Global Change Master Directorygsfc-gcmduso@mail.nasa.gov502013-05-24T06:45:21ZGCMD Search: [Sensor_Name: Short_Name='GAS CHROMATOGRAPHS']http://mddemo.gsfc.nasa.gov/KeywordSearch/OpenSearch.do 145 0 http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]LC07_RESERVOIR_GHGLBA-ECO LC-07 METHANE AND CARBON DIOXIDE EMISSIONS FROM BALBINA RESERVOIR, BRAZIL-60.7413,-1.984,-59.1671,-0.8592004-07-05T00:00:00Z2006-02-15T00:00:00Z2013-04-12T04:00:00ZThis data set provides flux measurements of methane (CH4) and carbon dioxide (CO2) from surface waters to the atmosphere. It also provides CH4, CO2, and oxygen (O2) concentrations of surface water, ...http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]ASAC_1328The fate of primary production in Antarctic sea ice: the role of metazoan grazers.78.7987,-68.8352,148.0716,-63.89432002-10-29T00:00:00Z2005-02-28T00:00:00Z2012-12-20T05:00:00ZCrustaceans are an important component of the Antarctic marine ecosystem. Large numbers live in or close to the sea-ice cover, using it as a refuge from predation and a source of food. However, the ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]SOLAS_CARIACOMeasurements of oceanic methane, carbon dioxide and ammonia made during research cruises as part of CARIACO in Southern Caribbean Sea beginning in November 1995 and on-going-64.4,10.3,-64.4,10.311995-11-08T00:00:00ZT00:00:00Z2012-10-18T04:00:00ZThis metadata entry refers to measurements of oceanic methane made by Mary Scrantonn, oceanic carbon dioxide made by Yrene Astor and oceanic ammonia made by Kent Fanning during research cruises in ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]ND30_LITTER_PARALBA-ECO ND-30 NUTRIENT ANALYSIS AND GAS FLUXES, FOREST CHRONOSEQUENCES, PARA, BRAZIL-47.7833,-15.9328,-47.3667,-1.26672000-10-01T00:00:00Z2005-01-31T00:00:00Z2012-10-04T04:00:00ZThis 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]ND02_SOIL_GASES_REELBA-ECO ND-02 SOIL GAS AND WATER CONTENT, RAINFALL EXCLUSION, TAPAJOS NATIONAL FOREST-55.0,-2.75,-55.0,-2.751999-12-09T00:00:00Z2002-06-14T00:00:00Z2012-09-27T04:00:00ZThis data set reports soil carbon dioxide (CO2) and nitrous oxide (N2O) concentrations and soil volumetric water content (VWC) from a rainfall exclusion experiment that was conducted at the km 67 ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]TG07_ROOT_MORTALITY_LONGTERMLBA-ECO TG-07 LONG-TERM SOIL GAS FLUX AND ROOT MORTALITY, TAPAJOS NATIONAL FOREST-54.9707,-3.017,-54.9707,-3.0172000-06-04T00:00:00Z2001-07-14T00:00:00Z2012-09-27T04:00:00ZThis data set reports measurements of trace gas fluxes of methane (CH4), nitric oxide (N2O), nitrous oxide (NO), carbon dioxide (CO2) from soils at a study site in the Tapajos National Forest (TNF), ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]LBA_ASFSTGF_PARALBA-ECO ND-02 AGRICULTURAL AND SECONDARY FOREST SOIL TRACE GAS FLUX, PARA: 2001-2004-47.6,-1.1,-47.6,-1.12001-11-01T00:00:00Z2004-06-30T00:00:00Z2012-08-14T04:00:00ZFires set for slash-and-burn agriculture contribute to the current unsustainable accumulation of atmospheric greenhouse gases, and they also deplete the soil of essential nutrients, which compromises ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]LBA_TG07_STGFARMLBA-ECO TG-07 A SOIL TRACE GAS FLUX AND ROOT MORTALITY, TAPAJOS NATIONAL FOREST-54.9707,-3.017,-54.9707,-3.0172000-06-04T00:00:00Z2001-05-15T00:00:00Z2012-08-14T04:00:00ZWe conducted an experiment on sand and clay tropical forest soils to test the short-term effect of root mortality on the soil-atmosphere flux of nitrous oxide, nitric oxide, methane, and carbon dioxide. ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]LBA_TG07_TGFLBA-ECO TG-07 TRACE GAS FLUXES, UNDISTURBED AND LOGGED SITES, PARA, BRAZIL: 2000-2002-54.9707,-3.017,-54.9707,-3.0172000-01-19T00:00:00Z2002-02-26T00:00:00Z2012-08-14T04:00:00ZSelective logging is an extensive land use in the Brazilian Amazon region. We studied the soil-atmosphere fluxes of nitrous oxide (N2O), nitric oxide (NO), methane (CH4), and carbon dioxide (CO2) ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]LBA_TRACE-APRE-LBA TRACE-A DATA-125.0,-40.0,40.0,-4.01992-08-18T00:00:00Z1992-10-26T00:00:00Z2012-08-10T04:00:00ZThis data set contains atmospheric chemistry and meteorological data from the NASA Transport and Atmospheric Chemistry near the Equator-Atlantic (TRACE-A) field study. The NASA TRACE-A study took ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]TG07_TRACE_GAS_PROFILESLBA-ECO TG-07 SEASONAL TRACE GAS PROFILES IN BRAZILIAN AMAZON FORESTS: 2004-2005-60.021,-11.4123,-51.4536,-1.74832004-02-12T00:00:00Z2005-05-12T00:00:00Z2012-07-26T04:00:00ZThis data set provides concentrations of carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O) from air samples collected at several heights on towers at three locations in upland old growth ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]TG08_SOIL_GAS_FERTILIZATIONLBA-ECO TG-08 SOIL GAS FLUX AFTER FOREST AND PASTURE FERTILIZATION, RONDONIA, BRAZIL-62.811,-10.156,-62.811,-10.1561998-02-18T00:00:00Z1999-03-10T00:00:00Z2012-07-26T04:00:00ZThis data set provides nitric oxide (NO), nitrous oxide (N2O), carbon dioxide (CO2) flux measurements, nitrogen (N) and phosphorus (P) pools, net N mineralization and nitrification rates, and measurements ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]TG08_SOIL_GAS_WETTINGLBA-ECO TG-08 TRACE GAS FLUXES FROM WETTED FOREST AND PASTURE SOILS, RONDONIA, BRAZIL-62.811,-10.156,-62.811,-10.1561998-08-17T00:00:00Z1999-08-23T00:00:00Z2012-07-26T04:00:00ZThis data set includes the results of measurements of the soil gas fluxes of nitric oxide (NO), nitrous oxide (N2O), and carbon dioxide (CO2), soil moisture, soil temperature, and soil pools of ammonium ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]saltzman_0636953Methyl Chloride, Methyl Bromide, and Carbonyl Sulfide in Deep Antarctic Ice Cores119.51667,-80.01667,119.51667,-80.01667106.8,-72.46667,106.8,-72.46667148.8,-81.664,148.8,-81.664158.0,-74.666,158.0,-74.6662012-06-19T04:00:00ZThis award supports a project to measure methyl chloride, methyl bromide, and carbonyl sulfide in air extracted from Antarctic ice cores.http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]K087_1989_2012_NZ_1Annual measurements of atmospheric methane concentrations and isotopic ratios from Arrival Heights, Ross Island166.65,-77.8167,166.65,-77.81671989-11-01T00:00:00ZT00:00:00Z2012-06-15T04:00:00ZThe atmospheric trace gas, methane (CH4), affects the radiative heat balance of the earth. The sources of atmospheric methane are not well understood. Large air samples (1000-1400 litres) of methane ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]brook_0739766Atmospheric CO2 over the last 1000 years: A record from the WAIS Divide ice core-112.08,-79.47,-112.08,-79.472007-03-01T00:00:00Z2010-02-25T00:00:00Z2012-05-31T04:00:00ZThese data are a decadally resolved record of atmospheric CO2 concentration for the last 1000 years, obtained from the West Antarctic Ice Sheet (WAIS) Divide shallow ice core.
http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]CSIRO_AR_GASLABConcentration and isotopic measurements of radiatively important gases in the southern atmosphere62.0,-90.0,159.0,-41.01984-05-01T00:00:00ZT00:00:00Z2012-05-31T04:00:00ZAustralian Antarctic Division project #124 monitors the background level of major greenhouse gases, and related species (carbon dioxide, methane, carbon monoxide, nitrous oxide, hydrogen, and carbon ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NSIDC-0504Alkanes in Firn Air Samples, Antarctica and Greenland0.0,-90.0,0.0,-90.0112.09,-79.47,112.09,-79.47-38.3833,72.5833,-38.3833,72.58332005-12-01T00:00:00Z2006-01-31T00:00:00Z2006-06-01T00:00:00Z2006-09-01T00:00:00Z2008-12-01T00:00:00Z2009-01-31T00:00:00Z2012-05-14T04:00:00ZThis data set contains ethane, propane, and n-butane measurements in firn air from the South Pole and the West Antarctic Ice Sheet (WAIS) Divide in Antarctica, and from Summit, Greenland. The WAIS ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NSIDC-0493Methane Concentration and Chronology from the WAIS Divide Ice Core (WDC05A)112.09,-79.47,112.09,-79.472012-05-14T04:00:00ZThis data set provides a high-precision and high-resolution record of atmospheric methane from the West Antarctic Ice Sheet (WAIS) Divide ice core WDC05A, spanning the years 1000 to 1800 C.E. The ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NSIDC-0440Methane Measurements from the GISP2 and Siple Dome Ice Cores-148.81,-81.65,-148.81,-81.65-38.466667,73.583336,-38.466667,73.5833362007-01-01T00:00:00Z2009-12-31T00:00:00Z2012-05-14T04:00:00ZThis data set contains methane measurements made in trapped air in the Holocene sections of two ice cores: the Siple Dome ice core in Antarctica, and the Greenland Ice Sheet Project 2 (GISP2) ice ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]LC07_RESERVOIR_METHANELBA-ECO LC-07 METHANE RELEASES FROM TWO AMAZON HYDRORESERVOIRS, BRAZIL: 2000-2001-63.8535,-8.8034,-49.4167,-4.33332000-06-01T00:00:00Z2001-09-30T00:00:00Z2012-01-03T05:00:00ZThis data set reports methane (CH4) fluxes at the water-air interface and concentrations and isotopic signals of CH4 in the bubbles stirred up from the sediment in Tucurui and Samuel reservoirs in ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]CARIBICCivil Aircraft for the Regular Investigation of the atmosphere Based on an Instrument Container (CARIBIC): Atmospheric Chemical and Physical Processes Measured from Passenger Aircraft-180.0,-90.0,180.0,90.01997-01-01T00:00:00Z2002-12-31T00:00:00Z2004-12-01T00:00:00ZT00:00:00Z2011-12-19T05:00:00ZThe Civil Aircraft for the Regular Investigation of the atmosphere Based on an
Instrument Container (CARIBIC) is an aircraft based scientific project. Before
take-off a special air freight container ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]ECA004Contamination in sediments, bivalves and sponges of McMurdo Sound, Antarctica2001-11-01T00:00:00Z2002-03-30T00:00:00Z2011-12-09T05:00:00ZData consist of environmental contamination deriving from the presence of scientific bases. Negri et al. (2006) examined the concentrations of total hydrocarbons (THC), PCBs, PAHs, in marine sediments ...http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]ASAC_1166Interaction between Carbon and Sulfur Cycles in Antarctic Stratified Lakes and Fjords78.18,-68.48,78.19,-68.472000-11-01T00:00:00Z2000-11-30T00:00:00Z2011-11-29T05:00:00Z---- Public Summary from Project ----
The lakes and fjords of the Vestfold Hills region of Antarctica provide unique ecosystems for studying environmental changes in Antarctica over the past 8000 ...http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]CEAMARC-200708_V3_MARINE_SEDIMENT_SAMPLESCEAMARC marine sediment samples139.333,-67.051,145.333,-65.8122007-12-23T00:00:00Z2008-01-17T00:00:00Z2011-11-04T04:00:00ZMarine sediment samples were obtained from box corer, Smith-MacIntyre and Van Veen grabs.
Samples were named by:
1. CEAMARC site (e.g. 16)
2. Instrument (e.g. box corer = BC; Smith-MacIntyre = GRSM; ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]LBA_ND07_PLFA_SOILSLBA-ECO ND-07 MICROBIAL BIOMASS IN CERRADO SOILS, BRASILIA, BRAZIL-47.8506,-15.9328,-47.7,-15.58332000-06-01T00:00:00Z2001-06-01T00:00:00Z2011-10-12T04:00:00ZThis data set reports the microbial biomass in soil samples collected from the Cerrado, a woodlands-savannah area, in Brasilia, Brazil. Microbial biomass was determined as the total concentration ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]TG07_MANUAL_FLUXLBA-ECO TG-07 SOIL TRACE GAS FLUXES KM 67 SECA-FLORESTA SITE, TAPAJOS NATIONAL FOREST-55.0,-2.75,-55.0,-2.752000-01-12T00:00:00Z2004-04-28T00:00:00Z2011-09-06T04:00:00ZTrace gas fluxes of carbon dioxide, methane, nitrous oxide, and nitric oxide (CO2, CH4, N2O, and NO) from surface soil were measured manually in an undisturbed forest at the Tapajos National Forest ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]USGS-OFR-92-299Molecular and Isotopic Analyses of the Hydrocarbon Gases within Gas Hydrate-Bearing Rock Units of the Prudhoe Bay-Kuparuk River Area in Northern Alaska-150.0,70.0,-148.0,71.01979-05-01T00:00:00Z1990-09-01T00:00:00Z2011-07-01T04:00:00ZInformation about and data from the USGS Open-File Report 92-299 (Molecular
and isotopic analyses of the hydrocarbon gases within gas hydrate-bearing rock
units of the Prudhoe Bay-Kuparuk River area ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]USGS-DDS-59Organic Geochemistry Data of Alaska-170.0,51.0,-130.0,72.02011-07-01T04:00:00ZAbout the Database:
The U. S. Geological Survey Energy Resources Team?s Organic Geochemistry Laboratory is a research laboratory devoted to the investigation of the origin and occurrence of organic ...http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]ASAC_1012Biodiversity and ecophysiology of Antarctic sea-ice bacteria70.0,-68.0,80.0,-65.01996-07-01T00:00:00Z1999-06-30T00:00:00Z2011-04-21T04:00:00ZThe data set includes imformation relevant for the study and description of sea-ice bacteria contains the following dataset subgroups and is organised by REFERENCE number.
1) Isolation data: strain ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]AASE9192The Second Airborne Arctic Stratospheric Expedition (AASE-II) on CD-ROM-180.0,-17.0,20.0,90.01991-10-04T00:00:00Z1992-03-26T00:00:00Z2011-04-15T04:00:00ZThis CD-ROM contains the final data pertaining to the Airborne Arctic Stratospheric Expedition II (AASE-II) which was based in Bangor, Maine between October 1991 and March 1992, with ER-2 flights ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]LBA_REELBA-ECO ND-02 SOIL GAS FLUX, RAINFALL EXCLUSION, KM 67, TAPAJOS NATIONAL FOREST-54.959,-2.857,-54.959,-2.8571998-09-10T00:00:00Z2005-04-10T00:00:00Z2011-02-17T05:00:00ZMoist tropical forests in Amazonia and elsewhere are subjected to increasingly severe drought episodes through the El Nino-Southern Oscillation (ENSO) and possibly through deforestation-driven reductions ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]LBA_FERTLBA-ECO ND-02 TRACE GAS FLUX FROM FOREST SOIL, PARA, BRAZIL: 1999-2001-47.516,-2.983,-47.516,-2.9831999-11-17T00:00:00Z2001-12-12T00:00:00Z2011-02-17T05:00:00ZUnderstanding secondary successional processes in Amazonian terrestrial ecosystems is becoming increasingly important as continued deforestation expands the area that has become secondary forest, ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]USGS_OFR_2010_1241Water Quality in the Yukon River Basin, Alaska, Water Years 2006-2008-152.0,53.0,-132.0,68.02006-01-01T00:00:00Z2008-12-31T00:00:00Z2010-11-23T05:00:00ZThe Yukon River Inter-Tribal Watershed Council and the U.S. Geological Survey developed a water-quality monitoring program to address a shared interest in the water quality of the Yukon River and ...http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]ASAC_235710 year trend of levels of organochlorine pollutants in Antarctic seabirds75.0,-69.0,78.0,-67.02003-12-16T00:00:00Z2004-01-18T00:00:00Z2010-11-15T05:00:00ZMetadata record for data from ASAC Project 2357
See the link below for public details on this project.
---- Public Summary from Project ----
Contaminants like PCBs and DDE have hardly been used Antarctica. ...http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]ASAC_113The Biochemistry, Ecology and Organic Geochemistry of Phaeocystis pouchetii communities of Davis Base, Antarctica77.8,-68.58,77.99,-68.51988-02-02T00:00:00Z1989-02-14T00:00:00Z1989-12-13T00:00:00Z1990-01-12T00:00:00Z1990-10-17T00:00:00Z1991-02-01T00:00:00Z1992-10-21T00:00:00Z1993-01-23T00:00:00Z2010-10-12T04:00:00ZThis metadata record covers ASAC projects 113, 191 and 625. (ASAC_113, ASAC_191, ASAC_625).
The total lipid, fatty acid, sterol and pigment composition of water column particulates collected ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]UM0809_11_dmsp_inputBacterial growth response to DMSP input in Antarctic waters using bromodeoxyuridine（BrdU）labeling techniques57.5,-67.5,89.0,-55.02009-01-13T00:00:00Z2009-02-03T00:00:00Z2010-09-28T04:00:00ZIn this study, to determine bacterial phylotypes which are involved in DMSP transformation and/or degradation, I investigate bacterial growth response to DMSP input in Antarctic waters using bromodeoxyuridine?BrdU?labeling ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]UM0809_9_dms_dmspSouthern Ocean Dimethylsulfide(DMS) and dimethylsulfoniopropionate (DMSP) concentrations, UM080920.0,-70.0,110.0,-35.02009-01-08T00:00:00Z2009-02-03T00:00:00Z2010-09-20T04:00:00ZConcentrations of DMS and DMSP measured with GC-FPD, purge and trap method in the Southern Ocean. The data were obtained during the cruise of TR/V Umitaka-Maru in 2008/2009 Austral summer. Seawater ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]UM0405_9_dms_dmspDimethylsulfide(DMS) and dimethylsulfoniopropionate (DMSP) concentrations, UM040520.0,-70.0,110.0,-35.02004-12-29T00:00:00Z2005-01-22T00:00:00Z2010-09-10T04:00:00ZConcentrations of DMS and DMSP measured with GC-FPD, purge and trap method in the Southern Ocean. The data were obtained during the cruise of TR/V Umitaka-Maru in 2004/2005 Austral summer. Seawater ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]OGI_CO_TRENDSAtmospheric Trends of Carbon Monoxide (CO) by Khalil and Rasmussen-180.0,-90.0,180.0,90.01979-07-01T00:00:00Z1987-12-31T00:00:00Z2010-07-07T04:00:00ZCarbon monoxide (CO) is a weak greenhouse gas but it is an important
precursor to tropospheric ozone (O3) and other trace gases in the
Earth's atmosphere, which can cause widespread changes ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]ECA017PCBs in Antarctica1988-01-01T00:00:00Z1994-12-30T00:00:00Z2010-06-22T04:00:00ZIn a large area of Victoria Land during the 1988?1989, 1989?1990, 1990?1991, and 1991?1992 Italian expeditions analyzed lake sediment and soil samples.
The mean PCB normalized concentration was 240 ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]WDCGGGreenhouse Gas Concentrations and Trends from the World Data Centre for Greenhouse Gases (WDCGG)-180.0,-90.0,180.0,90.01972-01-01T00:00:00ZT00:00:00Z2010-06-15T04:00:00ZThe World Data Centre for Greenhouse Gases (WDCGG) was established at the Japan Meteorological Agency (JMA) in the framework of the World Meteorological Organization (WMO Global Atmosphere Watch (GAW) ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]ECA003PCBs and PAHs in marine sediment, of Admiralty Bay1993-11-01T00:00:00Z1994-03-30T00:00:00Z1997-11-01T00:00:00Z1998-03-30T00:00:00Z1999-11-01T00:00:00Z2000-03-30T00:00:00Z2010-05-26T04:00:00ZThis project focused on the PCBs in sediments of Admiral Bay on King George Island collected in the 1993/1994 austral summer. The individual concentrations of PCB congeners ranged from < 0.05 to 0.57 ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NSIDC-0356Methyl Chloride Measurements from the Siple Dome A Deep Core, Antarctica-148.82,-81.66,-148.82,-81.662004-11-01T00:00:00Z2007-05-31T00:00:00Z2010-03-10T05:00:00ZThis data set is an analysis of methyl chloride concentration measured in air extracted from ice core samples from the Siple Dome A deep core in West Antarctica. In total, forty six (46) ice samples, ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NSIDC-0315Atmospheric CO2 and Climate: Taylor Dome Ice Core, Antarctica158.0,-77.666664,158.0,-77.6666642010-03-09T05:00:00ZUsing new and existing ice core CO2 data from 65 - 30 ka BP a new chronology for Taylor Dome ice core CO2 is established and synchronized with Greenland ice core records to study how high latitude ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]LBA_ND02_SGF_ApeuLBA-ECO ND-02 SOIL TRACE GAS FLUXES IN EASTERN AMAZONIA, PARA, BRAZIL: 1999-2003-47.95,-1.3167,-47.95,-1.31671999-08-19T00:00:00Z2003-04-19T00:00:00Z2010-01-07T05:00:00ZChanges in land-use and climate are likely to alter moisture and substrate availability in tropical forest soils, but quantitative assessment of the role of resource constraints as regulators of soil ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]SOLAS_BG9506Measurements of oceanic and atmospheric methane, CO2 and ammonium made during the Belgica BG9506 research cruise in the North East Atlantic during March, 1995-9.0,44.0,3.0,51.01995-03-03T00:00:00Z1995-03-17T00:00:00Z2009-07-07T04:00:00ZThis metadata entry refers to measurements of oceanic and atmospheric methane made by Robin Keir (OMEX-I project member); oceanic carbon dioxide made by Michel Frankignoulle; and oceanic ammonium ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]ALE_GAGE_AGAGE_NETWORKTrace Gases from the Atmospheric Lifetime Experiment/Global Atmospheric Gases Experiment/Advanced GAGE (ALE/GAGE/GAGE) from CDIAC/DB1001-10.0,52.0,-10.0,52.0145.0,-41.0,145.0,-41.0-124.0,45.0,-124.0,45.0-10.0,53.0,-10.0,53.0171.0,-14.0,171.0,-14.0-59.0,13.0,-59.0,13.0-124.0,41.0,-124.0,41.01978-08-01T00:00:00ZT00:00:00Z2009-06-09T04:00:00ZIn the ALE/GAGE/AGAGE global network program, continuous high frequency gas
chromatographic measurements of two biogenic/anthropogenic gases (methane, CH4;
nitrous oxide, N2O) and eight ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]K087_1996_2008_NZ_1Annual measurements of atmospheric carbon dioxide concentrations and isotopic ratios from Arrival Heights, Ross Island since December 1996166.65,-77.8167,166.65,-77.81671996-12-24T00:00:00ZT00:00:00Z2009-06-06T04:00:00ZCarbon dioxide (CO2) in the earth's atmosphere is considered a trace gas and also a greenhouse gas. Levels of CO2 in the atmosphere are increasing due to anthropogenic activity. Small dry whole air ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]K087_1989_2008_NZ_1Annual measurements of atmospheric methane concentrations and isotopic ratios from Arrival Heights, Ross Island since November 1989166.65,-77.8167,166.65,-77.81671989-11-01T00:00:00ZT00:00:00Z2009-06-06T04:00:00ZThe atmospheric trace gas, methane (CH4), affects the radiative heat balance of the earth. The sources of atmospheric methane are not well understood. Large air samples (1000-1400 litres) of methane ...