{"id":15,"date":"2016-10-28T09:32:54","date_gmt":"2016-10-28T09:32:54","guid":{"rendered":"http:\/\/snow.geus.dk\/?p=15"},"modified":"2016-10-28T09:32:54","modified_gmt":"2016-10-28T09:32:54","slug":"2-year-post-doctoral-position-in-snow-optical-remote-sensing-at-lgge","status":"publish","type":"post","link":"https:\/\/snow.geus.dk\/index.php\/2016\/10\/28\/2-year-post-doctoral-position-in-snow-optical-remote-sensing-at-lgge\/","title":{"rendered":"2-year post-doctoral position in snow optical remote sensing at LGGE"},"content":{"rendered":"<p>This project is about monitoring snow properties evolution on<span class=\"s1\"> the long-term using Sentinel satellite series <\/span>at<span class=\"s1\"> global scale. <\/span>The<span class=\"s1\"> successful candidates <\/span>will<span class=\"s1\"> evaluate and develop retrieval algorithms. The project <\/span>will<span class=\"s1\"> more specifically focus <\/span>on<span class=\"s1\"> two <\/span>primary<span class=\"s1\"> sites, <\/span>one<span class=\"s1\"> in Canada and the other <\/span>one<span class=\"s1\"> in the French Alps. Secondary sites including Greenland and Antarctica will <\/span>be<span class=\"s1\"> exploited <\/span>for<span class=\"s1\"> the validation.<\/span><\/p>\n<p class=\"p3\"><span class=\"s1\"><b>Research project<\/b><\/span><\/p>\n<p class=\"p4\"><span class=\"s1\">Optical sensors <\/span>on<span class=\"s1\"> Sentinel-2 <\/span>(MSI)<span class=\"s1\"> and Sentinel-3 (OLCI and SLSTR) provide <\/span>a<span class=\"s1\"> new and unique <\/span>opportunity<span class=\"s1\"> to investigate the temporal and spatial <\/span>variability of<span class=\"s1\"> the <\/span>snow<span class=\"s1\"> cover properties at high spatial resolution and <\/span>on<span class=\"s1\"> the long-term. The objective <\/span>of<span class=\"s1\"> this post-doctoral position is to <\/span>1)<span class=\"s1\"> evaluate global moderate-resolution algorithms <\/span>for snow<span class=\"s1\"> cover properties retrieval (snow cover fraction, spectral and broadband albedo, snow specific surface area <\/span>&#8211;<span class=\"s1\"> SSA and <\/span>light<span class=\"s1\"> absorbing <\/span>impurity<span class=\"s1\"> content) <\/span>from<span class=\"s1\"> S-3 images developed <\/span>by<span class=\"s1\"> other parties and <\/span>2)<span class=\"s1\"> develop and evaluate high- resolution algorithms adapted to complex terrains <\/span>from<span class=\"s1\"> S-2. The second objective is interesting by itself and <\/span>will<span class=\"s1\"> also provide validation data <\/span>for<span class=\"s1\"> the first objective <\/span>on<span class=\"s1\"> specific sites.<\/span><\/p>\n<p class=\"p5\"><span class=\"s1\">The general evaluation will <\/span>use<span class=\"s1\"> data <\/span>from many<span class=\"s1\"> sites around the world where in-situ observations are available (Alps, Arctic, EGRIP in Greenland, Dome <\/span>C<span class=\"s1\"> in Antarctica, <\/span>\u2026).<span class=\"s1\"> The second objective will <\/span>be<span class=\"s1\"> especially focused at <\/span>2<span class=\"s1\"> locations <\/span>:<\/p>\n<ol class=\"ol1\">\n<ul class=\"ul1\">\n<li class=\"li6\"><span class=\"s1\">Umijaq area in Canadian Arctic where the interest is <\/span>on<span class=\"s1\"> monitoring snow-vegetation interactions in relationship with climate change, greening and permafrost evolution.<\/span><\/li>\n<li class=\"li6\"><span class=\"s1\">Col <\/span>du <span class=\"s1\">Lautaret in the French Alps which<\/span> <span class=\"s1\">features<\/span> <span class=\"s1\">complex<\/span> <span class=\"s1\">terrain and<\/span> <span class=\"s1\">potential high human impact. The interest is<\/span> <span class=\"s1\">in following<\/span> <span class=\"s1\">the<\/span> <span class=\"s1\">evolution<\/span> of <span class=\"s1\">snow<\/span> <span class=\"s1\">impurities and induced<\/span> <span class=\"s1\">changes in <\/span>snow<span class=\"s1\"> physics at<\/span> <span class=\"s1\">the site<\/span> <span class=\"s1\">which is largely impacted by Saharan dust deposition events as well as providing data <\/span>for<span class=\"s1\"> snow-vegetation interaction.<\/span><\/li>\n<\/ul>\n<\/ol>\n<p class=\"p3\"><span class=\"s1\">These two sites have been equipped with specific instrumentation dedicated to <\/span>snow<span class=\"s1\"> monitoring (including <i>in situ <\/i>spectral reflectance measurements, SSA and light absorbing impurities measurements).<\/span><\/p>\n<p class=\"p3\"><span class=\"s1\">The <\/span>work<span class=\"s1\"> plan includes <\/span>:<\/p>\n<ol class=\"ol1\">\n<ul class=\"ul1\">\n<li class=\"li6\"><span class=\"s1\">Adapting atmospheric and topographic corrections existing algorithms to <\/span>S-2<span class=\"s1\"> and<\/span> S-3<span class=\"s1\"> images (MODINLAB <\/span>by<span class=\"s1\"> Sirguey et <\/span>al., 2009 ;<span class=\"s1\"> Dumont et al., <\/span>2012)<\/li>\n<li class=\"li6\"><span class=\"s1\">Developing snow cover fraction, snow SSA, light absorbing impurities content, snow spectral and broadband albedo based <\/span>on<span class=\"s1\"> methodology <\/span>for S2<span class=\"s1\"> proposed in Dumont et al., <\/span>2012 ; Kokhanovsky<span class=\"s1\"> and Zege, <\/span>2004,<span class=\"s1\"> Malinka, <\/span>2014<span class=\"s1\"> and Picard et al., <\/span>2016.<\/li>\n<li class=\"li6\"><span class=\"s1\">Participating in field measurements campaigns at Col <\/span>du<span class=\"s1\"> Lautaret, Umijaq and <\/span>possibly<span class=\"s1\"> E<\/span>G<span class=\"s1\">RIP<\/span>.<\/li>\n<li class=\"li8\"><span class=\"s1\">Evaluate the accuracy <\/span>of<span class=\"s1\"> the proposed algorithms at the two sites<\/span><\/li>\n<li class=\"li9\"><span class=\"s1\">Evaluate the accuracy <\/span>of<span class=\"s1\"> available moderate-resolution algorithms <\/span>at<span class=\"s1\"> the two sites and at other sites where in-situ data are available.<\/span><\/li>\n<li class=\"li6\"><span class=\"s1\">Investigate the temporal and spatial variability <\/span>of<span class=\"s1\"> the snow cover properties <\/span>for<span class=\"s1\"> theses locations in relationship to the specific scientific objectives.<\/span><\/li>\n<\/ul>\n<\/ol>\n<p class=\"p5\"><span class=\"s1\">Within this project, special attention will <\/span>be<span class=\"s1\"> drawn to the effect <\/span>of<span class=\"s1\"> terrain <\/span>complexity on<span class=\"s1\"> the <\/span>accuracy of<span class=\"s1\"> the surface reflectance and the effect <\/span>of snow<span class=\"s1\"> surface roughness <\/span>on<span class=\"s1\"> retrieved surface reflectance and snow properties.<\/span><\/p>\n<p class=\"p11\"><span class=\"s1\">Progresses and results shall <\/span>be<span class=\"s1\"> documented in project reports. <\/span>As<span class=\"s1\"> part <\/span>of<span class=\"s1\"> the scientific dissemination it is also expected that the postdoc present results in scientific journals and <\/span>at<span class=\"s1\"> international conferences.<\/span><\/p>\n<p class=\"p5\"><span class=\"s1\">This work will contribute to two projects; <\/span>one<span class=\"s1\"> funded by <\/span>the<span class=\"s1\"> European Space <\/span>Agency (PI<span class=\"s1\"> Jason Box, GEUS, Danemark) and the other <\/span>one<span class=\"s1\"> by the BNP Paribas fundation <\/span>(PI<span class=\"s1\"> Florent Domin\u00e9, Takuvik,\u00a0<\/span>U.<span class=\"s1\"> Laval, Canada). The position is based in Grenoble, <\/span>a<span class=\"s1\"> place <\/span>known for<span class=\"s1\"> its excellence in snow science, <\/span>but<span class=\"s1\"> also implies strong international collaborations with colleagues in Canada, Germany and Denmark.<\/span><\/p>\n<p class=\"p5\"><span class=\"s1\"><b>Position summary<\/b><\/span><\/p>\n<p class=\"p5\"><span class=\"s1\">Full-time <\/span>temporary<span class=\"s1\"> employment. The position is funded <\/span>for 24<span class=\"s1\"> months <\/span>from January 2017<span class=\"s1\"> to December <\/span>2018.<\/p>\n<p class=\"p5\"><span class=\"s1\"><b>Qualifications<\/b><\/span><\/p>\n<p class=\"p5\"><span class=\"s1\">To <\/span>qualify<span class=\"s1\"> as <\/span>a<span class=\"s1\"> candidate <\/span>for<span class=\"s1\"> the postdoc position you must have <\/span>a<span class=\"s1\"> Ph.D. degree with strength in remote sensing, <\/span>snow<span class=\"s1\"> optics and<\/span> <span class=\"s1\">physics<\/span> or <span class=\"s1\">related<\/span> <span class=\"s1\">disciplines and you must<\/span> <span class=\"s1\">have <\/span>a<span class=\"s1\"> solid<\/span> <span class=\"s1\">theoretical background in mathematics, physics, statistical analysis and programming. <\/span>A<span class=\"s1\"> genuine interest and <\/span>curiosity<span class=\"s1\"> in the field measurements campaigns and excellent programming skills (e.g. python) are needed. Experience in processing<\/span> <span class=\"s1\">and<\/span> <span class=\"s1\">analysis <\/span>of <span class=\"s1\">data<\/span> from<span class=\"s1\"> satellites, in<\/span> <span class=\"s1\">situ measurements<\/span> or <span class=\"s1\">snow models is regarded as an advantage <\/span>for<span class=\"s1\"> the position. The position requires <\/span>good<span class=\"s1\"> verbal and written communication skills in English, as most <\/span>of<span class=\"s1\"> the <\/span>work<span class=\"s1\"> will take place in an international environment. <\/span>An<span class=\"s1\"> initial scientific publication record is expected.<\/span><\/p>\n<p class=\"p5\"><span class=\"s1\"><b>Contacts<\/b><\/span><\/p>\n<p class=\"p3\"><span class=\"s1\">Ghislain Picard (ghislain.picard@univ-grenoble-alpes.fr)<\/span><\/p>\n<p class=\"p3\"><span class=\"s1\">Marie Dumont (marie.dumont@meteo.fr)<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>This project is about monitoring snow properties evolution on the long-term using Sentinel satellite series at global scale. The successful candidates will evaluate and develop retrieval algorithms. The project will more specifically focus on two primary sites, one in Canada and the other one in the French Alps. Secondary sites including Greenland and Antarctica will &hellip; <a href=\"https:\/\/snow.geus.dk\/index.php\/2016\/10\/28\/2-year-post-doctoral-position-in-snow-optical-remote-sensing-at-lgge\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;2-year post-doctoral position in snow optical remote sensing at LGGE&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"jetpack_publicize_message":"","jetpack_is_tweetstorm":false,"jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","enabled":false}}},"categories":[1],"tags":[],"jetpack_publicize_connections":[],"aioseo_notices":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/paxG8S-f","jetpack-related-posts":[{"id":41,"url":"https:\/\/snow.geus.dk\/index.php\/2017\/06\/22\/collocated-sentinel-3-olci-and-slstr-reflectance-imagery\/","url_meta":{"origin":15,"position":0},"title":"Collocated Sentinel-3 OLCI and SLSTR reflectance imagery","date":"June 22, 2017","format":false,"excerpt":"The S3 4Sci Snow research project is gaining momentum, now with scripts that enable batch processing of\u00a0two important steps: 1.) collocating OLCI and SLSTR imagery, that is, aligning pixels to a common geographic grid and 2.) converting the imagery to top of the atmosphere reflectance. (above, 22 August 2016 southern\u2026","rel":"","context":"Similar post","img":{"alt_text":"20160822-s3-band-21-1020-nm-greenland","src":"https:\/\/i0.wp.com\/snow.geus.dk\/wp-content\/uploads\/20160822-S3-band-21-1020-nm-Greenland.png?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":27,"url":"https:\/\/snow.geus.dk\/index.php\/2017\/04\/03\/optical-remote-sensing-to-improve-snow-models\/","url_meta":{"origin":15,"position":1},"title":"Optical remote sensing to improve snow models &#8211; Copenhagen Workshop Session","date":"April 3, 2017","format":false,"excerpt":"This ESA SEOM Sentinel-3 for Science Land Study: Snow \"S-3-Snow\"\u00a0includes an element to gather and prioritise snow modeller interest and requirements about optical remotely sensed snow parameters (snow extent, albedo, grain size, impurity content). The ESA contract is to engage\u00a0users of Sentinel-3 snow optical retrievals in 1.) model comparison and\/or\u2026","rel":"","context":"In &quot;meeting&quot;","img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":82,"url":"https:\/\/snow.geus.dk\/index.php\/2017\/09\/01\/workshop-including-model-uses-of-optical-remotely-sensed-data\/","url_meta":{"origin":15,"position":2},"title":"workshop including Model uses of Optical Remotely Sensed Data","date":"September 1, 2017","format":false,"excerpt":"\u00a0 see session 4 in the following that is designed to resonate with this ESA contract... Workshop:\u00a0Modeling Meltwater in Snow and Firn: Processes, Validation, Intercomparison and Model uses of Optical Remotely Sensed Data 20-22 September 2017, Copenhagen. The\u00a0workshop\u00a0starts\u00a0Wednesday Sep 20 at 12.00, and ends\u00a0Friday Sep 22 at 12.00. A PROMICE\u2026","rel":"","context":"Similar post","img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":52,"url":"https:\/\/snow.geus.dk\/index.php\/2017\/07\/07\/sentinel-2-and-sentinel-3-snow-optics-field-validation-at-col-du-lautaret-in-the-french-alps\/","url_meta":{"origin":15,"position":3},"title":"Sentinel-2 and Sentinel-3 snow optics field validation at Col du Lautaret, in the French Alps","date":"July 7, 2017","format":false,"excerpt":"Field measurements are essential for testing the performance of new algorithms and validating satellite remote sensing products. Among the validation sites chosen for the project, Col du Lautaret, in the French Alps is an ideal validation site, as it offers easy access and a variety of conditions to test the\u2026","rel":"","context":"In &quot;field validation&quot;","img":{"alt_text":"2017-03-28-11-21-51","src":"https:\/\/i0.wp.com\/snow.geus.dk\/wp-content\/uploads\/2017-03-28-11-21-51-1024x870.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":133,"url":"https:\/\/snow.geus.dk\/index.php\/2018\/09\/26\/web-story-sentinel-3-validation-team-forge-ahead-with-satellite-data\/","url_meta":{"origin":15,"position":4},"title":"Web Story: Sentinel-3 validation team forge ahead with satellite data","date":"September 26, 2018","format":false,"excerpt":"link to 16 MARCH 2017 Web Story Sentinel-3 Validation Team forge ahead with satellite data Cryosphere Excerpt copied form above link: Sentinel-3 is providing key observations addressing cryosphere's evolution given that decreasing snow cover is one of the clearest indicators of a warming climate. Snow has a major influence on\u2026","rel":"","context":"Similar post","img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":36,"url":"https:\/\/snow.geus.dk\/index.php\/2017\/06\/22\/sentinel-2-at-the-lautaret-site\/","url_meta":{"origin":15,"position":5},"title":"Sentinel-2 at the Lautaret site","date":"June 22, 2017","format":false,"excerpt":"The col du Lautaret site, located in the heart of the French Alps, is used by the team as a validation target for the \"ESA SEOM Sentinel-3 for Science Land Study: Snow S-3-Snow\u201d\" project. The site is host to numerous observations of the snowpack and the atmosphere which will be\u2026","rel":"","context":"In &quot;data&quot;","img":{"alt_text":"s2-lautaret","src":"https:\/\/i0.wp.com\/snow.geus.dk\/wp-content\/uploads\/S2-Lautaret.gif?resize=350%2C200","width":350,"height":200},"classes":[]}],"_links":{"self":[{"href":"https:\/\/snow.geus.dk\/index.php\/wp-json\/wp\/v2\/posts\/15"}],"collection":[{"href":"https:\/\/snow.geus.dk\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/snow.geus.dk\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/snow.geus.dk\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/snow.geus.dk\/index.php\/wp-json\/wp\/v2\/comments?post=15"}],"version-history":[{"count":1,"href":"https:\/\/snow.geus.dk\/index.php\/wp-json\/wp\/v2\/posts\/15\/revisions"}],"predecessor-version":[{"id":16,"href":"https:\/\/snow.geus.dk\/index.php\/wp-json\/wp\/v2\/posts\/15\/revisions\/16"}],"wp:attachment":[{"href":"https:\/\/snow.geus.dk\/index.php\/wp-json\/wp\/v2\/media?parent=15"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/snow.geus.dk\/index.php\/wp-json\/wp\/v2\/categories?post=15"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/snow.geus.dk\/index.php\/wp-json\/wp\/v2\/tags?post=15"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}