AN ANALYSIS OF OPERATIONAL 300-MB TRANSOSONDE FLIGHTS FROM JAPAN IN 1957–58
AN ANALYSIS OF OPERATIONAL 300-MB TRANSOSONDE FLIGHTS FROM JAPAN IN 1957–58
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DOI：
10.1175/1520-0469(1960)017
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发表时间：
1960-02
影响因子：
3.1
通讯作者：
J. Angell
中科院分区：
文献类型：
--
作者：
J. Angell
摘要 本文总结了 1957-58 年期间美国海军从日本岩国进行的 300 mb 恒定高度气球或转探空仪飞行。平均而言，冬季探空仪在释放后 3 天、春季和秋季释放后 4 天到达美国西海岸。与春季或秋季相比，冬季的轨迹穿过美国北部更远的地方。对于这些飞行，自转探空仪释放以来，位置的纬向标准偏差随时间近似线性增加，而位置的经向标准偏差在转探空仪升空3天后实际上保持恒定。 300 mb 处的平均跨声探空风速为 71 kn，而平均跨等高线流为 7.5 kn，风速与地转风速之间的平均偏差为 12.4 kn。来自跨声探空仪的纬向和经向地转风表明，在 300 mb 处，向北输送动量的 6% 或 7%...
Abstract This paper summarizes the operational 300-mb constant-level balloon or transosonde flights made by the United States Navy from Iwakuni, Japan during 1957–58. On the average, the transosondes reached the west coast of the United States 3 days after release in winter and 4 days after release in spring and fall. The trajectories traversed the United States farther to the north in winter than in spring or fall. For these flights, the zonal standard deviation of position increased approximately linearly with time since transosonde release, whereas the meridional standard deviation of position remained practically constant after the transosondes had been aloft 3 days. The mean transosonde-derived wind speed, at 300 mb was 71 kn while the mean cross-contour flow was 7.5 kn and the mean deviation between wind and geostrophic wind speed was 12.4 kn. Zonal and meridional ageostrophic winds derived from the transosondes suggest that, at 300 mb, six or seven per cent of the northward transport of momentum at...