Abstract
In this paper, an objective technique for estimating the tropical cyclone (TC) precipitation from station observations is proposed. Based on a comparison between the Original Objective Method (OOM) and the Expert Subjective Method (ESM), the Objective Synoptic Analysis Technique (OSAT) for partitioning TC precipitation was developed by analyzing the western North Pacific (WNP) TC historical track and the daily precipitation datasets. Being an objective way of the ESM, OSAT overcomes the main problems in OOM, by changing two fixed parameters in OOM, the thresholds for the distance of the absolute TC precipitation (D 0) and the TC size (D 1), into variable parameters.
Case verification for OSAT was also carried out by applying CMORPH (Climate Prediction Center MORPHing technique) daily precipitation measurements, which is NOAA’s combined satellite precipitation measurement system. This indicates that OSAT is capable of distinguishing simultaneous TC precipitation rain-belts from those associated with different TCs or with middle-latitude weather systems.
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Ren, F., Wang, Y., Wang, X. et al. Estimating tropical cyclone precipitation from station observations. Adv. Atmos. Sci. 24, 700–711 (2007). https://doi.org/10.1007/s00376-007-0700-y
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DOI: https://doi.org/10.1007/s00376-007-0700-y