Judith Z Drexler

Vegetation biomass and density from three locations in the Sacramento-San Joaquin Delta, California, 2017 to 2018

Vegetation type and density data were collected by the U.S. Geological Survey (USGS) Pacific Coastal and Marine Science Center at three locations in the Sacramento-San Joaquin Delta. Data were collected in Lindsey Slough in April 2017, and Middle River and the Mokelumne River in March 2018. Vegetation samples were collected by divers, and used to determine dry biomass density. These data were collected as part of a cooperative project, with the USGS California Water Science Center and the California Department of Fish and Wildlife, on the effects of invasive aquatic vegetation on sediment transport in the Sacramento-San Joaquin Delta.

Categories: Data; Tags: CMHRP, Coastal and Marine Hazards and Resources Program, Invasive Species, Lindsey Slough, Marsh, All tags... Middle River, Mokelumne River, PCMSC, Pacific Coastal and Marine Science Center, Sacramento-San Joaquin Delta, Sedimentation, State of California, Substrate, U.S. Geological Survey, USGS, aquatic ecosystems, botany, inland waters, invasive species, plant testing, plot sampling, specimen collecting, Fewer tags

Projected future habitat of coastal wetlands in the Nisqually River Delta, Washington

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...

Tags: Brackish Marsh, Emergent Tidal Wetland, Estuarine Coastal, Freshwater Tidal Marsh, High Salt Marsh, All tags... Low and Intermediate Salt Marsh, NWCASC, Nisqually, Northwest Climate Adaptation Science Center, Pierce, Thurston, Tidal Forest/Woodland, U.S. Geological Survey, USGS, Vegetated Tidal Flats, WGSC, Washington, Washington, Western Geographic Science Center, effects of climate change, Fewer tags

The Great Dismal Swamp (GDS) project is an application of USGS LandCarbon, at the US Fish and Wildlife Service's (FWS) Great Dismal Swamp National Wildlife Refuge (NWR), and is designed to produce local-scale carbon estimates (including fluxes, ecosystem balance, and long-term sequestration rate) to include in an ecosystem service assessment in support of Department of Interior (DOI) land management activities. The project will improve the understanding of the effects of past drainage, logging, farming, and management on carbon sequestration and fire risk in peatlands. Broad Science Questions: How are ecosystem services (including carbon sequestration, wildlife viewing, water quality, and others) impacted by management...

Categories: Project; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Atlantic White Cedar, Carbon Flux, Carbon Stock, Disturbance, Ecosystem Services, All tags... Freshwater forested wetland, Great Dismal Swamp, Great Dismal Swamp National Wildlife Refuge, Hydrology, LUCAS Model, Lateral West Fire, Mid-Atlantic Coastal Plain, Net Ecosystem Carbon Balance, Peatlands, Soil Carbon, Staging, State-and-transition simulation models, USGS, Wetlands, Fewer tags

This data release includes monitoring data collected by the U.S. Geological Survey (USGS) Humboldt Bay Water Quality and Salt Marsh Monitoring Project. The datasets include continuous water levels collected at a 6-minute timestep collected in two study marshes (Mad River and Hookton). Surface deposition, elevation changes and carbon storage (in marsh edge environments) measured in five USGS study marshes (Mad River, Manila, Jacoby, White and Hookton). The monitoring data presented in this data release represent fundamental datasets needed to manage blue carbon stocks, assess marsh vulnerability, inform SLR adaptation planning, and build coastal resiliency to climate change in Humboldt Bay, CA Additional documentaton...

Tags: California, Ecology, Hookton Slough, Hookton marsh, Humboldt Bay, All tags... Humboldt County, Jacoby marsh, Mad River Slough, Mad River marsh, Manila marsh, SET MH, Sedimentology, USGS Science Data Catalog (SDC), White Slough, White marsh, blue carbon, carbon storage, elevation change, estuarine processes, feldspar marker horizon, inundation, marsh accretion, marsh ecosystems, salt marsh, surface deposition, surface elevation table, Fewer tags

Final Report: Science to Inform the Management of Mangrove Ecosystems Undergoing Sea Level Rise at Ding Darling National Wildlife Refuge, Sanibel Island, Florida

J.N. “Ding” Darling National Wildlife Refuge (DDNWR) is located on Sanibel Island along the southwestern coast of Florida, USA. Sanibel Island is heavily developed, but DDNWR provides protection for a large mangrove area that supports biodiversity and recreational opportunity. However, nitrogen (N) and phosphorus (P) eutrophication attributed to agriculture discharge along the Caloosahatchee River has affected the area’s aquatic habitat with algal blooms and may be causing untimely degradation of Sanibel’s mangrove forests. We launched a series of studies to understand how additional nutrient loading to the levels expected in the future might affect DDNWR’s mangrove resource. We experimentally fertilized selected...

Categories: Publication; Types: Citation