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Borehole locations and permafrost depths, Alaska, USA

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Metadata Entity Set Information:

Language:

eng; usa

Character Set:

Value: UTF8
CodeList: MD_CharacterSetCode

Hierarchy Level:

Value: dataset
CodeList: MD_ScopeCode

Hierarchy Level Name:

Borehole locations and permafrost depths, Alaska, USA

Contact:

Responsible Party:

Individual Name: Gary D. Clow
Organization Name: US Geological Survey
Contact:

Contact Phone:

Contact Voice Telephone: 1 303 236-5509

Contact Address:

Delivery Point: Denver Federal Center, Box 25046, MS980
City: Denver
Administrative Area: CO
Postal Code: 80225
Country: USA
Email: clow@usgs.gov

Contact Online Resources:

Website: http://nsidc.org

Contact Role:

Value: principalInvestigator
CodeList: CI_RoleCode

Date Stamp:

2014-04-23

Metadata Standard Name:

ISO 19115 Geographic Information - Metadata First Edition

Metadata Standard Version:

ISO 19115:2003

Dataset URI:

http://nsidc.org/data/ggd223.html

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Data Identification Information:

Citation:

Citation Information:

Title: Borehole locations and permafrost depths, Alaska, USA
Date:
Date: 1998
Date Type:
Value: publication
CodeList: CI_DateTypeCode
Edition Date: 1998-01-01
Identifier: GGD223
Cited Responsible Party:

Responsible Party:

Individual Name: NSIDC User Services
Organization Name: National Snow and Ice Data Center
Contact:

Contact Phone:

Contact Voice Telephone: 1 303 492-6199

Contact Address:

Delivery Point: National Snow and Ice Data Center
City: Boulder
Administrative Area: CO
Postal Code: 80309-0449
Country: USA
Email: nsidc@nsidc.org

Contact Online Resources:

Website: http://nsidc.org

Contact Role:

Value: custodian
CodeList: CI_RoleCode

Responsible Party:

Individual Name: FGDC User Services
Organization Name: Frozen Ground Data Center
Contact:

Contact Phone:

Contact Voice Telephone: 1 303 492-6199 x

Contact Address:

Delivery Point: National Snow and Ice Data Center
City: Boulder
Administrative Area: CO
Postal Code: 80309-0449
Country: USA
Email: nsidc@nsidc.org

Contact Online Resources:

Website: http://nsidc.org/fgdc/

Contact Role:

Value: custodian
CodeList: CI_RoleCode

Abstract:

The methods utilized by the U.S. Geological Survey to measure subsurface temperatures have evolved considerably over the years. Although some of the early measurements were obtained using thermistor strings frozen into permafrost, the vast majority of the measurements were made in fluid-filled holes using a custom temperature sensor. A typical sensor used in Alaska prior to 1989 consisted of a series-parallel network of 20 thermistors; see Sass et al. [1971] for a more detailed description. During a logging experiment, the resistance of the thermistor network was determined using a Wheatstone bridge prior to 1967. After that time, a 4-wire resistance measurement was made using a commercial 5.5-digit multimeter (DMM). Before 1984, boreholes were logged in the 'incremental' or 'stop-and-go' modes; the vertical spacing of the measurements was typically 3-15 m. Beginning in 1984, the depth/resistance measurements were automatically stored on magnetic tape, allowing boreholes to be logged in the 'continuous' mode; the typical data spacing for the continuous temperature logs was 0.3 m (1 ft). Many of the Alaskan boreholes were re-logged several times to quantify the thermal disturbance caused by drilling the holes (see Lachenbruch and Brewer [1959]). A review of current temperature measuring techniques used by the USGS in the polar regions is given by Clow et al. [1996]. Data from 1950-1989 are included on the CAPS CD-ROM Version 1.0, June 1998.

Purpose:

Scientific Research

Credit:

The following example shows how to cite the use of this data set in a publication. For more information, see our Use and Copyright Web page.

Clow, G.D. 1998. Borehole locations and permafrost depths, Alaska, USA. [indicate subset used]. Boulder, Colorado USA: National Snow and Ice Data Center.

Status:

Value: complete
CodeList: MD_ProgressCode

Point of Contact:

Responsible Party:

Individual Name: Gary D. Clow
Organization Name: US Geological Survey
Contact:

Contact Phone:

Contact Voice Telephone: 1 303 236-5509

Contact Address:

Delivery Point: Denver Federal Center, Box 25046, MS980
City: Denver
Administrative Area: CO
Postal Code: 80225
Country: USA
Email: clow@usgs.gov

Contact Role:

Value: principalInvestigator
CodeList: CI_RoleCode

Responsible Party:

Individual Name: Max C. Brewer
Organization Name: US Geological Survey
Contact:

Contact Phone:

Contact Voice Telephone: 1 907 786-7429

Contact Address:

Delivery Point: 4200 University Drive
City: Anchorage
Administrative Area: AK
Postal Code: 99508
Country: USA

Contact Role:

Value: principalInvestigator
CodeList: CI_RoleCode

Responsible Party:

Individual Name: Arthur H. Lachenbruch
Organization Name: US Geological Survey
Contact:

Contact Phone:

Contact Voice Telephone: 1 650 329-4879

Contact Address:

Delivery Point: 345 Middlefield Road, MS 977
City: Menlo Park
Administrative Area: CA
Postal Code: 94025
Country: USA
Email: alachenbruch@usgs.gov

Contact Role:

Value: principalInvestigator
CodeList: CI_RoleCode

Maintenance Information:

Maintenance and Update Frequency:

Value: asNeeded
CodeList: MD_MaintenanceFrequencyCode

Update Scope:

Value: dataset
CodeList: MD_ScopeCode

Value: series
CodeList: MD_ScopeCode

Value: attribute
CodeList: MD_ScopeCode

Contact:

Responsible Party:

Individual Name: Gary D. Clow
Organization Name: US Geological Survey
Contact:

Contact Phone:

Contact Voice Telephone: 1 303 236-5509

Contact Address:

Delivery Point: Denver Federal Center, Box 25046, MS980
City: Denver
Administrative Area: CO
Postal Code: 80225
Country: USA
Email: clow@usgs.gov

Contact Online Resources:

Website: http://nsidc.org

Contact Role:

Value: principalInvestigator
CodeList: CI_RoleCode

Descriptive Keywords:

Keywords

Keyword: Continent > North America > United States Of America > Arctic Alaska, USA
Keyword Type:
Value: place
CodeList: MD_KeywordTypeCode
Keyword Thesaurus:

Citation Information:

Title: NASA / GCMD Location Keywords
Date:
Date: 2008-02-05
Date Type:
Value: revision
CodeList: CI_DateTypeCode

Keywords

Keyword: EARTH SCIENCE > Cryosphere > Frozen Ground > Permafrost
Keyword: EARTH SCIENCE > Cryosphere > Frozen Ground > Soil Temperature
Keyword: EARTH SCIENCE > Land Surface > Frozen Ground > Permafrost
Keyword: EARTH SCIENCE > Land Surface > Frozen Ground > Soil Temperature
Keyword Type:
Value: discipline
CodeList: MD_KeywordTypeCode
Keyword Thesaurus:

Citation Information:

Title: NASA / GCMD Science Keywords
Date:
Date: 2008-02-05
Date Type:
Value: revision
CodeList: CI_DateTypeCode

Keywords

Keyword Type:
Value: theme
CodeList: MD_KeywordTypeCode
Keyword Thesaurus:

Citation Information:

Title: None
Date:
Date: 2008-01-24
Date Type:
Value: revision
CodeList: CI_DateTypeCode

Keywords

Keyword: Boreholes
Keyword: Permafrost Properties
Keyword: Permafrost Temperature
Keyword: Thermal Properties
Keyword Type:
Value: theme
CodeList: MD_KeywordTypeCode

Dataset Constraints:

Legal Constraints:

Access Constraints:

Value: otherRestrictions
CodeList: MD_RestrictionCode

Use Constraints:

Value: otherRestrictions
CodeList: MD_RestrictionCode

Other Constraints:

Access Constraints : none

Use Constraints : none

Language:

eng; usa

Character Set:

Value: UTF8
CodeList: MD_CharacterSetCode

Extent Information:

Spatial Temporal Extent:

Geographic Element:

Bounding Coordinates:

 

Westbound Longitude: -165.767
Eastbound Longitude: -141.15
Southbound Latitude: 62.19
Northbound Latitude: 71.189

Temporal Element:

Time Period:

Begin Position: 19500101
End Position: 19891231

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Distribution Information:

Distributor Information:

Distributor Contact:

Responsible Party:

Individual Name: NSIDC User Services
Organization Name: National Snow and Ice Data Center
Contact:

Contact Phone:

Contact Voice Telephone: 1 303 492-6199

Contact Address:

Delivery Point: National Snow and Ice Data Center
City: Boulder
Administrative Area: CO
Postal Code: 80309-0449
Country: USA
Email: nsidc@nsidc.org

Contact Online Resources:

Website: http://nsidc.org

Contact Role:

Value: custodian
CodeList: CI_RoleCode

Responsible Party:

Individual Name: FGDC User Services
Organization Name: Frozen Ground Data Center
Contact:

Contact Phone:

Contact Voice Telephone: 1 303 492-6199 x

Contact Address:

Delivery Point: National Snow and Ice Data Center
City: Boulder
Administrative Area: CO
Postal Code: 80309-0449
Country: USA
Email: nsidc@nsidc.org

Contact Online Resources:

Website: http://nsidc.org/fgdc/

Contact Role:

Value: custodian
CodeList: CI_RoleCode

Distribution Format(s):

Data File Format:

Name: ASCII Text (.txt)
Specification: FTP

Digital Transfer Options:

Online Transfer Options:

Online Resources:

Linkage: ftp://sidads.colorado.edu/pub/DATASETS/fgdc/ggd223_boreholes_alaska/
Description: Data Access URL
Function:

Value: download
CodeList: CI_OnLineFunctionCode

Linkage: http://nsidc.org/data/docs/fgdc/ggd223_boreholes_alaska/index.html
Description: Documentation URL
Function:

Value: information
CodeList: CI_OnLineFunctionCode

Offline Transfer Options:

Offline Resources:

Name:

Value: onLine
CodeList: MD_MediumNameCode
Medium Name: FTP

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Metadata Views

ISO Text-Only

International Organization for Standardization (ISO) in plain text

ISO XML

International Organization for Standardization (ISO) in Extensible Markup Language (XML)

DIF HTML

NASA Global Change Master Directory (GCMD) Directory Interchange Format (DIF)

FGDC HTML

U.S. Federal Geographic Data Committee (FGDC) Content Standard for Digital Geospatial Metadata (CSDGM)