21 0 0 0 OA 佐賀のライダーとスカイラジオメータによって検出された桜島の火山灰の高度分布と光学特性
- 著者
- 酒井 哲 内野 修 森野 勇 永井 智広 赤穂 大河 川崎 健 奥村 浩 新井 康平 内山 明博 山崎 明宏 松永 恒雄 横田 達也
- 出版者
- 社団法人 日本リモートセンシング学会
- 雑誌
- 日本リモートセンシング学会誌 (ISSN:02897911)
- 巻号頁・発行日
- vol.34, no.3, pp.197-204, 2014-07-04 (Released:2015-01-27)
- 参考文献数
- 15
- 被引用文献数
- 2
Volcanic ash particles originating from the eruptions of Mt. Sakurajima (31.59°N, 130.66°E) were observed with Mie lidar at an altitude of 1.6-2.3 km over Saga (33.24°N, 130.29°E) on 21 and 22 August, 2013. The lidar data showed a high depolarization ratio (10-15 %) and a moderately low backscatter wavelength exponent (0.6-0.7), indicating the presence of supermicrometer-sized nonspherical particles. The aerosol optical thicknesses at 500 nm derived from the skyradiometer were 0.12 on 21 August (13 : 50 LT) and 0.40 on 22 August (12 : 50 LT). The Ångström exponent was 0.16-0.49 and the single scattering albedo was 0.73-0.91, indicating the predominance of supermicrometer-sized and moderately absorbing particles.
1 0 0 0 OA GOSATシリーズのプロダクト検証について
- 著者
- 森野 勇 内野 修
- 出版者
- 一般社団法人 日本リモートセンシング学会
- 雑誌
- 日本リモートセンシング学会誌 (ISSN:02897911)
- 巻号頁・発行日
- vol.39, no.1, pp.37-42, 2019-02-28 (Released:2019-08-01)
- 参考文献数
- 40
GOSAT product validation activities and future issues are described in this article. An overview of the GOSAT-2 validation plan is also given. The present main ideas of acquiring validation data for the GOSAT-2 are the same as those for the GOSAT. The TANSO-FTS-2 SWIR L2 products of the column-averaged dry-air mole fractions of CO2, CH4, CO, H2O were obtained as follows. Ground-based high-resolution Fourier transform spectrometer data of the TCCON (Total Carbon Column Observing Network) and NDACC IRWG (Network for the Detection of Atmospheric Composition Change-InfraRed Working Group) sites will be used, and some sites will be co-located with lidar and sky-radiometer systems for extensive validation data acquisition. In-situ measurements and/or sampling of CO2, CH4, and CO onboard commercial and charter aircraft by CONTRAIL (Comprehensive Observation Network for TRace gases by AIrLiner) and NOAA (National Oceanic and Atmospheric Administration) will also be employed. The National Institute for Environmental Studies (NIES) validation team, organizations responsibly participating in the GOSAT series project, and research teams selected through Research Announcement will conduct the validation of the products.
