MICROMETEOROLOGICAL OBSERVATION OVER THE FAST ICE AT ONGUL STRAIT NEAR SYOWA STATION

Micrometeorological conditions were observed over fast ice with overlying thick snow cover and underlying deep sea approximately in the center of Ongul Strait in Lutzow-Holm Bay, Antarctica, from the end of March to the beginning of December in 1990. In response to the annual change of solar radiati...

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Bibliographic Details
Main Authors: ナカガワ キヨタカ, Kiyotaka NAKAGAWA
Format: Report
Language:English
Published: Division of Science, Joetsu University of Education 1994
Subjects:
Syowa Station
Ongul
Antarc*
Antarctica
Polar meteorology and glaciology
polar night
Proceedings of the NIPR Symposium on Polar Meteorology and Glaciology
Online Access:https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=3826
http://id.nii.ac.jp/1291/00003826/
https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=3826&item_no=1&attribute_id=18&file_no=1
Description
Summary:Micrometeorological conditions were observed over fast ice with overlying thick snow cover and underlying deep sea approximately in the center of Ongul Strait in Lutzow-Holm Bay, Antarctica, from the end of March to the beginning of December in 1990. In response to the annual change of solar radiation, the radiation balance had an annual change; the radiation balance was negative for a period including the polar night, and changed to positive after October. Corresponding to the radiation balance, both the sensible heat flux from the air to the snow and the conductive heat flux from the fast ice to the snow changed. Especially, the sensible heat flux changed with the radiation balance like a mirror image. As the prevailing wind velocity increased, the temperature and humidity increased, and the radiative heat loss, the sensible heat flux from the air to the snow, and the conductive heat flow from the fast ice to the snow decreased.

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