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The North American (NLDAS) and Global (GLDAS) LDAS systems are being
developed that will lead to more accurate reanalysis and forecast
simulations by numerical weather prediction (NWP)
models. Specifically, these systems will reduce the errors in the
stores of soil moisture and energy which are often present in NWP
models and which degrade the accuracy of forecasts. NLDAS is currently
running retrospectively and in near real-time on a 1/8th-degree grid
while GLDAS is running at 1/4 degree resolution. The systems are
currently forced by terrestrial (NLDAS) and space based (GLDAS)
precipitation data, space-based radiation data and numerical model
output. In order to create an optimal scheme, the projects involve
several LSMs, many sources of data, and several institutions. Data
from the project can be accessed on the NLDAS and GLDAS forcing pages,
the NLDAS and GLDAS model output pages, as well as on the NLDAS and
GLDAS Realtime Image Generator pages.
Website: "http://ldas.gsfc.nasa.gov/"
[Summary provided by NASA.]
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