Carroll, Mark: NASA GSFC (Project Lead)
DiMiceli, Charlene: University of Maryland (Co-Investigator)
Sohlberg, Robert: University of Maryland (Co-Investigator)
Townshend, John: University of Maryland (Co-Investigator)
Wooten, Margaret (Maggie): NASA GSFC / SSAI (Participant)
Project Funding:
2013 - 2016
NRA: 2012 NASA: Pre-ABoVE: Terrestrial Ecology
Funded by NASA
Abstract:
The proposed Arctic and Boreal Vulnerability Experiment (ABoVE) will conduct multi-disciplinary studies to explore and quantify the linkages between all of the individual components of the ecosystem. One common thread identified in the final report for the scoping study for ABoVE is the need for maps of the location, extent and dynamics of surface water to connect the different disciplines. Water represents a transport vehicle for nutrients and other solutes, provides habitat for flora and fauna, and has a controlling effect on surface energy exchange yet it remains one of the least characterized features of the study region. Key questions identified in the scoping study for the campaign require knowledge of the surface and sub-surface hydrology. Changes in permafrost can both contribute to and be affected by changes in surface hydrology. Small, shallow lakes and ponds provide habitat for migratory animals. At the landscape scale the multitude of small lakes together represent a significant variable in the energy balance of the region that is largely unaccounted for. We propose to utilize a time series of Landsat data to produce maps of surface water extent covering the entire Boreal and Tundra regions of North America for three epochs 1991, 2001, 2011 at 30m spatial resolution. Each of the maps will be generated with at least 3 years of ice free data and will enable future work for the ABoVE campaign in determining the dynamic changes in small water bodies that dominate the region. Data will be provided in vector format with attributes to include: minimum, maximum and average size; date of last detected ice; and number of ice free days. For the 2001 and 2011 epochs MODIS data will be used to clarify the ice free period where appropriate. This is a data generation project in support of ABoVE and can be completed in 2 years.
Publications:
Carroll, M., Wooten, M., DiMiceli, C., Sohlberg, R., Kelly, M. 2016. Quantifying Surface Water Dynamics at 30 Meter Spatial Resolution in the North American High Northern Latitudes 1991-2011. Remote Sensing. 8(8), 622. DOI: 10.3390/rs8080622
2015 NASA Carbon Cycle & Ecosystems Joint Science Workshop Poster(s)
- ABoVE water maps: 30m spatial resolution maps of water at decadal time step from 1990 - 2011
-- (Mark Carroll, Margaret Wooten, Charlene DiMiceli, Robert Sohlberg, John R. Townshend)
[abstract]
More details may be found in the following project profile(s):
