GV Activities in Brazil: Brazilian initiative towards the establishment of GPM-BR program

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GV Activities in Brazil: Brazilian initiative towards the establishment of GPM-BR program. Carlos A. Morales, Carlos Frederico Angelis, Luiz A. T. Machado, Roberto V. Calheiros, Reinaldo B. Silveira, Maria A. S. Dias, Eduardo Assad, Augusto Pereira, Raimundo N. F. Mussi. GPM-Brazil. - PowerPoint PPT Presentation

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  • GV Activities in Brazil:Brazilian initiative towards the establishment of GPM-BR programCarlos A. Morales, Carlos Frederico Angelis, Luiz A. T. Machado, Roberto V. Calheiros, Reinaldo B. Silveira, Maria A. S. Dias, Eduardo Assad, Augusto Pereira, Raimundo N. F. Mussi

  • GPM-BrazilIn October of 2004, The Space Agency of Brazil (AEB) creates the program with the participation of INPE, INMET, USP, IPMet/UNESP, and EMBRAPA;

    Annual budget for proposal submissions;

    In the first semester of 2005 the Federal Government of Brazil approves the PNAE-2005-2014 with a recommendation for GPM mission.

  • The Brazilian government acknowledges the importance of the global precipitation monitoring and proposes the launch of a Multi Sensor Platform to measure precipitation along with the GPM program. Possible Satellite characteristics:Tropical Orbit Satellite;Microwave Imager similar to INDIAN MATRA sensor;WFI/CCD of CBERS satellite (lightning observations);Data reception and transmission to automatic weather stations;

  • Main Planned ActionsBrazilian Ground Validation network;Rainfall Ground Validation;Development of ground receiver radiometers;Development of microwave radiative transfer code coupled with a NWP model that is operational in Brazil;Dissemination of GPM rainfall products;

  • Brazilian Ground Validation NetworkOperational radars in Brazil:20 - Doppler S-Band 1 - S-Band 1 - Doppler C-Band 1 - Doppler X-Band

    Manufactures:15 - EEC Radars 7 - TECTELCOM 1 - McGillSoftware:17 Gamic; 2 IRIS; 1 EDGE; 1 EDGE; 1 McGill; 1 Univ. Paul Sabatier

  • Automatic weather stations transmitted to CPTEC-INPE

  • Radar Integration - IVolumetric 240 km data are stored, every 15 minutes;CAPPIs are transmitted to CPTEC to produce rainfall mosaics:Rain gauges are stored at CPTEC Second StageVolumetric data will be transmitted to a database;Radar re-processing;Development of rainfall products;Scientific collaboration between INPE, USP, INMET, DEMET, IPMet/UNESP, TECSAT/UNIVAP allowed the integration of 9 weather radars.

  • Radar Integration - II Third Stage7) Other radar institutes are being invited to integrate the network;8) Volumetric data will also be stored in the main database;Hourly adjusted rainfall fields: Radar + gauges + satellite rainfall estimation

  • Rainfall Ground ValidationRainfall characterization: - Rainfall PDFs as a function of precipitating systems; - Mean drop size distribution as a function of precipitating systems; - Mean vertical hydrometeor distributions (aircraft measurements); Validation of Rainfall Estimates: - Retrieval of the bias, and analysis of the bias dependency (rainfall intensity, Cv/St, precipitating systems, and etc.)

  • Main Ground Validation SitePresidente PrudenteBauruSao RoqueSalesopolisSao Jose dos Campos4 - Disdrometers20 Tipping bucketsRadiometers: 7, 22, 31, 43, 92 GHz 1 - DisdrometerRadioSonde56 Automatic weather stations in SP stateCloud microphysics aircraftLightning NetworkUSP/XPOL-2006

  • Ground Receiver Radiometers Collaboration with radio-astronomy groups for Rx development. portable 22 and 31 GHz was tested during the 2002-LBA field campaign; Working now on the new 92 GHz; Tests with the radiometers (7, 22, 31, 43, 92 GHz) in the radio-observatory of Atibaia will be carried out next austral summerRadiometer designed in Brazil (22-31 GHz)

  • Efforts of the Brazilian scientific community towards the ground validation

  • 150 GHz on HSBBorder

  • 183.33 7 GHz on HSB

  • GPROF X PR X Rain Gauges4 months of data over the Amazon RegionRain GaugesPR-2A25GPROF-2A12-V6

  • GPROF X PRCv and St partitions

  • PR X DisdrometerTRMMDisdrometer

  • Horizontal Resolution dependency on Horizontal GradientsTRMM-PRBauru Radar

  • Differences of Tb(85 GHz) x R relationships for precipitation systems size

  • Differences of Tb(85 GHz) x R relationships for precipitation systems size

  • Seasonal intercomparisons between GCM(RegCM) and 3A25-V6 over the continent in Southeastern BrazilDJF10ox10o

  • Planned Field CampaignsBARCA 2006 Amazon Region Radar and aircraft measurements;

    TroCCiBras 2008, (TROCCINOX/HIBISCUS), So Paulo State Radar and aircraft measurements;

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