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Observations from the moderate resolution imaging spectroradiometer (MODIS) were used in combination with a large data set of Field measurements to map woody above-ground biomass (AGB) across tropical Africa. We generated a best-quality cloud-free mosaic of MODIS satellite reflectance observations for the period 2000-2003 and used a regression tree model to predict AGB at 1 km resolution. Results based on a cross-validation approach show that the model explained 82% of the variance in AGB, with a root mean square error of 50.5 Mg ha-1 for a range of biomass between 0 and 454 Mg ha-1 . Analysis of lidar metrics from the Geoscience Laser Altimetry System (GLAS), which are sensitive to vegetation structure, indicate...
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In 1991, the U.S. Geological Survey (USGS) began a study of more than 50 major river basins across the Nation as part of the National Water-Quality Assessment (NAWQA) project of the National Water-Quality Program. One of the major goals of the NAWQA project is to determine how water-quality conditions change over time. To support that goal, long-term consistent and comparable monitoring has been conducted on streams and rivers throughout the Nation. Outside of the NAWQA project, the USGS and other Federal, State, and local agencies also have collected long-term water-quality data to support their own assessments of changing water-quality conditions. Data from these multiple sources have been combined to support...
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The Big Sky Carbon Atlas is being developed using a GIS (Geographic Information System) and related tools as an online resource for partners and other stakeholders in the Big Sky Carbon Sequestration Partnership to explore and analyze the spatial characteristics of key geologic, physiographic, and anthropogenic factors affecting the Partnership's objectives.
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This map represents the percent change in total ecosystem carbon from 1971-2000 to 2070-2099, simulated by the model MC1 under the Hadley future climate projection and A2 anthropogenic emissions scenario. The average annual value of total ecosystem carbon for the respective 30-year periods decreased in some of the 5,311 grid cells of the Eastern Oregon study area and increased in others.The range of data values is from -18.2% to +194.1%. The mean value is -78.0% The vegetation model MC1 (e.g. Bachelet et al. 2001) was used to simulate vegetation dynamics, associated carbon and nitrogen cycle, water budget, and wild fire impacts at two study sites, one in eastern Oregon (Deschutes and Fremont-Winema National Forests)...
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This map represents the difference in annual minimum temperatures, simulated by the model MC1 between the 30-year periods 1971-2000 and 2070-2099, using the Hadley future climate projection under the A2 anthropogenic emission scenario. The average annual minimum temperature for the respective 30-year periods increased in all of the 5,311 grid cells of the Apache-Sitgreaves study area. The greatest increase was 4.35 C; the least increase was 4.26 C; and the mean increase was 4.31 C. The vegetation model MC1 (e.g. Bachelet et al. 2001) was used to simulate vegetation dynamics, associated carbon and nitrogen cycle, water budget, and wild fire impacts at two study sites in eastern Oregon (Deschutes and Fremont-Winema...
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This map represents the mean for the 30 year period 1971-2000 of the annual peak value of the fraction of live vegetation carbon which is in herbaceous (as opposed to woody) vegetation. The data is from output variable GFRAC in MC1 version B60. The data values are unitless fractions and range from 0 to 1. The vegetation model MC1 (e.g. Bachelet et al. 2001) was used to simulate vegetation dynamics, associated carbon and nitrogen cycle, water budget, and wild fire impacts at two study sites in eastern Oregon (Deschutes and Fremont-Winema National Forests) and in Arizona (Apache Sitgreaves National Forest area) in the context of a project funded by the USDA Forest Service (PNW 09-JV-11261900-003). Historical climate...
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This product is one of a set of mapped model simulation results generated for a project called "Global Climate Change and California: Potential Implications for Ecosystems, Health, and the Economy". The project was conducted by the Electrical Power Research Institute (EPRI) and funded by the California Energy Commission's Public Interest Energy Research (PIER) Program. The project was the most detailed study ever undertaken on the potential effect of climate change on California. The work examined a broad array of potentially affected sectors as well as the interactions between climate change and increased population, economic growth, and technological change. It considered a wide range of climate change scenarios,...
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This map represents the change between 1971-2000 and 2070-2099 in the mean annual fraction of each gridcell affected by fire, as simulated by the model MC1 under the Hadley future climate projection and A2 anthropogenic emissions scenario. Data values are calculated as PART_BURN(2070-2099) minus PART_BURN(1971-2000). PART_BURN data is from MC1 version B60. The average annual fraction of cell burned for the respective 30-year periods increased in some of the 5,311 grid cells of the Apache-Sitgreaves study area and decreased in others. The range of data values is from -0.077 to +0.163. The mean value is +0.031. The vegetation model MC1 (e.g. Bachelet et al. 2001) was used to simulate vegetation dynamics, associated...
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This map represents the change between 1971-2000 and 2071-2100 in the annual peak fraction of total live vegetation carbon held in herbaceous plants, as simulated by the model MC1 under the CSIRO Mk3 future climate projection and A2 anthropogenic emissions scenario. The range of data values is from -0.741 to +0.999. The mean value is +0.107. Data values are calculated as GFRAC(2071-2100) minus GFRAC(1971-2000). GFRAC data is from MC1 version B60. The dynamic global vegetation model MC1 (e.g. Bachelet et al. 2001) was used to simulate vegetation dynamics, associated carbon and nitrogen cycle, water budget, and wild fire impacts at two study sites in eastern Oregon (Deschutes and Fremont-Winema National Forests)...
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Mangrove restoration has a strong potential to enhance the services provided by coastal wetlands on a number of Department of the Interior (DOI) managed lands throughout the southeastern United States of America. Services include storm protection, water quality improvement, and biological carbon sequestration. Forest structural attributes including basal area, tree height, and stem density by species are used to calculate above ground biomass and above ground productivity. Percent cover is used to asses the forest canopy health. The data collected for the soils are: bulk density, percent total Nitrogen, percent total Carbon, and selected samples percent total Phosporus. The forest structure plots were placed in...
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Sagebrush ecosystems in North America have experienced extensive degradation since European settlement, and continue to further degrade from exotic invasive plants, greater fire frequency, intensive grazing practices, increased oil and gas development, climate change, and other factors. Remote sensing is often identified as a key information source to facilitate broad-area ecosystem-wide characterization, monitoring and analysis, however, approaches that characterize sagebrush with sufficient and accurate local detail across large areas to support ecosystem research and analysis are unavailable. We have developed a new remote sensing sagebrush ecosystem characterization approach for the state of Wyoming, U.S.A....


map background search result map search result map Big Sky Carbon Sequestration Partnership Atlas Remote Sensing Sagebrush Habitat Quantification Products for Wyoming (shrub height) Percent change in the average annual value of total ecosystem carbon between 1971-2000 and 2070-2099, as simulated by MC1 under Hadley A2 for the Eastern Oregon study area, USA Difference in mean annual minimum temperatures between 1971-2000 and 2070-2099 under Hadley A2 for the Apache-Sitgreaves study area, Arizona, USA Change in the mean annual fraction of cell burned between 1971-2000 and 2070-2099, as simulated by MC1 under Hadley A2 for the Apache-Sitgreaves study area, Arizona, USA Annual Fraction of the Total Live Vegetation Carbon Held in Herbaceous Plants (1971-2000) for the Apache-Sitgreaves study area, Arizona, USA Change in the fraction of total live vegetation carbon held in herbaceous plants between 1971-2000 and 2071-2000, as simulated by MC1 under CSIRO Mk3 A2 for the eastern Oregon study area, Oregon, USA Angola woody above ground biomass (tonnes/hectare) HAD IS92a future climate scenario: Projected (2070-2099) Percentage Change in Mean Total Annual Precipitation for California Water-quality and streamflow datasets used in the Weighted Regressions on Time, Discharge, and Season (WRTDS) models to determine trends in the Nation’s rivers and streams, 1972-2012(output) USGS US Topo 7.5-minute map for Cedar Ridge Canyon, UT 2017 USGS US Topo 7.5-minute map for Currant Canyon, UT 2017 USGS US Topo 7.5-minute map for Mystery Cave, MT-WY 2017 USGS US Topo 7.5-minute map for Hollenbeck Draw, MT-WY 2017 Baseline data for a hydrological restoration of a mangrove forest near Goodland, Florida (2015 - 2017) Baseline data for a hydrological restoration of a mangrove forest near Goodland, Florida (2015 - 2017) USGS US Topo 7.5-minute map for Cedar Ridge Canyon, UT 2017 USGS US Topo 7.5-minute map for Currant Canyon, UT 2017 USGS US Topo 7.5-minute map for Mystery Cave, MT-WY 2017 USGS US Topo 7.5-minute map for Hollenbeck Draw, MT-WY 2017 Annual Fraction of the Total Live Vegetation Carbon Held in Herbaceous Plants (1971-2000) for the Apache-Sitgreaves study area, Arizona, USA Difference in mean annual minimum temperatures between 1971-2000 and 2070-2099 under Hadley A2 for the Apache-Sitgreaves study area, Arizona, USA Change in the mean annual fraction of cell burned between 1971-2000 and 2070-2099, as simulated by MC1 under Hadley A2 for the Apache-Sitgreaves study area, Arizona, USA Percent change in the average annual value of total ecosystem carbon between 1971-2000 and 2070-2099, as simulated by MC1 under Hadley A2 for the Eastern Oregon study area, USA Change in the fraction of total live vegetation carbon held in herbaceous plants between 1971-2000 and 2071-2000, as simulated by MC1 under CSIRO Mk3 A2 for the eastern Oregon study area, Oregon, USA Big Sky Carbon Sequestration Partnership Atlas Remote Sensing Sagebrush Habitat Quantification Products for Wyoming (shrub height) HAD IS92a future climate scenario: Projected (2070-2099) Percentage Change in Mean Total Annual Precipitation for California Angola woody above ground biomass (tonnes/hectare) Water-quality and streamflow datasets used in the Weighted Regressions on Time, Discharge, and Season (WRTDS) models to determine trends in the Nation’s rivers and streams, 1972-2012(output)