10.5065/D6J10187
Sturm, M.
US Army
Racine, C.
Sturm, M.
US Army
A Half-Century of Change in Arctic Alaskan Shrubs: A Photographic-Based Assessment. Version 1.0
UCAR/NCAR - Earth Observing Laboratory
2011
scientific data
biota
Arctic
Land Character
Ancillary Info
Aerial Photographs
Maps/Charts/Photographs > > AERIAL PHOTOGRAPHS > > 3cb5948f-2a92-4c2a-9410-eb17a1045d8e
Cameras
Earth Remote Sensing IEarth Remote Sensing Instruments > Passive Remote Sensing > Photon/Optical Detectors > Cameras > CAMERAS > > b434201b-4969-4a7e-8749-ba5b7c537c2f> b434201b-4969-4a7e-8749-ba5b7c537c2f
EARTH SCIENCE > BIOSPHERE > VEGETATION > VEGETATION COVER
EARTH SCIENCE > CLIMATE INDICATORS > BIOSPHERIC INDICATORS
EARTH SCIENCE > CLIMATE INDICATORS > LAND SURFACE/AGRICULTURE INDICATORS > VEGETATION COVER
ARCSS
NSF Arctic System Science
A - C > ARCSS > Arctic System Science > b8cdc313-fb09-4796-99ac-079de0dcb042
University Corporation For Atmospheric Research (UCAR):National Center for Atmospheric Research (NCAR):Earth Observing Laboratory (EOL):Data Managment and Services (DMS)
Sturm, Matthew, msturm@crrel.usace.army.mil
US Army
Sturm, Matthew, msturm@crrel.usace.army.mil
US Army
1948-01-01T01:01:00Z/2003-12-31T23:59:59Z
2011-05-17T09:08:45Z
en
106.ARCSS130
https://data.eol.ucar.edu/file/download/41E657432E2/GPS_photo_locations.xls
https://data.eol.ucar.edu/file/download/41E657432E6/map.JPG
https://data.eol.ucar.edu/file/download/41E657432E3/NOTES.txt
https://data.eol.ucar.edu/arctic_projects/arcss/Data_Policy.html
https://www.eol.ucar.edu/field_projects/arcss
23 data files
3 ancillary/documentation files
11 GiB
TAR: Unix Tape ARchive (TAR) Format File (application/x-tar)
1.0
These data are available to be used subject to the University Corporation for Atmospheric Research ("UCAR") terms and conditions.
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. 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 approximately 11 GB. The images should not be published without the consent of the investigators.
-165.00000
-145.00000
68.00000
70.00000