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首页> 外文期刊>SOLA: Scientific Online Letters on the Atmosphere >Mean Features of Tropical Cyclone Precipitation from TRMM/3B42
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Mean Features of Tropical Cyclone Precipitation from TRMM/3B42

机译：TRMM / 3B42号热带气旋降水的平均特征

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References(13) Cited-By(4) Supplementary materials(1) The mean features of precipitation distribution associated with tropical cyclones are evaluated as anomalies from environmental precipitation fields, in six tropical cyclone active basins, using satellite-derived daily precipitation observation. A common feature in all basins is that concentric positive precipitation anomalies extend within a 5-degree radius from the tropical cyclone center with maximum values of 70 to 100 mm day-1. These distributions are well approximated by a Gaussian curve with an e-folding radius of 2.2 to 2.8 degrees. Positive precipitation anomalies are surrounded by negative anomalies in all basins, indicating suppression of precipitation due to the tropical cyclones themselves at a large distance from the center. The negative anomalies have minimum values of -2 to -3 mm day-1 and are distributed mainly on the equatorial side of the center. Precipitation excess frequency around the tropical cyclones is also evaluated. The western North Pacific has maximum values of excess frequencies in all basins, in which the frequency for 100 mm day-1 is 26 days yr-1 and that for 200 mm day-1 is 1.8 days yr-1 within a 1-degree radius from the center. We assume that tropical cyclones in the western North Pacific have the greatest precipitation intensity.
机译：参考文献（13）被引用的文献（4）补充资料（1）使用来自卫星的每日降水观测资料，对六个热带气旋活动盆地中与热带气旋相关的降水分布的平均特征进行了评估，作为来自环境降水场的异常。所有盆地的一个共同特征是，同心正降水距平从热带气旋中心延伸到5度半径内，第一天的最大值为70至100 mm。这些分布可以通过e折叠半径为2.2至2.8度的高斯曲线很好地近似。在所有盆地中，正降水异常被负异常包围，这表明由于热带气旋本身距中心很远，因此抑制了降水。负异常在第1天的最小值为-2到-3 mm，并且主要分布在中心的赤道侧。还评估了热带气旋周围的降水过量频率。北太平洋西部在所有盆地中都有过剩频率的最大值，其中在1度半径内，第1天100毫米的频率为yr-1年的26天，第1天200 mm的频率为yr-1的年1.8天。从中心。我们假设北太平洋西部的热带气旋具有最大的降水强度。

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