Oxygen isotopic composition of winter precipitation in central Japan
Oxygen isotopic composition of winter precipitation in central Japan
复制标题
日本中部冬季降水的氧同位素组成
DOI：
10.1029/2000jd900678
复制
发表时间：
2001
影响因子：
--
通讯作者：
Y. Endo
中科院分区：
文献类型：
--
作者：
Keisuke Suzuki;Y. Endo
1993/1994年和1994/1995年冬季在日本中部十町町观测到冬季降水的氧同位素组成。该地区冬季降水的天气气象条件分为冬季季风、位于日本海的气旋和位于本州（日本主岛）附近太平洋上空的气旋。降水的氧同位素组成与地表气温无关（r = 0.012）。相反，在云顶温度和降水的氧同位素组成之间观察到密切的关系（r = 0.662），并且对于冬季降水下形成的每种天气条件都认识到相互关系（对于冬季季风，r = 0.772；对于位于本州附近的太平洋上空的气旋，r = 0.935）。冬季季风期间形成的冬季降水的氧同位素组成值高于相同温度下本州附近太平洋上空气旋形成的降水的氧同位素组成值。
The oxygen isotopic composition of the winter precipitation was observed in Tohkamachi, central Japan, in 1993/1994 and 1994/1995 winter. Synoptic meteorological conditions of winter precipitation in this area are classified as winter monsoons, cyclones positioned over the Sea of Japan, and cyclones located over the Pacific Ocean near Honshu (main Japanese Island). The oxygen isotopic composition of precipitation does not correlate with surface air temperature (r = 0.012). A close relationship is instead observed between temperature at the cloud top and the oxygen isotopic composition of precipitation (r = 0.662), and the mutual relationships are recognized for each weather condition formed under that winter precipitation (r = 0.772 for winter monsoon, 0.935 for cyclone positioned over the Pacific Ocean near Honshu). Winter precipitation formed during the winter monsoon has a higher value of oxygen isotopic composition than those formed when a cyclone is positioned over the Pacific Ocean near Honshu at the same temperature.