2022-2023 USAP Field Season
CAREER: Linking cold desert groundwater to thermokarst & chemical weathering in partnership with the Geoscience UAV Academy
Dr. Joseph Levy
Supporting Stations: McMurdo Station
Water tracks are the basic hydrological unit that currently feeds the rapidly-changing polar and permafrost wetlands in the Antarctic McMurdo Dry Valleys (MDV). Despite the importance of water tracks in the MDV hydrologic cycle and their influence on biogeochemistry, little is known about how these water tracks control the unique brine processes operating in Antarctic ice-free areas. Both groundwater availability and geochemistry shape Antarctic microbial communities, connecting soil geology and hydrology to carbon cycling and ecosystem functioning. The objectives of this project are to: 1) map water tracks to determine the spatial distribution and seasonal magnitude of groundwater impacts on the MDV near-surface environment; 2) establish an Unmanned Aerial Vehicle (UAV) academy training earth sciences students to answer geoscience questions using drone-based platforms and remote sensing techniques; and 3) provide a formative step in the development of the PI as a teacher-scholar.
Field Season Overview
Four participants will deploy to McMurdo Station from late November to mid-January, and will spend the majority of their deployment tent-camping in the Dry Valleys. They will move their tent camp and all associated equipment among three field sites: Goldman Glacier Basin, South Fork Wright Valley, and Beacon Valley. They will complete a rotation of all three sites then will revisit Goldman Glacier and Wright Valley, spending approximately one week at each site. Work will focus on identifying, monitoring, and sampling water tracks. At each field site, the group will establish UAV flight lines, set up GPS stations for UAV navigation, deploy sensors, and collect soil and water samples. One UNAVCO participant will travel to each field site with the group on their first rotation to assist with surveying and setup of UAV flight lines. Camp put-in, moves, and take out will be accomplished by helicopter. The group will use Crary Laboratory space for preparing electronics prior to field deployment, and for sorting and repackaging samples after field deployment.
Deploying Team Members