Images

USGS booth at 2025 Tahoe Summit. Pictured from left, Sara Doyle (NV WSC), Zach Hood (NV WSC), David Smith (NV WSC), Ed Parvin (CAWSC) and Mark Dickman (CAWSC). Photograph by Ramon Naranjo (NV WSC) on 8/6/25.

Crown gathered at 2025 Tahoe Summit. The Lake Tahoe Summit is an annual event that brings local, federal, and state leaders together to discuss ways to protect Lake Tahoe and strengthen the partnership underlying the Lake Tahoe Environmental Improvement Program. 

A field in California's Central Valley. This is being used to represent the Central Valley Hydrologic Model, version 2.

Klamath River Basin straddles northern California and southern Oregon. The Klamath River empties into the Pacific Ocean just below the Oregon/California border.

Water availability in the Klamath Basin is shaped by three interconnected factors, like overlapping circles in a Venn diagram. First, upper basin controls—such as groundwater, snowpack, and runoff—determine how much water is available. Second, biological opinions set flow requirements to protect endangered fish and habitats, including flushing and geomorphic flows.

This is a screenshot showing the hydrology for Lake Earl WA inside the CDFW climate hydrology explorer web tool.

Aerial shot of bird migration. The kōlea, or Pacific Golden-Plover (Pluvialis fulva), is a familiar bird in Hawaiʻi that migrates to Alaska each summer to nest. 

Conference area of Cal Poly San Luis Obispo Field Office. The Tech Park II office space offers various amenities including conference rooms, break areas, and convenient access to campus resources, fostering an environment conducive to collaboration with the university.

The kōlea, or Pacific Golden-Plover (Pluvialis fulva), is a familiar bird in Hawaiʻi that migrates to Alaska each summer to nest. 

Native Hawaiian and Alaska Native participants and project partners gathered at the Knowledge Exchange in Cordova, Alaska. 

Entrance to the Cal Poly San Luis Obispo campus. In late May 2025, the Santa Maria Field Office officially relocated to San Luis Obispo, becoming the SLOFO. The office is now located in the newly built Tech Park II office building on the Cal Poly campus.

The kōlea, or Pacific Golden-Plover (Pluvialis fulva), is a familiar bird in Hawaiʻi that migrates to Alaska each summer to nest. 

Exterior of Cal Poly Technology Park II office. The office is now located in the newly built Tech Park II office building on the Cal Poly campus.

Pictured is the SLOFO team along with others from CAWSC. From left to right: Ed Reeves, Ben Glass, Gustavo Ruiz, Mark Dickman, Colleen Ritter, Daniel Monsalve, Geoff Cromwell, Jeanette Rainey, and James Solum.

Lettuce field in the Salinas River Valley. California’s Salinas Valley is one of the most productive agricultural basins in the world due to the fertile valley soil, temperate climate, and availability of water for irrigation.

Artichoke field in the Salinas River Valley. California’s Salinas Valley is one of the most productive agricultural basins in the world due to the fertile valley soil, temperate climate, and availability of water for irrigation. 

CAWSC Biogeochemistry group at 2025 IEP Workshop. Left to Right: Back Row - Maura Uebner, Keith Bouma-Gregson, Kyle Leathers; Middle Row - Crystal Sturgeon, Zoё Siman-Tov, Lane Bratz, Emily Richardson, Tamara Kraus, Alex Ryan; Front Row - Nick Framsted 

The photo shows members of the research team. From left to right: Tevin Bui (RCD), Jordan Buxton (USGS), Brett Mills (RCD), Alicia Ruan (RCD), and Brock Huntsman (USGS). Inset at right are Marissa Wulff (top) and Jeff Gronemyer (bottom), both of the USGS. 

Example of Santa Ana Sucker (Pantosteus santaanae) lure with a PIT tag attached.

CAWSC poster presenters at 2025 IEP Workshop. Clockwise from upper left: Anna Conlen, Elise Shea, Lex Thomas, Zoё Siman-Tov, Bryan Gopez, Emma Walker, David Hart, Maura Uebner, Lawrence Fujiwara, Trevor Violette.

Santa Ana Sucker (Pantosteus santaanae) being measured in PIT tag study done in the late summer and early fall of 2024.