Passive Microwave and Upcoming GPM Activities Science Advisory Committee Meeting 26 – 28 August, 2014 National Space Science and Technology Center, Huntsville,

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Presentation transcript:

Passive Microwave and Upcoming GPM Activities Science Advisory Committee Meeting 26 – 28 August, 2014 National Space Science and Technology Center, Huntsville, AL

Relevance to SPoRT and Our Partners 1 A partnership has existed between SPoRT – NRL – NHC for 3 to 4 years. SPoRT transitioned NRL products into NHC’s NAWIPS decision support system. NHC desired this capability to ease their need of using their long standing use of NRL web page for the products; while very useful, having the data in NAWIPS provided extra benefits. Provides information in data sparse regions, mainly over water bodies. Also can give details for precipitation structure, type, and intensity when and where conventional IR cannot. In the past year SPoRT has expanded these capabilities to other National Centers.

Current Users and Applications – NHC, TAFB, SAB, CPHC Hurricane monitoring (eye location/existence, ice/rain extent and inferred intensity) Precipitation extent, rate, and type (stratiform / convective) Precipitation in data voids, cyclone location and intensity Potential Users and Applications – Coastal WFOs Precipitation extent, rate, and type in radar-void areas – Alaska WFOs and RFC Sea ice formation, movement, and melt Sea Ice extent and edge – WFOs in General Snow melt, snow cover extent and depth Land surface temperatures in snow free adjacent areas – SPoRT Sea Surface Temperatures - Inclusion into the SPoRT SST Composite Forecast Challenges for Passive Microwave Observations 2

Current Products Disseminated Current Products Disseminated Historically, SPoRT has processed passive microwave data from NRL 1B --- Level 1B, swath brightness temperatures 1C --- Level 1C, intercalibrated swath brightness temperatures (not applicable) 2A --- Level 2A, swath precipitation rates (other products also available) RGB’s --- Level 1B and 1C PCT’s at 37GHz and 89GHz (SPoRT) Current latencies in hours (from satellite overpass to the end user): 3 InstrumentLevel-1BLevel-1CLevel-2ARGBsNotes TMI2.5n/a2.7 AMSR22.0n/a 2.2 AMSR-E now n/a SSM/I2.0n/a2.2 SSMIS2.0n/a2.2 F16, F17, F18 Latencies are approximate, differences mostly attributable to distribution sizes (granules -> orbits)

Product Generation Process 4 Constant query for data via ftp from NRL (soon from GSFC) Level 1 and 2 products are geo-located to a common projection RGB products are generated Data sent to the LDM for distribution to forecast offices and images to the SPoRT web page for internal monitoring and the public Data products for AWIPS-II, N-AWIPS, and soon in the SPoRT Web Mapping Service (WMS)

The GPM Constellation GPM Core (NASA) GMI DPR GPM Constellation Partner Instruments ATMS (NASA/NOAA) MHS (NOAA) AMSR2 SSMIS SAPHIR 5

Near-Future Products GPM Constellation will allow for passive microwave products from twelve instruments (eleven which we will utilize), providing a greater number of overpasses per day 1B --- Level 1B, swath brightness temperatures 1C --- Level 1C, intercalibrated swath brightness temperatures 2A --- Level 2A, swath precipitation rates (other products also available) RGB’s --- Level 1B and 1C PCT’s at 37GHz and 89GHz (SPoRT) Latency in hours --- Green: From GSFC now, Gold: From NRL now, Blue: From GSFC, U/C 6 InstrumentLevel-1BLevel-1CLevel-2ARGBsNotes TMIn/a1.5 * * Short-term availability AMSR2n/a1.5 * * SSMISn/a1.0 * * F16, F17, F18 MHSn/a1.5 * * NOAA-18, NOAA-19, METOP-A, METOP-B ATMSn/a1.5 *n/a SAPHIRn/a2.0n/a No plans to use (183 GHz only) GMI Latencies are approximate, differences mostly attributable to distribution sizes (granules -> orbits) * to be determined, likely a small fraction later than the 1C products

Early GMI Applications 7 89GHz RGB from GPM of Hurricane Iselle in E. Pacific as viewed from NHC NAWIPS display Forecaster Feedback Mark DeMaria (NHC) commented that the inclusion of passive microwave data into the NHC/Tropical Proving Ground was one of the most broadly accepted and welcomed data sets. Forecaster at CPHC on Hurricane Iselle (Aug 2014): “We've definitely been looking at the GMI imagery on NAWIPS and through the NRL TC webpage”.

Summary 8 Continuing and adding partnerships Migrating to use of the GPM Constellation Disseminating products in N-AWIPS, AWIPS-II, and WMS Largest impact to date at NHC and CPHC Promotes use of NOAA & NASA microwave imagery/data

GPM Data Release Schedule June 16th – GMI Level 1 Brightness Temperature swath data. July 14th – GMI Level 2 Precipitation Rate swath data. This includes precipitation rates estimated using the Goddard Profiling algorithm (GPROF14). Early September – DPR Level 2 precipitation rate data will be released via PPS and JAXA. This includes three-dimensional swath data from the DPR Ka- and Ku-band radars. Mid-September - The DPR-GMI Level 2 combined product will be released. December 2014 – NASA’s Level 3 Integrated Multi-Satellite Retrievals for GPM (IMERG) will be released with all available data. This gridded product will have a resolution of 0.1 degrees and updated every 30 minutes from 60⁰N-60⁰S. This will be discussed further in the M&DA session. A