WEPP History
WEPP History
1984 - Initial project proposal approved and funded.
1985 - First major workshop on USLE revision and replacement held in West Lafayette, Indiana.
1985 - Creation of initial WEPP Core Team.
1987 - The four Government agencies developed a set of User Requirements which
described the basic functions and science of WEPP.
1987~1988 - A large set of field experiments was conducted on both rangeland
and cropland soils in order to determine the erodibility characteristics
for a wide variety of soils.
1987~1989 - An initial version of the WEPP computer program was developed
by ARS scientists at Tucson, Arizona and West Lafayette, Indiana. At the
same time, a stochastic climate generation model was developed by ARS
scientists in Durant, Oklahoma.
1989 - The first public release of WEPP was issued. Updated versions followed
in 1990, 1991, and 1994.
1990~1994 - The WEPP computer code was reprogrammed to a set of coding
standards in an attempt to make the code more maintainable, and improve the
numeric operation efficiency.
1988~1993 - The Soil Conservation Service created a user interface called the
Operational Computer Program (OCP) which allows SCS field users to create and
save the topographic, soils, and plant/management information specific to
particular tracts or fields of land.
1992~1995 - A large effort was made by the ARS to develop a "user friendly"
interface for general WEPP users.
1995 - Release of WEPP watershed/hillslope model at
SWCS sponsored WEPP/WEPS Symposium, Des Moines, Iowa.
Any Comments Would Be Appreciated
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