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Global Change Master Directory (GCMD)
Global Lakes and Wetlands Database
Entry ID: GLWD


Summary
Abstract: The global lakes and wetlands database GLWD has been developed in partnership
with the Center for Environmental Systems Research, University of Kassel,
Germany. It is available for download as three separate ArcView layers (two
polygon shapefiles and one grid). The files have been compressed using WinZip
and are 46 MB in total size.

The database consists of (1) large lakes and reservoirs, (2) smaller water
bodies, and (3) wetlands.

The first level comprises shoreline polygons of 3067 of the largest lakes (>=50
km**2) and 654 of the largest reservoirs (storage capacity >=0.5 km**3)
worldwide. The second level comprises the shoreline polygons of permanent open
water bodies with a surface area >=0.1 km**2. The 250,000 polygons in Level 2
are attributed to lakes, reservoirs and rivers. Level 3 comprises lakes,
reservoirs, rivers and wetlands at 30-second resolution.

According to the GLWD, lakes and reservoirs cover a total of approximately 2.7
million km**2 or 2.0% of the global land surface area, while wetlands are
about 8-10 million km**2 or 6.2-7.6%.

Data Sources used include:
- MSSL Global Lakes Database (Birkett and Mason, 1995)
- Large Reservoirs (Vorosmarty, et al. 1997)
- World Register of Dams (ICOLD, 1998)
- Digital Chart of the World, hydrography layer (ESRI, 1993)
- ArcWorld 1:3M hydrography layer (ESRI, 1992)
- WCMC Global Wetlands Map (WCMC, 1993)
- Global Land Cover Characterization (Loveland, et al, 2000)

Related URL
Link: View Related Information
Description: Access to the GLWD and documentation

Geographic Coverage
 N: 90.0 S: -90.0  E: 180.0  W: -180.0

Data Set Citation
Dataset Creator: Lehner, B. and P. Doll
Dataset Title: Global Lakes and Wetlands Database
Dataset Release Date: 2004-01-01T00:00:00.000Z
Dataset Release Place: Washington, D.C.
Dataset Publisher: World Wildlife Fund
Version: Not provided
Online Resource: http://www.worldwildlife.org/science/data/globallakes.cfm


Temporal Coverage
Start Date: 1970-01-01


Location Keywords
GEOGRAPHIC REGION > GLOBAL
GEOGRAPHIC REGION > GLOBAL LAND


Science Keywords
BIOSPHERE >ECOSYSTEMS >AQUATIC ECOSYSTEMS >WETLANDS    [Definition]
BIOSPHERE >ECOSYSTEMS >AQUATIC ECOSYSTEMS >WETLANDS >ESTUARINE WETLANDS    [Definition]
BIOSPHERE >ECOSYSTEMS >AQUATIC ECOSYSTEMS >WETLANDS >LACUSTRINE WETLANDS    [Definition]
BIOSPHERE >ECOSYSTEMS >AQUATIC ECOSYSTEMS >WETLANDS >MARSHES    [Definition]
BIOSPHERE >ECOSYSTEMS >AQUATIC ECOSYSTEMS >WETLANDS >PALUSTRINE WETLANDS    [Definition]
BIOSPHERE >ECOSYSTEMS >AQUATIC ECOSYSTEMS >WETLANDS >PEATLANDS    [Definition]
BIOSPHERE >ECOSYSTEMS >AQUATIC ECOSYSTEMS >WETLANDS >RIPARIAN WETLANDS    [Definition]
BIOSPHERE >ECOSYSTEMS >AQUATIC ECOSYSTEMS >WETLANDS >SWAMPS    [Definition]
BIOSPHERE >ECOSYSTEMS >FRESHWATER ECOSYSTEMS >LAKE/POND    [Definition]
BIOSPHERE >ECOSYSTEMS >TERRESTRIAL ECOSYSTEMS >WETLANDS    [Definition]
BIOSPHERE >ECOSYSTEMS >TERRESTRIAL ECOSYSTEMS >WETLANDS >ESTUARINE WETLANDS    [Definition]
BIOSPHERE >ECOSYSTEMS >TERRESTRIAL ECOSYSTEMS >WETLANDS >LACUSTRINE WETLANDS    [Definition]
BIOSPHERE >ECOSYSTEMS >TERRESTRIAL ECOSYSTEMS >WETLANDS >MARINE    [Definition]
BIOSPHERE >ECOSYSTEMS >TERRESTRIAL ECOSYSTEMS >WETLANDS >MARSHES    [Definition]
BIOSPHERE >ECOSYSTEMS >TERRESTRIAL ECOSYSTEMS >WETLANDS >PALUSTRINE WETLANDS    [Definition]
BIOSPHERE >ECOSYSTEMS >TERRESTRIAL ECOSYSTEMS >WETLANDS >PEATLANDS    [Definition]
BIOSPHERE >ECOSYSTEMS >TERRESTRIAL ECOSYSTEMS >WETLANDS >RIPARIAN WETLANDS    [Definition]
BIOSPHERE >ECOSYSTEMS >TERRESTRIAL ECOSYSTEMS >WETLANDS >SWAMPS    [Definition]
TERRESTRIAL HYDROSPHERE >SURFACE WATER >SURFACE WATER FEATURES >LAKES/RESERVOIRS    [Definition]
TERRESTRIAL HYDROSPHERE >SURFACE WATER >SURFACE WATER FEATURES >WETLANDS    [Definition]


Platform
MAPS    [Information]


Access Constraints
GLWD is available for non-commercial scientific, conservation, and educational
purposes. Any modification of the original data by users must be noted. By
submitting the download request you agree to the regulations of the data
disclaimer (PDF format, 15k). See:
http://www.worldwildlife.org/science/data/globallakes.cfm


Use Constraints
Credit the following and fill out the short form at
http://www.worldwildlife.org/science/data/globallakes.cfm
Lehner, B. and P. D?ll (2004): Development and validation of a global database
of lakes, reservoirs and wetlands. Journal of Hydrology 296/1-4: 1-22.


Keywords
lakes
reservoirs
wetlands
rivers
GIS
polygons


Data Set Progress
COMPLETE


Data Center
World Wildlife Fund    [Information]
Data Center URL: http://www.worldwildlife.org/

Data Center Personnel
Name: BERNHARD LEHNER
Email: bernhard.lehner at wwfus.org
Contact Address:
Conservation Science Program
City: Washington
Province or State: DC
Postal Code: 20037
Country: USA



Distribution
Distribution_Media: online, www
Distribution_Size: 46.0 MB
Distribution_Format: shapefiles
Fees: none


Personnel
BERNHARD LEHNER
Role: INVESTIGATOR
Email: bernhard.lehner at wwfus.org
Contact Address:
Conservation Science Program
City: Washington
Province or State: DC
Postal Code: 20037
Country: USA


PETRA DOLL
Role: INVESTIGATOR
Phone: 49.561.804.3913
Email: doell at usf.uni-kassel.de
Contact Address:
Center for Environmental Systems Research
Kurt-Wolters-Strasse 3
Room 2208
City: Kassel
Postal Code: 34109
Country: Germany


Extended Metadata Properties
(Click to view more)

Creation and Review Dates
DIF Creation Date: 2004-09-22
Last DIF Revision Date: 2018-11-08



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