Accessing Ice Core Data at the NOAA Paleoclimatology

Accessing Ice Core Data at the NOAA Paleoclimatology Program P. Brown J. Wellington Carrie Morrill NOAA’s National Climatic Data Center and Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, CO Teaching Climate Change with Ice Core Data 2008 Workshop Penn State University, State College PA L. Thompson D. Hodell

Overview • About the NOAA Paleoclimatology Program • Ways to search the data archive • Brief summary of available ice core data • Other resources available at our website L. Thompson

About NOAA Paleoclimatology • NOAA’s National Climatic Data Center is the world's largest archive of climate and paleoclimate data. NCDC - Asheville Paleo Branch - Boulder • The Paleoclimatology Branch operates the World Data Center for Paleoclimatology, which is one of 52 World Data Centers that house a wide range of solar, geophysical, environmental, and human dimensions data, and the only World Data Center devoted to paleoclimatic data.

About NOAA Paleoclimatology • We follow standardized guidelines for data archive and distribution developed by the International Council for Scientific Unions (ICSU), supporting the ICSU goal to strengthen international science for the benefit of society, and making all data freely available without restriction. • We archive information so that it can be used by paleoclimate experts, scientists from other fields, resource managers and decision-makers, students, educators, and interested citizens -- in short, by anyone interested in gaining a better understanding of long-term variations in climate and environment.

National Climatic Data Center, Paleoclimatology Branch home page http: //www. ncdc. noaa. gov/paleo. html

Ice Core main page http: //www. ncdc. noaa. gov/paleo/icecore. html

Please cite data contributors http: //www. ncdc. noaa. gov/paleo/citation. html

Ice Core Gateway http: //www. ncdc. noaa. gov/paleo/icecore/current. html

Ice Core Gateway http: //www. ncdc. noaa. gov/paleo/icecore-varlist. html

Search with pull-down menus http: //hurricane. ncdc. noaa. gov/pls/paleo/fm_createpages. icecore

List of data sets http: //www. ncdc. noaa. gov/paleo/indexice. html Click to sort

List of data sets http: //www. ncdc. noaa. gov/paleo/indexice. html

Free-text search http: //www. ncdc. noaa. gov/oai/simp-search. jsp quel*

Free-text search http: //www. ncdc. noaa. gov/oai/simp-search. jsp

Free-text search http: //www. ncdc. noaa. gov/oai/simp-search. jsp

Search by author http: //hurricane. ncdc. noaa. gov/pls/paleo/contribseries. search

Map search *available soon*

Overview • About the NOAA Paleoclimatology Program • Ways to search the data archive • Brief summary of available ice core data • Other resources available at our website L. Thompson

Map of ice core locations *available soon*

Types of measurements as of June 1, 2008 Category Examples # of sites Physical properties accumulation, particle concentration, density, borehole temperature 29 Chemistry sulfate ion concentration, chlorine ion concentration 21 Oxygen isotopes d 18 O 33 Hydrogen isotopes deuterium, tritium 12 Atmospheric gases methane concentration, Ar/N, d 18 O in O 2 gas 39

Typical data file EPICA Dome C Ice Cores Deuterium Data ---------------------------------World Data Center for Paleoclimatology, Boulder ---------------------------------NOTE: PLEASE CITE CONTRIBUTORS WHEN USING THIS DATA!!!!! NAME OF DATA SET: EPICA Dome C Ice Cores Deuterium Data LAST UPDATE: 7/2004 (Original receipt by WDC Paleo) CONTRIBUTOR: Jean Jouzel, Institut Pierre Simon Laplace/ Laboratoire des Sciences du Climat et de l'Environnement, UMR CEA-CNRS 1572, CE Saclay, Orme des Merisiers, 91191 Gif-Sur-Yvette, France. IGBP PAGES/WDCA CONTRIBUTION SERIES NUMBER: 2004 -038 ORIGINAL REFERENCE: EPICA community members. 2004. Eight glacial cycles from an Antarctic ice core. Nature, Vol. 429, No 6992, pp. 623 -628, June 10, 2004. doi: 10. 1038/nature 02599. ABSTRACT: The Antarctic Vostok ice core provided compelling evidence of the nature of climate, and of climate feedbacks, over the past 420, 000 years. . GEOGRAPHIC REGION: Antarctica PERIOD OF RECORD: 0 - 741 kyr BP DATA: 1. Deuterium data from EPICA Dome C ice cores, 6. 6 -3140. 5 metres. Column 1: Depth (m) at top of averaging interval Column 2: Depth (m) at bottom of averaging interval Column 3: Age (years before 1950 on EDC 2 timescale) at top of averaging interval Column 4: Age (years before 1950 on EDC 2 timescale) at bottom of averaging interval Column 5: Mean age (EDC 2 timescale, mean of columns 3 and 4) Column 6: d. D, permill Depth/top Depth/bot. Age/Top Age/bot. Age/mean delta. D 6. 6 10. 45 38 102 70 -391. 2 10. 45 14. 3 102 175 138. 5 -396. 49 14. 3 18. 15 175 256 215. 5 -398. 19

Overview • About the NOAA Paleoclimatology Program • Ways to search the data archive • Brief summary of available ice core data • Other resources available at our website L. Thompson

Other resources http: //www. ncdc. noaa. gov/paleo. html

Paleo Primer http: //www. ncdc. noaa. gov/paleo/primer. html

Slide sets http: //www. ncdc. noaa. gov/paleo/slides. html

Climate Time Line http: //www. ngdc. noaa. gov/paleo/ctl/index. html

Paleo Perspectives http: //www. ncdc. noaa. gov/paleo/perspectives. html

Paleo Perspective on Global Warming http: //www. ncdc. noaa. gov/paleo/globalwarming/index. html Revised November 2006

Paleo Perspective on Global Warming http: //www. ncdc. noaa. gov/paleo/globalwarming/index. html Revised November 2006

Paleo Perspective on Abrupt Climate Change http: //www. ncdc. noaa. gov/paleo/abrupt/index. html Currently in revision

Paleo Perspective on Abrupt Climate Change http: //www. ncdc. noaa. gov/paleo/abrupt/index. html Currently in revision

Paleo Perspective on Abrupt Climate Change http: //www. ncdc. noaa. gov/paleo/abrupt/index. html

NCDC Climate Change resources http: //www. ncdc. noaa. gov/oa/climateextremes. html Includes links to the Climate Monitoring page with State of the Climate Reports, references on Climate Trends and Extreme Events, Indices of Climatic Change for the US, Global Warming FAQ, and links to various climate databases.

NOAA Climate Change resources http: //www. education. noaa. gov/

http: //serc. carleton. edu/usingdata/datasheets/Vostok_Ice. Core. html http: //serc. carleton. edu/introgeo/mathstatmodels/examples/Vostok. html

Vostok Antarctica 300 250 -50 -60 -70 0 20 200 y = 0. 0937 x - 81. 897 2 R = 0. 6568 -55 150 -60 40 60 80 100 120 100 160 140 -65 (thousands of years before present) Age -70 190 210 230 250 CO 2 (ppmv) 270 290 310 CO 2 (ppmv) Temperature CO 2 Temperature (°C) Temperature (degrees C) -40

Thanks! Questions or comments? carrie. morrill@noaa. gov