OpenSearch

Using the NASA EOSDIS Common Metadata Repository

Collection Search

  • 15 Minute Stream Flow Data: USGS (FIFE)

    https://cmr.earthdata.nasa.gov/search/concepts/C179003030-ORNL_DAAC.xml
    Description:

    USGS 15 minute stream flow data for Kings Creek on the Konza Prairie

    Links: Temporal Extent: Spatial Extent:
    Point: 39.1 -96.6

    ORNL_DAAC Short Name: FIFE_STRM_15M_1 Version ID: 1 Unique ID: C179003030-ORNL_DAAC

  • 30 Minute Rainfall Data (FIFE)

    https://cmr.earthdata.nasa.gov/search/concepts/C179002914-ORNL_DAAC.xml
    Description:

    30 minute rainfall data for the Konza Prairie

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: 39.08 -96.6 39.11 -96.55

    ORNL_DAAC Short Name: FIFE_RAIN_30M_2 Version ID: 1 Unique ID: C179002914-ORNL_DAAC

  • A Compilation of Global Soil Microbial Biomass Carbon, Nitrogen, and Phosphorus Data

    https://cmr.earthdata.nasa.gov/search/concepts/C1000000000-ORNL_DAAC.xml
    Description:

    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. The data were compiled from a comprehensive survey of publications from the late 1970s to 2012 and include 3,422 data points from 315 papers. These data are from soil samples collected primarily at 0-15 cm depth with some from 0-30 cm. In addition, data were compiled for soil microbial biomass concentrations from soil profile samples to depths of 100 cm. Sampling site latitude and longitude were available for the majority of the samples that enabled assembling additional soil properties, site characteristics, vegetation distributions, biomes, and long-term climate data from several global sources of soil, land-cover, and climate data. These site attributes are included with the microbial biomass data. This data set contains two *.csv files of the soil microbial biomass C, N, P data. The first provides all compiled results emphasizing the full spatial extent of the data, while the second is a subset that provides only data from a series of profile samples emphasizing the vertical distribution of microbial biomass concentrations.There is a companion file, also in .csv format, of the references for the surveyed publications. A reference_number relates the data to the respective publication.The concentrations of soil microbial biomass, in combination with other soil databases, were used to estimate the global storage of soil microbial biomass C and N in 0-30 cm and 0-100 cm soil profiles. These storage estimates were combined with a spatial map of 12 major biomes (boreal forest, temperate coniferous forest, temperate broadleaf forest, tropical and subtropical forests, mixed forest, grassland, shrub, tundra, desert, natural wetland, cropland, and pasture) at 0.05-degree by 0.5-degree spatial resolution. The biome map and six estimates of C and N storage and C:N ration in soil microbial biomass are provided in a single netCDF format file.

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: -90 -180 79 177.9

    ORNL_DAAC Short Name: GLOBAL_MICROBIAL_BIOMASS_C_N_P_1264 Version ID: 1 Unique ID: C1000000000-ORNL_DAAC

  • A Global Data Set of Leaf Photosynthetic Rates, Leaf N and P, and Specific Leaf Area

    https://cmr.earthdata.nasa.gov/search/concepts/C179126725-ORNL_DAAC.xml
    Description:

    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 rate of electron transport), leaf nitrogen content (N), leaf phosphorus content (P), and specific leaf area (SLA) data from both experimental and ambient field conditions, for a total of 325 species and treatment combinations. Both the original published Vcmax and Jmax values as well as estimates at standard temperature are reported. The maximum rate of carboxylation (Vcmax) and the maximum rate of electron transport (Jmax) are primary determinants of photosynthetic rates in plants, and modeled carbon fluxes are highly sensitive to these parameters. Previous studies have shown that Vcmax and Jmax correlate with leaf nitrogen across species and regions, and locally across species with leaf phosphorus and specific leaf area, yet no universal relationship suitable for global-scale models is currently available. These data are suitable for exploring the general relationships of Vcmax and Jmax with each other and with leaf N, P and SLA. This data set contains one *.csv file.

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: -43.2 -122.4 58.42 176.13

    ORNL_DAAC Short Name: LEAF_PHOTOSYNTHESIS_TRAITS_1224 Version ID: 1 Unique ID: C179126725-ORNL_DAAC

  • A Global Database of Carbon and Nutrient Concentrations of Green and Senesced Leaves

    https://cmr.earthdata.nasa.gov/search/concepts/C179003380-ORNL_DAAC.xml
    Description:

    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 species growth habit, leaf area, mass, and mass loss with senescence. The data were compiled from 86 selected studies in 31 countries, and resulted in approximately 1,000 data points for both green and senesced leaves from woody and non-woody vegetation as described in Vergutz et al (2012). The studies were conducted from 1970-2009. There are two comma-delimited data files with this data set.

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: -50 -159.7 68.5 176.9

    ORNL_DAAC Short Name: LEAF_CARBON_NUTRIENTS_1106 Version ID: 1 Unique ID: C179003380-ORNL_DAAC

  • A Global Database of Field-observed Leaf Area Index in Woody Plant Species, 1932-2011

    https://cmr.earthdata.nasa.gov/search/concepts/C179130805-ORNL_DAAC.xml
    Description:

    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 between 1932 and 2011. Only site-specific maximum LAI values were included from the sources; values affected by significant artificial treatments (e.g. continuous fertilization and/or irrigation) and LAI values that were low due to drought or disturbance (e.g. intensive thinning, wildfire, or disease), or because vegetation was immature or old/declining, were excluded (Lio et al., 2014). To maximize the generic applicability of the data, original LAI values from source literature and values standardized using the definition of half of total surface area (HSA) are included. Supporting information, such as geographical coordinates of plot, altitude, stand age, name of dominant species, plant functional types, and climate data are also provided in the data file. There is one data file in comma-separated (.csv) format with this data set and one companion file which provides the data sources.

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: -54.2 -164.78 78.42 175.62

    ORNL_DAAC Short Name: LAI_WOODY_PLANTS_1231 Version ID: 1 Unique ID: C179130805-ORNL_DAAC

  • A Global Database of Gas Fluxes from Soils after Rewetting or Thawing, Version 1.0

    https://cmr.earthdata.nasa.gov/search/concepts/C179003657-ORNL_DAAC.xml
    Description:

    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 on rewetting of dry soils, and 116 field laboratory observations focused on thawing of frozen soils studies conducted from 1956 to 2010. Fluxes of carbon dioxide, methane, nitrous oxide, nitrogen oxide, and ammonia (CO2, CH4, N2O, NO and NH3) were compiled from the literature and the flux rates were normalized for ease of comparison. Field observations of gas flux following rewetting of dry soils include events caused by natural rainfall, simulated rainfall in natural ecosystems, and irrigation in agricultural lands. Similarly, thawing of frozen soils include field observations of natural thawing, simulated freezing-thawing events (i.e., thawing of simulated frozen soil by snow removal), and thawing of seasonal ice in temperate and high latitude regions (Kim et al., 2012). Reported parameters include experiment type, location, site type, vegetation, climate, soil properties, rainfall, soil moisture, soil gas flux after wetting and thawing, peak soil gas flux properties, and the corresponding study references. There is one comma-delimited data file.

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: -36.45 -149.63 74.5 160.52

    ORNL_DAAC Short Name: GLOBAL_RTSG_FLUX_V1_1078 Version ID: 1 Unique ID: C179003657-ORNL_DAAC

  • A Global Database of Litterfall Mass and Litter Pool Carbon and Nutrients

    https://cmr.earthdata.nasa.gov/search/concepts/C1227811476-ORNL_DAAC.xml
    Description:

    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 database to support the analysis of global patterns of carbon and nutrients in litterfall and litter pools. Data are included from sources dating from 1827 to 1997. The reported data include the literature reference, general site information (description, latitude, longitude, and elevation), site climate data (mean annual temperature and precipitation), site vegetation characteristics (management, stand age, ecosystem and vegetation-type codes), annual quantities of litterfall (by class, kg m-2 yr-1), litter pool mass (by class and litter layer, kg m-2), and concentrations of nitrogen (N), phosphorus (P), and base cations for the litterfall (g m-2 yr-1) and litter pool components (g m-2). The investigators intent was to compile a comprehensive data set of individual direct field measurements as reported by researchers. While the primary emphasis was on acquiring C data, measurements of N, P, and base cations were also obtained, although the database is sparse for elements other than C and N. Each of the 1,497 records in the database represents a measurement site. Replicate measurements were averaged according to conventions described in Section 5 and recorded for each site in the database. The sites were at 575 different locations.

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: -54.5 -156.7 72.5 176.2

    ORNL_DAAC Short Name: GLOBAL_LITTER_CARBON_NUTRIENTS_1244 Version ID: 1 Unique ID: C1227811476-ORNL_DAAC

  • A Global Database of Soil Phosphorus Compiled from Studies Using Hedley Fractionation

    https://cmr.earthdata.nasa.gov/search/concepts/C179130785-ORNL_DAAC.xml
    Description:

    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 estimates of different forms of naturally occurring soil phosphorus, including labile inorganic P, organic P, occluded P, secondary mineral P, apatite P, and total P, based on the analyses of the various Hedley soil fractions.The recent literature survey (Yang and Post, 2011) was restricted to studies of natural, unfertilized, and uncultivated soils since 1995. Ninety measurements of soil P fractions were identified. These were added to the 88 values from soils in natural ecosystems that Cross and Schlesinger (1995) had compiled. Cross and Schlesinger provided a comprehensive survey on Hedley P data prior to 1995. Measurement data are provided for studies published from 1985 through 2010. In addition to the Hedley P fraction measurement data Yang and Post (2011) also compiled information on soil order, soil pH, organic carbon and nitrogen content, as well as the geographic location (longitude and latitude) of the measurement sites.

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: -42.5 -117.86 63.23 117.6

    ORNL_DAAC Short Name: GLOBAL_PHOSPHORUS_HEDLEY_FRACT_1230 Version ID: 1 Unique ID: C179130785-ORNL_DAAC

  • A-Train Integrated CALIPSO, CloudSat, CERES, and MODIS Merged Product Release B1

    https://cmr.earthdata.nasa.gov/search/concepts/C5769450-LARC_ASDC.xml
    Description:

    The CER-NEWS_CCCM_Aqua-FM3-MODIS-CAL-CS_RelB1 contains the current CERES CCCM data. The CALIPSO-CloudSat-CERES-MODIS (CCCM) data set integrates measurements from the Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations (CALIPSO) Cloud-Aerosol Lidar with Orthogonal Polarization (CALIOP), CloudSat Cloud Profiling Radar (CPR), Clouds and the Earth's Radiant Energy System (CERES), and the Moderate Resolution Imaging Spectroradiometer (MODIS) data. The cloud and aerosol properties from CALIOP and cloud properties from the CPR are matched to a MODIS pixel and then an Aqua CERES footprint. The product contains only the CERES footprint in each scan that has the highest CALIPSO and CloudSat ground track coverage. The product consists of all cloud and aerosol properties derived from MODIS radiances included in the Single Scanner Footprint (SSF) product and computed irradiances included in the Cloud Radiative Swath (CRS) product. Two sets of SSF variables are including the CCCM data. One set covers the entire CERES footprint and the other set is only over CALIOP and CPR ground track. CERES derived top-of-atmosphere (TOA) shortwave, longwave and window irradiances by angular distribution models are also included. In addition, irradiance profiles computed by a radiative transfer model using MODIS, CALIOP, and CPR derived aerosol, clouds, and surface properties are included in the product. Furthermore, MODIS-derived cloud properties from the algorithm that incorporates CALIOP and CPR cloud information are also included. MODIS-derived cloud properties and TOA irradiances derived from CERES radiances are produced by the same algorithm that produces CERES SSF and CRS products. However, the CCCM product should not be considered as a climate data record since various input data product versions and algorithm modifications will occur along the course of the measurement period. The scan and packet numbers unique to the CERES footprint provide the means to match the data to other CERES products, although the CCCM product contains more near nadir CERES footprints compared with SSF and CRS products. The resulting HDF granule contains 24 hours of data.CERES is a key component of the Earth Observing System (EOS) program. The CERES instruments provide radiometric measurements of the Earth's atmosphere from three broadband channels. The CERES missions are a follow-on to the successful Earth Radiation Budget Experiment (ERBE) mission. The first CERES instrument (PFM) was launched on November 27, 1997 as part of the Tropical Rainfall Measuring Mission (TRMM). Two CERES instruments (FM1 and FM2) were launched into polar orbit on board the EOS flagship Terra on December 18, 1999. Two additional CERES instruments (FM3 and FM4) were launched on board EOS Aqua on May 4, 2002. The newest CERES instrument (FM5) was launched on board the Suomi National Polar-orbiting Partnership (NPP) satellite on October 28, 2011.

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: -90 -180 90 180

    LARC_ASDC Short Name: CER-NEWS_CCCM_Aqua-FM3-MODIS-CAL-CS Version ID: RelB1 Unique ID: C5769450-LARC_ASDC