Next Article in Journal
Sky-View Factor as a Relief Visualization Technique
Previous Article in Journal
Field Spectroscopy for Assisting Water Quality Monitoring and Assessment in Water Treatment Reservoirs Using Atmospheric Corrected Satellite Remotely Sensed Imagery
Remote Sens. 2011, 3(2), 378-397; doi:10.3390/rs3020378

Alaskan Permafrost Groundwater Storage Changes Derived from GRACE and Ground Measurements

*  and
Geophysical Institute, University of Alaska Fairbanks, P.O. Box 757230, 903 Koyukuk Drive, Fairbanks, AK 99775, USA
* Author to whom correspondence should be addressed.
Received: 1 December 2010 / Revised: 20 February 2011 / Accepted: 21 February 2011 / Published: 22 February 2011
View Full-Text   |   Download PDF [969 KB, uploaded 19 June 2014]   |   Browse Figures


The Arctic is in transition from climate-driven thawing of permafrost. We investigate satellite-derived water equivalent mass changes, snow water equivalent with in situ measurements of runoff and ground-survey derived geoid models from 1999 through 2009. The Alaskan Arctic coastal plain groundwater storage (including wetland bog, thaw pond and lake) is increasing by 1.15 ± 0.65 km3/a (area-average 1.10 ± 0.62 cm/a), and Yukon River watershed groundwater storage is decreasing by 7.44 ± 3.76 km3/a (area‑average 0.79 ± 0.40 cm/a). Geoid changes show increases within the Arctic coastal region and decreases within the Yukon River watershed. We hypothesize these changes are linked to the development of new predominately closed- and possibly open-talik in the continuous permafrost zone under large thaw lakes with increases of lakes and new predominately open-talik and reduction of permafrost extent in the discontinuous and sporadic zones with decreases of thaw lakes.
Keywords: permafrost; Talik; climate change; groundwater changes; Alaska; GRACE permafrost; Talik; climate change; groundwater changes; Alaska; GRACE
This is an open access article distributed under the Creative Commons Attribution License (CC BY) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Share & Cite This Article

Further Mendeley | CiteULike
Export to BibTeX |
EndNote |
MDPI and ACS Style

Muskett, R.R.; Romanovsky, V.E. Alaskan Permafrost Groundwater Storage Changes Derived from GRACE and Ground Measurements. Remote Sens. 2011, 3, 378-397.

View more citation formats

Related Articles

Article Metrics

For more information on the journal, click here


[Return to top]
Remote Sens. EISSN 2072-4292 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert