Global Change Master Directory gsfc-gcmduso@mail.nasa.gov 50 2013-05-19T06:58:12Z http://mddemo.gsfc.nasa.gov/KeywordSearch/OpenSearch.do 1411 0 http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]Steig_0963924 30.0,-90.0,30.0,-60.0 2013-05-10T04:00:00Z

Ice cores and surface snow samples were collected from in overland traverses in East Antarctica: one from the Norwegian Troll Station to the United States South Pole Station in 2007-2008; and a return ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]bay_0738658 112.08639,-79.4675,112.08639,-79.4675 2013-05-07T04:00:00Z

Preliminary data from an optical log made at WAIS Divide with the laser dust logger in December 2011, in the clear ice at depths between 1403.58 m and 3329.8 m. The Dust Logger measures the amount ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]CDA_AR_GEO_JASON_JURASSIC_TREES -61.53,-66.23,-61.42,-66.07 1988-01-01T00:00:00Z T00:00:00Z 2013-04-22T04:00:00Z

A new discovery of Jurassic flora (tree trunks and stemps), located in Ramirez nunatak, Jason Peninsula, on the East side of Antarctic Peninsula is described. Together with another fossil flora locality ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]GB-NERC-BAS-PDC-00526 2013-04-05T04:00:00Z

LTMS will build on and extend BAS's past collection of long-term time-series of key environmental variables. Examples include the ongoing collection of the temperature record which shows that the ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]GB-NERC-BAS-PDC-00510 2013-04-05T04:00:00Z

To determine how the climate of the Antarctic Peninsula during the Holocene (last 10,000 years) is related to global scale patterns and trends, in order to understand the significance of current environmental ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]GB-NERC-BAS-PDC-00524 2013-04-05T04:00:00Z

SEC will describe and quantify the key mechanisms by which variations in the solar wind and solar high-energy radiation affect the Earth's atmosphere, to determine whether or not these have a significant ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]GB-NERC-BAS-PDC-00500 2013-03-29T04:00:00Z

ACES will investigate the atmospheric and oceanic links that connect the climate of the Antarctic to that of lower latitudes, and their controlling mechanisms. Specific research topics will include ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]GB-NERC-BAS-PDC-00509 2013-03-29T04:00:00Z

Ice core records provide highly detailed records of how different components of the climate system have behaved in the past. DRAM will make use of these and other data to pin down the main forcings ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]GB-NERC-BAS-PDC-00518 2013-03-29T04:00:00Z

GEACEP will investigate the relationship between the evolution of Antarctic ice and the changing global environment over the last ~30 million years (My). We will do so through collecting and combining ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]GB-NERC-BAS-AEDC-00521 2013-03-29T04:00:00Z

Current predictions of sea level rise do not correctly quantify contributions from Antarctica. Some sectors of the Antarctic ice sheet are showing considerable rates of change; are these changes a ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]GB-NERC-BAS-AEDC-00525 2013-03-22T04:00:00Z

SEC will describe and quantify the key mechanisms by which variations in the solar wind and solar high-energy radiation affect the Earth's atmosphere, to determine whether or not these have a significant ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]LD2012-d18O-Native-age 112.81,-66.77,112.81,-66.77 0174-01-01T00:00:00Z 2007-12-31T00:00:00Z 2013-02-06T05:00:00Z

The LD2012-d18O-Native-age record is the annual mean water isotope (d18O) record for the "DSS" (Dome Summit South) Law Dome ice core with extensions (e.g. As described in van Ommen et al., Nature ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]ASAC_1164_AM03 70.332,-70.561,70.333,-70.56 2005-12-13T00:00:00Z T00:00:00Z 2013-02-05T05:00:00Z

Amery Ice Shelf AM03 borehole drilled mid-December 2005. Sub-shelf water profiling measurements conducted over a period of a few days. Partial video recording of borehole walls and sea floor benthos. ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]ASAC_1164_AM03_video 70.332,-70.561,70.333,-70.56 2005-12-13T00:00:00Z T00:00:00Z 2013-02-05T05:00:00Z

Amery Ice Shelf AM03 borehole drilled mid-December 2005. Sub-shelf water profiling measurements conducted over a period of a few days. Partial video recording of borehole walls and sea floor benthos. ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]ASAC_1164_AM04 70.29,-69.9,70.3,-69.89 2006-01-10T00:00:00Z T00:00:00Z 2013-02-05T05:00:00Z

Amery Ice Shelf AM04 borehole drilled mid-January 2006. Sub-shelf water profiling measurements conducted over a period of a few days. Partial video recording of borehole walls and sea floor benthos. ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]ASAC_1164_AM04_video 70.29,-69.9,70.3,-69.89 2006-01-10T00:00:00Z T00:00:00Z 2013-02-05T05:00:00Z

Amery Ice Shelf AM04 borehole drilled mid-January 2006. Sub-shelf water profiling measurements conducted over a period of a few days. Partial video recording of borehole walls and sea floor benthos. ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]ASAC_1164_AM05 69.6805,-70.2292,69.6805,-70.2292 2009-12-19T00:00:00Z T00:00:00Z 2013-02-05T05:00:00Z

Amery Ice Shelf AM05 borehole drilled mid-December 2009. Sub-shelf water profiling measurements conducted over a period of a few days. Partial video recording of borehole walls and sea floor benthos. ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]ASAC_1164_AM06 71.3679,-70.2428,71.3679,-70.2428 2010-01-07T00:00:00Z T00:00:00Z 2013-02-05T05:00:00Z

Amery Ice Shelf AM06 borehole drilled early January 2010. Sub-shelf water profiling measurements conducted over a period of a few days. Partial video recording of borehole walls and sea floor benthos. ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NSF-ANT10-39365 2009-08-28T00:00:00Z 2012-02-29T00:00:00Z 2013-02-01T05:00:00Z

This project studies the Permian-Triassic extinction event as recorded in sedimentary rocks from the Transantarctic Mountains of Antarctica. Two hundred and fifty million years ago most life on Earth ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NOAA_NCDC_PALEO_2001-014 -105.0,5.0,-75.0,23.0 0800-01-01T00:00:00Z 1000-12-31T00:00:00Z 2013-01-24T05:00:00Z

Oxygen isotope and sediment composition data from Lake Chichancanab, Mexico. The data are interpreted as a moisture balance proxy, and indicate drought conditions in the years 800-1000 AD, corresponding ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]US_ITASE-99-1 -122.63,-80.62,-122.63,-80.62 1713-01-01T00:00:00Z 2000-12-31T00:00:00Z 2013-01-24T05:00:00Z

Sub-annually resolved ice core chemistry data from various sites on the Antarctic Ice Sheet were obtained from 1999 to 2008 during the US International Trans-Antarctic Scientific Expedition (US ITASE) ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]steffen_0732946 2009-01-01T00:00:00Z 2011-10-01T00:00:00Z 2013-01-07T05:00:00Z

Our ground penetrating radar surveys focused on key structural features of the ice shelf, including basal crevasses, marine ice and rifts. Here we present our published work on basal crevasses. ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]Neutron-Monitor-era-annual-10Be 112.8,-66.7667,112.8,-66.7667 1936-01-01T00:00:00Z 2009-12-31T00:00:00Z 2012-12-21T05:00:00Z

Annually-resolved 10Be concentrations, stable water isotope ratios and accumualtion rate data from the DSS site on Law Dome, East Antarctica (spanning 1936-2009) and the Das2 site, south-east Greenland ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]UTC_majorgeologicunits -122.21224,30.833223,-72.71876,44.773125 1998-03-01T00:00:00Z 1999-06-01T00:00:00Z 2012-12-21T05:00:00Z

This data set contains boundaries and tags for major geologic units in the conterminous United States. In addition to the polygons representing the areal extent of geologic units, it identifies boundaries ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]highres_10be_records_law_dome_1999_2009 112.8,-66.77,112.8,-66.77 1999-01-01T00:00:00Z 2009-12-31T00:00:00Z 2012-12-21T05:00:00Z

This file comprises five high-resolution records of 10Be concentration in snow from Law Dome, East Antarctica: DSS0102-pit, DSS0506-pit, DSS0506-core, DSS0809-core and DSS0910-core. A single composite ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]10Be-Law-Dome-10-year-composite 112.8,-66.77,112.8,-66.77 1999-12-01T00:00:00Z 2009-12-31T00:00:00Z 2012-12-21T05:00:00Z

This record comprises composite 10Be concentrations from three Law Dome ice cores (DSS0506-core, DSS0809-core and DSS0910-core). Sample dating is revised from that presented in Pedro et al., clim. ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]UTC_caves -85.87167,34.88217,-85.0175,35.52333 1961-01-01T00:00:00Z 1961-01-01T00:00:00Z 2012-12-12T05:00:00Z

This shapefile was created using Bulletin 64 (Caves of Tennessee) produced by the Tennessee Dept. of Conservation and Commerce Division of Geology. The Bulletin ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NRMSC_sulfurnitrogenstableisotopes -118.0,42.0,-105.0,49.0 1994-01-01T00:00:00Z 2001-12-31T00:00:00Z 2012-12-12T05:00:00Z

Whitebark pine (Pinus albicaulis) is a masting species that produces relatively large, fat- and protein-rich nuts that are consumed by grizzly bears (Ursus arctos horribilis). Trees produce abundant ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]AIS_1968_borehole 65.0,-74.0,74.0,-68.0 1968-08-30T00:00:00Z 1969-01-31T00:00:00Z 2012-12-10T05:00:00Z

In 1968 the Australian Antarctic Division had a group of four men spend over a year on the Amery Ice Shelf. As part of their program of work, they drilled a number of boreholes on the shelf and took ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]KPDC_MSCS_WESTERN_ARCTIC_2012 171.57738,72.59635,-149.68903,82.32055 2012-08-04T00:00:00Z 2012-09-07T00:00:00Z 2012-11-16T05:00:00Z

Marine geology program is conducted during the 3rd ARAON Arctic Expedition in 2012. To retrieve the sediment cores at selected geological and oceanographic stations we used different coring gears ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]cuffey_0537661 -112.08,-79.47,-112.08,-79.47 2012-11-13T05:00:00Z

This award supports analyses of stable isotopes of water, dD, d18O and deuterium excess in the proposed West Antarctic Ice Sheet Divide (WAIS) deep ice core. The project will analyze a continuous ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]mbs_wilhelm_msa_hooh 86.082,-69.13,86.084,-69.12 1984-01-01T00:00:00Z 1998-12-31T00:00:00Z 2012-11-07T05:00:00Z

This work presents results from a short firn core spanning 15 years collected from near Mount Brown, Wilhelm II Land, East Antarctica. Variations of methanesulphonic acid (MSA) at Mount Brown were ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]law_dome_700yr_ion_chem 112.8,-66.77,112.8,-66.77 1988-01-01T00:00:00Z 2000-03-06T00:00:00Z 2012-11-07T05:00:00Z

A compilation of 700 years of Law Dome major ion chemistry data, recorded from 3 ice cores; DSS97, DSS99, DSS main. This work was completed as part of ASAC project 757 (ASAC_757). Species which ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]KPDC_NVLR_2011_JW_01 158.1,-75.833,159.3,-75.733 2012-01-03T00:00:00Z 2012-01-13T00:00:00Z 2012-11-06T05:00:00Z

This entry is for the rock samples of Prince Albert Mountains, Antarctica collected in 2011-12 austral summer season. The collection includes volcanic rocks (basalt, dolerite, hyaloclasite, and tuff) ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]IPCC -180.0,-90.0,180.0,90.0 0001-01-01T00:00:00Z T00:00:00Z 2012-11-02T04:00:00Z

The Intergovernmental Panel on Climate Change (IPCC) was organized in 1988 by the World Meteorological Organization (WMO) and the United Nations Environment Program (UNEP). Four series of reports ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]hatcher_0739684 2012-10-25T04:00:00Z

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 ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]AAS_3203 158.8,-54.68,158.9,-54.56 2009-09-30T00:00:00Z 2012-03-31T00:00:00Z 2012-10-22T04:00:00Z

Metadata record for data from AAS (ASAC) Project 3203 See the link below for public details on this project. Public Summary High-order predators rely on the productivity of the Southern Ocean marine ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NOAA_NCDC_PALEO2003-041 57.6,18.05,57.6,18.05 2012-10-18T04:00:00Z

Time series of G. bulloides percent in the Arabian Sea during the past 10,000 years, influenced by upwelling driven by the SW summer monsoon winds. Abstract (from the online documentation): During ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NOAA_NCDC_PALEO-2004-006 -10.18,42.73,-10.18,42.73 2012-10-18T04:00:00Z

Cariaco Basin 50KYr Radiocarbon Calibration and Reconstruction. Accelerator Mass Spectrometry (AMS) 14C data from planktonic foraminifera from Ocean Drilling Program Site 1002, cores 1002D ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NOAA_NCDC_PALEO_2002-049 45.0,-60.0,105.0,25.0 1000-01-01T00:00:00Z T00:00:00Z 2012-10-18T04:00:00Z

This data set consists of faunal abundance data from Arabian Sea Box Cores. [ABSTRACT] Climate reconstructions reveal unprecedented warming in the last century, however little is known about trends ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]Inforain_USGS_GBE -170.0,52.0,-140.0,71.0 2012-10-15T04:00:00Z

The United States Geological Survey (USGS) and Interrain Pacific are please to help make available to the public this integrated Geographic Information System for the Glacier Bay / northern Southeast ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]summer_sea_salt_1000-2009 112.8,-66.77,112.8,-66.77 1987-01-01T00:00:00Z 2010-12-31T00:00:00Z 2012-10-10T04:00:00Z

This data set is the logged, annualised summer sea salt (December to March, DJFM) concentrations from the Law Dome ice core chemistry record, spanning 1000-2009 AD (dates apply to the year of JFM, ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]baker_0738975 2009-09-01T00:00:00Z 2011-03-01T00:00:00Z 2009-01-01T00:00:00Z 2009-06-01T00:00:00Z 2006-06-01T00:00:00Z 2009-01-01T00:00:00Z 2010-02-01T00:00:00Z 2010-03-01T00:00:00Z 2008-01-01T00:00:00Z 2009-06-01T00:00:00Z 2009-07-01T00:00:00Z 2011-12-31T00:00:00Z 2012-09-21T04:00:00Z

This award supports a project to use advanced microscopic and spectroscopic techniques to explore critical questions about microstructure in ice cores, in particular the microstructural locations ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]ASAC_757 112.75,-66.75,112.85,-66.65 1994-01-01T00:00:00Z T00:00:00Z 2012-09-20T04:00:00Z

Prediction of future climate change requires knowledge of past changes. Polar snow forms an archive of environmental conditions that is accessible by drilling and analysing ice cores. This project ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]pettit_0940650 -165.0,-85.0,-105.0,-75.0 2012-09-12T04:00:00Z

This award supports a project to constrain the accumulation rate, thickness, and temperature history for Siple Dome using a vertical velocity profile that includes the effects of an evolving fabric ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]waddington_0636997 2012-09-06T04:00:00Z

We provide a the synthetic, sparse depth-age data generated using a 1-d ice-flow model. The age data include red noise to simulate real depth-age data. The inferred depth-age data profile are included. ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NOAA_NCDC_PALEO_ARCTIC -180.0,50.0,180.0,90.0 1600-01-01T00:00:00Z 2000-12-31T00:00:00Z 2012-08-31T04:00:00Z

Abstract (from the online documentation): A compilation of paleoclimate records from lake sediments, trees, glaciers, and marine sediments provides a view of circum-Arctic environmental variability ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NOAA_NCDC_PALEO_2003-075 -90.0,60.0,-60.0,75.0 0752-01-01T00:00:00Z 1992-12-31T00:00:00Z 2012-08-31T04:00:00Z

Data consists of summer temperature reconstruction based on laminae thickness in sediments from Donard Lake, Baffin Island, Canada. ABSTRACT (from the online documentation): Clastic varved sediments ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NOAA_NCDC_PALEO_2000-069 -65.17,10.7,-65.17,10.7 2012-08-31T04:00:00Z

This data set contains Cariaco Basin 2000 Deglacial 14C and Grey Scale Data. Cariaco2000_pc56_greyscale.txt is updated from earlier published data, with a new age model. ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NOAA_NCDC_PALEO_2000-005 -64.49,10.76,-64.49,10.76 1165-01-01T00:00:00Z 1990-12-31T00:00:00Z 2012-08-31T04:00:00Z

Cariaco Basin G. bulloides Abundance Data Latitude: 10?45.46' N Longitude: 64?41.68' W Bathymetry: 395 m Variable names: Depth in core, Age, G. bulloides abundance ...