Vostok - Isotope and Gas Data and Temperature ReconstructionNOAA Paleoclimatology ProgramNational Centers for Environmental Information (NCEI)(fully coded)
Dara O Shayda
dara@compclassnotes.com
dara@compclassnotes.com
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Abstract
This live code notebook acquires the Vostok Paleoclimatology data from the NOAA cloud systems and performs rudimentary plotting and Wavelet filtering and smoothing. The purpose of this code is to allow non-programmers or novice-programmers to gain hands-on experience coding with actual scientific data. The Paleoclimatology data are derived from natural sources such as tree rings, ice cores, corals, stalagmites, and ocean and lake sediments. These proxy climate data extend the weather and climate information archive by hundreds to millions of years. The data include geophysical or biological measurement time series and some reconstructed climate variables such as temperature and precipitation. Scientists use paleoclimatology data and information to understand natural climate variability and future climate change.
© 2012-Present CCN StudiosCreative Commons Attribution-NonCommercial-ShareAlike 4.0
Data Source
See [1] for general acquisition of Paleoclimatology data where ice based or not.
I have selected a few samples with the corresponding published papers as a starter.
I have selected a few samples with the corresponding published papers as a starter.
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url="https://www.ncei.noaa.gov/pub/data/paleo/icecore/antarctica/vostok/";Import[url]
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Index of /pub/data/paleo/icecore/antarctica/vostok/ Name Last modified Size DescriptionParent Directory -ch4.txt 1997-12-08 15:45 4620ch4nat-noaa.txt 2025-07-08 14:52 26318ch4nat.txt 2003-07-15 18:39 8639co2-noaa.txt 2025-07-08 14:53 7176co2.txt 1997-12-08 15:45 4532co2nat-noaa.txt 2025-07-08 14:52 24806co2nat.txt 2016-03-15 17:12 10946deutnat-noaa.txt 2025-06-25 17:51 104264deutnat.txt 2002-09-27 16:52 84230dustflux.txt 1997-12-08 15:45 13310dustnat-noaa.txt 2025-07-08 14:52 27587dustnat.txt 2003-07-15 18:37 10488dustvol.txt 1997-12-08 15:45 6066gt4nat-noaa.txt 2025-07-08 14:52 81597gt4nat.txt 2016-03-15 17:12 65241helium.doc 2001-11-02 18:47 61440helium.txt 2016-03-15 17:12 4793nanat-noaa.txt 2025-07-08 14:52 34561nanat.txt 2016-03-15 17:12 20577o18nat-noaa.txt 2025-07-08 14:52 24525o18nat.txt 2016-03-15 17:12 11031readme_helium.txt 2001-11-07 13:05 1569readme_petit1999.txt 2001-11-07 18:01 7344readme_vostok.txt 1998-07-24 17:59 7462readme_vostok_co2.txt 2000-01-10 19:08 3253readme_vostok_n2o.txt 2002-01-11 17:52 1804vostok-info.txt 2015-01-21 13:26 3500vostok2004flow-noaa.txt 2025-06-27 12:13 201603vostok2004flow.txt 2022-08-19 14:32 199949vostok2011ecm.txt 2012-06-08 11:08 4288316vostok2011ecm.xlsx 2012-06-08 11:08 4182421vostok2013d13ch4.txt 2024-04-26 09:34 20890vostok2014dd-noaa.txt 2024-08-22 15:27 11198vostok2014dd.txt 2017-08-16 18:35 10832vostok2014temp-noaa.txt 2024-08-22 15:27 9932vostok2014temp.txt 2017-08-16 18:35 9475vostok2017age.txt 2017-12-13 13:01 69520vostok2017ch4.txt 2017-12-13 13:01 933556vostok2017d15n.txt 2017-12-13 13:01 7243vostok_co2-noaa.txt 2024-05-01 16:44 18800vostok_co2.txt 2016-03-15 17:12 12976vostok_co2.xls 2000-01-07 18:55 36864vostok_deld.txt 2024-10-23 15:45 149534vostok_dust.txt 1997-10-23 18:12 135684vostok_methane_age.txt 2004-03-31 17:59 60087vostok_methane_age_tab.txt 2004-03-31 17:54 37308vostok_n2o_iso.txt 2021-02-11 19:16 3408vostok_n2o_iso.xls 2002-01-11 17:39 17408vostok_taylor_14c.txt 2003-09-15 19:14 7826vostok_time.txt 1997-10-23 18:12 115059
Climate and atmospheric history of the past 420,000 years from the Vostok Ice Core
Climate and atmospheric history of the past 420,000 years from the Vostok Ice Core
Contribution DateDate: 2001-11-01Last Modified DateDate: 2025-06-25Publication Authors: Petit, J.-R., J. Jouzel, D. Raynaud, N.I. Barkov, J.-M. Barnola, I. Basile, M. Bender, J. Chappellaz, M. Davis, G. Delaygue, M. Delmotte, V.M. Kotlyakov, M. Legrand, V. Lipenkov, C. Lorius, L. Pépin, C. Ritz, E. Saltzman, and M. StievenardPublished Date or Year: 1999-06-03Published Title: Climate and atmospheric history of the past 420,000 years from the Vostok Ice Core, Abstract: The recent completion of drilling at Vostok station in East Antarctica has allowed the extension of the ice record of atmospheric composition and climate to the past four glacial interglacial cycles. The succession of changes through each climate cycle and termination was similar, and atmospheric and climate properties oscillated between stable bounds. Interglacial periods differed in temporal evolution and duration. Atmospheric concentrations of carbon dioxide and methane correlate well with Antarctic air-temperature throughout the record. Present-day atmospheric burdens of these two important greenhouse gases seem to have been unprecedented during the past 420,000 years.gas_ageBP gas age, calendar year before presentCO2 carbon dioxide, parts per million
url="https://www.ncei.noaa.gov/pub/data/paleo/icecore/antarctica/vostok/co2nat-noaa.txt";datavos0=Import[url,"Table"];
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datavos0[[263]]
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{gas_ageBP,CO2}
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data=ToExpression@Drop[datavos0,263];data[[1]]
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{2342,284.7}
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ListLinePlot[data[[All,{1,2}]]]
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dwd=StationaryWaveletTransform[data[[All,2]],DaubechiesWavelet[2],3]
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DiscreteWaveletData
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dwd["TreeView"]
Vostok : Carbon Dioxide Data for Last 160,000 Years
Trend: {0, 0, 0}
InverseWaveletTransform[dwd,Automatic,{0,0,0}] reconstructs that portion of the data known as the Trend:
Composition: {0, 0, 0} + {0, 0, 1} + {0, 1}
We can add more components of the decomposition, simply add, to get a better approximation to the data:
Composition: {0, 0, 0} + {0, 0, 1}
We can add more components of the decomposition, simply add, to get a better approximation to the data:
Composition: {0, 0, 0} + {0, 0, 1}
We can add more components of the decomposition, simply add, to get a better approximation to the data:
References
[1] NCEI offers search and download of Paleoclimatic proxy data and Paleoclimate Reconstructions from the NOAA/World Data Service for Paleoclimatology archives. Over 10,000 data sets are available, derived from natural sources such as tree rings, ice cores, corals, and ocean and lake sediments. Use the General search box or Advanced search to improve filtering by investigators, locations, keywords and time periods.
https://www.ncei.noaa.gov/access/paleo-search/
https://www.ncei.noaa.gov/access/paleo-search/