{"id":20500,"date":"2023-08-25T11:57:47","date_gmt":"2023-08-25T09:57:47","guid":{"rendered":"https:\/\/www.cerege.fr\/fr\/agenda\/grands-seminaires-du-cerege-anne-alexandre-cerege-2\/"},"modified":"2023-09-06T18:05:09","modified_gmt":"2023-09-06T16:05:09","slug":"grand-seminars-du-cerege-anne-alexandre-cerege-2","status":"publish","type":"tribe_events","link":"https:\/\/www.cerege.fr\/en\/agenda\/grands-seminaires-du-cerege-anne-alexandre-cerege-2\/","title":{"rendered":"CEREGE Major Seminars: Anne Alexandre (CEREGE)"},"content":{"rendered":"<p>**Title:** Continental atmospheric relative humidity revealed by the triple isotopic composition of oxygen, water and plant silica<br \/>\n**Summary:** While continental relative humidity is decreasing on a global scale across the continents, on a regional scale, predictions for the coming decades remain highly imprecise. Yet continental relative humidity is a key climatic parameter in the evolution of ecosystems. In this presentation, I will show how continental relative humidity controls plant transpiration; how changes in humidity are recorded by the triple isotopic composition of oxygen in water and silica in plants, which we are able to measure at CEREGE; why we are trying to reconstruct these changes over the last 3,000 years in intertropical Africa; and how this could enable us to better predict future changes in continental relative humidity and ecosystems in intertropical regions.<br \/>\nThe event will start with a coffee served in front of the Pasteur amphitheatre at 13:15.<br \/>\nThe presentation will be in French and will be available for streaming (http:\/\/streaming-a.osupytheas.fr\/embed\/live.html).<\/p>","protected":false},"excerpt":{"rendered":"<p>**Titre :** L\u2019humidit\u00e9 relative atmosph\u00e9rique continentale r\u00e9v\u00e9l\u00e9e par la triple composition isotopique de l\u2019oxyg\u00e8ne de l\u2019eau et de la silice des plantes **R\u00e9sum\u00e9 :** Si l\u2019humidit\u00e9 relative continentale diminue \u00e0 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"template":"","meta":{"_acf_changed":false,"_tribe_events_status":"","_tribe_events_status_reason":"","footnotes":""},"tags":[],"tribe_events_cat":[],"class_list":["post-20500","tribe_events","type-tribe_events","status-publish","hentry"],"acf":[],"publishpress_future_workflow_manual_trigger":{"enabledWorkflows":[]},"_links":{"self":[{"href":"https:\/\/www.cerege.fr\/en\/wp-json\/wp\/v2\/tribe_events\/20500","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.cerege.fr\/en\/wp-json\/wp\/v2\/tribe_events"}],"about":[{"href":"https:\/\/www.cerege.fr\/en\/wp-json\/wp\/v2\/types\/tribe_events"}],"author":[{"embeddable":true,"href":"https:\/\/www.cerege.fr\/en\/wp-json\/wp\/v2\/users\/1"}],"version-history":[{"count":1,"href":"https:\/\/www.cerege.fr\/en\/wp-json\/wp\/v2\/tribe_events\/20500\/revisions"}],"predecessor-version":[{"id":20509,"href":"https:\/\/www.cerege.fr\/en\/wp-json\/wp\/v2\/tribe_events\/20500\/revisions\/20509"}],"wp:attachment":[{"href":"https:\/\/www.cerege.fr\/en\/wp-json\/wp\/v2\/media?parent=20500"}],"wp:term":[{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.cerege.fr\/en\/wp-json\/wp\/v2\/tags?post=20500"},{"taxonomy":"tribe_events_cat","embeddable":true,"href":"https:\/\/www.cerege.fr\/en\/wp-json\/wp\/v2\/tribe_events_cat?post=20500"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}