Filters: Tags: Freshwater Tidal Marsh (X)
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This dataset consists of raster geotiff outputs from modeling vertical accretion and carbon accumulation in the Nisqually River Delta, Washington, USA. These rasters represent projections of future habitat type, change in surface elevation above Mean Sea Level, and total sediment carbon accumulation since 2011 in coastal wetland habitats. Projections were generated in 20-year increments for 100 years for five amounts of sea-level rise, three amounts of suspended sediment concentrations, and two alternative configurations of the U.S. Interstate-5 causeway as it crosses the Nisqually River to either prevent or allow inland habitat migration (a total of 30 scenarios). The full methods and results are described in detail...
This dataset consists of raster geotiff outputs from modeling vertical accretion and carbon accumulation in the Nisqually River Delta, Washington, USA. These rasters represent projections of future habitat type, change in surface elevation above Mean Sea Level, and total sediment carbon accumulation since 2011 in coastal wetland habitats. Projections were generated in 20-year increments for 100 years for five amounts of sea-level rise, three amounts of suspended sediment concentrations, and two alternative configurations of the U.S. Interstate-5 causeway as it crosses the Nisqually River to either prevent or allow inland habitat migration (a total of 30 scenarios). The full methods and results are described in detail...
Wind speed, wind direction (3D) and gas concentrations are measured at 10 Hz and statistically processed using the eddy covariance technique to half-hour estimates of flux rates of gas exchange between the ecosystem and atmosphere. Three gases were measured: carbon dioxide, methane and water vapor. Simultaneous measurements of environmental drivers are also measured and recorded as half-hourly values: photosynthetic photon flux density, downwelling and upwelling short and long wave radiation, air temperature, relative humidity and precipitation. Variable names and units follow AmeriFlux and FLUXNET standards. This site is a flotant herbaceous freshwater marsh in Salvador Wildlife Management Area near Luling, LA.
Vertical accretion and elevation change of marshes is a critical factor controlling marsh survival and adaptability to rising sea levels. A wide variety of existing methods have been employed to measure accretion and elevation change in marshes on time scales ranging from weeks to centuries on many individual marshes located throughout the coastal northeastern United States. This dataset is a compilation of marsh accretion and elevation change rates compiled from a total of 27 published studies and 3 data sets published from 1975 through 2021, yielding a total of 292 individual estimates of marsh accretion or elevation change. The database includes: measurements of marsh surface elevation change from repeat surveys...
Categories: Data;
Tags: Brackish Marsh,
Connecticut Coastal,
Freshwater Tidal Marsh,
High Salt Marsh,
Low and Intermediate Salt Marsh,
This dataset consists of raster geotiff outputs from modeling vertical accretion and carbon accumulation in the Nisqually River Delta, Washington, USA. These rasters represent projections of future habitat type, change in surface elevation above Mean Sea Level, and total sediment carbon accumulation since 2011 in coastal wetland habitats. Projections were generated in 20-year increments for 100 years for five amounts of sea-level rise, three amounts of suspended sediment concentrations, and two alternative configurations of the U.S. Interstate-5 causeway as it crosses the Nisqually River to either prevent or allow inland habitat migration (a total of 30 scenarios). The full methods and results are described in detail...
Projections of marsh elevation change with WARMER-2 across five regions of the San Francisco Bay Delta (Cache Yolo, South Delta, North Delta, Central Delta, and Suisun). The model was run across a range of initial elevations for each region and for scenarios of sea-level rise (30, 61, 91, 122, 152, 183, 305 cm by 2100), sediment availability (historic, constant, declining, and increase), and with and without a temporally dynamic tidal range. Results from the Delta Simulation Model 2 hydrodynamic model were used to calculate rates of tide range increase with sea-level rise. WARMER-2 was calibrated using soil cores from Callaway et al 2012 (Rush Ranch and Browns Island cores), and a soil core from Miners Slough. ...
Categories: Data;
Tags: Brackish Marsh,
Delta,
Emergent Tidal Marsh,
Freshwater Tidal Marsh,
San Francisco Bay,
A critical factor controlling marsh survival and adaptability to rising sea level is an adequate supply of sediment for supporting upward growth of marshes, yet sediment availability and the factors that control its delivery to marshes remain poorly constrained. This dataset includes the results of sediment trap deployments and accompanying water level recordings from 9 coastal salt marshes in the northeastern United States. Sediment traps were deployed seasonally, with individual spring, summer, and fall deployment periods over the course of 2020-2021. The distribution of study sites spans differences in tidal range, wave climate, sea surface temperature, and assemblages of marine organisms. Additionally, these...
Categories: Data;
Tags: Brackish Marsh,
Freshwater Tidal Marsh,
High Salt Marsh,
Low and Intermediate Salt Marsh,
Maine Coastal,
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