2019-2020 USAP Field Season
Continental-scale studies of Mesospheric dynamics using the Antarctic Gravity Wave Instrument Network (ANGWIN)
Dr. Michael Taylor
Supporting Stations: McMurdo Station, Palmer Station, South Pole Station
The Antarctic Gravity Wave Imaging Network (ANGWIN) is a cooperative effort of six international Antarctic programs to collect continent-wide gravity-wave measurements. This network capitalizes on existing optical and radar measurement capabilities at McMurdo, Palmer, South Pole, and six other research stations: Halley (UK), Syowa (Japan), Davis (Australia), Rothera (UK), and Ferraz (Brazil). Infrared (IR) all-sky mesospheric OH (hydroxyl) imagers are installed at Davis, McMurdo, and Halley stations. The network quantifies the properties, variability, and momentum fluxes of short-period (less than one hour) mesospheric gravity waves and their dominant sources and effects over the Antarctic continent. An all-sky near-IR imager is also installed at Palmer Station to augment the existing instrumentation and create a capability for studying gravity wave properties at each site.
Field Season Overview
This is the last field season in the current project. Following recent discussions with NSF, the science team requested permission to defer retrograde pending consideration of a new proposal to continue operations as part of the ANGWIN network. During winter operations, approximately one hour per week of support by an ASC Research Associate for system maintenance, troubleshooting, and data download is required. The team will not visit Palmer station this season. Two team members will deploy to McMurdo to service the all-sky imager and the Advanced Mesospheric Temperature Mapper (AMTM) at Arrival Heights. They will then go to South Pole to work on the imaging instruments located there.