Meteorological features observed in Yukidori Zawa, Langhovde and Kizahashi Hama, Skarvsnes on the Soya Coast, East Antarctica, with comparison of those observed at Syowa Station

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  • ラングホブデ雪鳥沢・スカルブスネスきざはし浜の生物活動域での気象要素の特徴について
  • ラングホブデ セツドリ サワ ・ スカルブスネスキザ ハシ ハマ ノ セイブツ カツドウイキ デ ノ キショウ ヨウソ ノ トクチョウ ニ ツイテ

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Description

Observations of weather parameters at two ice-free areas (Yukidori Zawa in Langhovde and Kizahashi Hama in Skarvsnes) on the Soya Coast, East Antarctica, had been conducted since 2010 using automatic weather stations (AWSs). By comparing the data obtained from two AWSs with those at Syowa Station (Ongul Islands), we observed a degree of variability in seasonal and annual air temperature and solar radiation. However, throughout the year, both ice-free areas experienced approximately 1-2℃ higher temperatures and 50% lower wind speeds compared with Syowa Station. Relative humidity and solar radiation (which may be influenced by topographic shading) recorded by both AWS, were ～10% lower than those recorded at Syowa Station. In addition, the numbers of days above 0℃ at both sites was nearly twice that at Syowa Station; we recorded ～200 W/m2 of solar radiation and wind speeds of 3-4 m/s. These differences in weather parameters between the Ongul Islands and ice-free areas on the southern Soya Coast potentially affect the activities of terrestrial biota, and might account for the significant differences in vegetation between the two areas.

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  • 南極資料

    南極資料 59 (2), 163-178, 2015-07-31

    情報・システム研究機構 国立極地研究所

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