Field Work 2000/2001

Antarctic Research
Summary of project
Personnel
Collaborators
Publications (since 1998) and completed manuscripts
Publication for 1997 and before
Photos
Maps
Field work 1999/2000
Field work 2000/2001
Ongoing scientific work

Field Season 2000/2001

Title:

Energy Transfer Through Antarctic Sea Ice (S263)

Personel:

The following people presented S263 during the last field season:

  • PI: Dr. Gerd Wendler
  • Staff: Blake Moore

Purpose:

The goal of the study is to obtain a better understanding of the energy fluxes from the ocean to the atmosphere or vice versa. Sea ice, especilly when snow covered, acts as an insulation layer, the efficiency of which depends on its type and thickness. We are especially interested in the coastal areas of Adelie Land where the strong katabatic wind can drive the ice away from the shore, and frequently thin sea ice is observed.

Location:

Onboard Polar Sea.

Project Description:

The team boarded the POLAR STAR on 14 December 2000 in Hobart, Tasmania (Australia) and arrived in late December in McMurdo, Antarctica. We instrumented the ship before departure. New for this season was a digital camera, which took continuously imagery of the sea ice conditions and an improved IR telethermometer, which measured the sea surface temperature.

The following instrumentation was installed on the port side of the flying bridge or wings of the Polar Sea, with the exception of the sea ice camera, which was installed on the aloft con looking forward. One set of long and short wave instruments were placed on a 25 foot boom that extended 15 feet out from the ships side, on the wing, looking down at the surface.The other set, and UVA and UVB instruments were mounted upward looking from front of flying bridge. The IR camera was mounted on the port wing looking down at the surface. The wind speed instrument was mounted up on a 4-foot vertical pole at the front, port corner of the flying bridge, with the temperature and humidity probe similarly mounted close by. The wind direction was mounted on a poll, horizontally out over the ships side from the same location. The other instruments and datalogger were placed in convenient and accessible and applicable locations on the flying bridge. The two laptop computers were secured in the Meteorology Lab. Data was collected for 5 minutes and averaged. Data from the Polar Sea Staff (MST weather reports, Quartermaster reports and sea temperature) were acquired for further analysis.

Special Equipment Used:

Short wave (2), long wave (2), UVA and UBA radiation instruments.
Pitch and roll, temperature, humidity, pressure, wind speed and direction instruments.
Visual sea ice and cloud cover camera.
GPS.
Data Logger and computers to gather and store data.

Any Logistic Difficulties:

None. Some of the hardware to mount the instruments had been made in past years, and transferred to the Polar Sea from the Polar Star.

Findings of Interest:

The data have yet to be analyzed.

 

Gerd Wendler
gerd@gi.alaska.edu
Date Last Modified: 6/15/01