How will sea level rise impact coastal ecosystems like salt marshes? Will plant species change and shift available habitat for local wildlife? Or will the marsh be completely inundated? USGS scientists are conducting extensive elevation and habitat surveys along the U.S. Pacific Coast, and using the data to model sea level rise impact for the next 100 years.
Arrowhead Marsh is located in central San Francisco Bay and covers 17 hectares. We surveyed 274 elevation points and 50 vegetation plots to determine baseline conditions of the marsh. Water level loggers deployed in 2010 were used to characterize the tidal inundation patterns throughout the year. Sediment accretion rates from soil cores at China Camp State Park were extrapolated to Arrowhead and used as input for the WARMER sea-level rise response model. WARMER projects that by 2040 Arrowhead marsh will be dominated by low marsh vegetation and will transition into mudflat habitat by 2080.
ARROWHEAD MARSH
Sources/Usage: Some content may have restrictions. View Media Details
Sources/Usage: Some content may have restrictions. View Media Details
Sources/Usage: Some content may have restrictions. View Media Details
To download the Arrowhead PDF Summary Report (Arrowhead appendix from USGS Open-File Report Final report for sea-level rise response modeling for San Francisco Bay estuary tidal marshes):
The referenced media source is missing and needs to be re-embedded.
Projected sea-level rise at Arrowhead Marsh. Dark blue represents mean high water level, light blue is mean sea level. The marsh platform is accreting a constant 1.9 mm/yr, sea level rises 0.4 m by 2050 and 1.0 meter by 2100.
Sea-level Rise Scenario for San Francisco Bay Estuary - Arrowhead Marsh
How will sea level rise impact coastal ecosystems like salt marshes? Will plant species change and shift available habitat for local wildlife? Or will the marsh be completely inundated? USGS scientists are conducting extensive elevation and habitat surveys along the U.S. Pacific Coast, and using the data to model sea level rise impact for the next 100 years.
Arrowhead Marsh is located in central San Francisco Bay and covers 17 hectares. We surveyed 274 elevation points and 50 vegetation plots to determine baseline conditions of the marsh. Water level loggers deployed in 2010 were used to characterize the tidal inundation patterns throughout the year. Sediment accretion rates from soil cores at China Camp State Park were extrapolated to Arrowhead and used as input for the WARMER sea-level rise response model. WARMER projects that by 2040 Arrowhead marsh will be dominated by low marsh vegetation and will transition into mudflat habitat by 2080.
ARROWHEAD MARSH
Sources/Usage: Some content may have restrictions. View Media Details
Sources/Usage: Some content may have restrictions. View Media Details
Sources/Usage: Some content may have restrictions. View Media Details
To download the Arrowhead PDF Summary Report (Arrowhead appendix from USGS Open-File Report Final report for sea-level rise response modeling for San Francisco Bay estuary tidal marshes):
The referenced media source is missing and needs to be re-embedded.
Projected sea-level rise at Arrowhead Marsh. Dark blue represents mean high water level, light blue is mean sea level. The marsh platform is accreting a constant 1.9 mm/yr, sea level rises 0.4 m by 2050 and 1.0 meter by 2100.
Sea-level Rise Scenario for San Francisco Bay Estuary - Arrowhead Marsh
How will sea level rise impact coastal ecosystems like salt marshes? Will plant species change and shift available habitat for local wildlife? Or will the marsh be completely inundated? USGS scientists are conducting extensive elevation and habitat surveys along the U.S. Pacific Coast, and using the data to model sea level rise impact for the next 100 years.
How will sea level rise impact coastal ecosystems like salt marshes? Will plant species change and shift available habitat for local wildlife? Or will the marsh be completely inundated? USGS scientists are conducting extensive elevation and habitat surveys along the U.S. Pacific Coast, and using the data to model sea level rise impact for the next 100 years.