Assess Observation Impacts in the Hybrid GSI- EnKF D ata A ssimilation Systems for NCEP Global Forecast System Model Through OSE and Ensemble Based Observation Impact Metric. Govindan Kutty M and Xuguang Wang University of Oklahoma, Norman, OK, USA. EnKF workshop, May 22, 2012.
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Assess Observation Impacts in the Hybrid GSI-EnKFData Assimilation Systems for NCEP Global Forecast System Model Through OSE and Ensemble Based Observation Impact Metric
EnKF workshop, May 22, 2012
Wang et al., 2012
72hr specific humidity
Zonally averaged impact (temp RMSE diff.) – 72hr
Zonally averaged Impact (Sp.hum. RMSE diff.) -72 hr
Anomaly correlation for geopotential height (GSI)
Anomaly correlation for geopotential height (Hybrid)
Relative impact for geopotential height (500hPa)
Rawinsonde temp. impact for 24 hour temp. forecast
Rawinsonde temp. impact for 24 hour wind forecast
- 5 day forecast (Adaptive localization)
(Kelly et al., 2007)