日本地球惑星科学連合2019年大会

講演情報

[E] ポスター発表

セッション記号 M (領域外・複数領域) » M-TT 計測技術・研究手法

[M-TT46] 統合地球観測システムとしてのGPS/GNSSの新展開

2019年5月27日(月) 17:15 〜 18:30 ポスター会場 (幕張メッセ国際展示場 8ホール)

コンビーナ:小司 禎教(気象研究所気象衛星・観測システム研究部第2研究室)、市川 香(九州大学応用力学研究所)、太田 雄策(東北大学大学院理学研究科附属地震・噴火予知研究観測センター)、津川 卓也(情報通信研究機構)

[MTT46-P08] Refractivity Distributions over the Kanto Plain Obtained by Dual-polarization Radar

*瀬古 弘1佐藤 英一1山内 洋2 (1.気象研究所、2.気象庁)

キーワード:観測手法、ドップラーレーダ、屈折率

Temperature and water vapor near the surface play crucial roles for the generation of convection cells. However, their variations just before the generations of convection cells still are not understood completely. In this study the temporal variations of refractivity index were obtained by MRI dual-polarization Doppler radar. The features of temperature and water vapor including generation period of convection cells will be shown in this presentation. On 19th August 2017, the sea breeze invaded from Kashima-Nada and the refractivity increased along the front of the sea breeze. The scattered weak echoes that appeared around the front seem to be related with the increase of refractivity. These are the features near the surface. The comparison with other data such as GNSS PWV will be also presented.