EarthSun System Division National Aeronautics and Space Administration

Earth-Sun System Division National Aeronautics and Space Administration Development and Transition of Satellite Products for SPo. RT FY 06 Plans • Prototype product development • Transition to operations SPo. RT SAC Nov 21 -22, 2005

Earth-Sun System Division National Aeronautics and Space Administration Prototype Product Development Refining capabilities to demonstrate feasibility of linking EOS observations to short-term weather forecast problems AIRS profile assimilation – ADAS / WRF • optimize procedures based on representitiveness of profiles • utilize advanced AIRS quality indicators for temperature and moisture (vers. 5. x of retrieval code) • regional case studies over SEUS Radiance data assimilation – Cloud free channels, appropriate resolution, smart data thinning • 4 DVAR (FSU) – use of MODIS cloud pressure data • 3 DVAR (in-house - Mc. Carty) – NASA Fellowship – CO 2 sorting to detect cloud-free channels – collaborate with GMAO/JCSDA AIRS data thinning – profiles and radiances • smart thinning based on meteorology, data types, data spacing MODIS composite SST product – AMSR-E data, expand region for more applications SPo. RT SAC Nov 21 -22, 2005

Earth-Sun System Division National Aeronautics and Space Administration Radiance Data Assimilation Collaborations with Xiaolei Zou (FSU) have illuminated greater understanding of the radiance data assimilation problem FSU is implementing a 4 DVAR approach with the MM 5 • Developed adjoint RTM and integration into MM 5 Adjoint Modeling System (MM 5 -AMS) • Conducted sensitivity studies with AIRS channels to verify adjoint Preliminary FSU work • single fov, few channels • cloud-free radiances- total column clear based on MODIS data • <5% data coverage – min. impact Current FSU activity • MODIS CTP to determine cloud-free channels above low clouds • additional channels SPo. RT SAC Nov 21 -22, 2005

Earth-Sun System Division National Aeronautics and Space Administration Radiance Data Assimilation Use CO 2 sorting approach to explicitly identify channels contaminated by clouds (SPo. RT – Mc. Carty NASA Fellowship) 3 DVAR approach requires cloud-free radiances – total column clear requirement eliminates most data Short term goals: increase the amount of cloud-free AIRS radiance data available for assimilation by including data above clouds • significant increase in radiances • add data in meteorologically significant regions (above clouds) Ø Refine sorting technique for 15 m CO 2 absorption continuum Ø Validate technique based on CTPs from MODIS cloud product and Cloud. Sat/CALIPSO CLOUD-FREE CHANNELS (%) Ø Extend technique to WV channels SPo. RT SAC Nov 21 -22, 2005

Earth-Sun System Division CO 2 Sorting Approach National Aeronautics and Space Administration In a low-cloud IFOV (column 2), all of the bands denoted by the red weighting functions can be used Clear Low Cloud High Cloud Ø The position of the separation point is a function of cloud top pressure and the magnitude of the separation is a function of effective cloud fraction Ø The clear scene is dependant on a background field and determined by radiative transfer calculations SPo. RT SAC Nov 21 -22, 2005

Earth-Sun System Division National Aeronautics and Space Administration 3 DVAR Radiance Data Assimilation (SPo. RT) Improved set of AIRS cloud-free radiances used for 3 DVAR • Gridpoint Statistical Interpolation (GSI) system and WRF • GSI is supported by the JCSDA and the GMAO • Mc. Carty to the JCSDA / GMAO in the Summer of 2006 q develop working understanding of GSI / WRF work collaboratively to develop improved implementation of CO 2 sorting approach q • Implement enhanced CO 2 sorting and 3 DVAR code at SPo. RT SAC Nov 21 -22, 2005

Earth-Sun System Division National Aeronautics and Space Administration Transition to Operations Transfer viable prototype capabilities to operational setting Continue transition of MODIS / AMSR-E data and products to coastal Florida WFOs – Limited products to support specific problem areas • Jacksonville, Melbourne • Spaceflight Meteorology Group (Houston) for shuttle support • benchmark few selected products/capabilities Transition selected NESDIS products for operational demonstration • work with ORA / others to identify products • develop transitional methodologies SPo. RT SAC Nov 21 -22, 2005