| 67 Titles Match Your Query |
Showing 1 through 50 of 67
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1.
O2/Ar of surface water measured using an equilibrator inlet mass spectrometer [KPDC_OSWMUEIMS_2012]
O2/Ar in seawater, pumped from the intake at 7 m below sea level, was measured using an equilibrator inlet mass spectrometer. The mass spectrometer measured a series of dissolved gases including O2 ...
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2.
Collaborative Research: Molecular Level Characterization of Organic Matter in Ice Cores using High-resolution FTICR mass spectrometry [hatcher_0739684]
This award supports a project to fully develop the analytical protocols needed to exploit a relatively new technique for the analysis of soluble organic matter in ice core samples. The technique couples ...
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3.
AAV30708 Biogeochemistry - EIMS Data Collected on the CEAMARC Cruise of the Aurora Australis 2007-2008 [CEAMARC_CASO_200708_V3_Biogeochemistry_EIMS]
Continuous underway measurements of sea surface (7 metres depth)dissolved gasses (co2, o2, argon, nitrogen)by quadrupole mass spectrometry (Electron Impact Mass Spectrometry - EIMS).
ASCII encoded. ...
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4.
LBA-ECO ND-30 NUTRIENT ANALYSIS AND GAS FLUXES, FOREST CHRONOSEQUENCES, PARA, BRAZIL [ND30_LITTER_PARA]
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) ...
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5.
LBA-ECO CD-02 C AND N ISOTOPES IN LEAVES AND ATMOSPHERIC CO2, AMAZONAS, BRAZIL [CD02_C_N_ISOTOPES]
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 ...
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6.
Carbon and Nitrogen uptake rates of phytoplankton in the Chukchi sea and Canada Basin, 2010 [KPDC_CNURPCSCB_2010]
The first Arctic cruise of ARAON was conducted in the Chukchi Sea and Canada Basin from mid July to mid August in 2010. During the period, the carbon and nitrogen production rates of phytoplankton ...
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7.
Environmental conditions and C and N uptakes of phytoplankton in Russian Chukchi sea, 2009 [KPDC_ECCNUPRC_2009]
It is very important to study the Chukchi Sea and Arctic Ocean in order to understand the global marine ecosystems responding to the current climate changes, but there have been not much study because ...
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8.
Environmental conditions and C and N uptakes of phytoplankton in the Bering and Chukchi seas, 2008 [KPDC_ECCNPBC_2008]
As a Chinese IPY event, the 3rd Chinese National Arctic Research Expedition (CHINARE) was conducted from the Chukchi Sea to the central Arctic Ocean from late July to early September in 2008. During ...
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9.
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 ...
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10.
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 ...
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11.
Methyl Chloride, Methyl Bromide, and Carbonyl Sulfide in Deep Antarctic Ice Cores [saltzman_0636953]
This award supports a project to measure methyl chloride, methyl bromide, and carbonyl sulfide in air extracted from Antarctic ice cores.
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12.
Oxygen and Deuterium Isotope Measurements from Siberia, 2002-2004 [ARCSS157]
Investigators performed a stable isotope analysis of rain, snow, the Kolyma River, and a local stream near Cherskii, Siberia from 30 June 2002 through 27 April 2004. As part of the Russian-American ...
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13.
Seawater Chemistry from the North Pole Environmental Observatory, 2000-2005 [ARCSS095]
This data set includes diverse measurements of seawater chemistry along with supplementary conductivity, temperature, depth (CTD); pressure; salinity; potential temperature; and density data from ...
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14.
Alkanes in Firn Air Samples, Antarctica and Greenland [NSIDC-0504]
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 ...
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15.
Gases in Firn Air and Shallow Ice at the WAIS Drilling Site, Antarctica [NSIDC-0412]
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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16.
Multiple Isotope Analysis of Sulfate in the West Antarctic Ice Sheet Divide Ice Core [NSIDC-0479]
This data set contains measurements of multiple sulfur and oxygen isotopes from sulfates, from an ice core drilled at the West Antarctic Ice Sheet (WAIS) Divide site in 2005. The initial sulfate measurements, ...
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17.
Trapped Gas Composition and Chronology of the Vostok Ice Core [NSIDC-0311]
This data set includes a time scale for the Vostok ice core, retrieved from Vostok Station on the East Antarctic Plateau. This chronology is derived by orbitally tuning to molecular oxygen to nitrogen ...
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18.
Nitrogen and Oxygen Gas Isotopes in the Siple Dome and Byrd Ice Cores, Antarctica [NSIDC-0407]
PARENT DIF
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) ...
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19.
Hydrographic Parameters from Fram Strait and Denmark Strait, 1998 [ARCSS105]
This data set includes data for the following parameters: dissolved barium; bottom depth; pressure; temperature; salinity; dissolved oxygen; phosphate; siliceous acid; nitrate; nitrite; and oxygen ...
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20.
Thickness, Salinity and Stable Isotope Composition of Sea Ice Samples from the Laptev Sea, 1999 [ARCSS041]
This data set consists of sea ice measurements including thickness, salinity, and stable isotope composition from the Laptev Sea. The data were obtained during the Transdrift VI expedition to the ...
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21.
Iron, manganese and aluminium in East Antarctic snow and ice cores [trace_metals]
Iron, manganese and aluminium concentrations have been determined in modern and ancient East Antarctic snow from sea-ice and continental sites. Modern snow samples were collected from sites in Prydz ...
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22.
CEAMARC marine sediment samples [CEAMARC-200708_V3_MARINE_SEDIMENT_SAMPLES]
PARENT DIF
Marine 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; ...
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23.
BOREAS TGB-12 SOIL CARBON DATA: NSA [BOREAS_TGB12SCD]
The BOREAS TGB-12 team made measurements of soil carbon inventories, carbon concentration in soil gases, and rates of soil respiration at several sites to estimate the rates of carbon accumulation ...
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24.
BOREAS TF-04 CO2 AND CH4 SOIL PROFILE DATA FROM THE SSA [BOREAS_TF4SSASP]
The BOREAS TF-04 team measured distributions of carbon dioxide (CO2) and methane (CH4) concentrations for the upper 5 meters of soil and unsaturated zone at the mature stand, upper 6 m at the 20-year ...
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25.
BOREAS TE-05 CO2 CONCENTRATION AND STABLE ISOTOPE COMPOSITION [BOREAS_TE5AIRS]
The BOREAS group TE-05 collected measurements in the NSA and SSA on gas exchange, gas composition and tree growth. This data set contains measurements of the concentration and stable carbon (13C/12C) ...
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26.
BOREAS TE-05 LEAF CARBON ISOTOPE DATA [BOREAS_TE5LCISO]
The BOREAS group TE-05 collected measurements in the NSA and SSA on gas exchange, gas composition and tree growth. This documentation describes leaf carbon isotope data that were collected in 1993 ...
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27.
Carbon-Isotopic Composition of Atmospheric CO2 since the Last Glacial Maximum [NSIDC-0108]
These data describe the concentration and carbon-isotopic composition (d13CO2) of atmospheric CO2 from air trapped in ice between 27,000 and 1,300 years before present from Taylor Dome, Antarctica. ...
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28.
LBA-ECO CD-02 CARBON AND OXYGEN ISOTOPES IN ATMOSPHERIC CO2 IN THE AMAZON: 1999-2004 [LBA_CDO2_ATMOSPHERE_ISOTOPES]
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 ...
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29.
BASIN TCP STABLE ISOTOPE COMPOSITION OF CO2 IN TERRESTRIAL ECOSYSTEMS [BASIN_TCP]
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 ...
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30.
Distribution of Particulate organic carbon and nitrogen and its stable isotope ratio off Lützow-Holm Bay, Antarctica [UM0809_7_distribution_organic]
Water samples from 5 depths (0-100 m) were collected by Niskin bottles at 9 stations (L1, L3, L5, L9, L12, L37, L33, ?-10, ?-7) off L?tzow-Holm Bay during Umitaka-maru cruise (Jan-feb. 2009). The ...
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31.
Delta O18 data during the cruise of TR/V Umitaka-Maru, UM0809 [UM0809_5_delta_O18_data]
The relative proportion of principal stable oxygen isotopes of oxygen in seawater (usually quoted as delta O18, defined as the ratio of O18 to O16 relative to Vienna Standard Mean Ocean Water) is ...
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32.
Southern Ocean vertical distribution of nitrite concentration data during the cruise of TR/V Umitaka-Maru, UM0809 [UM0809_34_nitrite_maximum]
The vertical distribution of nitrite concentration and the result of 15N incubation experiment in the Southern Ocean. The data were obtained at sampling stations L1, L9, III-5 during the cruise of ...
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33.
Distribution of Paticulate organic carbon and nitrogen and its stable isotope ratio off Lützow-Holm Bay [UM0708_7_distribution_organic]
Water samples from 7 depths (0-200 m) were collected by Niskin bottles at 10 stations (L1, L4, L5, G5, G11, G13, G14, Stn. Argos, S4, S5) off L?tzow-Holm Bay during Umitaka-Maru cruise (Dec. 2007 ...
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34.
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 ...
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35.
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 ...
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36.
The distribution of dissolved iron [UM0405_8_dissolved_iron]
Seawater samples were collected and stored for the distribution of dissolved iron. The samples have not yet been analyzed.
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37.
O2/N2/Ar ratios, and the isotopic composition of O2 and N2, in firn air from the Megadunes site, Antarctica [O2_N2_Ar_Megadunes]
In a program led by Jeffrey Severinghaus, Scripps Institiution of Oceanography,
firn air samples were collected at the Megadunes site, Antarctica. This site
is marked by actively migrating ...
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38.
O2/N2/Ar ratios, and the isotopic composition of O2 and N2, in ice from Mullins Valley, Dry Valleys, Antarctica [gas_comp_Dry_Valleys]
This data set contains preliminary results of the study of the isotopic
composition of O2 and N2, and the O2/N2/Ar ratio, in ice samples from Mullins
Valley, Dry Valleys, Antarctica. ...
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39.
The concentration of O2, N2, and Ar, and the isotopic composition of N2 and O2, in GISP2 (reanalysis of selected samples) [Conc_isotopic_O2_N2_Ar_GISP2]
This data set includes values of the O2/N2/Ar ratio, and the d15N an d18O, of
trapped gases from about 30 depths in the GISP2 ice core between 40-100 ka.
Samples were analyzed in 2005.
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40.
Nd and Sr Isotopic Data from Surface and Soil Salts of the Dry Valleys, Antarctica [Salt_Nd_and_Sr]
This dataset contains Neodymium (Nd) and Strontium (Sr) isotopic data from
water soluble salts and associated host soils, cobbles, and surface volcanic
deposits in the Dry Valleys of Antarctica ...
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41.
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 ...
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42.
IPY-014 - Stable oxygen isotope and dissolved barium samples from Arctic Synoptic Basin-Wide Oceanography (ASBO) Project [GB-NERC-BAS-PDC-00462]
These are samples of dissolved barium and stable isotopes of oxygen (d-18O), taken on two cruises in the summers of 2007 and 2008, in collaboration between the NERC-funded Arctic Synoptic Basin-wide ...
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43.
Oxygen isotope levels derived from sea water samples, 1994-1997, Georges Bank region, GLOBEC [delta_O_18_GB]
Water bottle sampling for oxygen isotope analyses were conducted
during 25 cruises to the Georges Bank/Gulf of Maine region 1994-1997.
The isotope ratio H2O18/H2O16 ...
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44.
Measurements of atmospheric aerosols from air and snow samples and meteorological measurements taken from a remote site on the Ross Ice Shelf [K093_1989_1990_NZ_1]
The chemistry of air and snow at a remote site on the Ross Ice Shelf was conducted to study atmospheric aerosol particulates which are of interest as they may be important regulators of climate and ...
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45.
Measurements of carbon dioxide concentrations and isotopic ratios from air samples collected at the surface and at altitude between New Zealand and the South Pole to determine if the Southern Ocean is a carbon sink [K087_1998_2004_NZ_1]
Carbon dioxide concentrations between New Zealand and the South Pole were found to vary for periods of several years suggesting that the Southern Ocean is acting as a sink. The role of the Southern ...
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46.
Analysis of Siple Dome Ice Core: Carbonyl Sulfide (COS), Methyl Chloride (CH3Cl), and Methyl Bromide (CH3Br) [NSIDC-0279]
This data set is part of the WAISCORES (West Antarctic Ice Sheet cores) project, research funded by the National Science Foundation (NSF) and designed to improve understanding of how the West Antarctic ...
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47.
Antarctic Ice Cores: Methyl Chloride and Methyl Bromide [NSIDC-0313]
This data set is an analysis of methyl chloride (CH3Cl) and methyl bromide (CH3Br) in Antarctic ice core samples. Investigators reported mixing ratios of methyl chloride gas extracted from samples ...
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48.
Chemistry and Dynamics of Atmospheric Oxidation of Volcanic Sulfur [Cole-Dai0337933]
This dataset contains chemical measurements of volcanic sulfate deposits in
Antarctic snow, in a collaborative project between South Dakota State
University (SDSU, Jihong Cole-Dai, PI) ...
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49.
Firn Air Inert Gas and Oxygen Observations from Siple Dome, 1996, and the South Pole, 2001 [NSIDC-0290]
This data set includes gas ratios in polar firn air: O2/N2, 15N/14N, 40Ar/N2, 40Ar/36Ar, 40Ar/38Ar, 84Kr/36Ar, 132Xe/36Ar, and 22Ne/36Ar. Investigators sampled air from the permeable snowpack (firn) ...
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50.
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 ...
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Showing 1 through 50 of 67
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