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淮河流域致洪暴雨的异常水汽输送

陆桂华 何健 吴志勇 杨扬 黄嘉佑

水科学进展2013,Vol.24Issue(1):11-17,7.
水科学进展2013,Vol.24Issue(1):11-17,7.

淮河流域致洪暴雨的异常水汽输送

Water vapor transport anomalies of flood-causing rainstorms in Huaihe River basin

陆桂华 1何健 2吴志勇 1杨扬 2黄嘉佑1

作者信息

  • 1. 河海大学水文水资源学院,江苏南京210098
  • 2. 河海大学水问题研究所,江苏南京210098
  • 折叠

摘要

Abstract

A signal-based anomaly detection method with the Box-Cox transformation technique are adopted in an effort to effectively extract anomalous information from multiple data sources, and to improve the identification of water vapor transport anomalies of flood-causing storms ( FCSs). The combined approach is applied to the Huaihe River Basin (HRB) to studying the anomalous characteristics of 850 hPa water vapor flux for the years of 2003, 2005 and 2007. The results show that during FCS periods, the 850 hPa meridional flux of water vapor between longitude 105° E and longitude 125° E is likely to form a dipole pattern with the HRB as its center and the positive anomaly on the south and the negative on the north. The importance of water vapor transport channels varies with FCSs as revealed by the 850 hPa zonal transport anomalies of water vapor at lower latitudes.

关键词

淮河流域/致洪暴雨/水汽输送/信号场/Box-Cox变换

Key words

Huaihe River basin/ flood-causing storm/ water vapor flux/ signal/ Box-Cox transformation

分类

天文与地球科学

引用本文复制引用

陆桂华,何健,吴志勇,杨扬,黄嘉佑..淮河流域致洪暴雨的异常水汽输送[J].水科学进展,2013,24(1):11-17,7.

基金项目

国家重点基础研究发展计划(973计划)资助项目(2010CB428405) (973计划)

全国优秀博士学位论文作者专项资金资助项目(201161) (201161)

水科学进展

OA北大核心CSCDCSTPCD

1001-6791

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