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This dataset includes Snow Days(sdys) for northern Alaska in GeoTiff format, covering the years 1980-2012. Snow Days is defined as number of days in core snow period(days). The core snow season is defined to be the longest period of continuous snow cover in each year. The dataset was generated by the Arctic LCC SNOWDATA: Snow Datasets for Arctic Terrestrial Applications project.The dataset is delivered in the ZIP archive file format. Each year is output in a separate GeoTiff file, where the year is indicated by the filename.Over the last 20 years, under a variety of NOAA, NSF, and NASA research programs, a snow-evolution modeling system has been developed that includes the MicroMet micrometeorological model, the...
Categories: Data;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: AIR TEMPERATURE,
AIR TEMPERATURE,
ALBEDO,
ALBEDO,
Academics & scientific researchers,
This dataset includes Rain Precipitation(rpre) for northern Alaska in GeoTiff format, covering the years 1980-2012. Rain Precipitation is defined as (m/yr). The dataset was generated by the Arctic LCC SNOWDATA: Snow Datasets for Arctic Terrestrial Applications project.The dataset is delivered in the ZIP archive file format. Each year is output in a separate GeoTiff file, where the year is indicated by the filename.Over the last 20 years, under a variety of NOAA, NSF, and NASA research programs, a snow-evolution modeling system has been developed that includes the MicroMet micrometeorological model, the SnowModel snow-process model, and the SnowAssim data assimilation model. These modeling tools can be thought of...
Categories: Data;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: AIR TEMPERATURE,
AIR TEMPERATURE,
ALBEDO,
ALBEDO,
Academics & scientific researchers,
The cascade of uncertainty that underscores climate impact assessments of regional hydrology undermines their value for long-term water resources planning and management. This study presents a statistical framework that quantifies and propagates the uncertainties of hydrologic model response through projections of future streamflow under climate change. Different sources of hydrologic model uncertainty are accounted for using Bayesian modeling. The distribution of model residuals is formally characterized to quantify predictive skill, and Markov chain Monte Carlo sampling is used to infer the posterior distributions of both hydrologic and error model parameters. Parameter and residual error uncertainties are integrated...
Categories: Data,
Publication;
Types: Citation;
Tags: AQUATIC ECOSYSTEMS,
AQUATIC SCIENCES,
CLIMATE CHANGE IMPACT ASSESSMENT MODELS,
CONSERVATION,
Completed,
The proposed project focuses upon two major goals:1. Designate Priority Amphibian and Reptile Conservation Areas (PARCAs) in the South Atlantic Landscape, and develop an adaptive management plan for those areas.2. Determine whether PARCAs provide an effective strategy for integrated, long-term conservation of biodiversity and cultural resources in the South Atlantic Landscape; and develop a comprehensive biodiversity protection plan for the SALCC.To achieve these goals, we have identified the following objectives:Objective 1. Identify areas within the SALCC that are vitally important to preserving the rich diversity of amphibians and reptiles in the region, focusing upon rare species distribution, diversity, and...
Categories: Data,
Project;
Types: ArcGIS REST Map Service,
ArcGIS Service Definition,
Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: 2011,
2012,
2013,
ANTHROPOGENIC/HUMAN INFLUENCED ECOSYSTEMS,
AQUATIC ECOSYSTEMS,
Marshes are a critical habitat for a diversity of fauna and the ecological functioning of the coast. Despite their renowned vulnerability, uncertainty of wetland responses to sea-level rise remains a pervasive concern in coastal science and management, particularly for coastal resource conservation and climate change adaptation. Inventorying and mapping marsh dynamics have emerged as high priorities for assessing regional vulnerability to sea-level rise, requiring synthesis of existing marsh habitat maps, improved methodology for their continual monitoring, and assessment of their vulnerability with modeling and analysis. Multispectral remote sensing (balloon-, airplane- and satellite-based), LiDAR, NWI wetland...
Categories: Data,
Project;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: 2012,
2013,
2014,
ANTHROPOGENIC/HUMAN INFLUENCED ECOSYSTEMS,
AQUATIC ECOSYSTEMS,
Intermontane basins in the Trans-Pecos region of westernmost Texas and northern Chihuahua, Mexico, are target areas for disposal of interstate municipal sludge and have been identified as possible disposal sites for low-level radioactive waste. Understanding ground water movement within and between these basins is needed to assess potential contaminant fate and movement. Four associated basin aquifers are evaluated and classified; the Red Light Draw Aquifer, the Northwest Eagle Flat Aquifer, the Southeast Eagle Flat Aquifer, and the El Cuervo Aquifer. Encompassed on all but one side by mountains and local divides, the Red Light Draw Aquifer has the Rio Grande as an outlet for both surface drainage and ground water...
Categories: Publication;
Types: Citation,
Journal Citation;
Tags: Classification,
Geological Phenomena,
Geology,
Ground Water,
Mexico,
A field experiment consisting of geophysical logging and tracer testing was conducted in a single well that penetrated a sand-and-gravel aquifer at the U.S. Geological Survey Toxic Substances Hydrology research site on Cape Cod, Massachusetts. Geophysical logs and flowmeter/pumping measurements were obtained to estimate vertical profiles of porosity phi, hydraulic conductivity K, temperature, and bulk electrical conductivity under background, freshwater conditions. Saline-tracer fluid was then injected into the well for 2 h and its radial migration into the surrounding deposits was monitored by recording an electromagnetic-induction log every 10 min. The field data are analyzed and interpreted primarily through...
Categories: Publication;
Types: Citation;
Tags: Models,
Porosity,
Silicon Dioxide,
Theoretical,
Water
The permafrost module of the Alaska Integrated Ecosystem Model (AIEM) is used to establish high spatial resolution scenario of changes in permafrost characteristics in the Alaskan Arctic in response to projected climate change. Retrospective modeling was performed for the 1901-2009 period using the high resolution CRU TS3.1 climate forcing from the Scenario Network for Alaska Planning (SNAP). To predict future changes in permafrost in natural conditions, a five model composite climate forcing (2006-2100) under the Representative Concentration Pathways (RCP) 4.5 scenario is utilized. In particular, the temperature and precipitation of models (NCAR-CCSM4, GFDL-CM3, GISS-E2R, IPSL-CM5A-LR, and MRI-CGCM3) are considered....
Categories: Data;
Types: NetCDF OPeNDAP Service;
Tags: Permafrost,
active layer,
climatologyMeteorologyAtmosphere,
dataset,
models,
Natural resource management requires decision making in the face of uncertain future conditions. Climate change has been identified by our partnership as a high-priority threat to grasslands and all of our priority habitats, affecting water availability, species composition, species interactions, phenology, and other factors. Climate change is understood to be a factor in nearly all natural resource issues, but managers find it difficult to plan for climate change because of high levels of uncertainty. Multiple Global Climate Models (GCMs), CO2 emission scenarios, downscaling methods, and combinations of these compound our uncertainty. Natural resource managers need a simple way to evaluate climate-driven changes...
This project engaged several Western Alaska coastal communities to describe types and formation processes associated with near-shore sea-ice phenomena during the fall freeze-up season, in particular as relevant to coastal erosion, flooding, and shoreline protection. Commentary and indigenous and local observations were drawn from and analyzed through existing community observing programs (SIZONet and ANTHC-LEO) as well as from new interviews and meetings conducted for this project. Extensive work was performed to summarize, assess, and synthesize written and recorded observations and commentary. A primary result was identification of a range of slush-ice berm events that could be broadly categorized as “advective”...
The western coastline of Alaska is highly susceptible to coastal storms, which can cause coastal erosion, flooding, and have other pernicious effects to the environment and commercial efforts. The reduction in ice coverage due to climate change could potentially increase the frequency and degree of coastal flooding and erosion. Further, estuaries and delta systems act as conduits for storm surges, so when there is less nearshore ice coverage, these systems could introduce storm surge into terrestrial environments unaccustomed to saline intrusion, flooding, or other alien biogeochemical factors.​This project quantified the effect of reduced nearshore ice coverage on coastal flooding. The project developed a large...
Categories: Data;
Tags: Academics & scientific researchers,
COASTAL AREAS,
COASTAL AREAS,
COASTAL PROCESSES,
COASTAL PROCESSES,
The western coastline of Alaska is highly susceptible to coastal storms, which can cause coastal erosion, flooding, and have other pernicious effects to the environment and commercial efforts. The reduction in ice coverage due to climate change could potentially increase the frequency and degree of coastal flooding and erosion. Further, estuaries and delta systems act as conduits for storm surges, so when there is less nearshore ice coverage, these systems could introduce storm surge into terrestrial environments unaccustomed to saline intrusion, flooding, or other alien biogeochemical factors.​This project quantified the effect of reduced nearshore ice coverage on coastal flooding. The project developed a large...
Categories: Data;
Tags: Academics & scientific researchers,
COASTAL AREAS,
COASTAL AREAS,
COASTAL PROCESSES,
COASTAL PROCESSES,
A high spatial resolution storm surge model was developed for the YK Delta area to assess biological impacts of storm surges under current and future climates. Storm surges are expected to be more frequent and more severe in the YK Delta area due to climate change and sea level rise. The biological impacts in the YK Delta due to the changed storm surges could be extreme.The model was assessed with respect to measured water level data at the coast and, where available, spatial extent of inundation, for 6 storms from the period 1992 to 2011. In total, inundation projections from 9 historical storms (5 from the assessment + 4 others) were developed. For each storm, an spatial inundation index (time-integral of water...
Categories: Data;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: ARCHAEOLOGICAL AREAS,
ARCHAEOLOGICAL AREAS,
Academics & scientific researchers,
COASTAL AREAS,
COASTAL AREAS,
The South Atlantic LCC is seeking technical assistance in evaluating the past, current, and future condition of the ecological systems of the South Atlantic. The South Atlantic LCC is currently doing a “State of the South Atlantic” assessment to evaluate the past, current, and future condition of 9 broad ecosystem types. This procurement focuses on the approximately 71 ecological systems that exist completely or partially within the South Atlantic and are nested within the 9 South Atlantic LCC ecosystem types. South Atlantic LCC staff and collaborators are seeking technical assistance in evaluating the past, current, and future condition of the ecological systems of the South Atlantic and a concise report documenting...
Categories: Data,
Project;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: 2013,
Academics & scientific researchers,
Conservation NGOs,
Federal resource managers,
LCC,
The purpose of Landscape Conservation Cooperatives (LCCs) is to inform the management of natural and cultural heritage resources in response to shifts in climate, habitat fragmentation and loss, and other landscape level challenges. The South Atlantic LCC’s mission is to “create a shared blueprint for landscape conservation actions that sustain natural and cultural resources” (South Atlantic LCC 2014) and to this end, has contracted with the Conservation Biology Institute (CBI) to release the first version of the Conservation Blueprint using the Data Basin (databasin.org) platform. The South Atlantic LCC seeks to iteratively refine the Conservation Blueprint and release future versions as necessary to achieve their...
Categories: Data,
Project;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: 2014,
2015,
ANTHROPOGENIC/HUMAN INFLUENCED ECOSYSTEMS,
AQUATIC ECOSYSTEMS,
Academics & scientific researchers,
This dataset includes Total Snow Days(tsdy) for northern Alaska in GeoTiff format, covering the years 1980-2012. Total Snow Days is defined as total number of days with snow on the ground during the year(days). The dataset was generated by the Arctic LCC SNOWDATA: Snow Datasets for Arctic Terrestrial Applications project.The dataset is delivered in the ZIP archive file format. Each year is output in a separate GeoTiff file, where the year is indicated by the filename.Over the last 20 years, under a variety of NOAA, NSF, and NASA research programs, a snow-evolution modeling system has been developed that includes the MicroMet micrometeorological model, the SnowModel snow-process model, and the SnowAssim data assimilation...
Categories: Data;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: AIR TEMPERATURE,
AIR TEMPERATURE,
ALBEDO,
ALBEDO,
Academics & scientific researchers,
Researchers from the Manomet Center for ConservationSciences combined field observations of shorebirds withmapped physical and ecological parameters to develop a series ofspatially dependent habitat selection models that predict thecontemporary distribution of shorebird species across the ArcticCoastal Plain of Alaska.
Categories: Data;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Academics & scientific researchers,
Arctic Landscape Conservation Cooperative data.gov,
BIRDS,
BIRDS,
Conservation NGOs,
This dataset includes Glacier Melt(glmt) for northern Alaska in GeoTiff format, covering the years 1980-2012. Glacier Melt is defined as (m/yr). The dataset was generated by the Arctic LCC SNOWDATA: Snow Datasets for Arctic Terrestrial Applications project.The dataset is delivered in the ZIP archive file format. Each year is output in a separate GeoTiff file, where the year is indicated by the filename.Over the last 20 years, under a variety of NOAA, NSF, and NASA research programs, a snow-evolution modeling system has been developed that includes the MicroMet micrometeorological model, the SnowModel snow-process model, and the SnowAssim data assimilation model. These modeling tools can be thought of as physically-based...
Categories: Data;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: AIR TEMPERATURE,
AIR TEMPERATURE,
ALBEDO,
ALBEDO,
Academics & scientific researchers,
This project was funded to understand how, where, and why outputs from landscape connectivity models vary, and to suggest approaches to increase comparability and interoperability of models across Landscape Conservation Cooperative boundaries. We began by compiling metadata from 73 landscape connectivity modeling projects into an online, editable spreadsheet. Using spatial data from a subset of studies included in the database, we conducted an uncertainty analysis to understand how much spatial variation there was among predictions from different landscape connectivity models. Raw outputs from the original models showed relatively little overlap, averaging about 3% across all pairs of studies. However, when a common...
Categories: Data,
Project;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Completed,
Conservation planning,
Data Management and Integration,
Datasets/Database,
Decision support,
Existing stream temperature data were compiled from numerous federal, state, tribal, and private sources to develop an integrated regional database. Spatial statistical models for river networks were applied to these data to develop an accurate model that predicts stream temperature for all fish-bearing streams in the US portion of the GNLCC. Differences between model outputs for historic and future climate scenarios were used to assess spatial variation in the vulnerability of sensitive fish species across the GNLCC.FY2011Objectives: Develop a regional stream temperature model that incorporates important climate drivers, wildfire/riparian conditions, and geomorphic factors; Use the model to understand and predict...
Categories: Data,
Project;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Academics & scientific researchers,
Aquatic Connectivity,
British Columbia,
Bull Trout,
CA-1,
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