ArcticRIMS: Daily Thaw Depth and Frozen Ground Depth, Based on ERA-40 2-meter
Summary
Daily thaw depth and frozen ground depth are calculated using a frozen ground model. Oelke et al. [2004] provide details, while also referring to [Oelke et al., 2003]. Thaw depth and frozen ground are calculated using different initial model settings. In the first case, all soil down to the lower model boundary is set to sub-freezing initial temperatures. Thawing during the summer months caused the development of a thawed layer at the top with the thaw depth again decreasing during freeze-up of the thawed layer in fall. Frozen ground depth on the other hand is calculated with soil temperatures at all depths above-freezing at the beginning. Here the frozen depth increased during winter, and spring thawing eventually decreases its value.
The data is presented in 24 sub-datasets of different spatial and temporal aggregations.
Data access
- download: NSF Arctic Data Center
Additional information
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Spatial Type | grid |
Frequency | criteria |
Language | English |
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Temporal coverage
Begin datetime | 1970-01-01 00:00:00 |
End datetime | 2001-12-31 00:00:00 |
Spatial coverage
Map data from IBCSO, IBCAO, and Global Topography.
Maximum (North) Latitude:
90.00,
Minimum (South) Latitude:
45.00
Minimum (West) Longitude:
-180.00,
Maximum (East) Longitude:
180.00
Primary point of contact information
Richard B. Lammers <richard.lammers@unh.edu>
Additional contact information
- author: Charles J. Vorosmarty <cvorosmarty@ccny.cuny.edu>
- author: Richard B. Lammers <richard.lammers@unh.edu>
- author: Mark C. Serreze <serreze@nsidc.org>
- author: Andrew Etringer <etringer@nsdic.org>
- originator: Richard B. Lammers <richard.lammers@unh.edu>
Citation
Vorosmarty, C., et al. 2009. ArcticRIMS: Daily Thaw Depth and Frozen Ground Depth, Based on ERA-40 2-meter. Version 1.0. UCAR/NCAR - Earth Observing Laboratory. https://doi.org/10.5065/D6ST7MZ0. Accessed 04 Dec 2024.
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