Cloud System Evolution in the Trades (CSET) was developed to describe and explain the evolution of the MBL aerosol, cloud, and thermodynamic structures along trajectories within the North Pacific trade winds using the National Science Foundation-National Center for Atmospheric Research (NSF-NCAR) Gulfstream V [GV; also known as High-Performance Instrumented Airborne Platform for Environmental Research (HIAPER)] on flights between California and Hawaii.
Upward and downward longwave (LW) and upward shortwave (SW) radiative fluxes were measured by Kipp and Zonen broadband radiometers; the HIAPER Airborne Radiation Package (HARP) provided upward and downward shortwave spectral irradiances.
Two key remote sensing systems used on the GV during CSET were the HIAPER Cloud Radar (HCR) developed by NCAR EOL and the high-spectral-resolution lidar (HSRL) developed under the NSF HIAPER Aircraft Instrumentation Solicitation (HIAS).
Scientists generally have to rely on ground measurements and then use mathematical models to extrapolate upwards when they need to create a picture of the global atmosphere, said Steve Wofsy, an atmospheric researcher at Harvard University in Cambridge, Massachusetts, and the principal investigator for the 4-million dollar HIAPER
Pole-to-Pole Observations (HIPPO) project.
Beaton, 2014: Hemispheric comparison of cirrus cloud evolution using in situ measurements in HIAPER
HIAPER's pole-to-pole mission will, for the first time, give scientists real-time global observation data to correlate with those climate models.
HIAPER is short for the National Science Foundation's High-performance Instrumented Airborne Platfrom for Environmental Research.
Finescale structures, including cloud-top generating cells, wave motions, and boundary layer circulations, are revealed within a major Northeast snowstorm using the new High-Performance Instrumented Airborne Platform for Environmental Research (HIAPER) Cloud Radar.
A unique scientific opportunity developed in late 2014 when the testing phase of the new National Science Foundation (NSF)-National Center for Atmospheric Research (NCAR) High-Performance Instrumented Airborne Platform for Environmental Research (HIAPER; UCAR/NCAR 2015) Cloud Radar (HCR) neared completion at NCAR.
This paper presented examples of the finescale structural features present within a major Northeast United States snowstorm as viewed with the new HIAPER Cloud Radar aboard the NCAR GV aircraft.
It might be mentioned that jet-powered research aircraft, such as the National Science Foundation (NSF)/National Center for Atmospheric Research (NCAR) High-Performance Instrumented Airborne Platform for Environmental Research (HIAPER
) Gulfstream-V and the NASA Falcon have the same advantages of speed, rate of climb, and high ceiling, as well as significantly greater range and payload.