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Operational Use of SPoRT Imagery at NWS Albuquerque

This presentation discusses the operational use of NASA SPoRT imagery at NWS Albuquerque, including the blending of instruments in the CIRA TPW data set and the differences between the CIRA TPW product with MIRS and the NESDIS version without MIRS.

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Operational Use of SPoRT Imagery at NWS Albuquerque

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  1. NWS / SPoRT Coordination CallOctober 2010 NWA posters/presentations Scott Overpeck, Chris McKinney, and Kent Prochazka, WFO Houston/Galveston. The Coastal Gravity Wave Event of 24 April 2010. Deirdre Kann and Brian Guyer, WFO Albuquerque. The Operational Use of NASA SPoRT Imagery at NWS Albuquerque. CIRA TPW - Newest Version We will discuss the recent change to the CIRA TPW data set being provided through SPoRT which is using the MIRS data vs the current operational NESDIS version without MIRS.

  2. What Instruments were blended in the initial product by CIRA? GOES Sounderfills individually AMSU & SSM/Iover water areas GPS-METsmoothed over land AMSU & SSM/Iover water areas GOES Sounderfills individually • Up to 8 may be used • 5 AMSU (NOAA/POES & MetOp), 1 SSM/I (DMSP) • Passive micro. over water • Micro. over land still being researched • GPS (only over land) • Interim use overland • 300-400 stations • Caribbean, CA, Oil rigs • Highly accurate • GOES Sounder DPI

  3. Things to Watch Out for….. Blended TPW GOES DPI Drier Sierras,Wetter Valley Time ~ 00 UTC MIRS • GPS bias for rough terrain

  4. The new CIRA TPW product • Based on use of MIRS • Microwave Integrated Retrieval Systemhttp://mirs.nesdis.noaa.gov/ • Presently from subset of satellites and has slower refresh rate vs old product • Overland priority: 1) GPS-met, 2) GOES Sounder, 3) MIRS • “Overlay” vs “Averaged” Product • The overlay advantage is a more realistic movement of moisture surges; but the final TPW product appears patchy with discontinuities at swath edges • Binomial smoother is used to lessen discontinuities from “overlay” method. • GPS-met and GOES Sounder used only over land • GPS for isolated locations use smaller circle of influence

  5. Coverage of CIRA TPW from SPoRT CIRA version, MIRS-based NESDIS version, no MIRS

  6. Max. TPW Value Differences CIRA TPW (w/ MIRS) NESDIS TPW (no MIRS) Areas of maximum TPW in CIRA version are lower, due to binomial smoother, differences in data used and timing of data processing.

  7. CIRA TPW Anomaly Differences CIRA TPW (w/ MIRS) NESDIS TPW (no MIRS) Smaller area of 200% of normal. Noticeable couplet of max/min in NESDIS version compared to CIRA over Nevada.

  8. Next Generation CIRA TPW • This is the future type of the product that is likely to be supplied by NESDIS to the WFOs. • Anticipating more details from CIRA on the new product validation and caveats • Evaluation feedback needed from end users due to noted differences in final product.

  9. Next Call – November 18, 2010 • Main topic: GOES-R Proving Ground products to be evaluated by SPoRT partners • Lightning: A Pseudo-GLM product has been developed by SPoRT. Evaluation of this product is needed using WES cases. • Imagery: Several groups are creating ABI proxy products. SPoRT is focusing on near-realtime products to simulate ABI. This will combine GOES and MODIS (possibly VIIRS in future) at the resolution of ABI in order to prep users for the coming GOES-R era. Evaluation in a concentrated time period is needed for those willing.

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