Filters: partyWithName: Karen M Thorne (X) > Types: Map Service (X)

Filters Date Range Past year (5) Past month (1) Past week (0) Past day (0) Custom range... To   Search Extensions ArcGIS Service Definition (8) Project (4) Raster (3) Budget (2) Citation (1) Expando (1) Types Downloadable (9) ArcGIS REST Map Service (8) ArcGIS Service Definition (8) OGC WFS Layer (6) OGC WMS Layer (6) More... Contacts Kevin J Buffington U.S. Geological Survey - ScienceBase Ecosystems Western Ecological Research Center Glenn R Guntenspergen More... Categories Data (9) Project (5) Data Release - Revised (1) Publication (1) Tag Types Theme (10) Place (10) Keyword (1) CMS Topics (4) CMS Themes (4) Science Themes (5) Water, Coasts and Ice (5) More... Tag Schemes https://www.sciencebase.gov/vocab/category/NCCWSC/Keyword (1) Common geographic names (1) https://www.sciencebase.gov/vocab/category/WRET/CMS_Topics/CASC_CMS_Topics (4) USGS Thesaurus (8) https://www.sciencebase.gov/vocab/category/WRET/CMS_Themes/CASC_CMS_Themes (4) Marine Realms Information Bank (MRIB) keywords (6) None (1) More... View Results as: JSON ATOM CSV

Multi-Decadal Simulation of Marsh Topography Under Sea Level Rise and Episodic Sediment Loads Abstract Coastal marsh within Mediterranean climate zones is exposed to episodic watershed runoff and sediment loads that occur during storm events. Simulating future marsh accretion under sea level rise calls for attention to: (a) physical processes acting over the time scale of storm events and (b) biophysical processes acting over time scales longer than storm events. Using the upper Newport Bay in Southern California as a case study, we examine the influence of event-scale processes on simulated change in marsh topography by comparing: (a) a biophysical model that integrates with an annual time step and neglects event-scale processes (BP-Annual), (b) a physical model that resolves event-scale processes but... Categories: Publication; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service LEAN-Corrected DEM for Suisun Marsh Lidar-derived digital elevation models often contain a vertical bias due to vegetation. In areas with tidal influence the amount of bias can be ecologically significant, for example, by decreasing the expected inundation frequency. We generated a corrected digital elevation mode (DEM) for Suisun marsh using a modification of the Lidar Elevation Adjustment with NDVI (LEAN) technique (Buffington et al. 2016). GPS survey data (6912 points, collected across public and private land in 2018), Normalized Difference Vegetation Index (NDVI) derived from an airborne multispectral image (June 2018), a 1 m lidar DEM from September 2018, and a 1 m canopy surface model were used to generate models of predicted bias across the... Categories: Data, Data Release - Revised; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Remote Sensing, San Francisco Bay Estuary, Suisun marsh, USGS Science Data Catalog (SDC), digital elevation models, All tags... elevation, estuary, lidar, wetlands, Fewer tags LEAN-corrected San Francisco Bay Digital Elevation Model, 2018 Lidar-derived digital elevation models often contain a vertical bias due to vegetation. In areas with tidal influence the amount of bias can be ecologically significant, for example, by decreasing the expected inundation frequency. We generated a corrected digital elevation mode (DEM) for tidal marsh areas around San Francisco Bay using the Lidar Elevation Adjustment with NDVI (LEAN) technique (Buffington et al. 2016). Survey-grade GPS survey data (6614 points), NAIP-derived Normalized Difference Vegetation Index, and original 1 m lidar DEM from 2010 were used to generate a model of predicted bias across tidal marsh areas. The predicted bias was then subtracted from the original lidar DEM and merged with the NOAA... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, GeoTIFF, Map Service, Raster; Tags: Remote Sensing, San Francisco Bay, USGS Science Data Catalog (SDC), biota, digital elevation models, All tags... estuary, lidar, wetlands, Fewer tags The Impact of Sea-Level Rise on Coral Reef and Mangrove Interactions and the Resulting Coastal Flooding Hazards Ecosystems such as coral reefs and mangroves provide an effective first line of defense against coastal hazards and represent a promising nature-based solution to adapt to sea-level rise. In many areas, coral reefs cause waves to break and lose energy, allowing for sediment to accumulate on the inshore portion of reef flats (i.e. the shallowest, flattest part of a reef) and mangroves to establish. Mangroves cause further attenuation (i.e. energy loss) waves and storm surge as water moves through roots and trunks of the trees. Together, these ecosystems provide valuable protection from coastal flooding, but is unclear how this protection may be affected by sea-level rise. An assessment of future sea-level rise vulnerability... Categories: Project; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: 2020, CASC, Coral Reefs, Coral Reefs, Data Visualization & Tools, All tags... Data Visualization & Tools, Drought, Fire and Extreme Weather, Drought, Fire and Extreme Weather, Forests, Forests, Landscapes, Landscapes, Other Landscapes, Other Landscapes, Pacific Islands, Pacific Islands, Pacific Islands CASC, Projects by Region, Projects by Region, Science Tools for Managers, Science Tools for Managers, Sea-Level Rise and Coasts, Sea-Level Rise and Coasts, Water, Coasts and Ice, Water, Coasts and Ice, Wetlands, Wetlands, Fewer tags LEAN-Corrected Collier County DEM for wetlands Lidar-derived digital elevation models often contain a vertical bias due to vegetation. In areas with tidal influence the amount of bias can be ecologically significant, for example, by decreasing the expected inundation frequency. We generated a corrected digital elevation model (DEM) for wetlands throughout Collier county using a modification of the Lidar Elevation Adjustment with NDVI (LEAN) technique (Buffington et al. 2016). GPS survey data (15,223 points), NAIP-derived Normalized Difference Vegetation Index (2010), a 10 m lidar DEM from 2007, and a 10 m canopy surface model were used to generate a model of predicted bias across marsh, mangrove, and cypress habitats. The predicted bias was then subtracted from... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, GeoTIFF, Map Service, Raster; Tags: Collier county, Remote Sensing, USGS Science Data Catalog (SDC), biota, cypress, All tags... digital elevation models, estuary, lidar, mangroves, marsh, wetlands, Fewer tags Fate of Endangered Species in San Francisco Bay Tidal Marshes with Sea-Level Rise The San Francisco Bay estuary contains the largest remaining expanse of tidal salt marshes in the western U.S. These marshes are home to a variety of federal and state protected species, such as the California clapper rail, California black rail, and the salt marsh harvest mouse. The estuary is also located on the Pacific Flyway, and is an important site for migrating and wintering birds. As climate conditions change, these salt marshes face a number of threats, including accelerated rates of sea-level rise, shifting precipitation, erosion, and more frequent and intense storms. Seas in the San Francisco Bay estuary have been rising 2.2 centimeters per decade, and could rise by as much as 1.24 meters by 2100, according... Categories: Project; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: 2008, CASC, Completed, National CASC, National CASC, All tags... Projects by Region, Science Tools for Managers, Science Tools for Managers, Sea-Level Rise and Coasts, Sea-Level Rise and Coasts, Social Science, Social Science, State of the Science, Water, Coasts and Ice, Water, Coasts and Ice, Wetlands, Wetlands, Fewer tags Blackwater LEAN-Corrected Chesapeake Bay Digital Elevation Models, 2019 Lidar-derived digital elevation models often contain a vertical bias due to vegetation. In areas with tidal influence the amount of bias can be ecologically significant, for example, by decreasing the expected inundation frequency. We generated a corrected digital elevation model (DEM) for the area surrounding Blackwater National Wildlife Refuge in Chesapeake Bay using a modification of the Lidar Elevation Adjustment with NDVI (LEAN) technique (Buffington et al. 2016). GPS survey data (3699 points, collected across four tidal marsh sites in Chesapeake Bay (Eastern Neck, Martin, Bishops Head, and Blackwater) in 2010 and 2017. Normalized Difference Vegetation Index (NDVI) derived from an airborne multispectral image... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Chesapeake Bay, biota, digital elevation models, estuary, lidar, All tags... wetlands, Fewer tags Effects of Sea-Level Rise and Extreme Storms on California Coastal Habitats: Part 1 In California, the near-shore area where the ocean meets the land is a highly productive yet sensitive region that supports a wealth of wildlife, including several native bird species. These saltmarshes, mudflats, and shallow bays are not only critical for wildlife, but they also provide economic and recreational benefits to local communities. Today, sea-level rise, more frequent and stronger storms, saltwater intrusion, and warming water temperatures are among the threats that are altering these important habitats. To support future planning and conservation of California’s near-shore habitats, researchers examined current weather patterns, elevations, tides, and sediments at these sites to see how they affect... Categories: Project; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: 2012, Bolinas Lagoon, CA, CASC, California, All tags... Coastal, Coastal Habitats, Completed, Drought, Fire and Extreme Weather, Drought, Fire and Extreme Weather, Extreme Weather, Extreme Weather, Federal, Humboldt Bay, Morro Bay, Newport Bay, Projects by Region, Pt. Mugu, SF Bay/Delta, San Pablo Bay, Sea-Level Rise and Coasts, Sea-Level Rise and Coasts, Southwest, Southwest CASC, Tijuana River, Water, Coasts and Ice, Water, Coasts and Ice, animals, assessment, birds, climate change, coastal, conservation, dem, downscale, dynamical, gcm, geomorphology, gis, hydrology, intertidal, management, marsh, model, multiple, nearshore, plants, sea level rise, sediment, sf bay, shoals, slr, storm, tidal, vegetation, vulnerability, wrf, Fewer tags Digital Elevation Models for eight study areas in coastal Oregon and Washington, 2012 To assess the current topography of tidal marsh at the study sites we conducted survey-grade global positioning system (GPS) surveys between 2009 and 2014 using a Leica RX1200 Real Time Kinematic (RTK) rover (±1 cm horizontal, ±2 cm vertical accuracy; Leica Geosystems Inc., Norcross, GA; Figure 4). At sites with RTK GPS network coverage (Padilla, Port Susan, Nisqually, Siletz, Bull Island, and Bandon), rover positions were received in real time from the Leica Smartnet system via a CDMA modem (www.lecia-geosystems.com). At sites without network coverage (Skokomish, Grays Harbor, and Willapa), rover positions were received in real time from a Leica GS10 antenna base station via radio link. At sites where we used the... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Bandon, Bull Island, Coos Bay, Grays Harbor, NWCASC, All tags... Nisqually, Northwest CASC, Oregon, Pacific Northwest, Padilla, Port Susan, Sea-Level Rise and Coasts, Siletz, Skokomish, Washington, Water, Coasts and Ice, Wetlands, Willapa, digital elevation model, salt marsh, Fewer tags Effects of Sea-Level Rise and Extreme Storms on California Coastal Habitats: Part 2 In California, the near-shore area where the ocean meets the land is a highly productive yet sensitive region that supports a wealth of wildlife, including several native bird species. These saltmarshes, mudflats, and shallow bays are not only critical for wildlife, but they also provide economic and recreational benefits to local communities. Today, sea-level rise, more frequent and stronger storms, saltwater intrusion, and warming water temperatures are among the threats that are altering these important habitats. Much of the existing research on anticipating the effects of changing conditions on coastal ecosystems relies on global or regional scale data, meaning that the detailed information necessary for local-scale... Categories: Project; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: 2014, Birds, Birds, CASC, Completed, All tags... Drought, Fire and Extreme Weather, Drought, Fire and Extreme Weather, Extreme Weather, Extreme Weather, Plants, Plants, Projects by Region, Sea-Level Rise and Coasts, Sea-Level Rise and Coasts, Southwest, Southwest CASC, Water, Coasts and Ice, Water, Coasts and Ice, Wetlands, Wetlands, Wildlife and Plants, Wildlife and Plants, Fewer tags Estuarine vegetated wetland change scenarios for estuaries in the conterminous United States, 1996–2019 This data release contains land cover-derived statistics regarding estuarine vegetated wetland area change within estuary drainage areas along the conterminous U.S. This dataset includes net change in estuarine vegetated wetland area based on National Oceanic and Atmospheric Administration's (NOAA) Coastal Change Assessment Program (C-CAP) 1996 and 2016 land cover data. Net change was assessed between estuarine vegetated wetlands (i.e., estuarine marshes, mangroves, non-mangrove estuarine woody wetlands, and salt pannes, depending on vegetation coverage and type) and the following other landcover classes: 1) water; 2) unconsolidated shore; 3) freshwater woody wetlands; 4) freshwater marsh; 5) upland; and 6) agriculture.... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Alabama, Atlantic, California, Connecticut, Delaware, All tags... District of Columbia, Ecology, Emergent Wetland, Estuarine Coastal, Florida, Forested Wetland, Geomorphology, Georgia, Gulf of Mexico, Land Use Change, Louisiana, Maine, Maryland, Massachusetts, Mississippi, New Hampshire, New Jersey, New York, North Carolina, Oregon, Pacific, Pennsylvania, Remote Sensing, Rhode Island, South Carolina, Texas, USGS Science Data Catalog (SDC), Virginia, Washington, biota, coastal processes, effects of climate change, environment, imageryBaseMapsEarthCover, land use and land cover, marsh ecosystems, remote sensing, sea-level rise, wetland ecosystems, Fewer tags Mangrove Forest Digital Elevation Model for Pohnpei, Federated States of Micronesia, 2019 Surface elevation of the mangrove forest is important for understanding current and future vulnerability to sea-level rise. Due to the lack of LiDAR data and insufficient accuracy of space-borne synthetic aperture radar-derived elevation models, we leveraged data from differential leveling surveys to generate a digital elevation model (DEM) for the mangrove forest of Pohnpei. We created a general slope model with a shore-normal transect of elevation and a general additive model (GAM) spine. To create a continuous DEM, the GAM spline was then stretched across a grid representing the width of mangrove, created using digitized boundaries of the seaward and interior mangrove edge. This simplified approach assumes that... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Pacific Ocean, Pohnpei, Senyavin Islands, Tidal Mangrove Forest, digital elevation model, All tags... environment, Fewer tags Nisqually NWR Carbon This research focuses on assessing large scale tidal marsh restoration for the carbon co-benefits of foodweb support and carbon sequestration potential. By assessing wildlife co-benefits with carbon accounting, this project will link traditional objectives of protecting, restoring, and managing diverse wetlands to support habitats and species with carbon dynamics and sequestration. This study addresses interconnected C processes and dynamics including: * Identify carbon sources that support Chinook foodwebs * Compare to the carbon sources that are stored in peat * Determining Net Ecosystem Carbon Balance within in a reference and restored marsh * Evaluate land use and vegetation change over time * Assessing... Categories: Project; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Carbon flux, Food web, Modeling, Nisqually River Delta, Staging, All tags... Wetland restoration, Wetlands, Fewer tags Eastern Neck LEAN-Corrected Chesapeake Bay Digital Elevation Models, 2019 Lidar-derived digital elevation models often contain a vertical bias due to vegetation. In areas with tidal influence the amount of bias can be ecologically significant, for example, by decreasing the expected inundation frequency. We generated a corrected digital elevation model (DEM) for the area surrounding the Eastern Neck National Wildlife Refuge in Chesapeake Bay using a modification of the Lidar Elevation Adjustment with NDVI (LEAN) technique (Buffington et al. 2016). GPS survey data (3699 points, collected across four tidal marsh sites in Chesapeake Bay (Eastern Neck, Martin, Bishops Head, and Blackwater) in 2010 and 2017. Normalized Difference Vegetation Index (NDVI) derived from an airborne multispectral... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Chesapeake Bay, biota, digital elevation models, estuary, lidar, All tags... wetlands, Fewer tags Martin LEAN-Corrected Chesapeake Bay Digital Elevation Models, 2019 Lidar-derived digital elevation models often contain a vertical bias due to vegetation. In areas with tidal influence the amount of bias can be ecologically significant, for example, by decreasing the expected inundation frequency. We generated a corrected digital elevation model (DEM) for area surrounding the Martin National Wildlife Refuge in Chesapeake Bay using a modification of the Lidar Elevation Adjustment with NDVI (LEAN) technique (Buffington et al. 2016). GPS survey data (3699 points, collected across four tidal marsh sites in Chesapeake Bay (Eastern Neck, Martin, Bishops Head, and Blackwater) in 2010 and 2017. Normalized Difference Vegetation Index (NDVI) derived from an airborne multispectral image (2013)... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Chesapeake Bay, biota, digital elevation models, estuary, lidar, All tags... wetlands, Fewer tags