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ARMOR: Dual-Polarimetric Doppler Radar for Meteorological Research

ARMOR is an advanced C-band radar supporting SPoRT objectives, providing real-time data for cloud physics and atmospheric boundary layer research. It offers flexible scanning tools and improved threat detection, aiding in convective initiation and severe storm forecasting. Lightning, satellite, and model data integration enhances forecast accuracy. The radar assists in the validation and assimilation of lightning data, contributing to better precipitation forecasts and storm-scale modeling.

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ARMOR: Dual-Polarimetric Doppler Radar for Meteorological Research

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  1. NSSTC ARMOR Dual-Polarimetric Doppler Radar: A Supporting Resource for SPoRT Dr. Walt Petersen ESSC/NSSTC/UAH November 21, 2005 • ARMOR: Advanced Radar for Meteorological and Operational Research • C-band • Upgrade to dual-polarimetry and solid state transmitter ; finished 3/05 • Control from NSSTC (data archived here also) • Real time data to NWS and Web • Flexible/adaptable tool for interrogation and research of Cloud Physics and ABL within the greater context of SPoRT objectives [SUPPORTING TOOL]

  2. CBL CP CI ARMOR “Boiling Pot”: Convective Initiation • Tools • ARMOR (Flexible high resolution scanning) • LMA/NLDN • SATELLITE • Applications • Improved threat detection • CI detection, short-term forecast • WRF Validation/DA

  3. ARMOR HID X-Z Cross Section Y=-18 km 2.0 km CAPPI dBZ Height (km) ARMOR HID 6.0 km CAPPI dBZ X (km) Sources “cap” the most intense core at top of updraft column and in graupel/small hail (not large hail). Warning Decision Model Validation, DA ARMOR, NEXRAD, LMA Tools: Satellite Validation Lightning 3-D Dynamics/Microphysics Processes: Severe Storms: ARMOR February 21 2005 -40 -10 What does lightning data characterize?

  4. Extension to Space and Model DA What is there? What can be assimilated? GLM The future + GPM VIRS IR TMI 85 GHz TRMM-PR E.g., 21 Feb. 2005 Convection from NASA TRMM Satellite e.g. Lightning flash rate DA Present/Future satellite precipitation retrievals PMW (also model-based) PMW + IR + Lightning? Virtual Radar?

  5. STORM SCALE ARMOR-LMA Cloud Model GLOBAL TRMM Incorporation of Lightning into Models: ICE! Physical basis for improved forecasts IC flash rate controlled by graupel (ice mass) production (and vertical velocity) Flash Rate • Observational Validation: • IWP  Flash Density • Global to Cloud Scale • Use in WRF? (ice is a prognostic) Ice mass REGIONAL SCALE HOUSTON

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