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ARM Data Overview

ARM Data Overview. Chuck Long Jim Mather Tom Ackerman. ARM Instrumentation Strategy. Measure all the radiatively important properties of the atmospheric column and the surface radiation budget State parameters (temp, humidity) Cloud occurrence and properties Aerosol optical depth.

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ARM Data Overview

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  1. ARM Data Overview Chuck Long Jim Mather Tom Ackerman

  2. ARM Instrumentation Strategy • Measure all the radiatively important properties of the atmospheric column and the surface radiation budget • State parameters (temp, humidity) • Cloud occurrence and properties • Aerosol optical depth 2

  3. Instrumentation at Darwin ARM site • 35 GHz Radar (cloud properties) • Lidar (pulsed laser; particle and thin cloud properties ) • Sky imagers (cloud cover) • Broad-band and narrow-band radiometers (solar and infrared radiation) • Microwave radiometer (water vapor and liquid water) • Meteorology sensors (temp, humidity, winds) 3

  4. TWP Darwin Site 4

  5. A case studyJanuary 23, 2006 5

  6. mm Cloud Radar – cirrus mode 6

  7. mm Cloud Radar – cirrus mode 7

  8. mm Cloud Radar – boundary layer mode 8

  9. Micropulse lidar (also have ceilometer data) 9

  10. Microwave radiometer (2 channel, vertical looking) 10

  11. Microwave radiometer (2 channel, vertical looking) 11

  12. 12

  13. 13

  14. Other instruments • AERI – Thermal infrared interferometer – provides high resolution spectra in two bands (3-5 m and 8-20 m) • Multi-filter rotating shadowband radiometer (MFRSR) – measures narrow band irradiance – retrieve aerosol optical depth and Angstrom coefficient 14

  15. Data availability • All systems collecting data continuously since beginning of the experiment • All data available essentially on next day basis from ARM archive • Start at www.arm.gov, go to Data and then Data Archive tabs • Quicklook plots (NOTE: Darwin is “C3”) • University of Utah – link on TWP ICE page • ARM browser – start at www.arm.gov, go to Data tab; then “Data plots” tap on right and then “Plot Browser” under Data Quality heading: http://dq.arm.gov/plotbrowser/ 15

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