Impact Assesment of a Doppler Wind Lidar for NPOESS/OSSE

The future National POES System (NPOESS) is scheduled to fly during the 2007-2010 period. For the next 10 years, a considerable amount of effort must take place to define, develop and build the suite of instruments which will comprise the NPOESS. The forecast impact of current instruments can be assessed by Observing System Experiments (OSEs), in which already existing observations are denied or added to observations from a standard data base. However, the impact of future instruments must be assessed with experiments using simulated observations. These experiments are known as Observing System Simulation Experiments (OSSEs). (Atlas, 1997) This project is a collaboration among the National Centers for Environmental Prediction (NCEP), NASA/Data Assimilation Office (DAO), Simpson Weather Associates (SWA), and the National Environmental Satellite, Data and Information Service (NESDIS). Through this collaboration, the data assimilation and modeling communities can be involved in instrument design and can provide information about the expected impact of new instruments. Furthermore, through the OSSEs, operational data assimilation systems will be ready to handle new data in time for the launch of new satellites. This process involves preparation for future data volumes in operations, the development of the data base and data-processing (including formatting) and a quality control system. All of this development will accelerate the operational use of data from the future instruments (Lord et al. 1997).

[1]  Timothy L. Olander,et al.  The Impact of Multispectral GOES-8 Wind Information on Atlantic Tropical Cyclone Track Forecasts in 1995. Part I: Dataset Methodology, Description, and Case Analysis , 1998 .

[2]  Ad Stoffelen,et al.  A Simulated Future Atmospheric Observation Database Including ATOVS, ASCAT, and DWL , 1996 .

[3]  G. J. Marseille,et al.  IMPACT ASSESSMENT OF A DOPPLER WIND LIDAR IN SPACE ON ATMOSPHERIC ANALYSES AND NUMERICAL WEATHER PREDICTION , 2000 .

[4]  John Derber,et al.  The Use of TOVS Cloud-Cleared Radiances in the NCEP SSI Analysis System , 1998 .

[5]  L. McMillin,et al.  Atmospheric transmittance of an absorbing gas. 5. Improvements to the OPTRAN approach. , 1995, Applied optics.

[6]  W. Paul Menzel,et al.  A Report on the Recent Demonstration of NOAA's Upgraded Capability to Derive Cloud Motion Satellite Winds , 1991 .

[7]  Robert James Purser,et al.  A Bayesian technique for estimating continuously varying statistical parameters of a variational assimilation , 2003 .

[8]  Robert Atlas,et al.  Atmospheric Observations and Experiments to Assess Their Usefulness in Data Assimilation , 1997 .

[9]  Steven J. Nieman,et al.  Upper-Tropospheric Winds Derived from Geostationary Satellite Water Vapor Observations , 1997 .

[10]  Michiko Masutani,et al.  Note on cloud cover of the ECMWF nature run used for OSSE/NPOESS project , 1999 .

[11]  John Derber,et al.  The National Meteorological Center's spectral-statistical interpolation analysis system , 1992 .

[12]  John Derber,et al.  The use of TOVS level‐1b radiances in the NCEP SSI analysis system , 2000 .