热带暖池上空海洋水滴大小分布的船载观测尝试

IF 2 4区 地球科学 Q3 METEOROLOGY & ATMOSPHERIC SCIENCES
Masaki Katsumata, Biao Geng
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引用次数: 0

摘要

用船载光学分差仪研究了热带暖池海面上的水滴大小分布。采用质量控制程序,包括抑制主要与船相关风有关的影响,以提取可靠的数据。该程序将数据点的数量抑制到总降雨持续时间的2%。所得DSD参数的平均尺寸和截距参数等特征与前人的研究结果基本一致,且在特定雨率下,DSD参数的尺寸较大。根据降水特征对数据进行分类,对比了DSD参数,特别是MJO活动性前沿海海洋的层状降水。将得到的DSDs用于雷达定量降水估计的散射模拟时,该降水也是一个离群值,而公海和近海的对比没有明显区分。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Attempt at Ship-Based Observations of Oceanic Drop Size Distributions Over the Tropical Warm Pool

Attempt at Ship-Based Observations of Oceanic Drop Size Distributions Over the Tropical Warm Pool

Drop size distributions (DSDs) obtained over ocean in the tropical warm pool using a shipboard optical disdrometer are investigated. Quality control procedures, including the suppression of effects primarily related to the ship-relative wind, are applied to extract reliable data. The procedures suppressed the number of data points to 2% of the total rain duration. The characteristics of the obtained DSD parameters such as averaged size and intercept parameter are reasonably consistent with those of previous studies, with the larger size for a specific rain rate. The categorization of the data according to precipitation characteristics contrasts the DSD parameters, especially for the stratiform precipitation over the coastal ocean prior to the MJO active period. This precipitation is also an outlier when the obtained DSDs are applied to the scattering simulation for the radar-based quantitative precipitation estimation, while the contrast between the open ocean and the coastal ocean is not clearly separated.

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来源期刊
Atmospheric Science Letters
Atmospheric Science Letters METEOROLOGY & ATMOSPHERIC SCIENCES-
CiteScore
4.90
自引率
3.30%
发文量
73
审稿时长
>12 weeks
期刊介绍: Atmospheric Science Letters (ASL) is a wholly Open Access electronic journal. Its aim is to provide a fully peer reviewed publication route for new shorter contributions in the field of atmospheric and closely related sciences. Through its ability to publish shorter contributions more rapidly than conventional journals, ASL offers a framework that promotes new understanding and creates scientific debate - providing a platform for discussing scientific issues and techniques. We encourage the presentation of multi-disciplinary work and contributions that utilise ideas and techniques from parallel areas. We particularly welcome contributions that maximise the visualisation capabilities offered by a purely on-line journal. ASL welcomes papers in the fields of: Dynamical meteorology; Ocean-atmosphere systems; Climate change, variability and impacts; New or improved observations from instrumentation; Hydrometeorology; Numerical weather prediction; Data assimilation and ensemble forecasting; Physical processes of the atmosphere; Land surface-atmosphere systems.
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