Noah Knowles
Noah Knowles is a Research Hydrologist with the USGS Water Resources Mission Area.
Science and Products
Filter Total Items: 31
Implications for future survival of delta smelt from four climate change scenarios for the Sacramento–San Joaquin Delta, California Implications for future survival of delta smelt from four climate change scenarios for the Sacramento–San Joaquin Delta, California
Changes in the position of the low salinity zone, a habitat suitability index, turbidity, and water temperature modeled from four 100-year scenarios of climate change were evaluated for possible effects on delta smelt Hypomesus transpacificus, which is endemic to the Sacramento–San Joaquin Delta. The persistence of delta smelt in much of its current habitat into the next century appears...
Authors
Larry R. Brown, William A. Bennett, R. Wayne Wagner, Tara Morgan-King, Noah Knowles, Frederick Feyrer, David H. Schoellhamer, Mark T. Stacey, Mike Dettinger
Projected evolution of California's San Francisco Bay-Delta-River System in a century of continuing climate change Projected evolution of California's San Francisco Bay-Delta-River System in a century of continuing climate change
Background Accumulating evidence shows that the planet is warming as a response to human emissions of greenhouse gases. Strategies of adaptation to climate change will require quantitative projections of how altered regional patterns of temperature, precipitation and sea level could cascade to provoke local impacts such as modified water supplies, increasing risks of coastal flooding...
Authors
James E. Cloern, Noah Knowles, Larry R. Brown, Daniel Cayan, Michael D. Dettinger, Tara L. Morgan, David H. Schoellhamer, Mark T. Stacey, Mick van der Wegen, R. Wayne Wagner, Alan D. Jassby
Projected evolution of California's San Francisco bay-delta-river system in a century of climate change Projected evolution of California's San Francisco bay-delta-river system in a century of climate change
Background: Accumulating evidence shows that the planet is warming as a response to human emissions of greenhouse gases. Strategies of adaptation to climate change will require quantitative projections of how altered regional patterns of temperature, precipitation and sea level could cascade to provoke local impacts such as modified water supplies, increasing risks of coastal flooding...
Authors
James E. Cloern, Noah Knowles, Larry R. Brown, Daniel R. Cayan, Michael D. Dettinger, Tara L. Morgan, David H. Schoellhamer, Mark T. Stacey, Mick Van der Wegen, R.W. Wagner, Alan D. Jassby
Potential Inundation due to Rising Sea Levels in the San Francisco Bay Region Potential Inundation due to Rising Sea Levels in the San Francisco Bay Region
An increase in the rate of sea level rise is one of the primary impacts of projected global climate change. To assess potential inundation associated with a continued acceleration of sea level rise, the highest resolution elevation data available were assembled from various sources and mosaicked to cover the land surfaces of the San Francisco Bay region. Next, to quantify high water...
Authors
Noah Knowles
High-Resolution Digital Terrain Models of the Sacramento/San Joaquin Delta Region, California High-Resolution Digital Terrain Models of the Sacramento/San Joaquin Delta Region, California
The U.S. Geological Survey (USGS) Western Region Geographic Science Center, in conjunction with the USGS Water Resources Western Branch of Regional Research, has developed a high-resolution elevation dataset covering the Sacramento/San Joaquin Delta region of California. The elevation data were compiled photogrammically from aerial photography (May 2002) with a scale of 1:15,000. The...
Authors
Tom Coons, Christopher E. Soulard, Noah Knowles
Temporal downscaling of decadal sediment load estimates to a daily interval for use in hindcast simulations Temporal downscaling of decadal sediment load estimates to a daily interval for use in hindcast simulations
In this study we used hydrologic proxies to develop a daily sediment load time-series, which agrees with decadal sediment load estimates, when integrated. Hindcast simulations of bathymetric change in estuaries require daily sediment loads from major tributary rivers, to capture the episodic delivery of sediment during multi-day freshwater flow pulses. Two independent decadal sediment...
Authors
N. K. Ganju, N. Knowles, D. H. Schoellhamer
Science and Products
Filter Total Items: 31
Implications for future survival of delta smelt from four climate change scenarios for the Sacramento–San Joaquin Delta, California Implications for future survival of delta smelt from four climate change scenarios for the Sacramento–San Joaquin Delta, California
Changes in the position of the low salinity zone, a habitat suitability index, turbidity, and water temperature modeled from four 100-year scenarios of climate change were evaluated for possible effects on delta smelt Hypomesus transpacificus, which is endemic to the Sacramento–San Joaquin Delta. The persistence of delta smelt in much of its current habitat into the next century appears...
Authors
Larry R. Brown, William A. Bennett, R. Wayne Wagner, Tara Morgan-King, Noah Knowles, Frederick Feyrer, David H. Schoellhamer, Mark T. Stacey, Mike Dettinger
Projected evolution of California's San Francisco Bay-Delta-River System in a century of continuing climate change Projected evolution of California's San Francisco Bay-Delta-River System in a century of continuing climate change
Background Accumulating evidence shows that the planet is warming as a response to human emissions of greenhouse gases. Strategies of adaptation to climate change will require quantitative projections of how altered regional patterns of temperature, precipitation and sea level could cascade to provoke local impacts such as modified water supplies, increasing risks of coastal flooding...
Authors
James E. Cloern, Noah Knowles, Larry R. Brown, Daniel Cayan, Michael D. Dettinger, Tara L. Morgan, David H. Schoellhamer, Mark T. Stacey, Mick van der Wegen, R. Wayne Wagner, Alan D. Jassby
Projected evolution of California's San Francisco bay-delta-river system in a century of climate change Projected evolution of California's San Francisco bay-delta-river system in a century of climate change
Background: Accumulating evidence shows that the planet is warming as a response to human emissions of greenhouse gases. Strategies of adaptation to climate change will require quantitative projections of how altered regional patterns of temperature, precipitation and sea level could cascade to provoke local impacts such as modified water supplies, increasing risks of coastal flooding...
Authors
James E. Cloern, Noah Knowles, Larry R. Brown, Daniel R. Cayan, Michael D. Dettinger, Tara L. Morgan, David H. Schoellhamer, Mark T. Stacey, Mick Van der Wegen, R.W. Wagner, Alan D. Jassby
Potential Inundation due to Rising Sea Levels in the San Francisco Bay Region Potential Inundation due to Rising Sea Levels in the San Francisco Bay Region
An increase in the rate of sea level rise is one of the primary impacts of projected global climate change. To assess potential inundation associated with a continued acceleration of sea level rise, the highest resolution elevation data available were assembled from various sources and mosaicked to cover the land surfaces of the San Francisco Bay region. Next, to quantify high water...
Authors
Noah Knowles
High-Resolution Digital Terrain Models of the Sacramento/San Joaquin Delta Region, California High-Resolution Digital Terrain Models of the Sacramento/San Joaquin Delta Region, California
The U.S. Geological Survey (USGS) Western Region Geographic Science Center, in conjunction with the USGS Water Resources Western Branch of Regional Research, has developed a high-resolution elevation dataset covering the Sacramento/San Joaquin Delta region of California. The elevation data were compiled photogrammically from aerial photography (May 2002) with a scale of 1:15,000. The...
Authors
Tom Coons, Christopher E. Soulard, Noah Knowles
Temporal downscaling of decadal sediment load estimates to a daily interval for use in hindcast simulations Temporal downscaling of decadal sediment load estimates to a daily interval for use in hindcast simulations
In this study we used hydrologic proxies to develop a daily sediment load time-series, which agrees with decadal sediment load estimates, when integrated. Hindcast simulations of bathymetric change in estuaries require daily sediment loads from major tributary rivers, to capture the episodic delivery of sediment during multi-day freshwater flow pulses. Two independent decadal sediment...
Authors
N. K. Ganju, N. Knowles, D. H. Schoellhamer