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Yosemite Hydroclimate Meeting 2017

  • Yosemite Lodge, Garden Terrace Room 9006 Yosemite Lodge Drive YOSEMITE NATIONAL PARK, CA, 95389 United States (map)

Presentations from the event

Snow Drought in the Western U.S. Mountains: Proximate Causes, Regional
Differences, and Implications for Streamflow and Forests

Adrian Harpold et al., Univ. of Nevada - Reno

Exploring the Hydrometeorological Origins of Snow Droughts
Dan McEvoy et al., Desert Research Institute - Reno

Atmospheric River Strength Scaling System
Mike Dettinger, USGS – Carson City

Drought Response across Sierran Forests in a Warming Climate
Roger Bales, UC Merced

Estimating ET Change due to Forest Treatment and Fire and the Basin Scale in the Sierra Nevada, CA
Jim Roche et al., Yosemite NP – El Portal

Does Cloudiness Matter? Cloud Cover Variations Affect Streamflow In Recent Dry and Wet Periods
Edwin Sumargo & Dan Cayan, Scripps Institution of Oceanography – La Jolla

How Extreme was the 2016-17 Winter Compared to Other Active Seasons?
Kris Mattarochia, National Weather Service - Hanford

A Simple Model to Predict Total Organic Carbon Build-Up and Depletion in the Hetch Hetchy Watershed
Rebecca Pluche, SFPUC – San Francisco

Impacts of a Record Year after Years of Drought
Maureen McCarthy, U. Nev. – Reno & Mike Dettinger, USGS – Carson City

Aquatic-Terrestrial Food Webs Leading to Birds, Bats, and More
Breeanne Jackson, Yosemite National Park - El Portal


About the Event

The annual Yosemite Hydroclimate Meeting is scheduled for Oct. 5-6, 2017.  We will meet in the Garden Terrace Room again, adjacent to Yosemite Lodge, from 9:00 to 5:00 on the 5th and 8:00 to noon on the 6th.  We are returning to our old format of all day on Thursday and until noon on Friday.  This conference is an excellent opportunity to describe your work in Yosemite National Park as well as the greater Sierra Nevada region.  After the record-breaking WY2017, the suggested conference theme is "Recovery from extended drought after a wet year – what systems recover?"  Forest and aquatic ecosystems have long memories, and variability appears to be increasing.  How do we respond as researchers, ecosystem monitors, and managers?

Additionally, wet years can cause many types of damage – collapsed buildings, delayed recreation seasons, stream bank erosion, abundant vegetation leading to enhanced fire danger – many impacts are far from positive.  And this past winter also showed what future warm winters may be like – heavy rain at high elevations and more rain than snow for part of the winter, leading to high midwinter flows in streams that normally don’t get high flow until snowmelt runoff.  All of these topics are worthy of presentations and discussion. 

 However, as usual, the conference is always a forum to present a broad range of water- and climate-related topics from meteorology to mammal and bird populations.  If you would like to contribute a talk, please send the organizers a title and a 250-word abstract summarizing your presentation by July 30. As in the past, most of the talks will be scheduled for 20 min. and additional time for will be allocated for discussion (questions, research or management implications) at the end of some talks, or at the end of the session. We will attempt to accommodate requests for additional time or pairing of talks, as feasible. 

As we did last year, the first 60 or 90 minutes on Friday morning will be allocated to a roundtable discussing updates and changes to instruments and monitoring networks.   The focus will be on keeping Park staff informed, allow us to share resources and opportunities, and focus our thinking, interpretations, and research goals.

Final Agenda available here >

  Please contact either of the event organizers if you have any questions or suggestions.

Event Organizers

Bruce McGurk,, 925-698-4683

Mike Dettinger,, 858-822-1507