Kdp-R関係式の適用範囲拡張によるXバンドMPレーダの観測精度の向上

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タイトル別名
  • Improvement of the observation accuracy of X-band dual polarimetric radar by expansion of the condition to use KDP-R relationship
  • Kdp-R カンケイシキ ノ テキヨウ ハンイ カクチョウ ニ ヨル Xバンド MP レーダ ノ カンソク セイド ノ コウジョウ

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抄録

The Ministry of Land, Infrastructure, Transport and Tourism (MLIT) built the rainfall observation network composed of 35 X-band dual polarimetric radars called XRAIN. The purpose of this paper is to improve observation accuracy of the radars rainfall of XRAIN. The method of radar rainfall estimation of XRAIN uses Z-R and Kdp-R relationships. The results of sensitive analysis about the thresholds of condition to use Kdp-R relationship expanded the use condition of Kdp-R relationship. The expansion of the use conditions of Kdp-R relationship, the frequency of use of Kdp-R relationship is increased, observation accuracy of radar rainfall is improved.

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