Link to Web Site Portal Home
Thumbnail Icon [Data_Center: Short_Name='ORNL_DAAC']


Refine by Category
 
Refine by Full Text

 

3703 Titles Match Your Query
Showing 1 through 50 of 3703 Next
1. 15 Minute Stream Flow Data: USGS (FIFE) [FIFE_STRM_15M_1_1]
USGS 15 minute stream flow data for Kings Creek on the Konza Prairie


2. 30 Minute Rainfall Data (FIFE) [FIFE_RAIN_30M_2_1]
30 minute rainfall data for the Konza Prairie


3. A Compilation of Global Soil Microbial Biomass Carbon, Nitrogen, and Phosphorus Data [GLOBAL_MICROBIAL_BIOMASS_C_N_P_1264_1]
This data set provides the concentrations of soil microbial biomass carbon (C), nitrogen (N) and phosphorus (P), soil organic carbon, total nitrogen, and total phosphorus at biome and global scales. ...


4. A Concise Experiment Plan for the Arctic-Boreal Vulnerability Experiment [ABoVE_Concise_Experiment_Plan_1617_1]
This document presents the Concise Experiment Plan for NASA's Arctic-Boreal Vulnerability Experiment (ABoVE) to serve as a guide to the Program as it identifies the research to be conducted under ...


5. A Global Data Set of Leaf Photosynthetic Rates, Leaf N and P, and Specific Leaf Area [LEAF_PHOTOSYNTHESIS_TRAITS_1224_1]
This global data set of photosynthetic rates and leaf nutrient traits was compiled from a comprehensive literature review. It includes estimates of Vcmax (maximum rate of carboxylation), Jmax (maximum ...


6. A Global Database of Carbon and Nutrient Concentrations of Green and Senesced Leaves [LEAF_CARBON_NUTRIENTS_1106_1]
This data set provides carbon (C), nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), and magnesium (Mg) concentrations in green and senesced leaves. Vegetation characteristics reported include ...


7. A Global Database of Field-observed Leaf Area Index in Woody Plant Species, 1932-2011 [LAI_WOODY_PLANTS_1231_1]
This data set provides global leaf area index (LAI) values for woody species. The data are a compilation of field-observed data from 1,216 locations obtained from 554 literature sources published ...


8. A Global Database of Gas Fluxes from Soils after Rewetting or Thawing, Version 1.0 [GLOBAL_RTSG_FLUX_V1_1078_1]
This database contains information compiled from published studies on gas flux from soil following rewetting or thawing. The resulting database includes 222 field and laboratory observations focused ...


9. A Global Database of Litterfall Mass and Litter Pool Carbon and Nutrients [GLOBAL_LITTER_CARBON_NUTRIENTS_1244_1]
Measurement data of aboveground litterfall and littermass and litter carbon, nitrogen, and nutrient concentrations were extracted from 685 original literature sources and compiled into a comprehensive ...


10. A Global Database of Soil Phosphorus Compiled from Studies Using Hedley Fractionation [GLOBAL_PHOSPHORUS_HEDLEY_FRACT_1230_1]
This data set provides concentrations of soil phosphorus (P) compiled from the peer-reviewed literature that cited the Hedley fractionation method (Hedley and Stewart, 1982). This database contains ...


11. A Global Database of Soil Respiration Data, Version 4.0 [SRDB_V4_1578_4.1]
This dataset provides an update to the Soil Respiration Database (SRDB), a near-universal compendium of published soil respiration data. Soil respiration, the flux of autotrophically- and heterotrophically-generated ...


12. ABoVE: AVHRR-Derived Forest Fire Burned Area-Hot Spots, Alaska and Canada, 1989-2000 [AVHRR_Fire_Products_1545_1]
This dataset provides annual forest fire burned area and daily hotspot products developed using data acquired from the Advanced Very-High-Resolution Radiometer (AVHRR) instruments carried aboard two ...


13. ABoVE: AirSWOT Color-Infrared Imagery Over Alaska and Canada, 2017 [ABoVE_Open_Water_Map_1643_1]
This dataset contains georeferenced three-band orthomosaics of green, red, and near-infrared (NIR) digital imagery at 1m resolution collected over selected surface waters across Alaska and Canada ...


14. ABoVE: AirSWOT Ka-band Radar over Surface Waters of Alaska and Canada, 2017 [ABoVE_AirSWOT_Radar_Data_1646_1]
AirSWOT is an airborne calibration and validation instrument for the upcoming Surface Water Topography Mission (SWOT) satellite. AirSWOT is capable of producing high resolution digital elevation models ...


15. ABoVE: Burn Severity, Fire Progression, Landcover and Field Data, NWT, Canada, 2014 [Wildfires_2014_NWT_Canada_1307_1]
This data set provides peatland landcover classification maps, fire progression maps, and vegetation community biophysical data collected from areas that were burned by wildfire in 2014 in the Northwest ...


16. ABoVE: Burn Severity, Fire Progression, and Field Data, NWT, Canada, 2015-2016 [Wildfires_NWT_Canada_1548_1]
This data set provides a fire progression map for year 2015 and measures of burn severity and vegetation community biophysical data collected from areas that were burned by wildfires in 2014 and 2015 ...


17. ABoVE: CO2 and CH4 Fluxes and Meteorology at Flux Tower Sites, Alaska, 2015-2017 [AK_North_Slope_NEE_CH4_Flux_1562_1]
This dataset provides CO2 and CH4 fluxes and meteorological parameters from five eddy covariance (EC) tower sites located at Barrow (three sites), Atqasuk (ATQ) and Ivotuk (IVO), Alaska. These locations ...


18. ABoVE: Characterization of Burned and Unburned Spruce Forest Sites, Tanana, AK, 2017 [Wildfire_Effects_Spruce_Field_1595_1]
This dataset provides the results of field observations of soil characteristics and depth to permafrost, survey results for Composite Burn Index (CBI) determination, and Landsat-derived estimates ...


19. ABoVE: Characterization of Carbon Dynamics in Burned Forest Plots, NWT, Canada, 2014 [ABoVE_Soil_Radiocarbon_NWT_1664_1]
This dataset provides field data from boreal forests in the Northwest Territories (NWT), Canada, that were burned by wildfires in 2014. During fieldwork in 2015, 211 burned plots were established. ...


20. ABoVE: Climate Drivers of Pan-Arctic Tundra Vegetation Productivity, 1982-2015 [Seasonality_Tundra_Vegetation_1606_1]
This dataset provides a summary of potential climate drivers of Arctic tundra vegetation productivity that have been compiled for growing seasons from 1982 to 2015. The scale of interest is the entire ...


21. ABoVE: Cumulative Annual Burned Area, Circumpolar High Northern Latitudes, 2001-2015 [Arctic_Boreal_Burned_Area_1526_1]
This dataset provides annual cumulative end-of-season burned area in circumpolar high northern latitudes (HNL) above 60 degrees for the years 2001-2015. The data were generated using the Arctic Boreal ...


22. ABoVE: Dall Sheep Lamb Recruitment and Climate Data, Alaska and NW Canada, 2000-2015 [Dall_Sheep_Population_Dynamics_1640_1]
This dataset contains estimated annual average Dall sheep (Ovis dalli dalli) lamb-to-ewe ratios for each year from 2000-2015 across the full species range in Alaska and Northwestern Canada. Sheep ...


23. ABoVE: Dall Sheep Response to Snow and Landscape Covariates, Alaska, 2005-2008 [Dall_Sheep_Snowpack_1602_1]
This dataset provides daily estimates of snow depth and snow density for the study area in Lake Clark National Park and Preserve (LCNPP), Alaska. The data were generated using SnowModel and used as ...


24. ABoVE: Dall Sheep Track Sinking Depths, Snow Depth, Hardness, and Density, 2017 [Snowpack_Dall_Sheep_Track_1583_1]
This dataset contains Dall sheep (Ovis dalli dalli) hoof sinking depths in snow tracks, and snow depth, hardness, and density measurements in snow pits adjacent to the tracks. Snow measurements were ...


25. ABoVE: Directory of Field Sites Associated with 2017 ABoVE Airborne Campaign [ABoVE_Planning_Field_Sites_1582_1]
This dataset provides a listing of the ~6,700 field sites used in planning the ABoVE Airborne Campaign (AAC) for 2017. The sites included point, polygon, and line locations that were used in determining ...


26. ABoVE: Fractional Open Water Cover for Pan-Arctic and ABoVE-Domain Regions, 2002-2015 [ABoVE_Frac_Open_Water_1362_1]
This data set provides land surface fractional open water cover maps for two overlapping regions: the entire pan-Arctic region (latitude > 45 degrees) and the Arctic-Boreal Vulnerability Experiment ...


27. ABoVE: Gridded 30-m Aboveground Biomass, Shrub Dominance, North Slope, AK, 2007-2016 [Maps_AGB_North_Slope_AK_1565_1]
This dataset includes 30-m gridded estimates of total plant aboveground biomass (AGB), the shrub AGB, and the shrub dominance (shrub/plant AGB) for non-water portions of the Beaufort Coastal Plain ...


28. ABoVE: Hyperspectral Imagery from AVIRIS-NG, Alaskan and Canadian Arctic, 2017-2018 [ABoVE_Airborne_AVIRIS_NG_1569_1.1]
This dataset provides Level 1 radiance and Level 2 surface reflectance measured by the Airborne Visible/Infrared Imaging Spectrometer-Next Generation (AVIRIS-NG) instrument during flights over the ...


29. ABoVE: Ignitions, burned area and emissions of fires in AK, YT, and NWT, 2001-2015 [Alaskan_Wildfire_C_Emissions_1341_1]
This data set provides estimates of daily burned area, carbon emissions and uncertainty, and daily fire ignition locations for boreal fires in Alaska, USA, and the Yukon and Northwest Territories, ...


30. ABoVE: Landsat-derived Burn Scar dNBR across Alaska and Canada, 1985-2015 [ABoVE_Fire_Severity_dNBR_1564_1]
This dataset contains differenced Normalized Burned Ratio (dNBR) at 30-m resolution calculated for burn scars from fires that occurred within the Arctic Boreal and Vulnerability Experiment (ABoVE) ...


31. ABoVE: Last Day of Spring Snow, Alaska, USA, and Yukon Territory, Canada, 2000-2016 [Last_Day_Spring_Snow_1528_1]
This dataset provides the last day of spring snow cover for most of Alaska and the Yukon Territory for 2000 through 2016. The data are based on the MODIS daily snow cover fraction product (MODSCAG) ...


32. ABoVE: MODIS- and CCAN-Derived NDVI and Trends, North Slope of Alaska, 2000-2015 [MODIS_CCaN_NDVI_Trends_Alaska_1666_1]
This dataset provides the average Normalized Difference Vegetation Index (NDVI) at 1-km resolution over the north slope of Alaska, USA, for the growing season (June-August) of each year from 2000-2015, ...


33. ABoVE: MODIS-derived Maximum NDVI, Northern Alaska and Yukon Territory for 2002-2017 [Alaska_Yukon_NDVI_1614_1]
This dataset provides the maximum Normalized Difference Vegetation Index (NDVI) at 1-km resolution over northern Alaska, USA and the Yukon Territory, Canada for each year from 2002-2017, as well as ...


34. ABoVE: NDVI Trends across Alaska and Canada from Landsat, 1984-2012 [Vegetation_greenness_trend_1576_1]
This dataset provides the summer NDVI trend and trend significance for the period 1984-2012 over Alaska and Canada. The NDVI were calculated per-pixel from all available peak-summer 30-m Landsat 5 ...


35. ABoVE: Peak Greenness for Canadian Boreal Forest from Landsat 5 TM Imagery, 1984-2011 [Canada_Boreal_Forest_Greenness_1587_1]
This dataset provides a 28-year time series of peak greenness (NDVI) data derived from Landsat 5 TM imagery over the boreal forest region of Canada. Landsat 5 TM scenes were collected for 46 selected ...


36. ABoVE: Permafrost Measurements and Distribution Across the Y-K Delta, Alaska, 2016 [Permafrost_Thaw_Depth_YK_1598_1]
This dataset provides field observations of thaw depth and dominant vegetation types, a LiDAR-derived elevation map, and permafrost distribution and probability maps for an area on the coastal plain ...


37. ABoVE: Rain-on-Snow Frequency and Distribution during Cold Seasons, Alaska, 2003-2016 [Rain-on-Snow_Data_1611_1]
This dataset provides maps of rain-on-snow (ROS) events across Alaska for the individual months of November to March 2002-2011 and November to March 2012-2016, and annual water year summary maps for ...


38. ABoVE: Riverbank Erosion and Vegetation Changes, Yukon River Basin, Alaska, 1984-2017 [Erosion_Vegetation_Yukon_1616_1]
This dataset provides a time series of riverbank erosion and vegetation colonization along reaches of the Yukon River (3 study areas), Tanana and Nenana Rivers (1 area), and Chandalar River (1 area) ...


39. ABoVE: Study Domain and Standard Reference Grids, Version 2 [ABoVE_reference_grid_v2_1527_2]
The Arctic - Boreal Vulnerability Experiment (ABoVE) has developed two standardized spatial data products to expedite coordination of research activities and to facilitate data interoperability. The ...


40. ABoVE: Surface Water Extent, Boreal and Tundra Regions, North America, 1991-2011 [Decadal_Water_Maps_1324_1.1]
This data set provides the location and extent of surface water (open water not including vegetated wetlands) for the entire Boreal and Tundra regions of North America for three epochs, centered on ...


41. ABoVE: Thaw Depth at Selected Unburned and Burned Sites Across Alaska, 2016-2017 [ABoVE_Thaw_Depth_1579_1]
This dataset provides thaw depth measurements made at seven locations across Alaska, during August 2016 and June and September 2017. Three of the locations are paired unburned-burned sites. At each ...


42. ABoVE: Wildfire Carbon Emissions and Burned Plot Characteristics, NWT, CA, 2014-2016 [Fire_Emissions_NWT_1561_1]
This dataset provides estimates of wildfire carbon emissions and uncertainties at 30-m resolution, and measurements collected at burned and unburned field plots from the 2014 wildfire sites near Yellowknife, ...


43. ABoVE: Wildfire Date of Burning within Fire Scars across Alaska and Canada, 2001-2015 [Wildfires_Date_of_Burning_1559_1]
This dataset provides estimates of wildfire progression, as represented by date of burning (DoB), within fire scars across Alaska and Canada for the period 2001-2015. The estimated DoB was derived ...


44. ABoVE: Year-round Soil CO2 Efflux in Alaskan Ecosystems [Arctic_Winter_Respiration_1620_1]
This dataset provides soil surface CO2 efflux derived from measurements of soil respiration using forced diffusion (FD) chambers. Measurement systems were established at seven selected sites within ...


45. ACT-America: L1 Meteorological and Aircraft Navigational Data [ACTAMERICA_Hskping_1574_1]
This dataset provides aircraft navigational parameters and related meteorological data (often referred to as "housekeeping" data) in support of the research activities for the two aircraft that flew ...


46. ACT-America: L2 In Situ Atmospheric CO2, CO, CH4, and O3 Concentrations, Eastern USA [ACTAMERICA_PICARRO_1556_1.1]
This data set provides atmospheric carbon dioxide (CO2), carbon monoxide (CO), methane (CH4), and ozone (O3) concentrations collected during airborne campaigns conducted by the Atmospheric Carbon ...


47. ACT-America: L2 In Situ Atmospheric Gas Concentrations from Flasks, Eastern USA [ACTAMERICA_PFP_1575_1.1]
This dataset provides atmospheric carbon dioxide (CO2), methane (CH4), carbon monoxide (CO), molecular hydrogen (H2), nitrous oxide (N2O), sulfur hexafluoride (SF6), and other trace gas mole fractions ...


48. ACT-America: L2 In Situ CO2, CO, and CH4 Concentrations from Towers, Eastern USA [ACTAMERICA-PICARRO_Ground_1568_1.1]
This dataset provides atmospheric carbon dioxide (CO2), carbon monoxide (CO), and methane (CH4) concentrations as measured on a network of instrumented communications towers operated by the Atmospheric ...


49. ACT-America: L2 Remotely Sensed Column-average CO2 by Airborne Lidar, Eastern USA [ACTAMERICA_MFFLL_1649_1]
This dataset provides remotely sensed column-average carbon dioxide (CO2) concentrations measured during airborne campaigns conducted for the Atmospheric Carbon and Transport (ACT-America) project. ...


50. ACT-America: L3 Merged In Situ Atmospheric Trace Gases and Flask Data, Eastern USA [ACTAMERICA_Merge_1593_1.1]
This dataset provides merged data products acquired during flights over the central and eastern United States as part of the Atmospheric Carbon and Transport - America (ACT-America) project. Two aircraft ...


Showing 1 through 50 of 3703 Next

Link to NASA website
Responsible NASA Official:   Stephen Berrick
Webmaster:   Rosy Cordova   ·  Contact GCMD User Support for assistance