mplcmask: Cloud mask from Micropulse Lidar

Sample plot generated by MPLCMASK. Click to enlarge the image.
Sample plot generated by MPLCMASK. Click to enlarge the image.

An operational cloud boundary algorithm has been implemented for use with the ARM micropulse lidar (MPL) systems. In addition to retrieving cloud boundaries above 500 m, the Micropulse Lidar Cloud Mask (MPLCMASK) value-added product (VAP) applies lidar-specific corrections (i.e., range-square, background, deadtime, and overlap) to the measured backscattered lidar. Depolarization ratio is computed using the methodology developed by Flynn et al. (2007) for polarization-capable MPL systems. The cloud boundaries output from MPLCMASK will be the primary lidar cloud mask for input to the Active Remote Sensing of Clouds (ARSCL) VAP and will be applied to all MPL systems, including historical data sets.

This VAP processes data for the Southern Great Plains, North Slope of Alaska, Tropical Western Pacific, and ARM Mobile Facility sites.

For more information, see the MPLCMASK VAP report.

Measurements

Locations

  • Fixed
  • AMF1
  • AMF2
  • AMF3

Components

mpl: Micropulse Lidar

Related Publications

2015

Shupe MD, DD Turner, A Zwink, MM Thieman, EJ Mlawer, and T Shippert. 2015. "Deriving Arctic Cloud Microphysics at Barrow, Alaska: Algorithms, Results, and Radiative Closure." Journal of Applied Meteorology and Climatology, 54(7), 10.1175/jamc-d-15-0054.1.

2012

Sivaraman C. 2012. ARM Climate Research Facility Quarterly Value-Added Product Report First Quarter: October 01-December 31, 2011. U.S. Department of Energy. DOE/SC-ARM-12-002.

McFarlane S, C Sivaraman, T Shippert, Y Shi, L Riihimake, and K Gaustad. 2012. Value-added Product Highlights from the Cloud-Aerosol-Precipitation Interactions Working Group. Presented at 3rd Atmospheric System Research (ASR) Science Team Meeting. Arlington, VA.

Sivaraman C. 2012. ARM Climate Research Facility Quarterly Value-Added Product Report Fourth Quarter: July 1–September 30, 2012. U.S. Department of Energy. DOE/SC-ARM-12-022.

2011

Sivaraman C, J Comstock, K Johnson, C Flynn, Z Wang, and S McFarlane. 2011. Routine Cloud-boundary Algorithm Development for ARM Micropulse Lidar. Presented at 2nd Atmospheric System Research (ASR) Science Team Meeting. San Antonio, TX.

Sivaraman C. 2011. ARM Climate Research Facility Quarterly Value-Added Product Report January 1–March 30, 2011. DOE ARM Climate Research Facility. DOE/SC-ARM-11-011.

Sivaraman C and J Comstock. 2011. Micropulse Lidar Cloud Mask Value-Added Product Technical Report. U.S. Department of Energy. DOE/SC-ARM/TR-098.

Sivaraman C. 2011. ARM Climate Research Facility Quarterly Value-Added Product Report Fourth Quarter: July 01–September 30, 2011. U.S. Department of Energy. DOE/SC-ARM-11-023.


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