Screenshot of the NWIS Mapper showing location of sites in Nevada where samples of groundwater were collected to evaluate arsenic speciation.
Multimedia
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Images
NWIS Mapper Arsenic Sites Nevada
Screenshot of the NWIS Mapper showing location of sites in Nevada where samples of groundwater were collected to evaluate arsenic speciation.
2023 Tahoe Summit crowd
Audience at Tahoe summit, Wednesday, August 9, 2023. With Sen. Alex Padilla as event host.
Audience at Tahoe summit, Wednesday, August 9, 2023. With Sen. Alex Padilla as event host.
USGS Booth at 2023 Tahoe Summit
USGS Booth at 2023 Tahoe Summit - Wednesday, August 9th, 2023, with host Sen. Alex Padilla
USGS Booth at 2023 Tahoe Summit - Wednesday, August 9th, 2023, with host Sen. Alex Padilla
Cover - 2023 Lake Tahoe Summit Info Sheet
Cover - 2023 Lake Tahoe Summit Info Sheet. Title: 2023 Lake Tahoe Water Monitoring and Research Activities
Cover - 2023 Lake Tahoe Summit Info Sheet. Title: 2023 Lake Tahoe Water Monitoring and Research Activities
Gwendolyn Davies
This is an image for the staff profile for Gwendolyn Davies, Hydrologist, USGS
This is an image for the staff profile for Gwendolyn Davies, Hydrologist, USGS
Mason Valley, Nevada
Agriculture fields in Mason Valley, Nevada. This area was studied for a Scientific Investigations Report 2022-5123.
Agriculture fields in Mason Valley, Nevada. This area was studied for a Scientific Investigations Report 2022-5123.
Videos
What Does a USGS Hydrologic Technician Do
What do USGS Hydrologic Technicians do on the job? This video features five different Hydrologic Technicians from Washington Water Science Center and Nevada Water Science Center sharing some of their work. This video was sponsored by the USGS Hydrologic Data Advisory Committee.
What do USGS Hydrologic Technicians do on the job? This video features five different Hydrologic Technicians from Washington Water Science Center and Nevada Water Science Center sharing some of their work. This video was sponsored by the USGS Hydrologic Data Advisory Committee.
Surveying High-Water Marks and Cross-Sections for Indirects
This video describes how to survey high-water marks and cross-sections for indirect measurements. Included are tips and tricks for getting across non-wadeable sections of the stream.
This video describes how to survey high-water marks and cross-sections for indirect measurements. Included are tips and tricks for getting across non-wadeable sections of the stream.
Selection of Roughness Coefficients
This video describes the field selection of roughness coefficients, or Manning's "n" values. Both the comparative (photos) and analytical (Cowan's) methods are discussed.
This video describes the field selection of roughness coefficients, or Manning's "n" values. Both the comparative (photos) and analytical (Cowan's) methods are discussed.
Plotting High-Water Marks in the Field Using SAC-GUI
This video describes how to use SAC-GUI in the field to plot high-water mark profiles. Plotting high-water marks in the field is required for most indirect measurement techniques
This video describes how to use SAC-GUI in the field to plot high-water mark profiles. Plotting high-water marks in the field is required for most indirect measurement techniques
Theory of the Slope-Area Method
This video covers the theory behind a slope-area indirect measurement, the most common type of indirect measurement used in the USGS.
This video covers the theory behind a slope-area indirect measurement, the most common type of indirect measurement used in the USGS.
Surveying Slope-Area Measurements
This video goes into detail about where to flag high-water marks and how to survey a slope-area measurement. A simple one-setup Total Station survey is demonstrated.
This video goes into detail about where to flag high-water marks and how to survey a slope-area measurement. A simple one-setup Total Station survey is demonstrated.