Ice Core Wiki

The U.S. Ice Drilling Program Ice Core Working Group (IDP-ICWG)

• The U.S. Ice Drilling Program a community planning workshop
• U.S. Ice Drilling Program Long Range Science Plan
• ICWG Documents

Why Drill Ice cores

• Ice core basics
• Roosevelt Island Ice Core Drilling
• Paleoclimatology: The Ice Core Record

Why share research data

• See [Elsevier]site
• Make scientific data FAIR [1]
• Open Data Report: The researcher perspective
• What is research data? While the definition often differs per field, generally, research data refers to the results of observations or experiments that validate your research findings. These span a range of useful materials associated with your research project, including:
  • Raw or processed data files
  • Software
  • Code
  • Models
  • Algorithms
  • Protocols
  • Methods

Open Source data portal platforms

• CKAN data portal platform
• [2] Apache Cassandra project
• [3] Zenodo

Standards for paleoclimate data

• See [[4]] PaCTS 1.0: A Crowdsourced Reporting Standard for Paleoclimate Data
• See also [[5]] PaCTS, PAGES and paleodata
• [[6]] LinkedEarth
• [[7]] LinkedEarth Wiki
• [[8]] Linked Paleo Data
• [[9]] Schema.org
• [[10]] Project 418
• [[11]] SEASAR
• [[12]] PaST (Paleoenvironmental Standard Terms) Thesaurus

Ice core data products

• temperature
• dust
• sea ice
• volcanism

Ice core sites and data

• IceReader
• List of ice cores From Wikipedia
• Wikiversity Page
• "condition":{"and":[{"or":[{"keyword":"AMD"},{"location_keyword":{"category":"CONTINENT","type":"ANTARTICA"}},{"location_keyword":{"category":"OCEAN","type":"SOUTHERN OCEAN"}},{"keyword":"PICCC0"},{"keyword":"PICCCBY"}},{"science_keywords":{"category":"EARTH SCIENCE","topic":"CLIMATE INDICATORS","term":"PALEOCLIMATE INDICATORS","variable_level_1":"ICE CORE RECORDS","ignore_case":false}}]}} AMD generated list]

Ice Core Data and drill sites

Drilling fluid

• Sheldon et al., (2014) Annals of Glacilogy: v 55(68): 260-270.
• ice drilling Library
• Estisol 140 Drilling Fluid

Ice core logging protocols

• Core Logging procedures Developed for WAIS Divide and SPICEcore by T.J. Fudge
• Brittle Ice Handling Procedure Developed for WAIS Divide and SPICEcore by T.J. Fudge

Borehole logging

SPICE core

• • • • Borehole logging
    • SDMA
      • [https://doi.org/10.1017/jog.2016.105 Chan et al., 2017\

NSF Ice Core Facilities

• NSF ICF
• Example of CPL (Core Processing Line) generated files
  • Core logs
  • Images
  • ECM
  • Visible stratigraphy

Ice core sample decontamination methods

• Ice chemistry
  • Mayewski et al., 1983

Ice core sampling methods

• Cutting
  • Inca bandsaw
• Discrete melting
  • Discrete melting (G-melter GISP2)
  • Röthlisberger et al., 2000
  • Osterberg et al., 2006
• Continuous flow analysis technique
  • Sigg et al., 1994

• • Continuous flow melting coupled with ICPMS
    • McConnell et al., 2002
    • Arienzo et al., 2019

• • Continuous flow melting coupled with IC
    • Huber et al., 2001
    • Cole-Dai et al., 2006
    • Bigler et al., 2011
    • Severi et al., 2015

• • Continuous flow melting coupled with stable water isotopes
    • Jones et al., 2017
    • Pyne et al., 2018

• • Continuous flow melting coupled with gasses
    • Rhodes et al., 2017
• Continuous flow analysis, Discrete sampling and single particle
  • Dallmayr et al., 2016
  • Kaufmann et al., 2008
  • Erhardt et al., 2019

• Signal dispersion
  • Breton et al., 2012

Glaciochemistry of polar ice cores

• Legrand and Mayewski, 1997
• Ice chemistry major ions
  • • Legrand et al., 1984
  • Stable water isotopes
    • Centre for Ice and Climate, Neils Bohr Institute
    • University of Washington
    • Kahle et al., 2018
    • Renland Ice Cap Holocene data through 8 ka are available with annual resolution.
  • Trace elements
    • Murozumi et al., 1969
    • Boutron et al., 1991
  • Density
  • LA ICP-MS on ice

• Biomarkers
  • Levoglucosan
    • Battistel et al., 2018
  • BC (Black Carbon)
    • Hawthorne et al., 2018
• Gasses
  • Early work
    • Gases in Icebergs by Scholander et al., 1956
    • Delmas et al., 1980
    • Forty years of ice-core records of CO2
    • See also The Irving–Scholander legacy in polar physiology by Elsner, 2000
  • Atmospheric composition reconstructions
    • Bereiter et al., 2018
  • Sea ice reconstructions
    • Thomas et al., 2019 Antarctic Sea Ice Proxies

Ice core data

Greenland Ice Core Chronology 2005 (GICC05)

• Holocene section 0-7.9 ka b2k Vinther et al.2006
• Early Holocene section Rasmussen et al.2006
• Early Holocene section supporting data set Rasmussen et al.2006

EGRIP (East GReenland Ice–core Project)

• Mojtabavi et al., 2019

WAISCORES

Siple Dome A deep ice core (SDMA)

• Time scale
  • Final annual layer counted Nov. 2003
  • References
    • Taylor et al., 2004
  • CRREL Annual Layer Data for Siple Dome Core A.
  • PSU Annual Layer Data for Siple Dome Core A (to 646.82m))
  • All of the Siple Dome data at the USAP-DC

WAIS Divide deep ice core (WDC-06A)

• Time scale
  • WD2014: Timescale for WAIS Divide Core 2006 A (WDC-06A)
    • Copy of WAIS Divide Deep Ice Core 0-68ka WD2014 Chronology submitted to NCDC by C.Buizert
    • Copy of WD2014 time scale submitted to PANGAEA server by M. Sigl
  • References
    • 31.2-68 ka B.P. Buizert et al., (2015)
    • 0.2.4 ka B.P. Sigl et al., (2015).
    • 2.4-31.2 ka B.P. Sigl et al., (2016)
• All of the WAIS Divide data at the USAP-DC
• The West Antarctic Ice Sheet (WAIS) Divide ice core project web site

The Roosevelt Island Ice Core (RICE)

• The Roosevelt Island Ice Core Chronology 2017 (RICE17)
  • Winstrup et al., 2019
  • Lee et al. 2019

SPICEcore SPC-14

• Time scale SP19
  • USAP-1443336_1 data set
  • References
    • Winski et al., 2019
  • Visual stratigraphy
    • Fegyveresi et al., 2019
• All SPICEcore Data

Methodology

• Zenodo
• PAGES, Rasmussen et al., 2014
• Winstrup et al., 2012

Software for developing Ice Core time scale

• Matlab David Meeker, UNH scripts (Not available)
• Kendrick Taylor, DRI (Fortran) code (Not available)
• Kenneth McGwire, DRI (Not available)
• Ice core dating software (ICD)
• New Ice core dating software (ICD)
• StratiCounter (Matlab)
• Climate Data Workbench (P301)
• IceChrono 1 (Python)
• Stratigraphic matching Matlab software. See Supplement

Pythons books

• pycse - Python3 Computations in Science and Engineering

Paleolimate Time Series and processing software

• pyCliTS
• CDT
• Stan platform
• LinkedEarth
• LinkedEarth software tools
• Pyleoclim

Sources of uncertainty in ice core data

• PDF By Eric Steig

Climate data, timeseries, flow modeling

Climate Models and Data

• Climate Reanalyzer

Sea ice (contributed by Trey Stafford, NSIDC)

• Gridded sea ice extent and concentration, 1850 onwards
• Arctic sea ice news and analysis
• Sea ice Tools & spreadsheets
• Sea ice index data landing page
• NSIDC's map services API documentation
• some additional sea ice datasets available from NSIDC

• "2018-01-02T00:00:00.000‌​Z") Example Web Map Service (WMS) request for the northern hemisphere

Ice flow models and tools

Firn Model

• The Community Firn Model

Elmer/Ice

• Open Source Finite Element Software

Ice flow Modeling and Data

• Scripts and utilities for assessing the potential for a million-year-old ice-core record from the Allan Hills Blue Ice Area by Laura Kehrl