基于单像素x波段MP雷达数据的蛇线性能(以印尼默拉皮山地区为例)

A. Hairani, A. P. Rahardjo, D. Legono, I. Istiarto
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引用次数: 2

摘要

由于减轻灾害风险的高需求,短期降雨监测技术近年来变得非常重要。这些技术以蛇形线的形式提供暴雨期间降雨强度的重要信息。同时,x波段多参数雷达(XMP Radar)由于其覆盖范围广,在降雨监测中的应用也显著增加。基于XMP雷达和地面降雨监测仪器(即自动降雨记录仪或ARR)开发的蛇线性能评估已应用于印度尼西亚爪哇默拉皮山地区。对2018年11月至12月的降雨数据进行了分析。评估使用了ARR位置的单个雷达数据像素。结果表明,XMP雷达获得的降水数据低于ARR。XMP雷达计算得到的蛇线与ARR数据计算得到的蛇线不同。XMP雷达将预警级别低估了4级中的2级。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Snake Line Performance Applying Single Pixel X-Band MP Radar Data (Case of Mt. Merapi Area, Indonesia)
The short-duration-rainfall monitoring techniques have become important recently due to the high demand for disaster risk miti­gation. Such techniques produce important information on the rainfall intensity during heavy rainfall in the form of snake line. At the same time, use of X-Band Multi-Parameter Radar (XMP Radar) in rainfall monitoring has increased significantly be­cause of its capacity to cover wide area. An assessment on the snake line performance that was developed based on XMP Radar and ground rainfall monitoring instrument (i.e. Automatic Rainfall Recorder or ARR) has been applied to Mt. Merapi area, Java, Indonesia. Selected rainfall data of November-December 2018 were examined. The assessment used a single pixel of radar data at the location of the ARR. The result shows that rainfall data obtained from XMP Radar are lower than those from ARR. The computed snake line obtained from XMP Radar differs from that from ARR data. The XMP Radar underestimates the warning level by about two level out of four.
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