{"id":6,"date":"2019-11-28T16:00:19","date_gmt":"2019-11-28T15:00:19","guid":{"rendered":"http:\/\/wp.unil.ch\/modele\/?page_id=6"},"modified":"2026-06-11T11:49:17","modified_gmt":"2026-06-11T09:49:17","slug":"home","status":"publish","type":"page","link":"https:\/\/wp.unil.ch\/hydrology\/","title":{"rendered":"Water flow and solute transport"},"content":{"rendered":"\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:75%\">\n<p class=\"wp-block-paragraph\">We are the Hydrology group at the Institute of Earth Surface Dynamics. We do research in catchment ecohydrology. We build models and do field work. Our research includes:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Water age and transit time distributions<\/li>\n\n\n\n<li>Solute transport in catchments<\/li>\n\n\n\n<li>Isotope ecohydrology<\/li>\n\n\n\n<li>Soil column experiments<\/li>\n<\/ul>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\">\n<figure class=\"wp-block-image is-resized\"><img alt=\"\" loading=\"lazy\" decoding=\"async\" width=\"880\" height=\"880\" src=\"https:\/\/wp.unil.ch\/hydrology\/files\/2023\/12\/3Dcatchment_logo.png\" alt=\"\" class=\"wp-image-399\" style=\"width:200px\" srcset=\"https:\/\/wp.unil.ch\/hydrology\/files\/2023\/12\/3Dcatchment_logo.png 880w, https:\/\/wp.unil.ch\/hydrology\/files\/2023\/12\/3Dcatchment_logo-300x300.png 300w, https:\/\/wp.unil.ch\/hydrology\/files\/2023\/12\/3Dcatchment_logo-150x150.png 150w, https:\/\/wp.unil.ch\/hydrology\/files\/2023\/12\/3Dcatchment_logo-768x768.png 768w, https:\/\/wp.unil.ch\/hydrology\/files\/2023\/12\/3Dcatchment_logo-540x540.png 540w\" sizes=\"auto, (max-width: 880px) 100vw, 880px\" \/><\/figure>\n<\/div>\n<\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\n\n\n\n<h2 class=\"wp-block-heading\">News<\/h2>\n\n\n<ul class=\"wp-block-latest-posts__list has-dates wp-block-latest-posts has-small-font-size\"><li><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/wp.unil.ch\/hydrology\/water-demography-at-the-unil-7x7-de-la-recherche\/\">Water demography at the UNIL 7&#215;7 de la Recherche<\/a><time datetime=\"2026-06-09T11:24:51+02:00\" class=\"wp-block-latest-posts__post-date\">9 June 2026<\/time><div class=\"wp-block-latest-posts__post-full-content\"><!-- wp:paragraph -->\n<p>Paolo Benettin represented the Faculty of Geoscience and the Environment at a new type of event made to communicate academic research to a broad audience: the 7&#215;7! That is, 7 researchers presenting their research for 7 minutes each (in French).<\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:paragraph -->\n<p>The whole event is available <a href=\"https:\/\/www.youtube.com\/watch?v=0pT6oiR9r04\">here<\/a>, while Paolo&#8217;s specific presentation, featuring the link between water age and veterinary pharmaceuticals (based on recent work by Rakonjac et al, 2025*) is available <a href=\"https:\/\/www.youtube.com\/watch?v=TGrIHGUw668&amp;list=PLGLNN-KqKMrRB649zOmaby4cbIo_jkzE4&amp;index=3\">here<\/a>.<\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:paragraph -->\n<p>Putting together a presentation of 7 minutes for a general audience takes much longer than preparing a 1-hour scientific presentation. But from time to time it is useful and also fun!<\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:image {\"id\":1177,\"sizeSlug\":\"large\",\"linkDestination\":\"none\"} -->\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/wp.unil.ch\/hydrology\/files\/2026\/06\/7x7_82_small-1024x683.jpg\" alt=\"The whole team presenting at the 7x7 UNIL\" class=\"wp-image-1177\" srcset=\"https:\/\/wp.unil.ch\/hydrology\/files\/2026\/06\/7x7_82_small-1024x683.jpg 1024w, https:\/\/wp.unil.ch\/hydrology\/files\/2026\/06\/7x7_82_small-300x200.jpg 300w, https:\/\/wp.unil.ch\/hydrology\/files\/2026\/06\/7x7_82_small-768x512.jpg 768w, https:\/\/wp.unil.ch\/hydrology\/files\/2026\/06\/7x7_82_small-1536x1025.jpg 1536w, https:\/\/wp.unil.ch\/hydrology\/files\/2026\/06\/7x7_82_small-540x360.jpg 540w, https:\/\/wp.unil.ch\/hydrology\/files\/2026\/06\/7x7_82_small-1080x720.jpg 1080w, https:\/\/wp.unil.ch\/hydrology\/files\/2026\/06\/7x7_82_small.jpg 1799w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">The whole team of presenters at the 7&#215;7 UNIL<\/figcaption><\/figure>\n<!-- \/wp:image -->\n\n<!-- wp:image {\"id\":1178,\"sizeSlug\":\"large\",\"linkDestination\":\"none\"} -->\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/wp.unil.ch\/hydrology\/files\/2026\/06\/7x7_58_small-1024x683.jpg\" alt=\"Paolo Benettin inviting the audience to imagine an impermeable soil at the back of the room\" class=\"wp-image-1178\" srcset=\"https:\/\/wp.unil.ch\/hydrology\/files\/2026\/06\/7x7_58_small-1024x683.jpg 1024w, https:\/\/wp.unil.ch\/hydrology\/files\/2026\/06\/7x7_58_small-300x200.jpg 300w, https:\/\/wp.unil.ch\/hydrology\/files\/2026\/06\/7x7_58_small-768x512.jpg 768w, https:\/\/wp.unil.ch\/hydrology\/files\/2026\/06\/7x7_58_small-1536x1025.jpg 1536w, https:\/\/wp.unil.ch\/hydrology\/files\/2026\/06\/7x7_58_small-540x360.jpg 540w, https:\/\/wp.unil.ch\/hydrology\/files\/2026\/06\/7x7_58_small-1080x720.jpg 1080w, https:\/\/wp.unil.ch\/hydrology\/files\/2026\/06\/7x7_58_small.jpg 1799w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Paolo Benettin inviting the audience to imagine an impermeable soil at the back of the room<\/figcaption><\/figure>\n<!-- \/wp:image -->\n\n<!-- wp:paragraph -->\n<p>*Reference: Rakonjac*, N., Miazza, R., Rinaldo, A., Ritsema, C. J., &amp;\u00a0<strong>Benettin<\/strong>, P. (<a href=\"https:\/\/doi.org\/10.1016\/j.jconhyd.2025.104704\">2025<\/a>). Short water transit times determine the fate of veterinary pharmaceuticals in lowland catchments.\u00a0<em>Journal of Contaminant Hydrology<\/em>.\u00a0<\/p>\n<!-- \/wp:paragraph --><\/div><\/li>\n<li><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/wp.unil.ch\/hydrology\/first-testing-of-the-ecotron-system\/\">First testing of the Ecotron system<\/a><time datetime=\"2026-05-04T11:00:44+02:00\" class=\"wp-block-latest-posts__post-date\">4 May 2026<\/time><div class=\"wp-block-latest-posts__post-full-content\"><!-- wp:columns -->\n<div class=\"wp-block-columns\"><!-- wp:column -->\n<div class=\"wp-block-column\"><!-- wp:image {\"id\":917,\"sizeSlug\":\"large\",\"linkDestination\":\"none\"} -->\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"769\" height=\"1024\" src=\"https:\/\/wp.unil.ch\/hydrology\/files\/2026\/05\/pxl_20260422_121105724_small-1-769x1024.jpg\" alt=\"pxl 20260422 121105724 small\" class=\"wp-image-917\" srcset=\"https:\/\/wp.unil.ch\/hydrology\/files\/2026\/05\/pxl_20260422_121105724_small-1-769x1024.jpg 769w, https:\/\/wp.unil.ch\/hydrology\/files\/2026\/05\/pxl_20260422_121105724_small-1-225x300.jpg 225w, https:\/\/wp.unil.ch\/hydrology\/files\/2026\/05\/pxl_20260422_121105724_small-1-768x1023.jpg 768w, https:\/\/wp.unil.ch\/hydrology\/files\/2026\/05\/pxl_20260422_121105724_small-1-540x719.jpg 540w, https:\/\/wp.unil.ch\/hydrology\/files\/2026\/05\/pxl_20260422_121105724_small-1.jpg 901w\" sizes=\"auto, (max-width: 769px) 100vw, 769px\" \/><figcaption class=\"wp-element-caption\">The Ecotron with the newly installed soil columns<\/figcaption><\/figure>\n<!-- \/wp:image --><\/div>\n<!-- \/wp:column -->\n\n<!-- wp:column -->\n<div class=\"wp-block-column\"><!-- wp:paragraph -->\n<p>We&#8217;re happy to share that the first testing of our Ecotron system has started (many thanks to our civil servant S\u00e9bastien Rogers for making this possible).<\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:paragraph -->\n<p>The Ecotron is a box (3 m<sup>3<\/sup>) that allows simulating environmental conditions like solar radiation and precipitation, but also soil groundwater dynamics. It has a sensor system that allows continuous control and monitoring throughout experiments that can run anywhere from a few days to several months.<\/p>\n<!-- \/wp:paragraph --><\/div>\n<!-- \/wp:column --><\/div>\n<!-- \/wp:columns -->\n\n<!-- wp:image {\"id\":915,\"sizeSlug\":\"large\",\"linkDestination\":\"none\"} -->\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"769\" src=\"https:\/\/wp.unil.ch\/hydrology\/files\/2026\/05\/pxl_20260422_121326457_small-1024x769.jpg\" alt=\"pxl 20260422 121326457 small\" class=\"wp-image-915\" srcset=\"https:\/\/wp.unil.ch\/hydrology\/files\/2026\/05\/pxl_20260422_121326457_small-1024x769.jpg 1024w, https:\/\/wp.unil.ch\/hydrology\/files\/2026\/05\/pxl_20260422_121326457_small-300x225.jpg 300w, https:\/\/wp.unil.ch\/hydrology\/files\/2026\/05\/pxl_20260422_121326457_small-768x577.jpg 768w, https:\/\/wp.unil.ch\/hydrology\/files\/2026\/05\/pxl_20260422_121326457_small-1536x1153.jpg 1536w, https:\/\/wp.unil.ch\/hydrology\/files\/2026\/05\/pxl_20260422_121326457_small-540x406.jpg 540w, https:\/\/wp.unil.ch\/hydrology\/files\/2026\/05\/pxl_20260422_121326457_small-1080x811.jpg 1080w, https:\/\/wp.unil.ch\/hydrology\/files\/2026\/05\/pxl_20260422_121326457_small.jpg 1598w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Vegetation in the Ecotron being irrigated for the first time<\/figcaption><\/figure>\n<!-- \/wp:image -->\n\n<!-- wp:paragraph -->\n<p>More updates to come as things progress!<\/p>\n<!-- \/wp:paragraph --><\/div><\/li>\n<\/ul>\n\n\n<p class=\"wp-block-paragraph\">see <a href=\"https:\/\/wp.unil.ch\/hydrology\/news\/\" data-type=\"page\" data-id=\"433\">all news<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>We are the Hydrology group at the Institute of Earth Surface Dynamics. We do research in catchment ecohydrology. We build models and do field work. Our research includes:&hellip;<\/p>\n","protected":false},"author":108,"featured_media":174,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"template-full-width.php","meta":{"_seopress_titles_title":"%%sitetitle%%","_seopress_titles_desc":"We are the Hydrology group at the Institute of Earth Surface Dynamics. We do research in catchment ecohydrology. 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