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利用静止气象卫星监测初生对流的研究进展

覃丹宇 方宗义

气象Issue(1):7-17,11.
气象Issue(1):7-17,11.DOI:10.7519/j.issn.1000-0526.2014.01.002

利用静止气象卫星监测初生对流的研究进展

Research Progress of Geostationary Satellite-Based Convective Initiation

覃丹宇 1方宗义2

作者信息

  • 1. 中国气象局中国遥感卫星辐射测量和定标重点开放实验室,北京 100081
  • 2. 国家卫星气象中心,北京 100081
  • 折叠

摘要

Abstract

A brief review of geostationary satellite-based convective initiation (CI)including the cloud clus-ters (CC)identification,the CC tracking technique,the multi-spectral cloud-top properties of CI,the de-termination of likelihood for CI and some conclusions are presented.Studies indicate that CI may predict the rain storms more early than ground-based radar by choosing carefully the sensitive channels,bands combinations and temporal trends,showing its application potentials for nowcasting forecasts.The know-ing CI algorithms basically involve three parts:target identification,tracking technique and CI likelihood detection.The operational algorithms are similar approaches but something different.For example,the Rapidly Developing Thunderstorms algorithm (RDT)considers the vertical cross-section of cloud systems while the tracking algorithm is mainly built on the overlapping between cells according to their move and speed.The Forecasting and Tracking the Evolution of Cloud Clusters (ForTraCC)technique concerns ac-tive convective systems,presenting the tracking situation including merges and splitting and displaing the ability to forecast the MCS trajectory.The GOES-R CI algorithm aims for the next generation satellite’s sounding and observing,using a series of spectral and temporal thresholds to identify CI.While the Uni-versity of Wisconsin Convective Initiation (UWCI)algorithm utilizes a box-averaged approach to monitor cloud-top cooling rates of CI.This approach is computationally inexpensive and easily provide to engineer-ing.With some new payloads ongoing launch and more powerful detection abilities,more and more satel-lite data will be introduced to identify convective cells.Also,computer technique progress will help to solve the complicated problems which may appear in the process of convective tracking,these efforts will improve the accuracy of CI products.

关键词

卫星/对流初生/综述

Key words

geostationary satellite/convective initiation/review

分类

天文与地球科学

引用本文复制引用

覃丹宇,方宗义..利用静止气象卫星监测初生对流的研究进展[J].气象,2014,(1):7-17,11.

基金项目

国家自然科学基金项目(40975023)、国家高技术研究发展计划(2012AA120903)和公益性行业(气象)科研专项(GYHY201106044)共同资助 ()

气象

OA北大核心CSCDCSTPCD

1000-0526

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