Global Change Master Directory gsfc-gcmduso@mail.nasa.gov 50 2013-05-21T12:56:51Z http://mddemo.gsfc.nasa.gov/KeywordSearch/OpenSearch.do 338 0 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-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?[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]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]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_96-029 -119.8,43.66,-119.8,43.66-118.0,45.0,-118.0,45.0 1705-01-01T00:00:00Z 1979-12-31T00:00:00Z 2012-08-31T04:00:00Z

These data are reconstructed drought index and precipitation for NOAA Oregon climate divisions 7 and 8, derived from tree-ring data by Gregg M. Garfin and Dr. Malcolm K. Hughes of the Laboratory of ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NOAA_NCDC_PALEO_96-002 -109.35,31.04,-102.7,37.3 2012-08-31T04:00:00Z

Water Year Annual Precipitation Reconstruction at El Malpais National Monument near Grants, New Mexico. The tree-ring chronology associated with this reconstruction can be found in the holdings ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NOAA_NGDC_PALEO_6CENTURY -180.0,-88.0,180.0,88.0 1400-01-01T00:00:00Z 1995-12-31T00:00:00Z 2012-08-31T04:00:00Z

This data set consists of reconstructed global annual surface temperatures for each year from 1400 to 1995, including statistical uncertainties and reconstructed principal component analyses. This ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NOAA_NCDC_PALEO_2000-075 -180.0,-90.0,180.0,90.0 1650-01-01T00:00:00Z 1980-12-31T00:00:00Z 2012-08-31T04:00:00Z

Data consists of cold-season Nino 3 region (an estimate of El Nino-related temperature variability) reconstructed data. See: http://www.ncdc.noaa.gov/paleo/ei/ei_reconsb.html

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NOAA_NGDC_PALEO_CLIMATEFORCING -180.0,-90.0,180.0,90.0 1500-01-01T00:00:00Z 1999-12-31T00:00:00Z 2012-08-31T04:00:00Z

[from NOAA/NCDC/WDC Paleoclimatology] A new compilation of annually resolved time series of atmospheric trace gas concentrations, solar irradiance, tropospheric aerosol optical ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]IAIDIS848 130.0,20.0,-90.0,62.0 1781-01-01T00:00:00Z 1993-12-31T00:00:00Z 1600-01-01T00:00:00Z 1983-12-31T00:00:00Z 2012-08-31T04:00:00Z

This metadata references the scientific article: "Tropical-North Pacific Climate Linkages Over the Past Four Centuries", which can be download from here. Authors: Rosanne DArrigo(1), Rob Wilson(2), ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NOAA_NCDC_PALEO_94-007 -90.0,20.0,-50.0,65.0 2012-08-31T04:00:00Z

These maps are based on 11,700 fossil pollen samples and 1744 modern pollen samples. Twenty-one pollen taxa were included in analyses: Alnus, Fraxinum, Populus, Tilia, Fagus, Betula, Ulmus, Abies, ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NOAA_NCDC_PALEO_2000-049 -120.0,37.0,-114.0,41.0 2012-08-31T04:00:00Z

This data set consists of reconstructed precipitation for Nevada Climate Division 3, annual July through June. Trees used for the reconstruction are bristlecone pine from Methuselah Walk, White ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NOAA_NCDC_PALEO_2005-057 -180.0,0.0,180.0,90.0 1400-01-01T00:00:00Z 1971-12-31T00:00:00Z 2012-08-31T04:00:00Z

Results are presented from a set of experiments designed to investigate factors that may influence proxy-based reconstructions of large-scale temperature patterns in past centuries. The factors ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NOAA_NCDC_PALEO_1999-014 -180.0,0.0,180.0,90.0 1000-01-01T00:00:00Z 1998-12-31T00:00:00Z 2012-08-31T04:00:00Z

Abstract (from the online documentation): Building on recent studies, we attempt hemispheric temperature reconstructions with proxy data networks for the past millennium. We focus not just on the ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NOAA_NGDC_PALEO_MANN2003 -180.0,0.0,180.0,90.0 1000-01-01T00:00:00Z T00:00:00Z 2012-08-31T04:00:00Z

This data is an optimal Northern Hemisphere mean surface temperature reconstruction from terrestrial borehole temperature profiles spanning the past five centuries. The pattern of borehole ground ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NOAA_NCDC_PALEO_96-020 75.0,30.0,125.0,45.0 1600-01-01T00:00:00Z 1988-12-31T00:00:00Z 2012-08-31T04:00:00Z

This data set consists of precipitation reconstructions for Huashan, Shaanxi Province, in the central People's Republic Of China, based on tree-ring data.

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NOAA_NCDC_PALEO_2001-081 -123.0,36.0,-120.0,40.0 0869-01-01T00:00:00Z 1977-12-31T00:00:00Z 2012-08-31T04:00:00Z

This data set consists of reconstruction of total annual flow, in millions of acre/feet, of the Sacramento River, based on tree ring chronologies from 869-1977 AD.

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NOAA_NCDC_PALEO_1998-038 135.0,-60.0,-75.0,15.0 1706-01-01T00:00:00Z 1997-12-31T00:00:00Z 2012-08-31T04:00:00Z

EXPERIMENTAL DENDROCLIMATIC RECONSTRUCTION OF THE SOUTHERN OSCILLATION This file documents reconstruction of the winter (DJF) season of Allan's version of the Southern Oscillation Index (SOI). It ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NOAA_NCDC_PALEO_2002-080 -115.11,31.04,-102.7,37.3 1000-01-01T00:00:00Z 1988-12-31T00:00:00Z 2012-08-31T04:00:00Z

This data set consists of a comparison of the linear regression and neural network models for precipitation reconstruction from a network of tree ring chronologies. Data include the reconstructed ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NOAA_NCDC_PALEO_2007-052 -114.0,35.0,-105.0,44.0 0765-01-01T00:00:00Z 2000-12-31T00:00:00Z 2012-08-31T04:00:00Z

New tree-ring records of ring-width from remnant preserved wood are analyzed to extend the record of reconstructed annual flows of the Colorado River at Lee Ferry into the Medieval Climate ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]K049_2007_2012_NZ_1 162.5833,-76.7166,162.5833,-76.7166 2004-11-15T00:00:00Z 2007-12-04T00:00:00Z 2012-06-19T04:00:00Z

A 4m snow pit from the Evans Piedmont glacier, Victoria Dry Valleys was sampled using ultra-clean methodology at 1cm resolution and was used to provide a comparison of trace element seasonal fluctuations ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]K049_1999_2012_NZ_10 159.2771,-80.9319,159.2771,-80.9319 2003-11-11T00:00:00Z T00:00:00Z 2012-06-19T04:00:00Z

To understand the drivers and consequences of climate change on timescales important to humans, the paleoclimate of ice cores, the glacial system and local climate patterns were analysed from Skinner ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]ASAC_757_LD_d18O 112.8,-66.8,112.9,-66.7 2010-04-08T00:00:00Z 2010-04-08T00:00:00Z 2012-06-04T04:00:00Z

LD2.1ky-grid4y - Law Dome d18O data 2100BP (Present=2000AD) to 1996 as 4-year averages. Data set used in: Jones, P.D. and M.E. Mann, Climate Over Past Millennia, Rev. Geo. 42(2), RG2002, doi:10.1029/2003RG000143, ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NSIDC-0407 -119.53333,-80.01667,-119.53333,-80.01667 2005-01-01T00:00:00Z 2008-12-31T00:00:00Z 2012-05-13T04:00:00Z

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) ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]Cassiope_Arctic_Climate_Proxy_Weijers_IPY59_NL 11.9,68.4,18.8,78.9 2008-01-15T00:00:00Z 2012-01-14T00:00:00Z 2012-01-03T05:00:00Z

Annual stem length, annual number of leaves, annual average leaf length, annual total leaf length and leaf lifespan. All of Cassiope tetragona. These parameters were measured at three sites: Ny-?lesund ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]ASAC_757_LD2000 112.8,-66.8,112.9,-66.7 1800-01-01T00:00:00Z 1999-12-31T00:00:00Z 2011-10-11T04:00:00Z

"LD2000" Isotope record: 1800AD-1999AD" This data set is that used in Schneider et al., 2006 and should be cited as such: Schneider, D. P., Steig, E. J., van Ommen, ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]reusch_1066348 2011-09-30T04:00:00Z

This award supports a three-year effort to use nonlinear techniques to improve understanding of Antarctic climate through studies of observational and forecast model data sets; improve and extend ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]USGS_CLUES -168.0,9.0,-52.0,80.0 2011-09-29T04:00:00Z

Vegetation changes caused by climatic variations and/or land use may have large impacts on forests, agriculture, rangelands, natural ecosystems, and endangered species. Climate modeling studies indicate ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]LSSU_PSU_Bubble_number_density 2011-06-23T04:00:00Z

The data set here consists of bubble-number densities in glacier ice, in units of bubbles per cubic centimeter, based on firn densification and grain-growth modeling under steady-state climate conditions. ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]LGM_TROPICAL -180.0,-90.0,180.0,90.0 2011-04-08T04:00:00Z

The LGM Tropical Terrestrial Data Synthesis (Farrera et al., 1999) contains quantitative reconstructions of mean temperature of the coldest month (MTCO) and mean annual ground temperature ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]6K_N_ATLANTIC_SST -180.0,-90.0,180.0,90.0 2011-04-07T04:00:00Z

The 6k data are based on two types of data: 1) alkenones, a geochemical proxy, and 2) transfer function estimates of sea-surface temperature based on faunal assemblages of planktic foraminifers. All ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]BU-054-005 160.48705,-77.909454,160.63568,-77.84513 2011-02-10T05:00:00Z

This project studies ancient ice buried in the Dry Valleys of Antarctica. The ice, which may approach ten million years in age, will be dated using argon and uranium radioisotope techniques. High-risk ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]ASAC_275 78.25,-68.55,78.25,-68.55 1987-09-30T00:00:00Z 1995-03-31T00:00:00Z 2010-07-20T04:00:00Z

Metadata record for data from ASAC Project 275 See the link below for public details on this project. From the abstracts of the referenced papers: The East Antarctica ice ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]severinghaus_0538657 2010-07-12T04:00:00Z

Major gas components of air data set, containing d15N, d18O of O2, dO2/N2, and dAr/N2 from the WAIS Divide ice core at high resolution. These data are used to constrain surface temperature, biosphere ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]miller_0126146 171.0,-83.75,171.0,-83.75 2003-11-18T00:00:00Z 2003-12-21T00:00:00Z 2010-07-09T04:00:00Z

The 4 km thick sequence of sedimentary rocks in the Beardmore Glacier area records 90 million years of Permian through Jurassic history of this high-paleolatitude sector of Gondwana. It accumulated ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]Permian_Triassic_Beardmore 155.0,-85.5,170.0,-82.5 2002-06-01T00:00:00Z 2006-05-31T00:00:00Z 2010-07-09T04:00:00Z

Data set consist of stratigraphic, sedimentologic, and paleontologic data from Permian and Triassic strata of the Pagoda, Buckley and Fremouw Formations in the Beardmore Glacier region ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]Ant_T_Recon 2010-07-09T04:00:00Z

This project will develop spatially extended and statistically reliable estimates of Antarctic surface temperature variations over the past several centuries, using a multi-proxy calibration/verification ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]ANT-0739700_BU-054-004 160.0,-78.5,164.5,-76.5 2010-07-02T04:00:00Z

This project studies the last vestiges of life in Antarctica from exceptionally well-preserved fossils of tundra life--mosses, diatoms, ostracods, Nothofagus leaves, wood, and insect remains recently ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]Warny-OPPGeol-0533879 -54.0,-65.0,-58.0,-62.0 2005-03-01T00:00:00Z 2007-02-28T00:00:00Z 2010-07-02T04:00:00Z

Feasibility study of Eocene to Pliocene palynological reconstruction of the Antarctic Peninsula margin climate evolution Project Summary Intellectual merit Numerous ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]ANT-0440711_BU-054-003 160.0,-78.5,164.5,-76.5 2010-07-02T04:00:00Z

The data set includes fossil images,trace-element geochemical analyses of volcanic tephra, geochronologic data for Dry Valleys ashfall deposits, locations and description of soil pits in the Antarctic ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]berger_0124049 163.4,-77.7,161.4,-77.5 2001-12-31T00:00:00Z 2009-01-01T00:00:00Z 2010-07-02T04:00:00Z

This Collaborative Research award supports a project headed by Dr. B. Hall to add to the understanding of what drives glacial cycles near the McMurdo Dry Valleys. Her project aimed to integrate the ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]LDEO_NADA -140.0,15.0,-30.0,65.0 0012-01-01T00:00:00Z T00:00:00Z 2010-07-02T04:00:00Z

The North American Drought Atlas, is an HTML web browser program that provides access to 286 annual drought reconstructions extending as far back as 1,992 years into the past. The reconstructions ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NSF-ANT08-37988 -180.0,-90.0,180.0,-65.0 2009-06-01T00:00:00Z 2013-05-31T00:00:00Z 2010-05-11T04:00:00Z

This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5). This award supports a project to reconstruct the past physical and chemical climate of Antarctica, ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[BAS_AEDC]GB-NERC-BAS-AEDC-00311 -56.75,-64.283,-56.75,-64.283 2001-01-01T00:00:00Z 2001-03-31T00:00:00Z 2010-04-27T04:00:00Z

During field work in 2001 over 1600 specimens were collected from four main fossil plant assemblages: the ''Nordenksjold flora'' from the Cross Valley Formation of Late Palaeocene age; and 3 floras ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[BAS_AEDC]GB-NERC-BAS-AEDC-00312 -56.75,-64.283,-56.75,-64.283 2000-08-14T00:00:00Z 2003-02-13T00:00:00Z 2010-04-27T04:00:00Z

Fossils from Palaeogene strata on Seymour Island, Antarctic Peninsula, were studied to determine the nature of vegetation response to the fundamental change from greenhouse to icehouse climates in ...