Hydrologic Outlets of the Greenland Ice Sheet  View Catalog Page Entry ID
NSIDC-0372
Summary
The Hydrologic Outlets of the Greenland Ice Sheet data set contains GIS point shapefiles that include 891 observed and potential hydrologic outlets of the Greenland Ice Sheet, as identified by Lewis and Smith (2009), using satellite imagery. There are 460 observed hydrologic outlets that include proglacial streams and rivers emerging from the ice sheet (length scale >1 km), proglacial lakes touching the ice edge or clearly connected to it via streams or rivers (length scale >3 km), and sediment-rich plumes exiting tidewater glaciers into fjörds. Also, there are 431 potential hydrologic outlets that include point locations with release of meltwater from fjords without obvious sediment discharge, as well as locations where the ice sheet directly connects to the ocean that cannot be proven to release meltwater.
Meltwater features along the entire edge of the ice sheet were mapped via photo interpretation of GoogleEarth and Landsat ETM+ 15 m panchromatic data. The exact acquisition dates of the imagery are not available; however, owing to the light and relatively snow-free conditions seen in the GoogleEarth and Landsat images, it is presumed that they were taken during the summer season. Neither Landsat or GoogleEarth images were available for a section of ice sheet within the northern Tunu region; therefore, that region was excluded from the study. This excluded area represents approximately 0.9 percent of the ice sheet perimeter. Data are available via FTP, and can be read in any GIS software. The following journal article provides documentation for this data set: Lewis, Sarah and Laurence Smith. 2009. Hydrologic Drainage of the Greenland Ice Sheet. Hydrological Processes doi: 10.1002/hyp.7343. This journal article can be accessed from the Access External Documentation link at the top of this Web page.
Geographic Coverage
Spatial Coordinates:
N: 85.02649°
S: 59.58015°
E: -8.96739°
W: -80.79734°
|
|
Data Set Citation
Dataset Creator: Sarah Lewis
Dataset Title: Hydrologic Outlets of the Greenland Ice Sheet
Dataset Release Date: 2009-06-07
Dataset Release Place: Boulder, Colorado USA
Dataset Publisher: NSIDC: National Snow and Ice Data Center
Online Resource: http://nsidc.org/data/nsidc-0372.html
Temporal Coverage
Start Date: 1991-01-01
Stop Date: 2000-12-31
Location Keywords
- CONTINENT NORTH AMERICA GREENLAND
Science Keywords
- Cryosphere Snow/Ice Snow Melt
- Terrestrial Hydrosphere Snow/Ice Snow Melt
- Terrestrial Hydrosphere Surface Water Discharge/Flow
- Terrestrial Hydrosphere Surface Water Drainage
- Terrestrial Hydrosphere Surface Water Runoff
Ancillary Keywords
- Drainage
- Greenland
- Ice Sheet
- Snow Melt
Platform
- Google Earth
- LANDSAT-7
- SATELLITES
Instrument
- ETM+ Enhanced Thematic Mapper Plus
Project
- NSIDC_CCAWS Cryospheric Change Analysis Web Services
Data Set Progress
complete
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
Cryospheric Change Analysis Web Services
Data Center URL: http://nsidc.org/data/parca/index.html
Data Center Personnel
Name: NSIDC CCAWS User Services
Phone:
Fax:
Email: nsidc@nsidc.org
Distribution
Distribution Media: FTP
Distribution Size: 1 - 120 KB
Distribution Format: ESRI Shapefiles
Personnel
Sarah Lewis
Role: INVESTIGATOR
Email: sarahlewis@berkeley.edu
Contact Address:
- UCLA Berkeley
- Geography Department
- 122 Mulford Hall #3114
City: Berkeley
Province or State: CA
Postal Code: 94720-3114
Country: USA
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
Related URL
VIEW PROJECT HOME PAGE
PARCA Data Web site
VIEW PROJECT HOME PAGE
PARCA Data Web Site
Reference
Lewis, Sarah, Laurence Smith. Hydrologic Drainage of the Greenland Ice Sheet. Hydrological Processes, 2009. DOI: 10.1002/hyp.7343
Metadata Name and Version
Metadata Name: CEOS IDN DIF
Metadata Version: 9.7
Creation and Review Dates
DIF Creation Date: 2009-06-07
Last DIF Revision Date: 2012-07-16
| 
Home | Contact Us
