Variability of the Air Temperature Field in the Arctic

• Main Authors: Ryozaburo Yamamoto, Tatsuya Iwashima
• Format: Report
• Language: English
• Published: Laboratory for Climatic Change Research, Kyoto University 1981
• Subjects: Arctic; Arctic Ocean; Memoirs of National Institute of Polar Research; Polar Research
• Online Access: https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=1171; http://id.nii.ac.jp/1291/00001171/; https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=1171&item_no=1&attribute_id=18&file_no=1

The arctic temperature field can be presumed to be one of the most sensitive indicators of climatic changes. In the present work an optimum interpolation technique is applied to the data network in the circumference of the Arctic Ocean and the surface air temperature field in the Arctic is analyzed. The results are compared with the analysis by WALSH (Mon. Weather Rev., 105,1527,1977) who utilized the drifting ice station data. Both analyses agree fairly well, although some underestimations by the present work are noticed. Some preliminary examinations also are made to see whether the time change of the arctic temperature field would definitely be related to increase of the atmospheric CO_2 or to changes of other climate-controlling factors.