Application of Wind Data in Flood Rainstorm Forecasting in the Mountain Area of Western Henan
Abstract：Based on NCEP （1°×1°） reanalysis wind date, Doppler radar VWP and velocity prod- ucts, and L band radar wind data, two flood rainstorm occurred in July 29, 2007 and July 23, 2010 in the mountainous area of western Henan are analyzed. The results show at the second stage of two process, wind vertical distribution has the feature of strong southwest or south wind convergence in low-level and divergence in high level; the southwest airflow is deep stability in VWP products that make for the storm＇ s lasting; the changes of adverse wind area of radial velocity products have significance on rain- storm area and intensity. L band radar wind data can compensate flaw that brought by mountain block for the Doppler radar precipitation observation of Lushi. A variety of wind data can complement each other in flood rainstorm forecast in the mountain area of western Henan.
Keywords：flood rainstormhorizontal windVWPradial velocityL band radar wind
Publication Date：2012-01-01
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：7( 67-73 )