Impact of land-surface initial conditions spin-up on warm season predictability simulated by the NCEP GFS coupled with the Noah LSM

Cheng Hsuan Lu, Kenneth Mitchell

Research output: Contribution to journalConference articlepeer-review

Abstract

The NCEP Global Forecast System (GFS) coupled with the NOAH Land Surface Model (LSM) simulated impact of land-surface initial conditions spin-up on warm season was discussed. Two versions of GFS used includes: the operational version of GFS which utilizes the oregon state university land surface model and an experimental version coupled with the latest version of the NCEP Naoh LSM. The impact of land state spin-up was evident for soil wetness at deep layers, while the impact on other fields was less evident. A better agreement with R-2 soil wetness analysis was found and a positive impact on precipitation was observed.

Original languageEnglish
Pages (from-to)3491-3495
Number of pages5
JournalBulletin of the American Meteorological Society
StatePublished - 2004
EventCombined Preprints: 84th American Meteorological Society (AMS) Annual Meeting - Seattle, WA., United States
Duration: Jan 11 2004Jan 15 2004

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