IEDA
Dataset Information
Law Dome DE08-OH site noble gases in ice: testing the 86Krexcess proxy
Data DOI:
https://doi.org/10.15784/601597
Cite as
Severinghaus, J. P. (2022) "Law Dome DE08-OH site noble gases in ice: testing the 86Krexcess proxy" U.S. Antarctic Program (USAP) Data Center. doi: https://doi.org/10.15784/601597.
Abstract
This data set consists of high-precision krypton and argon isotope measurements, along with 15N and 18O of O2. This data tests the hypothesis that the 2nd order parameter 86Krexcess (86Kr/82Kr - 40Ar/36Ar) serves as a proxy indicator of past storminess, via atmospheric pressure changes that cause barometric pumping in the firn and hence greater gravitational disequilibrium in the heavier Kr atom than in Ar. These measurements were made as part of the US-Australian Law Dome DE08-OH campaign in 2018-2019. Nitrogen and dioxygen isotopes were also measured.
Date Created:
2022-08-16
Repository:
USAP-DC (current)
Temporal Extent(s)
Start: 2018-12-01 - End: 2019-01-30
Award(s)
Version:
1
References
  1. Buizert, C. and J. P. Severinghaus (2016). Dispersion in deep polar firn driven by synoptic-scale surface pressure variability, The Cryosphere 10, 2099–2111. 
 (doi:10.5194/tc-10-2099-2016)
Supplemental Docs
View
Download
README_601597.txt
Data Files
Download
56.8 kB
LawDome_DE08-OH_86Kr_40Ar_15N_18O_2019.xls

MD5 Checksum: 6161a7c666bb8e4450e783ed6ec874fe File Type: Microsoft Excel

This dataset has been downloaded 0 times since March 2017 (based on unique date-IP combinations)