upcoming presentations
San Diego State University (SDSU) scheduled for September 25, 2020 (online lecture)
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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I blog at Water Underground, a blog about groundwater hosted by the American Geophysical Union and the European Geosciences Union. I've posted about (i) hydraulic fracturing nearby domestic groundwater wells (December, 2017), (ii) wells going dry in the western USA (September, 2017), (iii) global 'fossil' groundwaters (April, 2017), and (iv) global groundwater recharge (July, 2015).
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VIDEOS
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). Levels 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.
August 2019 - Americans are drilling deeper groundwater wells to obtain water.
Past Oral PRESENTATIONS
45) Dec-2019 [invited] - American Geophysical Fall Meeting
44) Dec-2019 [invited] - Sedgwick Reserve (University of California - Santa Barbara Natural Reserve System)
43) Oct-2019 [invited] - ETH Zurich
42) Oct-2019 [invited] - Symposium at the Luxembourg Institute of Science and Technology
41) Sep-2019 [invited] - University of Southern California
40) Oct-2019 [invited] - University of California - Santa Cruz
39) May-2019 [invited] - University of Melbourne, Department of Infrastructure Engineering
38) Nov-2018 [invited] - University of Georgia, Department of Geology (Athens, GA) [Link]
37) Oct-2017 [invited] - 2017 Geological Society of America Meeting (Seattle, WA)
36) Oct-2017 [invited] - Washington State University Civil and Environmental Engineering (Pullman, WA)
35) Oct-2017 [invited] - New Mexico State University Plant and Environmental Sciences (Las Cruces, NM)
34) Oct-2017 [invited] - University of New Mexico Water Resources Program (Albuquerque, NM)
33) Oct-2017 [invited] - California Institute of Technology, Resnick Sustainability Institute Young Investigators Symposium (Pasadena, CA) [Link]
32) Sep-2017 [invited] - University of Michigan Earth and Environmental Sciences, Smith Lecture Series (Ann Arbor, MI)
31) Feb-2017 [invited] - Canadian Water Network Webinar entitled "Raindrops to Rivers" [Video of presentation]
30) Dec-2016 [invited] - American Geophysical Union 2016 Fall Meeting, entitled "Western USA groundwater drilling"
29) Nov-2016 - American Water Resources Association, entitled "Global fresh waters flowing fast and slow"
28) Sep-2016 [invited] - 2016 Geological Society of America Meeting, entitled "Young and old water in global rivers and groundwater wells"
27) Jun-2016 [invited] - American Geophysical Union Chapman Conference: Emerging Issues in Tropical Ecohydrology, entitled "Continental-scale isotope hydrology"
26) May-2016 - Canadian Geophysical Union Annual Meeting, entitled "Global fresh water ages"
25) Apr-2016 [invited, keynote] - Canadian Water Resources Association Alberta Chapter Meeting, entitled "Flowing fast and slow"
24) Jan-2016 [invited] - Rutgers University Earth and Planetary Sciences, entitled "Global isotope hydrology"
23) Dec-2015 - American Geophysical Union 2015 Fall Meeting, entitled "Young and old water in global rivers and aquifers"
22) Dec-2015 [invited] - American Geophysical Union 2015 Fall Meeting, entitled "Global transpiration, recharge and runoff tracked with stable isotopes"
21) Nov-2015 [invited] - Stanford University Geological Sciences, entitled "Global isotope hydrology"
20) May-2015 - International Atomic Energy Agency conference, entitled "Groundwater renewal rates, seasonal recharge dynamics and paleoclimate records"
19) May-2015 [invited] - University College London Geography, entitled "Global groundwater isotope compositions"
18) Jan-2015 [invited] - University of Calgary Hydrogeology Group, entitled "Groundwater and streamflow ages"
17) Jan-2015 [invited] - Canadian Water Network Workshop, entitled "Water Mentorship"
16) Dec-2014 - American Geophysical Union 2014 Fall Meeting, entitled "Transpiration in the global water cycle"
15) Dec-2014 - American Geophysical Union 2014 Fall Meeting, entitled "Watershed transit times across the USA"
14) Oct-2014 - University of New Mexico, PhD dissertation defense, entitled "Continental-scale isotope hydrology"
13) Jul-2014 - CUAHSI Biennial (graduate student short talks), entitled "The isotopic fingerprint of global groundwater resources"
12) Jan-2014 [invited] - Biosphere II (Arizona), entitled "Global plant breathing, ice age waters & renewable groundwater"
11) Jan-2014 [invited] - University of Washington Civil and Environmental Engineering, entitled "Global plant breathing, ice age waters & renewable groundwater"
10) Sep-2013 [invited] - Red Lakes Wildlife Refuge, entitled "Water use by plants"
9) Apr-2013 - University of New Mexico Shared Knowledge Conference, entitled "Global fresh water consumption by plants"
8) Jan-2013 - University of New Mexico colloquium, entitled "Vegetation dominates the terrestrial water cycle
7) Jun-2012 [invited] - UQAM Departement des sciences de la Terre, entitled "Decoupling evapotranspiration in the terrestrial water cycle"
6) Jun-2012 - Goldschmidt Conference, entitled "Saline groundwater discharges in the Athabasca oil sands region: a chemical mass balance"
5) Mar-2011 - International Atomic Energy Agency conference, entitled "Stable isotope mass balance of the Laurentian Great Lakes to constrain evaporative losses"
4) Feb-2011 - University of Victoria undergraduate hydrogeology course guest lecture, entitled "Tracers in hydrogeology"
3) Feb-2011 - University of Victoria undergraduate geochemistry course guest lecture, entitled "Introduction to stable isotopes in geochemistry"
2) Feb-2011 - University of Victoria undergraduate hydrogeology course guest lecture, entitled "Athabasca oil sands regional hydrogeology: use of isotopic and geochemical tracers"
1) May-2009 - University of Victoria Geography Student Conference, entitled "Isotopes in hydrology"
44) Dec-2019 [invited] - Sedgwick Reserve (University of California - Santa Barbara Natural Reserve System)
43) Oct-2019 [invited] - ETH Zurich
42) Oct-2019 [invited] - Symposium at the Luxembourg Institute of Science and Technology
41) Sep-2019 [invited] - University of Southern California
40) Oct-2019 [invited] - University of California - Santa Cruz
39) May-2019 [invited] - University of Melbourne, Department of Infrastructure Engineering
38) Nov-2018 [invited] - University of Georgia, Department of Geology (Athens, GA) [Link]
37) Oct-2017 [invited] - 2017 Geological Society of America Meeting (Seattle, WA)
36) Oct-2017 [invited] - Washington State University Civil and Environmental Engineering (Pullman, WA)
35) Oct-2017 [invited] - New Mexico State University Plant and Environmental Sciences (Las Cruces, NM)
34) Oct-2017 [invited] - University of New Mexico Water Resources Program (Albuquerque, NM)
33) Oct-2017 [invited] - California Institute of Technology, Resnick Sustainability Institute Young Investigators Symposium (Pasadena, CA) [Link]
32) Sep-2017 [invited] - University of Michigan Earth and Environmental Sciences, Smith Lecture Series (Ann Arbor, MI)
31) Feb-2017 [invited] - Canadian Water Network Webinar entitled "Raindrops to Rivers" [Video of presentation]
30) Dec-2016 [invited] - American Geophysical Union 2016 Fall Meeting, entitled "Western USA groundwater drilling"
29) Nov-2016 - American Water Resources Association, entitled "Global fresh waters flowing fast and slow"
28) Sep-2016 [invited] - 2016 Geological Society of America Meeting, entitled "Young and old water in global rivers and groundwater wells"
27) Jun-2016 [invited] - American Geophysical Union Chapman Conference: Emerging Issues in Tropical Ecohydrology, entitled "Continental-scale isotope hydrology"
26) May-2016 - Canadian Geophysical Union Annual Meeting, entitled "Global fresh water ages"
25) Apr-2016 [invited, keynote] - Canadian Water Resources Association Alberta Chapter Meeting, entitled "Flowing fast and slow"
24) Jan-2016 [invited] - Rutgers University Earth and Planetary Sciences, entitled "Global isotope hydrology"
23) Dec-2015 - American Geophysical Union 2015 Fall Meeting, entitled "Young and old water in global rivers and aquifers"
22) Dec-2015 [invited] - American Geophysical Union 2015 Fall Meeting, entitled "Global transpiration, recharge and runoff tracked with stable isotopes"
21) Nov-2015 [invited] - Stanford University Geological Sciences, entitled "Global isotope hydrology"
20) May-2015 - International Atomic Energy Agency conference, entitled "Groundwater renewal rates, seasonal recharge dynamics and paleoclimate records"
19) May-2015 [invited] - University College London Geography, entitled "Global groundwater isotope compositions"
18) Jan-2015 [invited] - University of Calgary Hydrogeology Group, entitled "Groundwater and streamflow ages"
17) Jan-2015 [invited] - Canadian Water Network Workshop, entitled "Water Mentorship"
16) Dec-2014 - American Geophysical Union 2014 Fall Meeting, entitled "Transpiration in the global water cycle"
15) Dec-2014 - American Geophysical Union 2014 Fall Meeting, entitled "Watershed transit times across the USA"
14) Oct-2014 - University of New Mexico, PhD dissertation defense, entitled "Continental-scale isotope hydrology"
13) Jul-2014 - CUAHSI Biennial (graduate student short talks), entitled "The isotopic fingerprint of global groundwater resources"
12) Jan-2014 [invited] - Biosphere II (Arizona), entitled "Global plant breathing, ice age waters & renewable groundwater"
11) Jan-2014 [invited] - University of Washington Civil and Environmental Engineering, entitled "Global plant breathing, ice age waters & renewable groundwater"
10) Sep-2013 [invited] - Red Lakes Wildlife Refuge, entitled "Water use by plants"
9) Apr-2013 - University of New Mexico Shared Knowledge Conference, entitled "Global fresh water consumption by plants"
8) Jan-2013 - University of New Mexico colloquium, entitled "Vegetation dominates the terrestrial water cycle
7) Jun-2012 [invited] - UQAM Departement des sciences de la Terre, entitled "Decoupling evapotranspiration in the terrestrial water cycle"
6) Jun-2012 - Goldschmidt Conference, entitled "Saline groundwater discharges in the Athabasca oil sands region: a chemical mass balance"
5) Mar-2011 - International Atomic Energy Agency conference, entitled "Stable isotope mass balance of the Laurentian Great Lakes to constrain evaporative losses"
4) Feb-2011 - University of Victoria undergraduate hydrogeology course guest lecture, entitled "Tracers in hydrogeology"
3) Feb-2011 - University of Victoria undergraduate geochemistry course guest lecture, entitled "Introduction to stable isotopes in geochemistry"
2) Feb-2011 - University of Victoria undergraduate hydrogeology course guest lecture, entitled "Athabasca oil sands regional hydrogeology: use of isotopic and geochemical tracers"
1) May-2009 - University of Victoria Geography Student Conference, entitled "Isotopes in hydrology"
