文章基本信息

标题：An Identification Method of Melting Layer Using the Covariance Wavelet Transform Based on GPM‐DPR Observations
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作者：Junqi Qiao ; Weihua Ai ; Xiong Hu 等
期刊名称：Earth and Space Science
电子版ISSN：2333-5084
出版年度：2022
卷号：9
期号：3
页码：n/a-n/a
DOI：10.1029/2021EA002103
语种：English
出版社：John Wiley & Sons, Ltd.
摘要：Abstract A knowledge of melting layer (ML) is crucial for studying precipitation and hydrometeor. Based on the measurements of dual‐frequency ratio (DFRm) from the dual‐frequency precipitation radar on board the Global Precipitation Measurement satellite, we use the covariance wavelet transform (CWT) method to identify the ML top height (MLTH) through the DFRm profiles. Due to the influence of disturbance, the directly retrieved MLTH could be estimated mistakenly. To improve the reliability of the retrieved MLTH, a quality‐control algorithm based on the CWT method is developed. By comparing the MLTH with the corresponding 0°C isothermal heights, the retrieved MLTH are more reliable than the dual‐frequency precipitation radar (DPR) product, showing great potential in deploying the Global Precipitation Measurement DPR and the CWT method in the identification of the MLTH.