Ice core data sources

The data is mostly found on NOAA NCDC’s Paleo Data page

Depth/Age:

• GISP2 Meese/Sowers Timescale - official timescale for the GISP2 ice core 110K years BP - present (1988)

Temperature:

• GISP2 Ice Core Temperature and Accumulation Data - 49K years BP - present
• North GRIP - MIS3 CH4, d15N, and Temperature Data - 80K years BP - 30K years BP

CO2 (multiple sources needed for full temporal coverage):

• NOAA ESRL - Mauna Loa CO2 - 1958 to present
• Law Dome Ice Core - 0 to 2000 A.D.
• EPICA Dome C Ice Core High Resolution Holocene and Transition CO2 Data - 22K to 173 years BP
• Vostok Ice Core - 400K - 5K years BP

Sea level:

• Sea-level and Deep Water Temperature 430KYr Reconstructions Waelbroeck, C., et al. 2010. - 430K years BP to present

Population:

• World Population Prospects: The 2017 Revision, United Nations - 1950 - present
• Global historical population estimates 10k BC - 2 k AD (in millions) - 10K years BP - present
• Christian, David. Maps of Time: An Introduction to Big History, University of California Press: 2011. - historical counts 100K years BP - present

Datasets in stories:

• GISP2 Oxygen Isotope Data
• GISP2 Ice Core 110,000 Year Ions Data:
  • calcium column (Ca_ppb) used for dust
  • sodium column (Na_ppb) used for sea salt
• Blue Marble 3000 - video used for ice sheet story
  • Also on Science on a Sphere

Not used:

• GISP2 Volcanic markers