Recent images

Earth Hummocks Prince Patrick Island

Ina Timling

Uploaded on Wed, 2009-12-02 22:36 by rdaanen in Patterned ground 2826 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 2179 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 1934 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 1656 visits

low centered irregular orthogonal ice wedge polygons Canada

Ronald Daanen

Uploaded on Wed, 2009-12-02 21:22 by rdaanen in Patterned ground 1614 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 1563 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 1548 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 1521 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 1481 visits

Sorted circles - Kvadehukken Svalbard

Kvadehukken, Svalbard Ina Timling

Uploaded on Thu, 2009-11-12 15:06 by rdaanen in Patterned ground 1405 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 1353 visits

2014-Tibet-011-jaks-on-solifluction.jpg

Uploaded on Wed, 2014-05-07 09:06 by rmuskett in Tibet Plateau 2014 1311 visits

Regular orthogonal Ice wedge polygons Belyy Ostrov Russia

Ronald Daanen

Uploaded on Wed, 2009-11-25 17:28 by rdaanen in Patterned ground 1309 visits

2014-Cranes beneath the Solifluction [Tibet-May-2014].jpg

Uploaded on Wed, 2014-05-07 09:06 by rmuskett in Tibet Plateau 2014 1305 visits

2014-Tibet-009-wild-donkey.jpg

Uploaded on Wed, 2014-05-07 09:06 by rmuskett in Tibet Plateau 2014 1304 visits

Weather station on top of mountain near Nuuk Basic

Uploaded on Wed, 2009-11-18 14:53 by rdaanen in Greenland 1299 visits

Eroding turf hummocks Prince Patrick Island

Ina Timling

Uploaded on Wed, 2009-12-02 22:37 by rdaanen in Patterned ground 1275 visits

permafrost core sampling result

Uploaded on Tue, 2009-12-01 15:03 by rdaanen in Greenland 1250 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 1241 visits

2014-Tibet-003-mobile-station-after-snowfall.jpg

Uploaded on Wed, 2014-05-07 09:06 by rmuskett in Tibet Plateau 2014 1221 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 1191 visits

2014-Tibet-004-Madou-town-2.jpg

Uploaded on Wed, 2014-05-07 09:06 by rmuskett in Tibet Plateau 2014 1186 visits

Drained lake on the edge of the Greenland ice sheet

Uploaded on Wed, 2009-11-18 14:53 by rdaanen in Greenland 1176 visits

Telida Village

Uploaded on Tue, 2017-04-18 14:30 by santosh in Telida_Project 1159 visits

Sorted circles Svalbard

Svalbard Ina Timling

Uploaded on Thu, 2009-11-12 15:06 by rdaanen in Patterned ground 1156 visits

2014-Tibet-002-Me.jpg

Uploaded on Wed, 2014-05-07 09:06 by rmuskett in Tibet Plateau 2014 1155 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 1146 visits

2014-Tibet-024.jpg

Uploaded on Wed, 2014-05-07 09:06 by rmuskett in Tibet Plateau 2014 1140 visits

Non-sorted circles Svalbard

Kvadehukken, Svalbard Ina Timling

Uploaded on Thu, 2009-11-12 15:06 by rdaanen in Patterned ground 1138 visits

Snow drift along the road on Atigun pass

Uploaded on Wed, 2009-12-02 14:11 by rdaanen in Brooks Range 1117 visits

B1.jpg

Uploaded on Mon, 2015-02-23 13:51 by rmuskett in InSAR Investigations in Permafrost Regions of Alaska 1111 visits

Uploaded on Tue, 2017-04-18 14:30 by santosh in Telida_Project 1103 visits

GIFair15_sz.jpg

Uploaded on Fri, 2015-08-14 08:47 by rmuskett in InSAR Investigations in Permafrost Regions of Alaska 1074 visits

Uploaded on Tue, 2017-04-18 14:30 by santosh in Telida_Project 1041 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 1031 visits

antonov2.JPG

Uploaded on Tue, 2010-02-09 15:48 by rmuskett in Svalbard 2010 and More 1027 visits

augArray Large

Uploaded on Fri, 2017-12-29 08:42 by rmuskett in USArray Augmentation 1026 visits

Partially collapsed pingo Canada

Ronald Daanen

Uploaded on Wed, 2009-12-02 21:22 by rdaanen in Patterned ground 1023 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 1021 visits

RUcraterMap.jpg

Uploaded on Mon, 2015-02-23 13:51 by rmuskett in InSAR Investigations in Permafrost Regions of Alaska 1017 visits

aerial view of Belyy Ostrov

Uploaded on Wed, 2009-11-25 15:24 by rdaanen in Yamal and Belyy Ostrov 1007 visits

Uploaded on Tue, 2017-04-18 14:30 by santosh in Telida_Project 1005 visits

Stonecircle at Kvadehukken Svalbard

Kvadehukken, Svalbard Ina Timling

Uploaded on Thu, 2009-11-12 15:05 by rdaanen in Patterned ground 1000 visits

Sorted circles Kvadehukken, Svalbard

Kvadehukken, Svalbard Ina Timling

Uploaded on Thu, 2009-11-12 15:06 by rdaanen in Patterned ground 999 visits

soil pattern

Uploaded on Wed, 2009-11-25 17:59 by rdaanen in Yamal and Belyy Ostrov 998 visits

Sorted net with vegetation in Northern Ural Mountains

Ronald Daanen

Uploaded on Wed, 2009-12-02 15:45 by rdaanen in Patterned ground 998 visits

Sorted circles Kvadehukken, Svalbard

Kvadehukken, Svalbard Ina Timling

Uploaded on Thu, 2009-11-12 15:06 by rdaanen in Patterned ground 993 visits

Small hexagonal cracking pattern Prince Patrick Island

Ronald Daanen

Uploaded on Wed, 2009-12-02 21:22 by rdaanen in Patterned ground 989 visits

sorted circles near site Svalbard

Kvadehukken, Svalbard

Uploaded on Thu, 2009-11-12 15:05 by rdaanen in Patterned ground 983 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 979 visits

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Pages

Earth Hummocks Prince Patrick Island

Irregular Ice wedge polygons and non-sorted circles on Howe Island, Alaska.

Irregular low centered ice wedge polygons North Slope, Alaska

Irregular low centered ice wedge polygons North Slope Alaska

low centered irregular orthogonal ice wedge polygons Canada

High centered orthogonal Ice wedge polygons in Northern Canadaian Archepelago

low centered irregular hexagonal ice wedge polygon Prince Patrick Island Canada

Small non-sorted polygons with emerging non-sorted circles Prince Patrick Island

Non-sorted poygons with emerging non-sorted circles Howe Island Alaska

Sorted circles - Kvadehukken Svalbard

Eroding irregular low centered ice wedge polygons North Slope, Alaska

2014-Tibet-011-jaks-on-solifluction.jpg

Regular orthogonal Ice wedge polygons Belyy Ostrov Russia

2014-Cranes beneath the Solifluction [Tibet-May-2014].jpg

2014-Tibet-009-wild-donkey.jpg

Weather station on top of mountain near Nuuk Basic

Eroding turf hummocks Prince Patrick Island

permafrost core sampling result

Piercy Pingo North Slope, Alaska, in March

2014-Tibet-003-mobile-station-after-snowfall.jpg

Screen shot 2015-02-26 at 6.48.02 PM.jpg

2014-Tibet-004-Madou-town-2.jpg

Drained lake on the edge of the Greenland ice sheet

Telida Village

Sorted circles Svalbard

2014-Tibet-002-Me.jpg

Irregular high centered ice wedge polygons Howe Island Alaska

2014-Tibet-024.jpg

Non-sorted circles Svalbard

Snow drift along the road on Atigun pass

B1.jpg

GIFair15_sz.jpg

InSAR_AK2.jpg

antonov2.JPG

augArray Large

Partially collapsed pingo Canada

Piercy Pingo North Slope, Alaska, in Sep

RUcraterMap.jpg

aerial view of Belyy Ostrov

Stonecircle at Kvadehukken Svalbard

Sorted circles Kvadehukken, Svalbard

soil pattern

Sorted net with vegetation in Northern Ural Mountains

Sorted circles Kvadehukken, Svalbard

Small hexagonal cracking pattern Prince Patrick Island

sorted circles near site Svalbard

Developing Pingo on the Tuktayuktuk Penisula, Canada

Pages