Global Change Master Directory gsfc-gcmduso@mail.nasa.gov 50 2013-06-19T10:10:01Z http://mddemo.gsfc.nasa.gov/KeywordSearch/OpenSearch.do 166 0 http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]arctic_plant_and_ecosystem_respiration -149.33,68.62,-149.31,68.63 2010-05-20T00:00:00Z 2012-08-10T00:00:00Z 2013-06-07T04:00:00Z

Measurements of leaf, wood, moss, lichen, root and whole ecosystem respiration made in tussock tundra near Imnavait Creek during the growing seasons of 2010, 2011 and 2012. Measurements were made ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]ASAC_773 158.86,-54.61,158.86,-54.61 1994-09-01T00:00:00Z 1996-03-31T00:00:00Z 2013-02-21T05:00:00Z

In this study the nitrogen sources of plants were investigated for Macquarie Island in an ecosystem influenced by large amounts of animal-derived nitrogen. Different plant communities were studied ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]BOREAS_RSS4LIB -105.05,53.87,-104.64,53.98 1994-07-25T00:00:00Z 1994-08-05T00:00:00Z 2013-01-24T05:00:00Z

The BOREAS RSS-04 team focused its efforts on deriving estimates of LAI and leaf chlorophyll and nitrogen concentrations from remotely sensed data for input into the Forest BGC model. This data set ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]USDA0395 -177.1,13.71,-61.48,76.63 1988-01-01T00:00:00Z 1995-12-31T00:00:00Z 2013-01-18T05:00:00Z

The objective of the "Carbon Sequestration by Switchgrass Managed as an Energy Crop" dataset is to monitor carbon sequestration over time in switchgrass and to compare the economic and carbon sequestration ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]CBP_PSDB -80.53758,36.66154,-74.5759,42.979 1984-01-01T00:00:00Z 1998-12-31T00:00:00Z 2012-12-21T05:00:00Z

The Chesapeake Bay Program Nutrient Point Source Database contains data from about 600 nutrient dischargers in the Bay watershed. This database provides facility information, average flow data, average ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]WRIR_98_4113 -122.0,45.0,-119.0,48.0 1986-01-01T00:00:00Z 1991-11-01T00:00:00Z 2012-12-21T05:00:00Z

Surface-water-quality conditions were assessed in the Yakima River Basin, which drains 6,155 square miles of mostly forested, range, and agricultural land in Washington. The Yakima River Basin is ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]WIR_98_4105 -122.7,42.3,-122.5,43.6 1996-09-09T00:00:00Z 1996-09-13T00:00:00Z 2012-12-12T05:00:00Z

In September 1996, a water-quality study was done by the U.S. Geological Survey, in coordination with the U.S. Forest Service, in headwater streams of Steamboat Creek, a tributary to the North Umpqua ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]WRIR_01_4062 -123.375,45.25,-122.625,45.75 1991-05-01T00:00:00Z 1997-10-01T00:00:00Z 2012-12-12T05:00:00Z

The calibration of a model of flow, temperature, and water quality in the Tualatin River, Oregon, originally calibrated for the summers of 1991 through 1993, was extended to the summers of 1991 through ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]WRIR_98_4198 -124.96,41.58,-116.06,46.68 1918-01-01T00:00:00Z 1996-01-01T00:00:00Z 2012-12-12T05:00:00Z

The Williamson River Basin, located in south-central Oregon, has a drainage area of approximately 3,000 square miles. The Sprague River, which flows into the Williamson River Basin, has a drainage ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]WRIR_97_4268 -124.0,43.5,-121.5,46.0 1996-03-01T00:00:00Z 1996-11-30T00:00:00Z 2012-11-29T05:00:00Z

Water quality samples were collected at sites in 16 randomly selected agricultural and 4 urban subbasins as part of Phase III of the Willamette River Basin Water Quality Study in Oregon during 1996. ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]LTER_CDR018 -93.0,45.0,-93.0,45.0 1988-01-01T00:00:00Z T00:00:00Z 2012-11-29T05:00:00Z

LTER - Long-Term Ecological Research Program/Cedar Creek Natural History Area (CDR) LTER/CDR018 [Summary adapted from the LTER Core Data Set Catalog]: This is the new ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]LTER_CDR019 -93.0,45.0,-93.0,45.0 1989-01-01T00:00:00Z T00:00:00Z 2012-11-29T05:00:00Z

LTER - Long-Term Ecological Research Program/Cedar Creek Natural History Area (CDR) LTER/CDR019 [Summary adapted from the LTER Core Data Set Catalog]: This experiment ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]USDA0098 -177.1,13.71,-61.48,76.63 1984-01-01T00:00:00Z 1992-12-31T00:00:00Z 2012-11-29T05:00:00Z

The dataset consists of data resulting from an experimental study involving seven cropping systems (three monoculture, two 2-year, and two 4-year rotations) with three rates of N fertilizer. Data ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]ND30_LITTER_PARA -47.7833,-15.9328,-47.3667,-1.2667 2000-10-01T00:00:00Z 2005-01-31T00:00:00Z 2012-10-04T04:00:00Z

This data set provides fine litterfall mass and nutrient concentrations from samples collected at chronosequences established at Sao Francisco do Para and Capitao Poco, Para, Brazil. Nitrogen (N) ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NASA_LIS_DATA -180.0,-90.0,180.0,90.0 2012-09-04T04:00:00Z

The Land Information System (LIS) provides collection of sample data for demonstration of LIS code. The original source of each data set is given whenever possible. LIS does not endorse the validity, ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]LBA_TG07_LDTNF -54.9707,-3.017,-54.9707,-3.017 2000-03-01T00:00:00Z 2001-02-21T00:00:00Z 2012-08-10T04:00:00Z

Once the weathering of parent material ceases to supply significant inputs of phosphorus (P), vegetation depends largely on the decomposition of litter and soil organic matter and the associated mineralization ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]CD02_C_N_ISOTOPES -60.2091,-2.609,-60.0,-2.5 2004-08-02T00:00:00Z 2006-10-21T00:00:00Z 2012-07-26T04:00:00Z

This data set reports delta 13C/12C results for leaf tissues and atmospheric carbon dioxide (CO2), 15N/14N ratios for leaf tissue, and leaf carbon and nitrogen concentrations along a topographical ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]CD09_SOILS_VEG_TAPAJOS -55.2094,-4.0478,-54.9081,-2.8381 1999-11-01T00:00:00Z 1999-11-29T00:00:00Z 2012-07-26T04:00:00Z

This data set reports the results of soil and vegetation surveys at four distinct areas within the Tapajos National Forest (TNF), 50 to 100 km south of Santarem, Para, Brazil, in November 1999. At ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]LGP 168.0,-86.0,180.0,-72.0 1989-01-01T00:00:00Z T00:00:00Z 2012-07-13T04:00:00Z

This record relates to the Australian component of the Latitudinal Gradient Project. The LGP is largely a New Zealand, US and Italian venture, but a small contribution has been made by Australian ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]ASAC_1313_Baseline 110.0,-66.5,111.0,-66.0 1999-09-30T00:00:00Z 2000-03-31T00:00:00Z 2012-07-12T04:00:00Z

This metadata record describes supplementary material to accompany the listed publication, and the data described in the paper and the supplementary material relates to AAS (ASAC) project 1313, as ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]TG07_SOIL_NUTRIENTS -54.9707,-3.017,-54.9707,-3.017 1999-04-20T00:00:00Z 2000-04-20T00:00:00Z 2012-06-19T04:00:00Z

This data set reports phosphorus (P), carbon (C), and nitrogen (N) nutrient pool concentrations for forest soils and roots and P pool concentrations for forest floor litter, soil solutions, and microbial ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]model_biome_bgc_law -121.62,44.49,-121.62,44.49 2003-04-15T00:00:00Z 2003-04-15T00:00:00Z 2012-05-23T04:00:00Z

This archived model product contains the directions, executables, and procedures for running Biome-BGC, Version 4.1.2, to recreate the results of Law BE, Sun OJ, Campbell J, Van Tuyl S, Thornton PE, ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]ARCSS052 -150.0,68.0,-148.0,69.0-149.0,69.0,-148.0,70.0 1921-01-01T00:00:00Z 2144-12-31T00:00:00Z 1995-05-01T00:00:00Z 1995-08-31T00:00:00Z 2012-05-11T04:00:00Z

This data set contains model input and output data for four simulations of varying time periods and spatial coverage. The first two simulations are for acidic tussock tundra in the Toolik Lake region ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]litter_decomp -180.0,-47.31,179.41,76.63 1993-01-01T00:00:00Z 2000-11-21T00:00:00Z 2012-03-16T04:00:00Z

The results of published and unpublished experiments investigating the impacts of elevated carbon dioxide on the chemistry (nitrogen and lignin concentration) of leaf litter and the decomposition ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]white_parameters -180.0,-90.0,180.0,90.0 1947-06-15T00:00:00Z 2000-06-21T00:00:00Z 2012-03-15T04:00:00Z

Ecosystem simulation models use descriptive input parameters to establish the physiology, biochemistry, structure, and allocation patterns of vegetation functional types, or biomes. For single-stand ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]ASAC_194 158.0,-54.5,159.0,-54.0 1990-12-01T00:00:00Z 1991-01-31T00:00:00Z 2011-11-22T05:00:00Z

The nitrogen fixing biota of Macquarie Island are dominated by cyanobacteria growing epiphytically or symbiotically with plants or lichens. Highest rates of acetylene reduction (N-fixation) were found ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]ACCP_LEAFCHEM -121.763,29.7,-68.7356,45.2222 1992-06-18T00:00:00Z 1993-05-27T00:00:00Z 2011-10-25T04:00:00Z

As part of NASA's Accelerated Canopy Chemistry Program (ACCP) analyses were performed for the determination of carbon constituents and nitrogen content in fresh forest foliage. Samples were analyzed ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]ACCP_CANOPYCHEM -122.048,37.4015,-122.048,37.4015 1992-11-06T00:00:00Z 1993-03-15T00:00:00Z 2011-10-25T04:00:00Z

This data set describes the nitrogen and chlorophyll content of small, monospecific canopies formed from seedlings of Douglas-fir (Pseudotsuga menziesii) and bigleaf maple (Acer macrophyllum). The ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]BOREAS_TGB7MONO -105.12,53.92,-104.69,53.99 1994-05-24T00:00:00Z 1994-09-19T00:00:00Z 2011-09-27T04:00:00Z

The TGB-08 team collected data to investigate the controls over non-methane hydrocarbon (NMHC) fluxes from boreal forest tree species. This data set contains measurements of monoterpene concentrations ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]BOREAS_TE2FLRSP -98.67,55.88,-98.48,55.93 1994-06-01T00:00:00Z 1994-09-14T00:00:00Z 2011-08-22T04:00:00Z

The BOREAS TE-02 team collected several data sets in support of its efforts to characterize and interpret information on the respiration of the foliage, roots, and wood of boreal vegetation. This ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]BOREAS_TE2RTRSP -98.67,55.88,-98.48,55.93 1994-05-28T00:00:00Z 1994-09-12T00:00:00Z 2011-08-22T04:00:00Z

The BOREAS TE-02 team collected several data sets in support of its efforts to characterize and interpret information on the respiration of the foliage, roots, and wood of boreal vegetation. This ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]BOREAS_TE2STSAP -98.67,55.88,-98.29,55.93 1994-05-24T00:00:00Z 1994-09-25T00:00:00Z 2011-08-22T04:00:00Z

The BOREAS TE-02 team collected several data sets in support of its efforts to characterize and interpret information on the respiration of the foliage, roots, and wood of boreal vegetation. This ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]BOREAS_TE9BIOAV -98.67,55.84,-98.29,55.91 1994-02-01T00:00:00Z 1994-09-18T00:00:00Z 2011-08-22T04:00:00Z

The BOREAS TE-09 team collected several data sets related to chemical and photosynthetic properties of leaves. This data set contains canopy biochemistry data collected in 1994 in the NSA at the YJP, ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]BOREAS_TE9BIOPD -98.67,55.84,-98.29,55.91 1994-02-01T00:00:00Z 1994-09-18T00:00:00Z 2011-08-22T04:00:00Z

The BOREAS TE-09 team collected several data sets related to chemical and photosynthetic properties of leaves. This data set contains canopy biochemistry data collected in 1994 in the NSA at the YJP, ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]BOREAS_TE09PND -98.67,55.84,-97.34,56.0 1994-05-24T00:00:00Z 1994-09-19T00:00:00Z 2011-08-22T04:00:00Z

The BOREAS TE-09 team collected several data sets related to chemical and photosynthetic properties of leaves in boreal forest tree species. This data set describes the relationship between Photosynthetically ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]LBA_CDO2_LEAF_GAS_EXCHANGE -60.1152,-3.0202,54.5792,2.0 1999-10-28T00:00:00Z 2003-12-17T00:00:00Z 2011-06-13T04:00:00Z

This data set reports leaf gas flux and leaf properties from samples collected from trees, liana, pasture saplings, and pasture grass located at eight different sampling locations in the states of ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]ARK.Czarny 20.05,49.01,20.15,49.1 1968-01-01T00:00:00Z T00:00:00Z 2011-05-10T04:00:00Z

This experiment began in 1968 on a natural grassland area of Poland. The site was arable crops to 1945 and later returned to grassland. The land use of this area is permanent meadow now. Treatments ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]ACI.Meckenheim 6.9,30.59,7.1,30.61 1958-01-01T00:00:00Z T00:00:00Z 2011-04-15T04:00:00Z

This experiment began in 1958 at a site that has been in arable crops for more than 100 years. The climate of the site is cool temperate, with mean annual temperature of 9.1 deg. C, and Mean annual ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]HAU.FYM 75.75,29.17,75.77,29.19 1967-01-01T00:00:00Z T00:00:00Z 2011-03-21T04:00:00Z

This experiment began in 1967 at a site that was originally shrubland. The project consists of one rotation: Pearl millet-wheat. Treatments = 1) Absolute control, 2) Farm yard manure added, 3) N-fertilizer ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]ARCSS097 -150.6,68.55,-148.4,70.44 1921-01-01T00:00:00Z 2100-12-31T00:00:00Z 2010-12-17T05:00:00Z

This data set includes output data from the MBL-GEM III model for tussock tundra in the Kuparuk River watershed of Alaska. The model outputs 154 different variables for 123 10 km x 10 km grid cells, ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]ARCSS096 -149.5,68.5,-149.5,68.5 1921-01-01T00:00:00Z 2100-12-31T00:00:00Z 2010-12-17T05:00:00Z

This data set includes output data from the MBL-GEM III model for a typical tussock-tundra hillslope. The model outputs 154 different variables for 20 modeled square-meter plots. Modeled plots ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]EFI_RECOGNITION -11.0,35.0,30.0,72.0 1999-04-01T00:00:00Z 2002-03-31T00:00:00Z 2010-12-01T05:00:00Z

The first objective of this FAIR project (CT98-4124) is to identify the potential causes of recent growth trends in European forests and to investigate their interactions with focus on the relative ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]ASAC_1022 158.8,-54.75,158.9,-54.55 1996-09-30T00:00:00Z 2001-03-31T00:00:00Z 2010-07-26T04:00:00Z

Metadata record for data from ASAC Project 1022 See the link below for public details on this project. ---- Public Summary from Project ---- Nitrogen ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]LTER_CDR007 -93.0,45.0,-93.0,45.0 1983-01-01T00:00:00Z T00:00:00Z 2009-08-28T04:00:00Z

LTER - Long-Term Ecological Research Program/Cedar Creek Natural History Area (CDR) LTER/CDR007 [Summary adapted from the LTER Core Data Set Catalog]: The purpose of ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]LTER_CDR010 -93.0,45.0,-93.0,45.0 1983-01-01T00:00:00Z T00:00:00Z 2009-08-28T04:00:00Z

LTER - Long-Term Ecological Research Program/Cedar Creek Natural History Area (CDR) LTER/CDR010 [Summary adapted from the LTER Core Data Set Catalog]: The purpose of ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]LTER_CDR012 -93.0,45.0,-93.0,45.0 1984-01-01T00:00:00Z T00:00:00Z 2009-08-28T04:00:00Z

LTER - Long-Term Ecological Research Program/Cedar Creek Natural History Area (CDR) LTER/CDR012 [Summary adapted from the LTER Core Data Set Catalog]: The purpose of ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]LTER_CDR013 -93.0,45.0,-93.0,45.0 1985-01-01T00:00:00Z T00:00:00Z 2009-08-28T04:00:00Z

LTER - Long-Term Ecological Research Program/Cedar Creek Natural History Area (CDR) LTER/CDR013 [Summary adapted from the LTER Core Data Set Catalog]: The purpose of ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]LTER_CDR014 -93.0,45.0,-93.0,45.0 1986-01-01T00:00:00Z T00:00:00Z 2009-08-28T04:00:00Z

LTER - Long-Term Ecological Research Program/Cedar Creek Natural History Area (CDR) LTER/CDR014 [Summary adapted from the LTER Core Data Set Catalog]: This experiment ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]LTER_CDR015 -93.0,45.0,-93.0,45.0 1987-01-01T00:00:00Z T00:00:00Z 2009-08-28T04:00:00Z

LTER - Long-Term Ecological Research Program/Cedar Creek Natural History Area (CDR) LTER/CDR015 [Summary adapted from the LTER Core Data Set Catalog]: The purpose of ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]LTER_CDR016 -93.0,45.0,-93.0,45.0 1987-01-01T00:00:00Z T00:00:00Z 2009-08-28T04:00:00Z

LTER - Long-Term Ecological Research Program/Cedar Creek Natural History Area (CDR) LTER/CDR016 [Summary adapted from the LTER Core Data Set Catalog]: Objective: to ...