{"id":748,"date":"2025-11-24T16:08:40","date_gmt":"2025-11-24T15:08:40","guid":{"rendered":"https:\/\/wp.unil.ch\/hydrology\/?p=748"},"modified":"2025-11-24T16:08:40","modified_gmt":"2025-11-24T15:08:40","slug":"limits-to-the-estimation-of-old-streamwater-in-catchments-using-environmental-tracers","status":"publish","type":"post","link":"https:\/\/wp.unil.ch\/hydrology\/limits-to-the-estimation-of-old-streamwater-in-catchments-using-environmental-tracers\/","title":{"rendered":"Limits to the Estimation of Old Streamwater in Catchments Using Environmental Tracers"},"content":{"rendered":"\n<p>Our ability to figure out how old stream water is relies almost entirely on environmental tracers. But stable water isotopes rarely tell us anything about water parcels older than 1\u20132 years, and even tritium often doesn\u2019t push that limit much further. This is what <a href=\"https:\/\/wp.unil.ch\/hydrology\/raphael-miazza\/\" data-type=\"page\" data-id=\"431\">Rapha\u00ebl<\/a> found in the first paper of his Ph.D: <a href=\"https:\/\/dx.doi.org\/10.1029\/2025WR040718\">https:\/\/dx.doi.org\/10.1029\/2025WR040718<\/a>. It implies that it is almost impossible to estimate reliably the mean streamwater age (which is the most popular water age statistic&#8230; ). Many scientists knew this before, but this paper provide a first quantitative framework to estimate the &#8220;limiting&#8221; age that can be estimated reliably with typical environmental tracers.<\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Our ability to figure out how old stream water is relies almost entirely on environmental tracers. But stable water isotopes rarely tell us anything about water parcels older&hellip;<\/p>\n","protected":false},"author":1002724,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","footnotes":""},"categories":[1],"tags":[],"class_list":{"0":"post-748","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-uncategorized"},"_links":{"self":[{"href":"https:\/\/wp.unil.ch\/hydrology\/wp-json\/wp\/v2\/posts\/748","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wp.unil.ch\/hydrology\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wp.unil.ch\/hydrology\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wp.unil.ch\/hydrology\/wp-json\/wp\/v2\/users\/1002724"}],"replies":[{"embeddable":true,"href":"https:\/\/wp.unil.ch\/hydrology\/wp-json\/wp\/v2\/comments?post=748"}],"version-history":[{"count":1,"href":"https:\/\/wp.unil.ch\/hydrology\/wp-json\/wp\/v2\/posts\/748\/revisions"}],"predecessor-version":[{"id":749,"href":"https:\/\/wp.unil.ch\/hydrology\/wp-json\/wp\/v2\/posts\/748\/revisions\/749"}],"wp:attachment":[{"href":"https:\/\/wp.unil.ch\/hydrology\/wp-json\/wp\/v2\/media?parent=748"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wp.unil.ch\/hydrology\/wp-json\/wp\/v2\/categories?post=748"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wp.unil.ch\/hydrology\/wp-json\/wp\/v2\/tags?post=748"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}