Open Polar Server data are available!
Access to NSF COLDEX data on the Open Polar Server and flight-based CReSIS SAR processed data, collected by UTIG for NSF COLDEX are now available. Flight-based data in HDF5/matlab format and transect-based unfocused data in netCDF format are available for both field seasons 22/23 and 23/24. You can access the data here.
For COLDEX Members: Gain access to Globus!
Globus is a data management service designed to simplify the process of moving, sharing, and syncing large amounts of data across different systems and institutions. It can handle large datasets efficiently and ensures data integrity during the data transfer process. Instructions for COLDEX member Globus access are now available here.
NSF COLDEX Data and Samples
NSF COLDEX values the open, honest exchange of ideas, data, and technology, and is committed to sharing data with the ice core community and the public, while ensuring that creators and providers of data receive appropriate credit, as described in the COLDEX Data Management and Sample Allocation Policies.
COLDEX Oldest Ice Sample Requests
In collaboration with the NSF Ice Core Facility, NSF COLDEX is managing sample requests for ice cores collected through center activities, as well as cores previously collected at the Allan Hills Blue Ice area, some of which include ice older than 800,000 years (hereafter “NSF COLDEX samples”). NSF COLDEX samples are available to NSF COLDEX participants and others in the US scientific community. NSF COLDEX sample availability is cataloged in the NSF-ICF sample inventory. NSF COLDEX participants and qualified US investigators can directly request NSF COLDEX samples; international researchers may obtain samples through collaboration with NSF COLDEX participants. Interested researchers are encouraged to contact Edward Brook, Peter Neff, or Christo Buizert to discuss collaborations and sample availability.
Sample requests will be reviewed by the NSF COLDEX sample allocation committee (SAC). If requests are granted, the SAC will communicate with the ICF staff to arrange sample cutting and shipping in coordination with the investigators. The SAC can also advise on sample availability and ages.
COLDEX Participants can request samples using the sample request form. Email the completed “Sample Request/Facility Use Form” to Christo Buizert and Jenna Epifanio.
Non-COLDEX US investigators can request NSF COLDEX samples through a procedure similar to that for regular ice core samples managed by the NSF-ICF. Using the COLDEX sample request form they can either (i) request a small number of NSF COLDEX samples for a pilot study, or (ii) request a letter of sample availability for inclusion with an NSF proposal submission. Email the completed “Sample Request/Facility Use Form” to Christo Buizert and Jenna Epifanio. NSF-funded researchers have access to the same samples that NSF COLDEX participants do.
International researchers from outside of the US interested in working on NSF COLDEX samples should contact Director Edward Brook. They may be required to have a NSF COLDEX or NSF-funded collaborator before they are given access to NSF COLDEX samples. Priority will be given to researchers with analytical capabilities unavailable in the US and/or NSF COLDEX.
Published NSF COLDEX Datasets
Published data sets can be found on the USAP-Data center NSF COLDEX project page.
Replicate O-17-excess by continuous flow laser spectroscopy for an ice core section at Summit, Greenland. Davidge, L., Steig, E. J., & Schauer, A. J. (2022). Improving continuous-flow analysis of triple oxygen isotopes in ice cores: insights from replicate measurements. Atmospheric Measurement Techniques, 15(24), 7337–7351. (doi:10.5194/amt-15-7337-2022)
Context Map for Allan Hills Ice Coring Projects (QGIS). Fouché, Eads; Shaya, Marguerite; Fudge, T.J.; Holschuh, Nicholas, 2023, https://doi.org/10.7910/DVN/FX9JEC, Harvard Dataverse, V1. Also see the Readme file.
Open Polar Server and flight based CReSIS SAR processed data, Young, Duncan A.; Paden, John D.; Greenbaum, Jamin S.; Blankenship, Donald D; Kerr, Megan E.; Singh, Shivangini; Kaundinya, Shravan R.; Chan, Kristian; Buhl, Dillon P.; Ng, Gregory; Kempf, Scott D., 2024, "COLDEX Open Polar Radar MARFA Airborne Radar Data", https://doi.org/10.18738/T8/J38CO5, Texas Data Repository, V1
Internal NSF COLDEX Datasets
Data Sharing For COLDEX Members:
Our internal datasets used for multi-institution collaboration are shared on Globus, a data management system designed to simplify the sharing and transfer of large datasets. To gain access to the COLDEX internal shared data, fill out the google form, or send an email to the Data Manager (jenna.epifanio@oregonstate.edu), stating you have read and understand the data management policy.
Instructions for gaining access to Globus, and guidance for data sharing can be found HERE
Tabs are organized by types of data (Field Seasons, Geophysics, Ice Cores, Modeling, Surveys). Any preliminary data listed will only be accesible by members of COLDEX.
This list is also available on Globus HERE.
Ice Core Information
Ice cores have been drilled at the Allan Hills, in Antarctica during field seasons 22/23 and 23/24. NSF COLDEX additionally also handles requests for Allan Hills ice from earlier field seasons. Currently, 20 ice cores have been drilled at various depths, collecting ice up to 6 million years old. Explore our Ice Core Information page for more details.