Report on atmospheric science observations at Ny-Alesund, Svalbard (Report)

元データ 国立極地研究所

概要

Observations of atmospheric variables at Ny-Ålesund, Svalbard were started in 1991 at the Rabben observation station, in order to increase our understanding of global atmospheric change in the Arctic. The measured atmospheric components are the variations of greenhouse gases, clouds, precipitation and radiation; these are then compared to observations in the Antarctic. Observations of greenhouse gases, such as CO_2 and CH_4,are conducted by air sampling at the site once a week, in cooperation with the Norwegian Polar Institute. Large seasonal variation and north-south difference in the annual mean between Ny-Ålesund and Syowa Station, Antarctica of about 4ppmv are observed for the CO_2 concentration. CH_4 also shows a large seasonal variation and large north-south difference. Surface ozone concentration is measured continuously at the station; clear seasonal variation and some drastic destruction at the polar sunrise have been revealed. Clouds and precipitation are observed with 37 GHz microwave radiometer for the column liquid water content, and 10 GHz vertical pointing radar for the ice water content and precipitation. Monthly variations of clouds and precipitation are obtained, and some seasonal differences in cloud properties are described. Analysis of surface radiation data observed for a long time by the Norwegian Polar Institute has revealed certain characteristics of the radiation budget at Ny-Ålesund.

著者

Yamanouchi Takashi National Institute of Polar Research
Wada Makoto National Institute of Polar Research
Wada Makoto National Institute For Polar Research
Morimoto S National Institute Of Polar Research Organization Of Information And Systems
Aoki Shuhji Center for Atmospheric and Oceanic Studies, Graduate School of Science, Tohoku University
Morimoto Shinji National Institute of Polar Research
AOKI Shuhji National Institute of Polar Research
Yamanouchi Takashi Geosystems Inc.
Yamanouchi Takashi National Institute For Polar Research
Morimoto S National Inst. Polar Res. Tokyo Jpn
Aoki S Center For Atmospheric And Oceanic Studies Graduate School Of Science Tohoku University
清水 明 東大教養
Aoki Shuji Center For Atmospheric And Oceanic Studies Graduate School Of Sci. Tohoku Univ.
Aoki Shuhji Faculty Of Science Tohoku University
Aoki Syuji National Institute Of Polar Research
Mae S National Institute Of Polar Research Research Organization Of Information And Systems
Mae Shinji Department Of Applied Physics Hokkaido University
Wada M National Institute Of Polar Research
Wada M National Inst. Polar Research Tokyo Jpn
Murayama Syohei National Institute For Resources And Environment
Yamanouchi T Graduate Univ. Advanced Studies Tokyo
清水 明 Center For Atmospheric And Oceanic Studies Graduate School Of Science Tohoku University
Mae S Hokkaido Univ. Sapporo
Yamanouchi Takashi National Inst. Of Polar Res. And Dep. Of Polar Sci. The Graduate Univ. For Advanced Studies 10-3 Mid
Morimoto Shinji National Institute For Resources And Environment
Wada Makoto National Inst. Polar Res. Tokyo

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