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The Storm Peak Lab Cloud Property Validation Experiment (StormVEx)

The Storm Peak Lab Cloud Property Validation Experiment (StormVEx).

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The Storm Peak Lab Cloud Property Validation Experiment (StormVEx)

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  1. The Storm Peak Lab Cloud Property Validation Experiment (StormVEx) StormVEx Description: From December 2010 - April 2011, the second ARM Mobile Facility (AMF2) was deployed to Steamboat Springs, Colorado, USA, to collect continuous remote sensing data while aerosol and cloud property data were collected by mountain-top probes operated by the Storm Peak Laboratory (SPL) and SPEC Inc. As part of the NSF CAMPS program, the University of Wyoming King Air collected > 50 hours of in situ data above SPL and AMF2. A record of the experiment can be reviewed at http://meteo04.chpc.utah.edu:8080/stormvex/ View Looking Southeast Thunerhead 87° SWACR RHI from Thunderhead (0km) to SPL (arrow) when the photo at left was captured. Christie Peak (AOS) Valley Floor View of Thunderhead from SPL (2/10/2011) Photo By Christy Wall The Winter of 2010/11: Ample cloud cover and frequent precipitation events that ranged from blizzards to light snow, liquid-phase drizzle in light winds to dust storms during March. Conditions at SPL ranged from thick liquid cloud with heavy snowfall to liquid clouds with no measureable precipitation to light snowfall with no measureable liquid phase. In short, both remote and in situ sensors measured an extremely wide range of conditions • Notes: • AMF2 Instrumentation up > 95% of time • HSRL installed at Thunderhead 1/10 Early science: is focusing on the degree to which cloud and precipitation signals can be extracted from the vertically pointing W-band radar spectra and the extent to which cloud and precipitation retrievals derived from vertically pointing data can be applied to off-zenith volume scans. Scanning polarization sensitive W-band radar is revealing the degree to which orientation and riming of snow influence the measurement of radar reflectivity at vertical incidence. This has significant implications for the retrieval of snowfall by cloud radars. Documenting Snowflake Orientation and Habit Sensitivity in W-Band Backscatter and Polarization 3D Cloud Fields Identifying Properties of Cloud and Precip with SWACR Spectra Precipitation Mode Cloud Mode Snowflakes Collected at SPL at 19:30 UTC 87° Azimuth SWACR RHI SPL 1/12/2011 19:45 UTC 10 db enhancement when 2d particles are observed in quiescent conditions! Science Team:RojMarchand, Matt Shupe, Jay Mace, Sergey Matrosov, Gannet Hallar, Ian McCubbin, Art Sedlack, LinneaAvalone, Chuck Long, Paul Lawson AMF2 Staff: Rich Coulter, Brad Orr, Mike Ritsche SPL Staff: Galina Girokova, Tye Atkins, ATSC Staff: NickiHikmon, Mike Reynolds, Karen Sonntag, Tom Web Site Construction and Maintenance: Qiuqing Zhang, Stephanie Avey JPL Staff: Steve Dinardo, Armin Ellis, Simone Tanelli, Civilian Volunteers: Student Volunteers: Will Mace, Betsy Berry, Carolyn Stwertka, Adam Varble, Chisty Wall, Stewart, Ben, Special Mention: Mike Myers and NWS Team in Grand Junction, Steamboat Ski Corp, Kevin Widener and NitinBharadwaj, Funding By: DOE, Desert Research Institute, NASA Jet Propulsion Lab, National Science Foundation. The following have played instrumental roles in StormVEx!

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