Millimeter Wave Cloud strongRadarstrong (MMCR) Handbook.pdfVIP

ARM TR-018 Millimeter Wave Cloud Radar (MMCR) Handbook January 2005 K. B. Widener K. Johnson Work supported by the U.S. Department of Energy, Office of Science, Office of Biological and Environmental Research January 2005, ARM TR-018 Contents 1. General Overview 1 2. Contacts 1 3. Deployment Locations and History 1 4. Near-Real-Time Data Plots 2 5. Data Description and Examples 3 6. Data Quality 2 7. Instrument Details 3 Figures Figure 1. 7 Figure 2. 8 Tables Table 1. MMCR Deployment Locations and Dates 1 Table 2. MMCR Data Stream Availability 3 Table 3. Primary Variables 3 Table 4. Secondary Variables 4 Table 6. Dimension Variables 6 Table 7. ARM SGP Site Operation Parameters 1997.09.15 – 2004.08.10 5 Table 8. Calibration Information 6 Table 9. MMCR Antenna Table 7 iii January 2005, ARM TR-018 1. General Overview The millimeter cloud radar (MMCR) systems probe the extent and composition of clouds at millimeter wavelengths. The MMCR is a zenith-pointing radar that operates at a frequency of 35 GHz. The main purpose of this radar is to determine cloud boundaries (e.g., cloud bottoms and tops). This radar will also report radar reflectivity (dBZ) of the atmosphere up to 20 km. The radar possesses a doppler capability that will allow the measurement of cloud constituent vertical velocities. 2. Contacts 2.1 Mentor