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192 Titles Match Your Query
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1. Atmospheric Nitrate Isotopic Analysis at Amundsen-Scott South Pole Station, A Twenty-Five Year Record [NSIDC-0281]
This data set contains snow pit measurements of oxygen isotopes, 17O and 18O, in nitrate and ion concentrations, and surface measurements of oxygen isotopes in nitrate and in ...


2. Atmospheric Nitrate Isotopic Analysis at Amundsen-Scott South Pole Station, A Twenty-Five Year Record, Version 1 [NSIDC-0281_1]
This data set contains snow pit measurements of oxygen isotopes, 17O and 18O, in nitrate and ion concentrations, and surface measurements of oxygen isotopes in nitrate and in ...


3. BASIN TCP Stable Isotope Composition of CO2 in Terrestrial Ecosystems [BASIN_TCP_963_1]
This data set reports stable isotope ratio data of CO2 (13C/12C and 18O/16O) associated with photosynthetic and respiratory exchanges across the biosphere-atmosphere boundary. Measurements were made ...


4. Behavior of Radioactive and Stable Elements in the Environment [MURAMATSU-1993]
Concentrations of some radionuclides(e.g.I-131, I-129, Cs-137) and trace elements(e.g.I, Br, Cs, Sr, U) have been measured in rain water, soil, plants, and fungi. It was found that radionuclides such ...


5. Biogenic Sulfur in the Siple Dome Ice Core [NSIDC-0201]
This data set is a continuous, high-resolution record of biogenic sulfur (methanesulfonate, known as MSA and CH3SO3-) in the 1000 m deep Siple Dome A (SDMA) core, covering 100,000 to 20 years BP. ...


6. Biogenic Sulfur in the Siple Dome Ice Core, Version 1 [NSIDC-0201_1]
This data set is a continuous, high-resolution record of biogenic sulfur (methanesulfonate, known as MSA and CH3SO3-) in the 1000 m deep Siple Dome A (SDMA) core, covering 100,000 to 20 years BP. ...


7. Molecular Level Characterization of Dissolved Organic Carbon and Microbial Diversity in the WAIS Divide Replicate Core - foreman_1141936 [foreman_1141936]
This award supports a detailed, molecular level characterization of dissolved organic carbon and microbes in Antarctic ice cores. NSF PLR Award Abstract #1141936


8. Molecular and Isotopic Analyses of the Hydrocarbon Gases within Gas Hydrate-Bearing Rock Units of the Prudhoe Bay-Kuparuk River Area in Northern Alaska [USGS-OFR-92-299]
Information 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 ...


9. Mount Moulton Isotopes and Other Ice Core Data [NSIDC-0640]
This data set consists of water isotope ratios from the Mt. Moulton ice-trench record, as well as data from the Taylor Dome, EPICA Dome C, Talos Dome, Vostok, and EPICA Dronning Maud Land ice cores.


10. Mount Moulton Isotopes and Other Ice Core Data, Version 1 [NSIDC-0640_1]
This data set consists of water isotope ratios from the Mt. Moulton ice-trench record, as well as data from the Taylor Dome, EPICA Dome C, Talos Dome, Vostok, and EPICA Dronning Maud Land ice cores.


11. Mt. Moulton Ice Trench Mass Spectrometry Data, Antarctica [NSIDC-0472]
This data set contains measurments from co-registered samples from a horizontal trench in the Mt. Moulton Blue Ice Area (BIA) in Antarctica. All 3795 co-registered samples were analyzed for their ...


12. Primary production by phytoplankton in the Canada Basin, 2009 [KPDC_PPPCB_2009]
The Joint Ocean Ice Study (JOIS) was conducted in the Canada Basin from mid September to mid October in 2009. During the period, the primary productivity of phytoplankton was measured at six different ...


13. Primary productivity and photosynthetic activity, UM0708 [UM0708_16_primary_productivity]
Primary productivity and photosynthetic activity measured with 13C method and active fluorometry in the Southern Ocean. The data were obtained during the cruise of TR/V Umitaka-Maru in 2007/2008 ...


14. Primary productivity and photosynthetic activity, UM0809 [UM0809_16_primary_productivity]
Primary productivity and phtosynthetic activity measured with 13C method and active fluorometry in the Southern Ocean. The data were obtained during the cruise of TR/V Umitaka-Maru in 2008/2009 Austral ...


15. Production of phytoplankton and physics and chemistry factors in the Bering and Chukchi Sea, 2007 [KPDC_POPPCFBC_2007]
Oshoro-Maru cruise in 2007 provided an important opportunity to compare the 4 areas with different environmental conditions from the southwestern Bering Sea to the Northern Chukchi Sea. Carbon/nitrogen ...


16. Collaborative Research: The Taylor Glacier, Antarctica, Horizontal Ice Core: Exploring changes in the Natural Methane Budget in a Warming World and Expanding the Paleo-archive [petrenko_1245659]
This award supports a project to use the Taylor Glacier, Antarctica, ablation zone to collect ice samples for a range of paleoenvironmental studies. A record of carbon-14 of atmospheric methane (14CH4) ...


17. Fractionation of gases in polar ice during bubble close-off: firn air Ne, Kr and Xe observations [severinghaus_nsidc0290]
Gas ratios in air withdrawn from polar firn (snowpack) show systematic enrichments of Ne/N2, O2/N2 and Ar/N2, in the firn–ice transition region where bubbles are closing off. Air from ...


18. AMAZE-08 Aerosol Characterization and Meteorological Data, Central Amazon Basin: 2008 [AMAZE-08_1308_1]
This data set provides measurements from the Amazonian Aerosol Characterization Experiment (AMAZE-08) carried out during the wet season from February 4 to March 21, 2008 in the central Amazon Basin. ...


19. SAFARI 2000 C-130 Aerosol and Meteorological Data, Dry Season 2000 [s2k_met_c130_720_1]
The Met Office C-130 research aircraft was based at Windhoek, Namibia, between September 5-16, 2000, where it conducted a series of flights over Namibia as part of the SAFARI 2000 Dry Season Aircraft ...


20. 17O Excess from WAIS Divide, 0 to 25 ka BP, Version 1 [NSIDC-0596_1]
This data set contains the VSMOW-SLAP d17O, d18O, and 17O-excess data from the WAIS Divide Ice Core Project, Siple Dome and Taylor Dome, along with the published and VSMOW-SLAP normalized d17O, d18O, ...


21. Allan Hills Stable Water Isotopes, Version 1 [NSIDC-0541_1]
This data set includes stable water isotope values at 10 m resolution along an approximately 5 km transect through the main icefield of the Allan Hills Blue Ice Area, and at 15 cm within a 225 m ...


22. Carbon-13 Isotopic Composition of Atmospheric Methane in Firn Air, South Pole and Siple Dome, Antarctica, Version 1 [NSIDC-0310_1]
This data set includes records of the delta carbon-13 (δ13C) of methane (CH4) in firn air from the South Pole and trapped in bubbles in a short ice core from Siple Dome, ...


23. Firn Air Isotope and Temperature Measurements from Siple Dome and South Pole, Version 1 [NSIDC-0098_1]
This data set includes d15N, d18O/2, dO2/N2/4, d40Ar/4, d38/Ar/2, d84Kr/48, and d132Xe/96 values for air drawn from the top 15 to 50 m of firn at the South Pole (summer and winter 1998) and a site ...


24. Measurements of Trapped Air from Mullins Valley, Dry Valleys, Antarctica, Version 1 [NSIDC-0597_1]
These data describe the analyses of the elemental and isotopic composition of O2, N2, and Ar and total air content made on the trapped air from three shallow ice cores (<34m depth) collected during ...


25. Methane Isotopes in South Pole Firn Air, 2008, Version 1 [NSIDC-0502_1]
This data set contains depth profiles for delta carbon-13 (δ13C) and delta deuterium (δD) of methane (CH4) in South Pole firn air. The investigators obtained air samples from ...


26. Nitrogen and Oxygen Gas Isotopes in the Siple Dome and Byrd Ice Cores, Antarctica, Version 1 [NSIDC-0407_1]
This data set consists of Gas-isotopic data from the Siple Dome and and Greenland Ice Sheet Project 2 (GISP2) ice cores covering roughly the last 100,000 years (100 ka), consisting of d15N (15N/14N) ...


27. BOREAS TE-05 CO2 Concentration and Stable Isotope Composition [BOREAS_TE5AIRS_321_1]
This table contains data collected by TE05 in the NSA and SSA on air stable istope measurements.


28. BOREAS TE-05 Leaf Carbon Isotope Data [BOREAS_TE5LCISO_323_1]
Contains leaf carbon isotope data collected by TE-05 during 1994.


29. BOREAS TE-05 Tree Ring and Carbon Isotope Ratio Data [BOREAS_TE5TREER_327_1]
Contains tree ring width and C13 isotope cellulose ratio data collected by TE-05.


30. BOREAS TF-04 CO2 and CH4 Soil Profile Data from the SSA [BOREAS_TF4SSASP_363_1]
The TF-04 Soil profile CH4 concentration data.


31. BOREAS TGB-12 Carbon Dioxide Isotopic Content Data over the NSA [BOREAS_TGB12CI_399_1]
Contains TGB-12 soil CO2 flux data for sites in the northern study area.


32. BOREAS TGB-12 Soil Carbon Data: NSA [BOREAS_TGB12SCD_402_1]
Contains the soil carbon data collected by TGB-12 in the northern study area.


33. CARVE: Fire-Related Aerosol and Soil Elemental and Isotopic Composition, Alaska, 2013 [BC_Aerosol_Dynamics_Alaska_1340_1]
This data set provides measurements of the isotopic composition of black carbon and organic carbon aerosols collected at two locations in interior Alaska during the summer of 2013, as part of NASA's ...


34. LBA-ECO CD-02 C and N Isotopes in Leaves and Atmospheric CO2, Amazonas, Brazil [CD02_C_N_ISOTOPES_1097_1]
This data set reports delta 13C/12C results for leaf tissues and atmospheric carbon dioxide (CO2), delta 15N/14N ratios for leaf tissue, and leaf carbon and nitrogen concentrations along a topographical ...


35. LBA-ECO CD-02 Carbon and Oxygen Isotopes in Atmospheric CO2 in the Amazon: 1999-2004 [LBA_CDO2_ATMOSPHERE_ISOTOPES_1011_1]
This data set reports carbon and oxygen stable isotope ratios of atmospheric carbon dioxide (CO2) collected at several forest and pasture sites and in the free troposphere over Amazonia. There are ...


36. LBA-ECO CD-02 Carbon, Nitrogen, Oxygen Stable Isotopes in Organic Material, Brazil [CD02_C_N_O_983_1]
This data set reports the measurement of stable carbon, nitrogen, and oxygen isotope ratios in organic material (plant, litter and soil samples) in forest canopy profiles and pasture (grasses and ...


37. LBA-ECO CD-02 Leaf Level Gas Exchange, Chemistry, and Isotopes, Amazonia, Brazil [LBA_CDO2_LEAF_GAS_EXCHANGE_1010_1]
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 ...


38. LBA-ECO CD-02 Oxygen Isotopes of Plant Tissue Water and Atmospheric Water Vapor [LBA_CDO2_O_H_ISOTOPES_1008_1]
This data set reports the oxygen isotope signatures of water extracted from plant tissue (xylem from the stems and leaf tissue) and of atmospheric water vapor from twelve different sites (including ...


39. LBA-ECO CD-06 Carbon Cycling in Rivers in Amazonas and Acre, Brazil: 2005-2006 [CD06_CARBON_RESPIRATION_1125_1]
This data set provides measured and calculated variables describing the carbon pools in river waters, CO2 respired from the water and total amount of CO2 evaded, dissolved oxygen isotopes (delta 18O-O2), ...


40. LBA-ECO CD-06 Isotopic Composition of Carbon Fractions, Amazon Basin River Water [CD06_C_ISOTOPES_1120_1]
This data set includes measurements of standard geochemical variables, dissolved CO2, dissolved inorganic carbon (DIC), dissolved organic carbon (DOC), fine particulate organic carbon (FPOC), and ...


41. LBA-ECO CD-08 Carbon Isotopes in Belowground Carbon Pools, Amazonas and Para, Brazil [CD08_ISOTOPES_BELOWGROUND_1025_1]
This data set contains carbon isotope signatures from soil organic matter collected from the following sites: the forests of the ZF-2 INPA reserve approximately 80 km north of the city of Manaus, ...


42. LBA-ECO CD-08 Leaf Carbon, Nitrogen, LAI, and Isotope Data, Manaus, Brazil: 2001 [CD08_LEAF_ISOTOPES_MANAUS_1245_1]
This data set provides measurements for carbon (C), nitrogen (N), leaf area index (LAI), and carbon isotope ratio data (13C and 14C) of leaves sampled at the Manaus ZF2 Jacaranda transect area, Amazonas, ...


43. LBA-ECO CD-09 Soil and Vegetation Characteristics, Tapajos National Forest, Brazil [CD09_SOILS_VEG_TAPAJOS_1104_1]
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 ...


44. LBA-ECO LC-21 Soil Characteristics, Logged Areas, Tapajos Forest, Para, Brazil: 2003 [LC21_SOIL_CHARACTERISTICS_1236_1]
This data set provides measurements for soil nutrients from areas that were selectively logged and from control areas in the Tapajos National Forest, Para Western Santarem, Brazil. Data are included ...


45. LBA-ECO ND-07 Carbon and Nitrogen in Cerrado Plants and Soils, Brasilia: 1999-2000 [ND07_15N_LEAVES_SOIL_1121_1]
This data set provides (1) delta 15N ratios and nitrogen concentrations for foliar samples and (2) delta 13C and delta 15N ratios as well as carbon and nitrogen concentrations for soil samples collected ...


46. LBA-ECO ND-11 Litter Decomposition, Carbon, and Nitrogen Dynamics in Agroforestry [LBA_ND11_NTLL_915_1]
This data set contains the results of an experiment to determine litter decomposition and dynamics of carbon and nitrogen release from plant litter of differing qualities which occur in combination ...


47. LBA-ECO ND-30 Nutrient Analysis and Gas Fluxes, Forest Chronosequences, Para, Brazil [ND30_LITTER_PARA_1129_1]
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) ...


48. SAFARI 2000 Plant and Soil C and N Isotopes, Southern Africa, 1995-2000 [s2k_plant_soil_c_n_783_1]
This data set contains measurements of the concentration and stable carbon (13C/12C) and nitrogen (15N/14N) isotope ratios of plant (leaves, roots and fungi) and soil samples from southern Africa. ...


49. Alkanes in Firn Air Samples, Antarctica and Greenland, Version 1 [NSIDC-0504_1]
This 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 ...


50. Gases in Firn Air and Shallow Ice at the WAIS Drilling Site, Antarctica, Version 1 [NSIDC-0412_1]
This data set contains trace gas measurements of air extracted from ice core samples from the West Antarctic Ice Sheet Divide A core (WAIS-D 05A). The WAIS A core was dry-drilled at the WAIS site ...


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