Recent images
Pages
Earth Hummocks Prince Patrick Island
Ina Timling
Uploaded on Wed, 2009-12-02 22:36 by rdaanen in Patterned ground 1597 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 1287 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 1074 visits
low centered irregular orthogonal ice wedge polygons Canada
Ronald Daanen
Uploaded on Wed, 2009-12-02 21:22 by rdaanen in Patterned ground 921 visits
2014-Tibet-011-jaks-on-solifluction.jpg
Uploaded on Wed, 2014-05-07 09:06 by rmuskett in Tibet Plateau 2014 909 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 908 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 898 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 896 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 889 visits
2014-Tibet-009-wild-donkey.jpg
Uploaded on Wed, 2014-05-07 09:06 by rmuskett in Tibet Plateau 2014 857 visits
B1.jpg
Uploaded on Mon, 2015-02-23 13:51 by rmuskett in InSAR Investigations in Permafrost Regions of Alaska 834 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 833 visits
Regular orthogonal Ice wedge polygons Belyy Ostrov Russia
Ronald Daanen
Uploaded on Wed, 2009-11-25 17:28 by rdaanen in Patterned ground 822 visits
2014-Tibet-003-mobile-station-after-snowfall.jpg
Uploaded on Wed, 2014-05-07 09:06 by rmuskett in Tibet Plateau 2014 815 visits
2014-Tibet-002-Me.jpg
Uploaded on Wed, 2014-05-07 09:06 by rmuskett in Tibet Plateau 2014 812 visits
GIFair15_sz.jpg
Uploaded on Fri, 2015-08-14 08:47 by rmuskett in InSAR Investigations in Permafrost Regions of Alaska 789 visits
2014-Tibet-004-Madou-town-2.jpg
Uploaded on Wed, 2014-05-07 09:06 by rmuskett in Tibet Plateau 2014 774 visits
RUcraterMap.jpg
Uploaded on Mon, 2015-02-23 13:51 by rmuskett in InSAR Investigations in Permafrost Regions of Alaska 764 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 759 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 751 visits
Non-sorted circles Svalbard
Kvadehukken, Svalbard
Ina Timling
Uploaded on Thu, 2009-11-12 15:06 by rdaanen in Patterned ground 745 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 729 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 727 visits
sorted circles near site Svalbard
Kvadehukken, Svalbard
Uploaded on Thu, 2009-11-12 15:05 by rdaanen in Patterned ground 724 visits
Snow drift along the road on Atigun pass
Uploaded on Wed, 2009-12-02 14:11 by rdaanen in Brooks Range 718 visits
Non-sorted circle Franklin Bluffs, Alaska
Ronald Daanen
Uploaded on Wed, 2009-12-02 23:12 by rdaanen in Patterned ground 706 visits
Drained lake on the edge of the Greenland ice sheet
Uploaded on Wed, 2009-11-18 14:53 by rdaanen in Greenland 694 visits
Kanaiut bedrock Northern Brook Range
Uploaded on Wed, 2009-12-02 14:11 by rdaanen in Brooks Range 694 visits