Jeff Stith, Andrew Gettelman NCAR is sponsored by the National Science Foundation Southern Ocean Studies: NCAR Measurement capabilities and integrating the measurements with the Community Earth System Model (CESM)
NSF C130: heavy-lift research aircraft 10 + Hours Endurance Typical payload 15,000 lb Range 3100nmi Altitude 26,000 ft
Gulfstream V: A Platform for Global Scale Measurements Long-Range (up to ~5000 n miles ) High Altitude (up to 51,000 feet) Up to ~6000 lb payload Up to 12 hours endurance (10 hours typical) Six under-wing hardpoints Up and Down (2) Co-Aligned 20 inch optical viewports Ample inlets and fuselage hard points
HIAPER Pole-to-Pole (HIPPO) : Global scale research in different seasons Flight Hours: 86 (January 2009) 90 (October 2009) 85 (March 2010) 97 (June 2011) 103 (August 2011) Total Flights : 64 Distance : 171,000 miles Vertical Profiles: 461
3VCPI InstrumentIssues 2DC (fast)No small particles 2DPOnly C130-possible revision 3VCPI (2DS+CPI)Effects of tube still under study SID II-HSmall sample volume. Performance under study, probably best for ci CDPSmall sample volume. Limited to droplets/small ice FSSP (un-shrouded)Similar to CDP UHSASContinuous accumulation mode aerosols CVI, Aerosol Mass Spec, small particle mobility analysis, Special request HOLODEC IIPromising in development HIAPER Cloud Radar InstrumentDescription HIAPER Cloud radarW-band polarmetric radar (scanning) HSRLHigh Spectral Resolution calibrated aerosol lidar (extinction, cross section, depolarization) Wyoming radar and lidar Cloud radar and lidar for C130/ King Air DropsondesBoth aircraft Ground-basedS-Pol, Sounding facilities, surface flux, coming: water vapor DIAL Combination of Radar/lidar with in-situ measurements is very powerful! Airborne instruments
Single particle Holodec II 1 particle in beam at a time 20 cc m Reconstructed image HOLODEC II, a collaborative effort between Michigan Technological University and NCAR/EOL Portions from: Fugal, Beals, Schlenczek, Shaw, Spuler, and Stith, 2012: Comparisons of size distributions of ice particles measured with imaging and holographic airborne instruments. International Conference on Clouds and Precipitation, Leipzig, /4/2013
Beals et al, (2012)Fugal et al., (2012) New Measurements with Holodec II
CESM Southern Ocean HIPPO –domain results overlaid with in situ measurements Preliminary Results
In situ measurements “fit” into CESM model grid box Preliminary Results