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Earth Hummocks Prince Patrick Island
Ina Timling
Uploaded on Wed, 2009-12-02 22:36 by rdaanen in Patterned ground 2521 visits
Irregular Ice wedge polygons and non-sorted circles on Howe Island, Alaska.
Howe Island, Alaska
Ronald Daanen
Uploaded on Thu, 2009-11-12 15:06 by rdaanen in Patterned ground 1985 visits
Irregular low centered ice wedge polygons North Slope, Alaska
Sagavanirktok river delta, Alaska.
Uploaded on Thu, 2009-11-12 15:06 by rdaanen in Patterned ground 1753 visits
Irregular low centered ice wedge polygons North Slope Alaska
Ina Timling
Uploaded on Wed, 2009-12-02 22:36 by rdaanen in Patterned ground 1486 visits
low centered irregular orthogonal ice wedge polygons Canada
Ronald Daanen
Uploaded on Wed, 2009-12-02 21:22 by rdaanen in Patterned ground 1420 visits
low centered irregular hexagonal ice wedge polygon Prince Patrick Island Canada
Ronald Daanen
Uploaded on Wed, 2009-12-02 21:22 by rdaanen in Patterned ground 1369 visits
Small non-sorted polygons with emerging non-sorted circles Prince Patrick Island
Ina Timling
Uploaded on Wed, 2009-12-02 22:38 by rdaanen in Patterned ground 1318 visits
High centered orthogonal Ice wedge polygons in Northern Canadaian Archepelago
Northern Canada
Ronald Daanen
Uploaded on Thu, 2009-11-12 15:06 by rdaanen in Patterned ground 1285 visits
Non-sorted poygons with emerging non-sorted circles Howe Island Alaska
Ina Timling
Uploaded on Wed, 2009-12-02 22:36 by rdaanen in Patterned ground 1252 visits
![2014-Cranes beneath the Solifluction [Tibet-May-2014].jpg](https://permafrost.gi.alaska.edu/sites/default/files/styles/medium/public/photos/image_8/2014-Cranes%20beneath%20the%20Solifluction%20%5BTibet-May-2014%5D.jpg?itok=pUkjuUW3 "2014-Cranes beneath the Solifluction [Tibet-May-2014].jpg")
2014-Cranes beneath the Solifluction [Tibet-May-2014].jpg
Uploaded on Wed, 2014-05-07 09:06 by rmuskett in Tibet Plateau 2014 1192 visits
Weather station on top of mountain near Nuuk Basic
Uploaded on Wed, 2009-11-18 14:53 by rdaanen in Greenland 1186 visits
2014-Tibet-011-jaks-on-solifluction.jpg
Uploaded on Wed, 2014-05-07 09:06 by rmuskett in Tibet Plateau 2014 1184 visits
Sorted circles - Kvadehukken Svalbard
Kvadehukken, Svalbard
Ina Timling
Uploaded on Thu, 2009-11-12 15:06 by rdaanen in Patterned ground 1181 visits
Eroding irregular low centered ice wedge polygons North Slope, Alaska
North Slope Alaska
Ronald Daanen
Uploaded on Thu, 2009-11-12 15:06 by rdaanen in Patterned ground 1166 visits
2014-Tibet-009-wild-donkey.jpg
Uploaded on Wed, 2014-05-07 09:06 by rmuskett in Tibet Plateau 2014 1165 visits
Regular orthogonal Ice wedge polygons Belyy Ostrov Russia
Ronald Daanen
Uploaded on Wed, 2009-11-25 17:28 by rdaanen in Patterned ground 1164 visits
Screen shot 2015-02-26 at 6.48.02 PM.jpg
Uploaded on Thu, 2015-02-26 19:24 by rmuskett in InSAR Investigations in Permafrost Regions of Alaska 1101 visits
2014-Tibet-003-mobile-station-after-snowfall.jpg
Uploaded on Wed, 2014-05-07 09:06 by rmuskett in Tibet Plateau 2014 1099 visits
Eroding turf hummocks Prince Patrick Island
Ina Timling
Uploaded on Wed, 2009-12-02 22:37 by rdaanen in Patterned ground 1088 visits
permafrost core sampling result
Uploaded on Tue, 2009-12-01 15:03 by rdaanen in Greenland 1065 visits
2014-Tibet-004-Madou-town-2.jpg
Uploaded on Wed, 2014-05-07 09:06 by rmuskett in Tibet Plateau 2014 1059 visits
Piercy Pingo North Slope, Alaska, in March
North Slope Alaska
Ronald Daanen
Uploaded on Thu, 2009-11-12 15:05 by rdaanen in Patterned ground 1050 visits
Drained lake on the edge of the Greenland ice sheet
Uploaded on Wed, 2009-11-18 14:53 by rdaanen in Greenland 1046 visits
2014-Tibet-002-Me.jpg
Uploaded on Wed, 2014-05-07 09:06 by rmuskett in Tibet Plateau 2014 1044 visits
Non-sorted circles Svalbard
Kvadehukken, Svalbard
Ina Timling
Uploaded on Thu, 2009-11-12 15:06 by rdaanen in Patterned ground 1030 visits
B1.jpg
Uploaded on Mon, 2015-02-23 13:51 by rmuskett in InSAR Investigations in Permafrost Regions of Alaska 1027 visits
Irregular high centered ice wedge polygons Howe Island Alaska
Ina Timling
Uploaded on Wed, 2009-12-02 22:36 by rdaanen in Patterned ground 1018 visits
Snow drift along the road on Atigun pass
Uploaded on Wed, 2009-12-02 14:11 by rdaanen in Brooks Range 1006 visits
GIFair15_sz.jpg
Uploaded on Fri, 2015-08-14 08:47 by rmuskett in InSAR Investigations in Permafrost Regions of Alaska 990 visits
Sorted circles Svalbard
Svalbard
Ina Timling
Uploaded on Thu, 2009-11-12 15:06 by rdaanen in Patterned ground 964 visits
InSAR_AK2.jpg
Examples in interferometric processing of L-band PALSAR datasets across the permafrost terrains of Alaska. For active-layer and permafrost change detection we need to be careful because 1) the changes are non-linear, non-stationary and episodic 2) pay careful attention to topography phase reduction 3) think of PV=nRT in regards to the contributions of the lower troposphere to altering the optical path of the insar pair 4) do the Error Budget (Better to know the error(s) than the error(s) to know you.) and 5) check the literature for Real Measurements to compare.
Uploaded on Sat, 2014-11-08 12:03 by rmuskett in InSAR Investigations in Permafrost Regions of Alaska 934 visits
sorted circles near site Svalbard
Kvadehukken, Svalbard
Uploaded on Thu, 2009-11-12 15:05 by rdaanen in Patterned ground 930 visits
Stonecircle at Kvadehukken Svalbard
Kvadehukken, Svalbard
Ina Timling
Uploaded on Thu, 2009-11-12 15:05 by rdaanen in Patterned ground 923 visits
RUcraterMap.jpg
Uploaded on Mon, 2015-02-23 13:51 by rmuskett in InSAR Investigations in Permafrost Regions of Alaska 923 visits
Piercy Pingo North Slope, Alaska, in Sep
North Slope Alaska
Ronald Daanen
Uploaded on Thu, 2009-11-12 15:05 by rdaanen in Patterned ground 919 visits
Partially collapsed pingo Canada
Ronald Daanen
Uploaded on Wed, 2009-12-02 21:22 by rdaanen in Patterned ground 906 visits
aerial view of Belyy Ostrov
Uploaded on Wed, 2009-11-25 15:24 by rdaanen in Yamal and Belyy Ostrov 904 visits
Sorted net with vegetation in Northern Ural Mountains
Ronald Daanen
Uploaded on Wed, 2009-12-02 15:45 by rdaanen in Patterned ground 895 visits
Small hexagonal cracking pattern Prince Patrick Island
Ronald Daanen
Uploaded on Wed, 2009-12-02 21:22 by rdaanen in Patterned ground 893 visits
Non-sorted circle Franklin Bluffs, Alaska
Ronald Daanen
Uploaded on Wed, 2009-12-02 23:12 by rdaanen in Patterned ground 891 visits
Kanaiut bedrock Northern Brook Range
Uploaded on Wed, 2009-12-02 14:11 by rdaanen in Brooks Range 883 visits
Sorted circles in Northern Ural Mountains
Ronald Daanen
Uploaded on Wed, 2009-12-02 15:45 by rdaanen in Patterned ground 877 visits
Sorted circles Kvadehukken, Svalbard
Kvadehukken, Svalbard
Ina Timling
Uploaded on Thu, 2009-11-12 15:06 by rdaanen in Patterned ground 875 visits
Developing Pingo on the Tuktayuktuk Penisula, Canada
Tuktoyaktuk penisula Canada
Ronald Daanen
Uploaded on Thu, 2009-11-12 15:05 by rdaanen in Patterned ground 868 visits
Sorted circles Kvadehukken, Svalbard
Kvadehukken, Svalbard
Ina Timling
Uploaded on Thu, 2009-11-12 15:06 by rdaanen in Patterned ground 863 visits
