A Half-Century of Change in Arctic Alaskan Shrubs: A Photographic-Based Assessment  View Catalog Page
Identification Information:
Dataset Identifier:
ARCSS130
Citation:
Citation Information:
Originator: M. Sturm and C. Racine
Publication Date: 20050606
Title: A Half-Century of Change in Arctic Alaskan Shrubs: A Photographic-Based Assessment
Publication Information:
Publication Place: Boulder, Colorado USA
Publisher: NSIDC: National Snow and Ice Data Center
Online Linkage: http://nsidc.org/data/arcss130.html
Description:
Abstract:
In this study, the locations of 193 old aerial photographs of northern Alaskan landscapes were rephotographed and assessed for changes in vegetation. The original photographs were taken over northern Alaska between 1948 and 1951, and the new photographs were taken between 1999 and 2003. The region covered by the original and repeat photographs stretches from the southern extent of the Brooks Range in the south to the Coastal Plain in the north, and from the Chukchi Sea in the west to the Canning River in the east. Approximate coordinates are 68°N to 70°N and 145°W to 165°W.
The original photographs were taken by the U.S. military as part of geologic reconnaissance and exploration, and the method used to acquire them was to fly both sides of a river valley while photographing the river and the facing valley slopes. Of the several thousand original photographs, only a fraction were repeated for the purpose of assessing vegetation change. Repeat photographs were selected for geographic coverage and to produce the greatest likelihood of detecting vegetation change. The original and repeat photographs were then scanned and stored in TIFF format. Individual image file sizes range from 5 to 60 MB each, and the total file size for the data set is 11 GB. The photographs are distributed on a set of three DVDs.
The images should not be published without the consent of the investigators.
Purpose: scientific research
Time Period of Content:
Time Period Information:
Range of Dates/Times:
Beginning Date: 19480101
Ending Date: 20031231
Currentness Reference: publication date
Status:
Progress: Complete
Maintenance and Update Frequency: Unknown
Spatial Domain:
Bounding Coordinates:
West Bounding Coordinate: -165°
East Bounding Coordinate: -145°
North Bounding Coordinate: 70°
South Bounding Coordinate: 68°
Keywords:
Theme:
Theme Keyword Thesaurus: NASA Global Change Master Directory (GCMD) Science Keywords
Theme Keyword: EARTH SCIENCE Biosphere Vegetation Vegetation Cover
Theme:
Theme Keyword Thesaurus: None
Theme Keyword:
Theme:
Theme Keyword Thesaurus: NASA Global Change Master Directory (GCMD) Instrument Keywords
Theme Keyword: CAMERAS
Theme:
Theme Keyword Thesaurus: NASA Global Change Master Directory (GCMD) Platform Keywords
Theme Keyword: AIRCRAFT
Theme Keyword: HELICOPTER
Theme:
Theme Keyword Thesaurus: ISO 19115 Topic Categories
Theme Keyword: climatologyMeteorologyAtmosphere
Theme Keyword: environment
Theme:
Theme Keyword Thesaurus: None
Theme Keyword: Alaska
Theme Keyword: Alaskan North Slope
Theme Keyword: Anaktuvuk River
Theme Keyword: ARCSS130
Theme Keyword: ARCSS Data Coordination Center
Theme Keyword: Atigun Gorge
Theme Keyword: Ayiyak River
Theme Keyword: Canning River
Theme Keyword: Chandler River
Theme Keyword: Colville River
Theme Keyword: Horseshoe/Castle
Theme Keyword: Ivishak River
Theme Keyword: Kokolik River
Theme Keyword: Kugururok River
Theme Keyword: Kuparuk River
Theme Keyword: Nanushuk River
Theme Keyword: Nimiuktuk River
Theme Keyword: Northern Alaska
Theme Keyword: NSIDC National Snow and Ice Data Center
Theme Keyword: Oolamnagavik River
Theme Keyword: OPP 0119374
Theme Keyword: Sag/Lupine confluence
Theme Keyword: Sagwon
Theme Keyword: SHEBA
Theme Keyword: The Notch
Theme Keyword: Upper Colville River
Theme Keyword: Upper Killik River
Theme Keyword: Upper Nigu River
Place:
Place Keyword Thesaurus: NASA Global Change Master Directory (GCMD) Location Keywords
Place Keyword: Continent North America United States Of America Alaska
Place Keyword: Geographic Region Arctic
Access Constraints:
None
Use Constraints:
The images should not be published without the consent of the investigators.
Point of Contact:
Contact Information:
Contact Person Primary:
Contact Person: NSIDC User Services
Contact Organization: National Snow and Ice Data Center
Contact Address:
Address Type: mailing
Address:
- CIRES, 449 UCB
- University of Colorado
City: Boulder
State or Province: CO
Postal Code: 80309-0449
Country: USA
Contact Voice Telephone: 1 303 492-6199 x
Contact Facsimile Telephone: 1 303 492-2468 x
Contact Electronic Mail Address: nsidc@nsidc.org
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Distribution Information:
Distributor:
Contact Information:
Contact Organization Primary:
Contact Organization: National Snow and Ice Data Center
Contact Person: NSIDC User Services
Contact Address:
Address Type: mailing
Address:
- National Snow and Ice Data Center
- CIRES, 449 UCB
- University of Colorado
City: Boulder
State or Province: CO
Postal Code: 80309-0449
Country: USA
Contact Voice Telephone: 1 303 492-6199
Contact Facsimile Telephone: 1 303 492-2468
Contact Electronic Mail Address: nsidc@nsidc.org
Resource Description:
ARCSS130
Distribution Liability:
NSIDC cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NSIDC makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty.
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Metadata Reference Information:
Metadata Date:
20120604
Metadata Review Date:
20120604
Metadata Contact:
Contact Information:
Contact Person Primary:
Contact Person: NSIDC User Services
Contact Organization: National Snow and Ice Data Center
Contact Address:
Address Type: mailing
Address:
- National Snow and Ice Data Center
- CIRES, 449 UCB
- University of Colorado
City: Boulder
State or Province: CO
Postal Code: 80309-0449
Country: USA
Contact Voice Telephone: 1 303 492-6199
Contact Facsimile Telephone: 1 303 492-2468
Contact Electronic Mail Address: nsidc@nsidc.org
Metadata Standard Name:
FGDC Content Standard for Digital Geospatial Metadata:
Extensions for Remote Sensing Metadata
Metadata Standard Version:
FGDC-STD-012-2002
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