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Ground Radiometer Measurements and Events at CLPX

The U-Mich Ground Radiometers project at CLPX focuses on advanced measurements of radiometric data using truck-based radiometers operating across various frequencies (1.4 GHz to 37 GHz). Led by PI Tony England, the team conducts significant events including large and small tree upwelling, snow course dwell, and elevation scanning. The project aims to gather, analyze, and calibrate data for scientific studies in atmospheric and environmental research. Collaboration among graduates and undergraduate students supports ongoing data collection and analysis for improved understanding of radiative processes.

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Ground Radiometer Measurements and Events at CLPX

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  1. U-Mich Ground Radiometers at CLPX • Tony England, PI,england@umich.edu • Roger De Roo, co-PI,deroo@umich.edu • Haoyu Gu, graduate student,guh@umich.edu • Hanh Pham, graduate student,hpham@umich.edu • David Boprie, technical support • James Glettler, undergraduate student

  2. Equipment at CLPX • Truck-based radiometers • 37 GHz V/H • 19 GHz V/H • 6.7 GHz V/H • 1.4 GHz V/H (?) • Micro-met station

  3. CLPX radiometer events • Large tree upwelling • Small tree upwelling • Snow course dwell • Snow course elevation scan • Large tree downwelling • Sky calibration • ml absorber calibration • Power-up and thermal set point changes

  4. CLPX event descriptions NW W SW Tall Tree Upwelling Tall Tree Downwelling Short Tree Upwelling Snow Dwell Snow Elevation Scan

  5. CLPX events Microwave Radiometer Events, by type & epoch Days of data collection, by radiometer and epoch

  6. Example brightness data (corrected)

  7. CLPX Fisheye pic

  8. IOP3 time series

  9. IOP3 time series (w/o C-V)

  10. IOP4 time series

  11. IOP4 time series (w/o C-V)

  12. IOP4 time series zoom-in

  13. IOP3 Large Tree Upwelling

  14. IOP3 Large Tree Downwelling

  15. IOP3 Lg Tree Dwng (file 39)

  16. IOP3 Snow Elevation Scan

  17. IOP3 Snow Elev. Scan (file 31)

  18. IOP3 calibration consistency 37 GHz 19 GHz C-V C-H

  19. IOP3 reference load issues

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