Filters: Tags: terrestrial ecosystem (X)
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This map shows the Lowland Woody Wetland conservation element data in the CYR study region. Layers include: Distribution map of the lowland woody wetland CE; Current, near-term, and long-term status of lowland woody wetland in the CYR study area. These data are provided by Bureau of Land Management (BLM) "as is" and may contain errors or omissions. The User assumes the entire risk associated with its use of these data and bears all responsibility in determining whether these data are fit for the User's intended use. These data may not have the accuracy, resolution, completeness, timeliness, or other characteristics appropriate for applications that potential users of the data may contemplate. The User is encouraged...
This data set includes geographic coordinates for both pre- and post-adjustment locations used to georectify orthoimagery and digital surface models derived from aerial imagery collected using unoccupied aerial systems (UAS) in October 2016. Georeferencing links are provided for each data type (color or multi-band imagery) and portion of the atoll sampled during different UAS missions. Orthoimagery and DSM derived from a given data set and area were georeferenced using the same set of points.
Alaska LandCarbon Assessment
Categories: Data;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Carbon balance,
Soil,
Terrestrial ecosystem,
Vegetation,
geoscientificInformation
This map shows the Rare Ecosystems conservation element data in the CYR study area. Layers include: Six rare ecosystems were identified within the CYR study area; Projected change in permafrost at 1-m depth from 2010s to 2060s and known locations of Arctic pingos; Distribution of rare plant species across the CYR study area; MaxEnt current and long-term future predicted probability of suitability results for the Steppe Bluff BpS in the Fortymile River region; MaxEnt predicted probability of suitability for Poa porsildii in the CYR study area. These data are provided by Bureau of Land Management (BLM) "as is" and may contain errors or omissions. The User assumes the entire risk associated with its use of these data...
This map shows the Upland Mesic Spruce Forest conservation element data in the CYR study region. Layers include: Distribution map of the upland mesic spruce forest CE; Summer Warmth Index for upland mesic spruce forest for the current condition and long-term future; Current, near-term, and long-term status of upland mesic spruce forest in the CYR study area. These data are provided by Bureau of Land Management (BLM) "as is" and may contain errors or omissions. The User assumes the entire risk associated with its use of these data and bears all responsibility in determining whether these data are fit for the User's intended use. These data may not have the accuracy, resolution, completeness, timeliness, or other...
The data provide location and data quality information for ground control points (GCP) deployed at Palmyra Atoll for acquisition of imagery using small unoccupied aerial systems (sUAS) in October 2016. Thales ProMark 3 handheld geographic positioning systems (GPS) were used as both a local base station and to record locations of individual GCPs, with occupancy times of approximately 30 minutes per GCP. Location data for GCPs were post-processed against base station data using Mobile Mapper Office software to yield local position accuracy of approximately 0.1 m.
Categories: Data;
Types: Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: Northern Line Islands,
Pacific Ocean,
Palmyra Atoll,
biota,
elevation,
We are provoding a set of table and maps that provides summary of ecosystem carbon balance (pools and fluxes) as simulated by the Dynamic Organic Soil version of the Terrestrial Ecosystem Model. Simulations are provided for the historical period from 1950 to 2009 and projections from 2010 to 2099, for the four main landscape conservation cooperative regions in Alaska (i.e. the Arctic, the Western Alaska, the North Pacific and the Northwest Boreal LCCs). Projections have been conducted at 1km-resolution for two set of climate scenarios for the A1B, B1 and A2 emission scenarios of the Intergovernmental Panel on Climate Change Special Report on Emissions Scenarios (IPCC-SRES). The two global circulation models used...
Categories: Data;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Alaska,
Carbon balanace,
NCCWSC,
Soil,
Terrestrial ecosystem,
This map shows the Floodplain Forest and Shrub conservation element data in the CYR study region. Layers include: Distribution map of the floodplain forest and shrub CE; Summer Warmth Index for lowland Coarse-filter CEs (floodplain forest and shrub, and lowland woody wetland) for the current condition and the long-term future; Current, near-term, and long-term status of floodplain forest and shrub in the CYR study area. These data are provided by Bureau of Land Management (BLM) "as is" and may contain errors or omissions. The User assumes the entire risk associated with its use of these data and bears all responsibility in determining whether these data are fit for the User's intended use. These data may not have...
This map shows the Alpine Dwarf Shrub Tundra conservation element data in the CYR study area. Layers include: Distribution map of the alpine dwarf shrub tundra CE; Current, near-term, and long-term status of alpine dwarf shrub tundra in the CYR study area. These data are provided by Bureau of Land Management (BLM) "as is" and may contain errors or omissions. The User assumes the entire risk associated with its use of these data and bears all responsibility in determining whether these data are fit for the User's intended use. These data may not have the accuracy, resolution, completeness, timeliness, or other characteristics appropriate for applications that potential users of the data may contemplate. The User...
This map shows the Alpine and Arctic Tussock Tundra conservation element data in the CYR study area. Layers include: Distribution map of the alpine and Arctic tussock tundra CE; Summer Warmth Index for alpine dwarf shrub tundra and alpine and Arctic tussock tundra for the current condition and long-term future; Current, near-term, and long-term status of alpine and Arctic tussock tundra in the CYR study area. These data are provided by Bureau of Land Management (BLM) "as is" and may contain errors or omissions. The User assumes the entire risk associated with its use of these data and bears all responsibility in determining whether these data are fit for the User's intended use. These data may not have the accuracy,...
This map shows the Upland Mesic Spruce-hardwood Forest conservation element data in the CYR study region. Layers include: Distribution map of the upland mesic spruce-hardwood forest CE; Summer Warmth Index for upland mesic spruce hardwood forest for the current condition and long-term future; Current, near-term, and long-term status of upland mesic spruce-hardwood forest in the CYR study area. These data are provided by Bureau of Land Management (BLM) "as is" and may contain errors or omissions. The User assumes the entire risk associated with its use of these data and bears all responsibility in determining whether these data are fit for the User's intended use. These data may not have the accuracy, resolution,...
Ecosystem water-use efficiency (EWUE) is an indicator of carbon-water interactions and is defined as the ratio of carbon assimilation (GPP) to evapotranspiration (ET). Previous research suggests an increasing long-term trend in annual EWUE over many regions, and is largely attributed to the physiological effects of rising CO2. The seasonal trends in EWUE, however, have not yet been analyzed. In this study, we investigate seasonal EWUE trends and responses to various drivers during 1982-2008. The seasonal cycle for two variants of EWUE, water-use efficiency (WUE, GPP/ET) and transpiration-based WUE (WUEt, the ratio of GPP and transpiration), is analyzed from 0.5° gridded fields from four process-based models and...
Categories: Publication;
Types: Citation;
Tags: CO2 enrichment,
climate change,
process-based model,
seasonal variation,
terrestrial ecosystem,
A significant challenge faced by climate scientists and land managers in the public and private sectors is the need for reliable and complete information about the status of ecosystem components (e.g. air, land, water, plants, animals) that may be influenced by climate change. While many organizations monitor one or more aspect of aquatic and terrestrial ecosystems, these monitoring programs are seldom coordinated and the associated data are not readily discoverable. The Global Change Monitoring Portal (GCMP) is a recently released tool of the DOI Southeast Climate Science Center designed to support the efforts of multiple federal, state, and other organizations by connecting them to these data resources. The GCMP...
Ecosystem water-use efficiency (EWUE) is an indicator of carbon-water interactions and is defined as the ratio of carbon assimilation (GPP) to evapotranspiration (ET). Previous research suggests an increasing long-term trend in annual EWUE over many regions, and is largely attributed to the physiological effects of rising CO2. The seasonal trends in EWUE, however, have not yet been analyzed. In this study, we investigate seasonal EWUE trends and responses to various drivers during 1982-2008. The seasonal cycle for two variants of EWUE, water-use efficiency (WUE, GPP/ET) and transpiration-based WUE (WUEt, the ratio of GPP and transpiration), is analyzed from 0.5° gridded fields from four process-based models and...
Categories: Publication;
Types: Citation;
Tags: CO2 enrichment,
climate change,
process-based model,
seasonal variation,
terrestrial ecosystem,
This map shows the terrestrial ecosystems coarse filter core analysis results for the CYR study area. Layers include: Distribution of Terrestrial Coarse-filter CEs within the CYR study area; Relative contribution of the major landcover source maps to the Terrestrial Coarse-filter CE distributions; Mean July temperatures for the current condition and long-term future (2060s) and change in mean July temperature; Mean January temperatures for the current condition and long-term future (2060s) and change in mean January temperature; Summer Warmth Index for the current condition, near-term future, and long-term future; Mean annual precipitation for the current condition and long-term future and change in annual precipitation;...
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