日本地球惑星科学連合2018年大会

講演情報

[EE] ポスター発表

セッション記号 A (大気水圏科学) » A-CG 大気水圏科学複合領域・一般

[A-CG36] 衛星による地球環境観測

2018年5月24日(木) 10:45 〜 12:15 ポスター会場 (幕張メッセ国際展示場 7ホール)

コンビーナ:沖 理子(宇宙航空研究開発機構)、本多 嘉明(千葉大学環境リモートセンシング研究センター)、高薮 縁(東京大学 大気海洋研究所、共同)、松永 恒雄(国立環境研究所地球環境研究センター/衛星観測センター)、Allen HL Huang (University of Wisconsin Madison)

[ACG36-P28] モンゴル・シベリア域の夏季降水量のGPM/DPR地上降水検証

*飯島 慈裕1会田 健太郎2浅沼 順2岩崎 博之3小谷 亜由美4太田 岳史4 (1.三重大学生物資源学研究科、2.筑波大学、3.群馬大学、4.名古屋大学)

キーワード:降水、GPM 衛星、Clutter Free Bottom

North eastern Eurasia PMM Terrestrial UNited validation Experiment (NEPTUNE project) aims for comprehensive validation of precipitation (rain) in summer, precipitation (snow fall) in winter and their spatial distribution based on ground truth data obtained by our observation network which has been improved in Northeast Eurasia. We could get certain numbers of synchronised events between GPM/DPR and surface observation in 3 summers (2014-2016) at 2 gauge sites in Siberia, 10 gauge sites and 1 radar region near Ulaanbaatar in Mongolia, respectively.

The GPM/DPR, KuPR and KaPR ES data showed good correspondence with rain records of surface observation. For gauge station, most of rain events correspond to each other within a few hours. Rain events in Mongolia were detected as stratiform with higher clutter free bottom with more than 1000m above surface. In case of rain in mountainous region observed by precipitation radar in Ulaanbaatar, GPM failed to detect the precipitated region likely due to higher topography. Extended convective rain events could be observed in Yakutsk in July 2016. The event showed lower clutter free bottom (530m above surface) with higher storm top height (9200m) thick intensive rain layer (530m to 3375m with 15mm/hour of rainfall intensity), which was never found in case of Mongolia.