unepgrid.ch\/geonetwork\/<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Study Areas and Datasets Study Areas The TRACES Project focuses on 3 study areas in Switzerland and France for a total number of 317 municipalities (see Figure 1 and Figure 2) Fgure 1: The 3 TRACES Project study areas. Figure 2: Demographic Evolution of the 3 study areas. Datasets and TRACES Environmental Indices (TEIs) The [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-164","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/traces-anr-fns.imag.fr\/index.php\/wp-json\/wp\/v2\/pages\/164","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/traces-anr-fns.imag.fr\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/traces-anr-fns.imag.fr\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/traces-anr-fns.imag.fr\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/traces-anr-fns.imag.fr\/index.php\/wp-json\/wp\/v2\/comments?post=164"}],"version-history":[{"count":6,"href":"https:\/\/traces-anr-fns.imag.fr\/index.php\/wp-json\/wp\/v2\/pages\/164\/revisions"}],"predecessor-version":[{"id":214,"href":"https:\/\/traces-anr-fns.imag.fr\/index.php\/wp-json\/wp\/v2\/pages\/164\/revisions\/214"}],"wp:attachment":[{"href":"https:\/\/traces-anr-fns.imag.fr\/index.php\/wp-json\/wp\/v2\/media?parent=164"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}