Aerial Assessment of Liquid in Clouds at Oliktok Field Campaign Report

Program Document · Tue Jul 10 04:00:00 EDT 2018

OSTI ID:1459557

Roesler, Erika L ^[1]; Dexheimer, Dari ^[1]; Longbottom, Casey ^[1]; Helsel, Fred ^[1]; Apple, Monty ^[1]; Hillman, Ben ^[1]; Hardesty, Joe ^[1]; Ivey, Mark ^[1]

---

1. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

The Aerial Assessment of Liquid in Clouds at Oliktok (AALCO) Intensive Operation Period (IOP) began in October 2016 and ended in October 2017 at the U.S. Department of Energy (DOE) Atmospheric Radiation Measurement (ARM) third Mobile Facility (AMF3) at Oliktok Point, Alaska (https://www.arm.gov/research/campaigns/amf2016aalco). The operations tested super-cooled liquid water sensors (SLWCs), leaf-wetness sensors, radiosondes, and a distributed temperature sensor (DTS) on tethered balloon system (TBS) platforms throughout the period. An auto-reeler system, a helikite, and an aerostat were tested. When conditions were optimal, the aerostat was preferred to the helikite and the auto-reeler. It was found that the SLWCs had better transmission and sensitivity to relay information about the near-surface cloudy boundary layer than the leaf-wetness sensors. The DTS was also found to give useful information about the atmospheric column and deployment is condition-dependent. Results from the SLWCs and DTS are being compared with high-resolution large-eddy simulations (LES) in the System for Atmospheric Modeling (SAM) (Khairoutdinov and Randall, 2003).

• Research Organization: DOE Office of Science Atmospheric Radiation Measurement (ARM) Program (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Biological and Environmental Research (BER) (SC-23)
• OSTI ID: 1459557
• Report Number(s): DOE/SC-ARM-18-024
• Country of Publication: United States
• Language: English

Related Subjects

North Slope of Alaska
Oliktok Point
aerosols
Arctic processes
tethered balloon system
clouds
boundary layer