2018-2019 Science Planning Summaries
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2018-2019 USAP Field Season
Project Detail

Project Title

Palmer, Antarctica Long-Term Ecological Research (LTER): Land-shelf-ocean connectivity, ecosystem resilience and transformation in a sea-ice influenced pelagic ecosystem

no photo available
C-021-L Research Location(s): LTER study site


Event Number:
NSF/OPP Award 1440435

Program Manager:
Dr. Jennifer Burns

ASC POC/Implementer:
Samina Ouda / Bruce Felix

Principal Investigator(s)

Dr. Doug Martinson
Columbia University
Lamont-Doherty Earth Observatory
Palisades, New York

Project Web Site:


Supporting Stations: ARSV Laurence M. Gould
Research Locations: LTER study site


Palmer Long-Term Ecological Research (PAL-LTER) started in 1990 to address the hypothesis that the annual sea ice cycle may be the major determinant of spatial/temporal changes in the structure and function of Antarctic marine communities. Research now includes bacteria, viruses, phytoplankton, krill, macrozooplankton, penguins, seabirds, and marine mammals. The PAL-LTER model traces the effects of changing climate, and the extent, duration, and seasonality of sea ice on ecosystem composition and dynamics in the Western Antarctic Peninsula, where satellite observations over the past 35 years indicate the average duration of sea ice cover is now about 90 days shorter. Six collaborative projects deploy on January’s ARSV Laurence M. Gould cruise and/or to Palmer Station. Team members use airborne and underwater vehicles, moorings, numerical modeling, oceanographic cruises, and environmental sampling to address core hypotheses.

Field Season Overview

Physical Oceanography Component: During the annual LTER cruise aboard the ARSV Laurence M. Gould to the LTER research grid, support contractor vessel marine technicians will deploy and recover up to four moorings and will make about 70 conductivity-temperature- depth (CTD) casts to full depth for this project and in collaboration with C-019-L (Schofield) and C-045-L (Ducklow).

Deploying Team Members

  • Samina Ouda