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US Calibration/Validation Activities for the ADM/Aeolus Mission

US Calibration/Validation Activities for the ADM/Aeolus Mission. Mike Hardesty and Lars-Peter Riishojgaard. Cal/Val information from Recent ADMAG. Purpose of Cal/Val exercise Quantify accuracy of primary and auxiliary parameters Characterize deviations

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US Calibration/Validation Activities for the ADM/Aeolus Mission

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  1. US Calibration/Validation Activities for the ADM/Aeolus Mission Mike Hardesty and Lars-Peter Riishojgaard

  2. Cal/Val information from Recent ADMAG • Purpose of Cal/Val exercise • Quantify accuracy of primary and auxiliary parameters • Characterize deviations • Recommendations for improvements to processing • Two phases will be commissioned: First (commissioning) and Second (routine) • Call will be worldwide • Proposers must bring their own funding • Access to data only through cal-val team • Announcement of Opportunity: October 1

  3. Specific ADM-Aeolus issues for airborne and ground validations (Oliver Reitebuch) • Does ALADIN need calibration or only validation? • burst-mode operation: Can time and location of satellite observation be predicted or even commanded, e.g. by start time of laser burst operation? • opportunity for validations for 50-km scale observations • satellite-ground: once every 5-10 days in 50 km distance • satellite-aircraft: 2-3 flights in 1 geographical region with 7 s observation time on satellite compared to 4 minutes on aircraft => allows to study measurement (1-10 km) to observation scale (50 km) issues • Ground wind observations of horizontal wind vector needs to be projected onto satellite LOSdirection • L1B Mie winds can be validated with wind measuring instruments; L1B Rayleigh winds (uncorrected for T) can not be validated with other wind measuring instruments, except with A2D which measures also uncorrected Rayleigh wind • L2A aerosol products (backscatter, extinction, cloud base) can be validated, but most ground based lidars point toward zenith • L2B wind products can be validated both for Mie and Rayleigh

  4. 1a/b. What are Level-2B/2C Products?

  5. Assembling a US cal/val effort • Develop a proposal to respond to ESA AO • Put together a team • Define major elements of a US cal/val effort • Direct Observations for comparison • Data evaluation through assimilation into models • Explore funding opportunities (ESA will not provide funding)

  6. Potential Direct Observations • Long term, statistical comparisons • NWS Wind Profiler Network • Boundary layer profilers • Radiosondes • In situ sensors on commercial aircraft • Cloud track winds • Water vapor winds • Surface based lidar measurements during satellite overpasses • Measurement comparison campaigns • TwiLite Airborne lidar • TODWLS • NOAA Airborne HRDL • Notional Hybrid lidar (direct and coherent)

  7. How to proceed? • Develop a basic outline for the cal/val effort • MH and LPR will be points of contact • Interested parties should provide input and outline potential contributions within next two months • Develop funding sources • Potential for funds in the FY 2010 NOAA budget for ADM cal-val activities • Explore opportunities for NPOESS, NASA and DOD funding • Riishojgaard and Hardesty will develop proposal for submission

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