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In recent decades, Rocky Mountain accumulated snowpack levels have experienced rapid declines, yet long-term records of snowpack prior to the installation of snowpack observation stations in the early and mid 20th century are limited. To date, a small number of tree-ring based reconstructions of April 1 Snow Water Equivalent (SWE) in the northern Rocky Mountains have extended modern records of snowpack variability to ~1200 C.E. Carbonate isotope lake sediment records, provide an opportunity to further extend tree-ring based reconstructions through the Holocene, providing a millennial-scale temporal record that allows for an evaluation of multi-scale drivers of snowpack variability, from internal climate dynamics...
The numerical model is built using an high resolution (1m) idealized domain to test the implementation of lateral retreat formulations in the COAWST modeling framework. The lateral retreat is calculated within the model and is based on lateral wave thrust.
Categories: Data;
Types: NetCDF OPeNDAP Service;
Tags: barotropic_sea_water_x_velocity,
barotropic_sea_water_y_velocity,
coastal processes,
dataset,
mathematical modeling,
The idealized test domain is utilized to study vertical tracer mixing without the presence of advection terms. The tracer starts to mix under the application of a surface stress. The model results are intended to be accessed from the THREDDS data server available through the related external resources. The model NetCDF files are stored on this trusted digital repository to ensure backup and longevity of these data.
We used the Coupled Ocean-Atmosphere-Wave-Sediment Transport (COAWST; Warner and others, 2010) model to simulate ocean circulation, waves, and sediment transport in Barnegat Bay, New Jersey, during Hurricane Sandy. The simulation period was from October 27 to November 4, 2012. Initial conditions for the salinity and temperature fields in the domain were acquired from a 7-month simulation of the same domain (Defne and Ganju, 2018). We used a 2012 digital terrain model (Andrews and others, 2015) to prescribe the prestorm bathymetry. Wetting and drying was enabled, wave-current interaction was modeled with a boundary-layer formulation accounting for the apparent roughness of waves, and the vortex force formulation...
Categories: Data;
Types: Map Service,
NetCDF OPeNDAP Service,
OGC WMS Layer;
Tags: CMG_Portal,
Earth Science > Human Dimensions > Natural Hazards > Floods,
Earth Science > Oceans > Marine Sediments > Sediment Transport,
Earth Science > Oceans > Ocean Circulation > Ocean Currents,
Earth Science > Oceans > Ocean Temperature > Potential Temperature,
Transport of material in an estuary is important for water quality and hazards concern. We studied these processes in the Hudson River Estuary, located along the northeast coast of the U.S. using the COAWST numerical modeling system. A skill assessment of the COAWST model for the 3-D salinity structure of the estuary has been successfully studied in the past, and the present research extended that understanding to look at both physical and numerical mixing. The model grid extends from the south at the Battery, NY to the north in Troy, NY. The simulation is performed from March 25 to July 11, 2005 (111 days). For more information see: https://doi.org/10.5066/P95E8LAS.
Categories: Data;
Types: Map Service,
NetCDF OPeNDAP Service,
OGC WMS Layer;
Tags: CMG_Portal,
Earth Science > Human Dimensions > Natural Hazards > Floods,
Earth Science > Oceans > Marine Sediments >Sediment Transport,
Earth Science > Oceans > Ocean Circulation > Ocean Currents,
Earth Science > Oceans > Ocean Temperature > Potential Temperature,
The development of Submerged Aquatic Vegetation (SAV) growth model within the Coupled Ocean-Atmosphere-Wave-Sediment Transport (COAWST) model leads to a change in SAV biomass. The SAV biomass is computed from temperature, nutrient loading and light predictions obtained from coupled hydrodynamics (temperature), bio-geochemistry (nutrients) and bio-optical (light) models. In exchange, the growth of SAV sequesters or contributes nutrients from the water column and sediment layers. The presence of SAV modulates current and wave attenuation and consequently affects modelled sediment transport. The model of West Falmouth Harbor in Massachusetts, USA was simulated to study the seagrass growth/dieback pattern in a hypothetical...
Categories: Data;
Types: Map Service,
NetCDF OPeNDAP Service,
OGC WMS Layer;
Tags: CMG_Portal,
Earth Science > Human Dimensions > Natural Hazards > Floods,
Earth Science > Oceans > Marine Sediments >Sediment Transport,
Earth Science > Oceans > Ocean Circulation > Ocean Currents,
Earth Science > Oceans > Ocean Temperature > Potential Temperature,
This project acquired, federated and curated approximately one million new observations to the Avian Knowledge Network. These new observations, in addition to millions of existing records, were used to model the distribution and abundance of 26 species of land birds in the southern portion of the North Pacific Landscape Conservation Cooperative (NPLCC) region including CA, OR and WA. The models were based on climate and modeled vegetation.Using the models, maps were created showing the distribution and abundance of each species for current (late 20th century) conditions and projected the models to future conditions (2070) based on five regional climate models. The bird models were also used to create maps of conservation...
Categories: Data;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: 2011,
Academics & scientific researchers,
Assessenspecies migration,
BIOSPHERICINDICATORS,
CA-2,
This dataset represents the results (9/30/2008) of the Northeastern Aquatic Habitat Classification System (NAHCS) GIS map for streams and rivers. This classification focused on mapping a stream habitat types across 13 northeastern states (ME, NH, VT, MA, CT, RI, NY, NJ, PA, MD, DC, DE, VA, WV). Stream and river centerlines were extracted from the USGS National Hydrography Dataset Plus (NH-Plus) 2006 1:100,000 data. These reaches were attributed and placed into classes representing their biopysical setting in terms of stream size, gradient, and geology, and expected natural water temperature regime. Please see the attribute descriptions for more information on the variable thresholds and the summary taxonomy.
Categories: Data;
Types: ArcGIS REST Map Service,
ArcGIS Service Definition,
Downloadable,
Map Service;
Tags: Connecticut,
Delaware,
District of Columbia,
Hydrography,
Maine,
The Streams and Rivers Condition Index is a broad ecological system index that classifies the landscape’s streams and river catchments into condition categories. The classification of the landscape in this manner is used to measure the relative departure of current wildlife habitat conditions from desired conditions as defined by parcel-level wildlife managers and landscape planners. The purpose of the index is to help practitioners determine appropriate next actions in each catchment, especially when used in conjunction with relevant species information. There are four condition categories, or classes, which range from the most ideal habitat conditions to the least ideal habitat conditions.
Categories: Data;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: AI,
AI,
Aquatics,
Aquatics,
Data,
A climate-resilient conservation portfolio includes sites representative of all geophysical settings selected for their landscape diversity and local connectedness. We developed methods to identify such a portfolio. First, we mapped geophysical settings across the entire study area. Second, within each geophysical setting we located sites with diverse topography that were highly connected by natural cover. Third, we compared the identified sites with the current network of conservation lands and with The Nature Conservancy’s (TNC’s) portfolio of important biodiversity sites identified based on rare species and natural community locations.Using this information we noted geophysical settings that were underrepresented...
Categories: Data;
Types: ArcGIS REST Map Service,
ArcGIS Service Definition,
Downloadable,
Map Service;
Tags: Resilience,
climate resilience,
dataset,
geology,
landform diversity,
This data is a series of 150 100m resolution raster layers representing the sea level rise models for heights by 2100 ( 0.3m,0.5m,1.0m,1.5m,2.0m) under Low, Medium, and High senarios. The time of the models initialize at 2005 and continue for the years 2020,2030,2040,2050,2060,2070,2080,2090, and 2100. The CRS of the data is EPSG 6543 , North Carolina
A highly permeable landscape promotes resilience by facilitating range shifts and the reorganization of communities. Roads, development, dams, and other structures create resistance that interrupts or redirects movement and, therefore, lowers the permeability. Maintaining a connected landscape is the most widely cited strategy in the scientific literature for building resilience and has been suggested as an explanation for why there were few extinctions during the last period of comparable rapid climate change. This metric is an important component of resilience because it indicates whether a process is likely to be disrupted or how much access a species has to the micro-climates within its given neighborhood. ...
Categories: Data;
Types: ArcGIS REST Map Service,
ArcGIS Service Definition,
Downloadable,
Map Service;
Tags: Resilience,
climate resilience,
dataset,
local connectedness,
permeability,
The Coupled Ocean-Atmosphere-Wave-Sediment Transport (COAWST; Warner and others, 2019; Warner and others, 2010) model was used to simulate ocean circulation, waves, and sediment transport in Cape Cod Bay, MA. Larger scale simulations of the US East Coast (Warner and Kalra, 2022) were used to drive numerical grids covering the Gulf of Maine (~1000m resolution) with a two-way nested downscaled region into Cape Cod Bay (~250m resolution). Results were analyzed to investigate bay-scale dynamics of net transport, seafloor elevation changes, and net sediment fluxes. Those results were further used to drive a coastal scale grid that stretched along ~17km of the coast from the Cape Cod Canal to Sandy Neck Beach. This nearshore...
Categories: Data;
Types: Map Service,
NetCDF OPeNDAP Service,
OGC WMS Layer;
Tags: CMG_Portal,
Earth Science > Human Dimensions > Natural Hazards > Floods,
Earth Science > Oceans > Marine Sediments >Sediment Transport,
Earth Science > Oceans > Ocean Circulation > Ocean Currents,
Earth Science > Oceans > Ocean Temperature > Potential Temperature,
We used the Coupled Ocean-Atmosphere-Wave-Sediment Transport (COAWST; Warner and others, 2010) model to simulate ocean circulation, waves, and sediment transport in Barnegat Bay, New Jersey, during Hurricane Sandy. The simulation period was from October 27 to November 4, 2012. Initial conditions for the salinity and temperature fields in the domain were acquired from a 7-month simulation of the same domain (Defne and Ganju, 2018). We used a 2012 digital terrain model (Andrews and others, 2015) to prescribe the prestorm bathymetry. Wetting and drying was enabled, wave-current interaction was modeled with a boundary-layer formulation accounting for the apparent roughness of waves, and the vortex force formulation...
Categories: Data;
Types: Map Service,
NetCDF OPeNDAP Service,
OGC WMS Layer;
Tags: CMG_Portal,
Earth Science > Human Dimensions > Natural Hazards > Floods,
Earth Science > Oceans > Marine Sediments >Sediment Transport,
Earth Science > Oceans > Ocean Circulation > Ocean Currents,
Earth Science > Oceans > Ocean Temperature > Potential Temperature,
The idealized test domain involves the simulation of an idealized stratified esutary with a rectangular geometry along with tidal forcings and river input to analyze a time-dependent solution of tracer mixing. The model results are intended to be accessed from the THREDDS data server available through the related external resources. The model NetCDF files are stored on this trusted digital repository to ensure backup and longevity of these data.
The horizontal propagation of a 1-D tracer patch allows to verify the implementation of numerical mixing terms in the model anlong with comparing the effect of using different tracer advection schemes in the presence of a sharp front. The model results are intended to be accessed from the THREDDS data server available through the related external resources. The model NetCDF files are stored on this trusted digital repository to ensure backup and longevity of these data.
**Symbology has been adjusted by the Open Space Institute from The Nature Conservancy's original "Geophysical Settings, 2016 Eastern U.S. and Canada" dataset.** The geophysical settings are defined by their physical properties – geology, soil, and elevation - that correspond to differences in the flora and fauna they support. They also differ in ecological character, in their value for agriculture or mining, and how they have been developed by people. For example, the region’s high granite mountains are both largely intact and topographically complex, whereas low coastal sandplains are both more fragmented and relatively flat. The geophyical settings classification enabled us to compare resilience characteristics...
Categories: Data;
Types: ArcGIS REST Map Service,
ArcGIS Service Definition,
Downloadable,
Map Service;
Tags: Ecoregions,
Elevation,
Geology,
Geophysical Settings,
Resilience,
This raster, created in 2010, is output from the Geophysical Institute Permafrost Lab (GIPL) model and represents simulated mean annual ground temperature (MAGT) in Celsius, averaged across a decade, at the base of active layer or at the base of the seasonally frozen soil column. The file name specifies the decade the raster represents. For example, a file named MAGT_1980_1989.tif represents the decade spanning 1980-1989. Cell values represent simulated mean annual ground temperature (degree C) at the base of the active layer (for areas with permafrost) or at the base of the soil column that is seasonally frozen (for areas without permafrost). If the value of the cell is negative,the area has permafrost and the...
Cropland conversion is anticipated to continue westward from the Great Plains into the sagebrush (Artemisia spp.) biome – the most intact biome remaining in the conterminous United States. However, relatively little is known about the extent and risk of cropland conversion to sagebrush ecosystems and the landscape scale benefits of easements in averting loss of ecological function. Therefore, our goals were to 1) quantify the cropland area of the sagebrush biome, 2) identify where the highest quality sagebrush rangelands are most at risk to future cropland conversion, and 3) estimate the ecological benefits of conservation easements to adjacent public lands. We found that croplands span 14.4 million ha in the sagebrush...
Categories: Data;
Types: Downloadable,
GeoTIFF,
Map Service,
Raster;
Tags: AGRICULTURAL LANDS,
AGRICULTURAL LANDS,
ANTHROPOGENIC/HUMAN INFLUENCED ECOSYSTEMS,
ANTHROPOGENIC/HUMAN INFLUENCED ECOSYSTEMS,
BIOSPHERE,
This data is a series of 150 3m resolution integer raster layers representing 2010 and 2014 LiDAR - based Intersections with sea level rise models for heights by 2100 ( 0.3m,0.5m,1.0m,1.5m,2.0m) under Low, Medium, and High senarios. The time of the models initialize at 2005 and continue for the years 2020,2030,2040,2050,2060,2070,2080,2090, and 2100. The CRS of the data is EPSG 6543 , North Carolina State Plane Feet NAD83(2011) units feet. NOAA 3m reolution elevation data for coastal NC and SE Virginia were aggregated to a single raster layer and reprojected to EPSG 6543. Elevations of the DEM data were adjusted to MHHW using the MHHW adjustment data provided by NOAA. Raster algebra was used to select the areas...
Categories: Data;
Tags: climatologyMeteorologyAtmosphere,
climatologyMeteorologyAtmosphere,
elevation,
elevation,
geoscientificInformation,
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