A Half-Century of Change in Arctic Alaskan Shrubs: A Photographic-Based Assessment  View Catalog Page Entry ID
ARCSS130
Summary
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The images should not be published without the consent of the investigators.
Geographic Coverage
Spatial Coordinates:
N: 70°
S: 68°
E: -145°
W: -165°
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Data Set Citation
Dataset Creator: M. Sturm and C. Racine
Dataset Title: A Half-Century of Change in Arctic Alaskan Shrubs: A Photographic-Based Assessment
Dataset Release Date: 2005-06-06
Dataset Release Place: Boulder, Colorado USA
Dataset Publisher: NSIDC: National Snow and Ice Data Center
Online Resource: http://nsidc.org/data/arcss130.html
Temporal Coverage
Start Date: 1948-01-01
Stop Date: 1951-12-31
Start Date: 1999-01-01
Stop Date: 2003-12-31
Location Keywords
- CONTINENT NORTH AMERICA UNITED STATES OF AMERICA ALASKA
- GEOGRAPHIC REGION ARCTIC
Science Keywords
- Biosphere Vegetation Vegetation Cover
Ancillary Keywords
- Alaska
- Alaskan North Slope
- Anaktuvuk River
- ARCSS130
- ARCSS Data Coordination Center
- Atigun Gorge
- Ayiyak River
- Canning River
- Chandler River
- Colville River
- Horseshoe/Castle
- Ivishak River
- Kokolik River
- Kugururok River
- Kuparuk River
- Nanushuk River
- Nimiuktuk River
- Northern Alaska
- NSIDC > National Snow and Ice Data Center
- Oolamnagavik River
- OPP 0119374
- Sag/Lupine confluence
- Sagwon
- SHEBA
- The Notch
- Upper Colville River
- Upper Killik River
- Upper Nigu River
- Climatology/Meteorology/Atmosphere
- Environment
Platform
Instrument
Use Constraints
The images should not be published without the consent of the investigators.
Data Set Progress
complete
Originating Center
NSIDC_ARCSS
Data Center
National Snow and Ice Data Center
Data Center URL: http://nsidc.org
Data Center Personnel
Name: NSIDC User Services
Phone: 1 303 492-6199
Fax: 1 303 492-2468
Email: nsidc@nsidc.org
Contact Address:
- National Snow and Ice Data Center
- CIRES, 449 UCB
- University of Colorado
City: Boulder
Province or State: CO
Postal Code: 80309-0449
Country: USA
NSIDC Arctic System Science Data Coordination Center
Data Center URL: http://nsidc.org/arcss/
Data Center Personnel
Name: NSIDC ARCSS User Services
Phone: 1 303 492-6199
Fax: 1 303 492-2468
Email: nsidc@nsidc.org
Contact Address:
- National Snow and Ice Data Center
- CIRES, 449 UCB
- University of Colorado
City: Boulder
Province or State: CO
Postal Code: 80309-0449
Country: USA
Distribution
Distribution Media: DVD
Distribution Size: 11 GB
Distribution Format: TIFF
Personnel
NSIDC User Services
Role: TECHNICAL CONTACT
Phone: 1 303 492-6199 x
Fax: 1 303 492-2468 x
Email: nsidc@nsidc.org
Contact Address:
- National Snow and Ice Data Center
- CIRES, 449 UCB
- University of Colorado
City: Boulder
Province or State: CO
Postal Code: 80309-0449
Country: USA
Matthew Sturm
Role: INVESTIGATOR
Phone: 1 907 353-5183
Fax: 1 907 353-5142
Email: msturm@crrel.usace.army.mil
Contact Address:
- USA-CRREL-Alaska
- P.O. Box 35170
City: Ft. Wainwright
Province or State: AK
Postal Code: 99703-0170
Charles H. Racine
Role: INVESTIGATOR
Phone: 1 603 646-4519
Fax: 1 603 646-4785
Email: cracine@crrel41.crrel.usace.army.mil
Contact Address:
- US Army CRREL
- 72 Lyme Road
City: Hanover
Province or State: NH
Postal Code: 03755-1290
Country: USA
Reference
Sturm, M., C. Racine, and K. Tape. 2001. Increasing shrub abundance in the Arctic. Nature 411: 546-547.
Metadata Name and Version
Metadata Name: CEOS IDN DIF
Metadata Version: 9.7
Creation and Review Dates
DIF Creation Date: 2005-06-06
Last DIF Revision Date: 2012-06-04
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