HR: 17:00h
AN: H22I-05    [PDF]
TI: Using CEOP EOP-1 in situ observations to evaluate land surface processes simulated from the NCEP Global Forecast System coupled with the Noah LSM
AU: * Lu, C
EM: Sarah.Lu@noaa.gov
AF: NOAA/NWS/NCEP EMC, 5200 Auth Rd, Camp Springs, MD 20746 United States
AU: * Lu, C
EM: Sarah.Lu@noaa.gov
AF: RS Information Systems, Inc, 1651 Old Meadow Rd 5th Floor, MCLean, VA 22102 United States
AU: Mitchell, K
EM: Kenneth.Mitchell@noaa.gov
AF: NOAA/NWS/NCEP EMC, 5200 Auth Rd, Camp Springs, MD 20746 United States
AB: The Coordinated Enhanced Observing Period (CEOP) is a coordinated international activity aimed to establish an integrated global observing system for the water cycle. It contains satellite data, model and assimilation output, and in situ observations, with a focus on hydrometeorological processes in the atmosphere and land surface. In this study, CEOP EOP-1 (covers the time period from 1 July, 2001 to 30 Sept, 2001) in situ observations are used to evaluate land surface processes simulated in the NCEP Global Forecast System (GFS). Two versions of GFS are used in this experiment, one is the operational version and the other is the experimental version coupled with the Noah Land Surface Model (LSM). The development and subsequent evaluation/assessment of the latter version is part of the efforts to unify the Noah LSM in all NCEP regional and global models and their associated data assimilation systems. The fields of interest for this comparison are surface meteorology and fluxes (such as near-surface temperature, humidity, sensible heat flux, latent heat flux) and sub-surface fields (e.g., soil heat flux, soil temperature, and soil moisture). Among 36 in situ reference sites in the CEOP network, only 10 sites contain both surface and sub-surface observations. This study, therefore, will focus on selected sites where multi-layer soil temperature/moisture observations are available.
DE: 1899 General or miscellaneous
SC: Hydrology [H]
MN: 2003 Fall Meeting