Scott Jasechko's Water Resources Web Site
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May 10, 2022 isotope short course slides

research videos

April 2022 - Fossil groundwater use in the US; for more information see www.mgebreegziabher.com/ and www.debraperrone.com/
April 2021 - Global groundwater wells at risk of running dry

When the river runs dry on Vimeo.

March 2021 - Widespread potential for streams to leak into their underlying aquifers across the USA (see also corresponding blog post (https://sustainabilitycommunity.springernature.com/posts/when-the-river-runs-dry)

When the river runs dry on Vimeo.

August 2019 - Americans are drilling deeper groundwater wells to obtain water.

podcastS

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​What's Up With Water - Circle of Blue (July-2019) - Audio coverage of recent work showing that wells are being drilled deeper. Listen in here: [Link to podcast]
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SplashCast Podcast (January 30, 2018) - SplashCast is a brand new (January 2018) podcast about water resources led by Sarah Sayles at New Mexico State University. In Sarah's first episode, she talks with me about the age of global fresh water, and with Sasha Richey - professor at Washington State University - about GRACE and how humanity can use groundwater sustainably. Listen in here: [SplashCast Episode 1]

Webinar

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​Canadian Water Network Webinar (February 7, 2017) - Isotope hydrology webinar focusing on the "age" of water. Specifically, the webinar explores how long it takes rain and melting snow to work its way into global rivers and groundwater wells. [Link to the event homepage] [Watch the event here]

BlogGING

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Blog posts about (i) widespread leaky rivers across the United States (March, 2021), (ii) hydraulic fracturing nearby domestic groundwater wells (December, 2017), (iii) wells going dry in the western USA  (September, 2017), (iv) global 'fossil' groundwaters (April, 2017), and (v) global groundwater recharge (July, 2015).

videos for teaching

June 2014 - Precipitation tritium levels from 1960 to ~2000 measured at Ottawa. The map of nuclear tests is not my own; this video was created by Isao Hashimoto to whom credit should be given. Yellow diamonds are measurements made in vintage wines after the onset of thermonuclear testing. Levels increase orders of magnitude until the early 1960s after which atmospheric testing largely ceases* (*underground testing continues for several decades). Tritium activities decrease after ~1963 as a rate much faster than would be expected by radioactive decay alone because of sequestration of atmospheric tritium in reservoirs such as oceans and groundwater aquifers. Thank you Glenn Jasechko for help with video editing.

Tritium in precipitation with Isao Hashimoto's map of nuclear explosions from isohydro on Vimeo.

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