<?xml version="1.0" encoding="UTF-8"?><OAI-PMH xmlns="http://www.openarchives.org/OAI/2.0/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd"><responseDate>2026-07-22T03:04:35Z</responseDate><request identifier="GGD503.001" metadataPrefix="dif" verb="GetRecord">http://nsidc.org/api/dataset/metadata/oai</request><GetRecord><record><header><identifier>oai:nsidc.org/GGD503.001</identifier><datestamp>2026-01-05T15:17:04Z</datestamp><setSpec>v0_other</setSpec><setSpec>v0_all</setSpec><setSpec>fgdc</setSpec></header><metadata>
<DIF xmlns="http://gcmd.gsfc.nasa.gov/Aboutus/xml/dif/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://gcmd.gsfc.nasa.gov/Aboutus/xml/dif/ http://gcmd.gsfc.nasa.gov/Aboutus/xml/dif/dif_v9.7.1.xsd"><Entry_ID>GGD503.001</Entry_ID><Entry_Title>Canadian Geothermal Data Collection: Deep permafrost temperatures and thickness of permafrost</Entry_Title><Data_Set_Citation><Dataset_Creator>Taylor, A., Burgess, M. M., Allen, V. &amp; Wilkinson, A.</Dataset_Creator><Dataset_Title>Canadian Geothermal Data Collection: Deep permafrost temperatures and thickness of permafrost</Dataset_Title><Dataset_Release_Date>1998-01-01</Dataset_Release_Date><Dataset_Release_Place>Boulder, Colorado USA</Dataset_Release_Place><Dataset_Publisher>NSIDC: National Snow and Ice Data Center</Dataset_Publisher><Version>1</Version><Other_Citation_Details><Invert_Citation_Order>false</Invert_Citation_Order></Other_Citation_Details><Dataset_DOI>10.7265/931e-dg80</Dataset_DOI><Online_Resource>http://nsidc.org/data/docs/fgdc/ggd503_boreholes_ncanada/index.html</Online_Resource><Dataset_Series_Name>GGD503</Dataset_Series_Name></Data_Set_Citation><Personnel><Role>Investigator</Role><First_Name>Alan</First_Name><Last_Name>Judge</Last_Name><Phone>1-613-996-9323</Phone><Fax>1-613-992-2468</Fax><Contact_Address><Address>601 Booth St.</Address><City>Ottawa</City><Province_or_State>Ontario</Province_or_State><Postal_Code>K1A 0E8</Postal_Code><Country>Canada</Country></Contact_Address></Personnel><Personnel><Role>Investigator</Role><First_Name>Alan</First_Name><Last_Name>Taylor</Last_Name><Email>altaylor@kcorp.com</Email><Phone>1-250-656-0690</Phone><Fax>1-250-656-2162</Fax><Contact_Address><Address>9379 Maryland Drive</Address><City>Sidney</City><Province_or_State>BC</Province_or_State><Postal_Code>V8L 2R5</Postal_Code><Country>Canada</Country></Contact_Address></Personnel><Personnel><Role>Investigator</Role><First_Name>Margo</First_Name><Last_Name>Burgess</Last_Name><Email>mburgess@nrcan.gc.ca</Email><Phone>1-613-996 9317</Phone><Fax>1-613-992 0190</Fax><Contact_Address><Address>601 Booth Street</Address><City>Ottawa</City><Province_or_State>Ontario</Province_or_State><Postal_Code>K1A 0E8</Postal_Code><Country>Canada</Country></Contact_Address></Personnel><Personnel><Role>Investigator</Role><First_Name>Vic</First_Name><Last_Name>Allen</Last_Name><Contact_Address><Country>Canada</Country></Contact_Address></Personnel><Personnel><Role>Investigator</Role><First_Name>Anne</First_Name><Last_Name>Wilkinson</Last_Name><Contact_Address><Country>Canada</Country></Contact_Address></Personnel><Parameters><Category>EARTH SCIENCE</Category><Topic>CRYOSPHERE</Topic><Term>FROZEN GROUND</Term><Variable_Level_1>PERMAFROST</Variable_Level_1><Variable_Level_2> </Variable_Level_2><Variable_Level_3> </Variable_Level_3><Detailed_Variable> </Detailed_Variable></Parameters><Parameters><Category>EARTH SCIENCE</Category><Topic>LAND SURFACE</Topic><Term>SOILS</Term><Variable_Level_1> </Variable_Level_1><Variable_Level_2> </Variable_Level_2><Variable_Level_3> </Variable_Level_3><Detailed_Variable> </Detailed_Variable></Parameters><Parameters><Category>EARTH SCIENCE</Category><Topic>CRYOSPHERE</Topic><Term>FROZEN GROUND</Term><Variable_Level_1>SOIL TEMPERATURE</Variable_Level_1><Variable_Level_2> </Variable_Level_2><Variable_Level_3> </Variable_Level_3><Detailed_Variable> </Detailed_Variable></Parameters><Keyword>Boreholes</Keyword><Keyword>Engineering</Keyword><Keyword>Geothermal</Keyword><Keyword>Permafrost Properties</Keyword><Keyword>Permafrost Temperature</Keyword><Keyword>Soil Properties</Keyword><Keyword>Thermal Properties</Keyword><Temporal_Coverage><Start_Date>1965-01-01</Start_Date><Stop_Date>1997-12-31</Stop_Date></Temporal_Coverage><Spatial_Coverage><Southernmost_Latitude>60</Southernmost_Latitude><Northernmost_Latitude>85</Northernmost_Latitude><Westernmost_Longitude>-151</Westernmost_Longitude><Easternmost_Longitude>-60</Easternmost_Longitude></Spatial_Coverage><Location><Location_Category>Continent</Location_Category><Location_Type>North America</Location_Type><Location_Subregion1>Canada</Location_Subregion1><Location_Subregion2/><Location_Subregion3/><Detailed_Location>Canada, onshore and offshore, north of 60 degrees North</Detailed_Location></Location><Data_Set_Language>English</Data_Set_Language><Data_Center><Data_Center_Name><Short_Name>FGDC</Short_Name><Long_Name>Frozen Ground Data Center</Long_Name></Data_Center_Name><Data_Center_URL>http://nsidc.org/fgdc/</Data_Center_URL><Personnel><Role>Data Center Contact</Role><First_Name>FGDC</First_Name><Last_Name>User Services</Last_Name><Email>nsidc@nsidc.org</Email><Phone>1-303-492-6199</Phone><Fax>1-303-492-2468</Fax><Contact_Address><Address>National Snow and Ice Data Center</Address><Address>CIRES, 449 UCB</Address><Address>University of Colorado</Address><City>Boulder</City><Province_or_State>CO</Province_or_State><Postal_Code>80309-0449</Postal_Code><Country>USA</Country></Contact_Address></Personnel></Data_Center><Distribution><Distribution_Media>FTP</Distribution_Media><Distribution_Format>ASCII</Distribution_Format></Distribution><Reference>Judge, A., Duguid, A., Taylor, A., and Allen, V. (1989) The
automatic well temperature measuring system installed at Cape
Allison C-47, offshore well, Arctic Islands of Canada: 1.
Concept and deployment; Journal of Canadian Petroleum Technology
28, p. 89-94.

Taylor, A., Judge, A., and Allen, V. (1989) The automatic
well temperature measuring system installed at Cape Allison C-47, offshore well, Arctic Islands of Canada: 2. Data retrieval and
analysis of the thermal regime; Journal of Canadian Petroleum
Technology 28, p 95- 101.

Taylor, Alan, Judge, Alan and Allen, Vic. (1989) Recovery of
precise offshore permafrost temperatures from a deep geotechnical
hole, Canadian Beaufort Sea; Geological Survey of Canada, Paper
89-1D, p. 119-123.

Taylor, A.E., and Judge, A.S. (1987) Reconstruction of
marine transgression history from an offshore ground temperature
profile, Esso Angasak L-03 wellsite, Beaufort Sea; Geological
Survey of Canada, Paper 88-1D, p. 137-142.

Burgess, M.M., Judge, A.S., and Taylor, A.E. (1982) Yukon
ground temperature data collection - 1966 to August 1981; Earth
Physics Branch Open File 82-1; Energy, Mines and Resources
Canada, Ottawa, Ontario, 138 p.

Taylor, A.E., Burgess, M.M., Judge, A.S., and Allen, V.S
(1982) Canadian geothermal data collection - Northern Wells 1981;
Earth Physics Branch, Geothermal Series 13, 153 p.

Judge, A.S., Taylor, A.E., Burgess, M.M., and Allen, V.S.
(1981) Canadian Geothermal Data Collection - Northern Wells
1978-80; Earth Physics Branch, Geothermal Series 12, 190 p.

Taylor, A.E. (1980) A permafrost monitoring programme at
Alert, N.W.T. - The first year of data; Earth Physics Branch,
Open File 80-17, iv+31 p. 80-17, iv+31 p.

Brown, R.J.E., Judge, A.S., Pilon, J., Taylor, A.E., and
(1979) Gratton-Bellew, P. A permafrost monitoring programme at
Alert, N.W.T. - Project Description and Preliminary Results;
Earth Physics Branch, Open File 79-5, 48 p.

Judge, A.S., Taylor, A.E., and Burgess, M.M.(1979) Canadian
Geothermal Data Collection - Northern Wells 1977-78; Earth
Physics Branch, Geothermal Series 11, 187 p.

Judge,A.S., Taylor, A.E., and Rutledge, L.(1979) A
supplement to the Canadian Geothermal Data Collection - Northern
Wells 1977-78; Earth Physics Branch, Open File 79-13, 64 p.

Taylor, A.E. and Judge, A.S. (1977) Canadian Geothermal Data
Collection - Northern Wells 1976-77; Earth Physics Branch,
Geothermal Series 10, 194 p. Series 10, 194 p.

Taylor, A.E. and Judge, A.S. (1976) Canadian Geothermal Data Collection - Northern Wells 1975; Earth Physics Branch,
Geothermal Series 6, 142 p.

Taylor, A.E. and Judge, A.S. (1975) Canadian Geothermal Data
Collection - Northern Wells 1975; Earth Physics Branch,
Geothermal Series 3, 170 p.

Taylor, A.E., and Judge, A.S. (1974) Canadian Geothermal
Data Collection - Northern Wells, 1955 to February 1974; Earth
Physics Branch, Geothermal Series 1, 171 p.</Reference><Summary><Abstract>Precision temperature measurements have been made in some 150 deep wells and holes drilled in the course of natural resource exploration in the permafrost regions of Northern Canada. In most cases, holes were logged by lowering a probe containing a regions of Northern Canada. In most cases, holes were logged by lowering a probe containing a thermistor incrementally down the well, in other cases multi-thermistor cables were left in the holes and periodic measurements taken. In the 1990's, a few holes were logged by a automatic quasi- continuous logging system. Most holes were logged annually for 5-10 years after drilling completion, and measured temperatures show the disturbance due to drilling and the gradual recovery to near-undisturbed conditions. Some holes in the collection are of depth less than 125 m. Permafrost thicknesses are estimated at each well or hole from the depth of the 0 degree Celsius isotherm. This data collection provides the highest quality of permafrost temperature and permafrost thickness information available for Northern Canada. Other data are the large number of downhole temperature and permafrost thickness estimates taken during commercial well logging of petroleum exploration wells, and are by nature of lesser quality. These data are not included in this data set, but references to compilations of this data are provided. A short text (2000 words), tables of site locations and permafrost thicknesses with small-scale maps, and an extensive bibliography accompany the data collection. The file structure and contents of each file are well described. The text is sufficient to locate the data of interest, and the file description is adequate for a user to recover the parameters of interest. The data are presented on the CAPS Version 1.0 CD-ROM, June 1998.</Abstract></Summary><Related_URL><URL_Content_Type><Type>VIEW RELATED INFORMATION</Type></URL_Content_Type><URL>http://nsidc.org/data/docs/fgdc/ggd503_boreholes_ncanada/index.html</URL><Description>Documentation</Description></Related_URL><Related_URL><URL_Content_Type><Type>GET DATA</Type></URL_Content_Type><URL>ftp://sidads.colorado.edu/pub/DATASETS/fgdc/ggd503_boreholes_ncanada/</URL><Description>FTP</Description></Related_URL><Metadata_Name>CEOS IDN DIF</Metadata_Name><Metadata_Version>VERSION 9.9</Metadata_Version><DIF_Creation_Date>1998-01-01</DIF_Creation_Date><Last_DIF_Revision_Date>2026-01-05</Last_DIF_Revision_Date><Extended_Metadata><Metadata><Group>NSIDC</Group><Name>Version Summary</Name><Value/></Metadata><Metadata><Group>NSIDC</Group><Name>Minor Version</Name><Value/></Metadata><Metadata><Group>NSIDC</Group><Name>Current Version</Name><Value>1</Value></Metadata><Metadata><Group>NSIDC</Group><Name>Level of Service</Name><Value><Level>Basic</Level></Value></Metadata><Metadata><Group>NSIDC</Group><Name>Full Dataset Citation</Name><Value>Taylor, A., Burgess, M. 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