Diurnal and Seasonal Variations of Carbon Dioxide (CO2) Concentration in Urban, Suburban, and Rural Areas around Tokyo

by Ryoichi Imasu, Yuka Tanabe
Published 2018-09-01

Dust Aerosol Detection by the Modified CO₂ Slicing Method

by Yu Someya, Ryoichi Imasu, Kei Shiomi
Published 2019-04-01

Impact of Urban Growth on Air Quality in Indian Cities Using Hierarchical Bayesian Approach

by Prakhar Misra, Ryoichi Imasu, Wataru Takeuchi
Published 2019-09-01

Mapping Brick Kilns to Support Environmental Impact Studies around Delhi Using Sentinel-2

by Prakhar Misra, Ryoichi Imasu, Sachiko Hayashida, Ardhi Adhary Arbain, Ram Avtar, Wataru Takeuchi
Published 2020-09-01

Sub-Daily Natural CO₂ Flux Simulation Based on Satellite Data: Diurnal and Seasonal Pattern Comparisons to Anthropogenic CO₂ Emissions in the Greater Tokyo Ar...

by Qiao Wang, Ryoichi Imasu, Yutaka Arai, Satoshi Ito, Yasuko Mizoguchi, Hiroaki Kondo, Jingfeng Xiao
Published 2021-05-01

Optimization of the Photon Path Length Probability Density Function-Simultaneous (PPDF-S) Method and Evaluation of CO2 Retrieval Performance Under Dense Aerosol Conditions

by Chisa Iwasaki, Ryoichi Imasu, Andrey Bril, Sergey Oshchepkov, Yukio Yoshida, Tatsuya Yokota, Vyacheslav Zakharov, Konstantin Gribanov, Nikita Rokotyan
Published 2019-03-01

Observation of column-averaged molar mixing ratios of carbon dioxide in Tokyo

by Xiu-Chun Qin, Tomoki Nakayama, Yutaka Matsumi, Masahiro Kawasaki, Ryoichi Imasu, Isamu Morino, Yoshihiro Tanaka, Shigeyuki Ishidoya, Kenta Sato, Masafumi Ohashi
Published 2019-04-01

Nitrogen oxides concentration and emission change detection during COVID-19 restrictions in North India

by Prakhar Misra, Masayuki Takigawa, Pradeep Khatri, Surendra K. Dhaka, A. P. Dimri, Kazuyo Yamaji, Mizuo Kajino, Wataru Takeuchi, Ryoichi Imasu, Kaho Nitta, Prabir K. Patra, Sachiko Hayashida
Published 2021-05-01

Correction: Greenhouse gases Observing SATellite 2 (GOSAT-2): mission overview

by Ryoichi Imasu, Tsuneo Matsunaga, Masakatsu Nakajima, Yukio Yoshida, Kei Shiomi, Isamu Morino, Naoko Saitoh, Yosuke Niwa, Yu Someya, Yu Oishi, Makiko Hashimoto, Hibiki Noda, Kouki Hikosaka, Osamu Uchino, Shamil Maksyutov, Hiroshi Takagi, Haruma Ishida, Takashi Y. Nakajima, Teruyuki Nakajima, Chong Shi
Published 2023-07-01

Greenhouse gases Observing SATellite 2 (GOSAT-2): mission overview

by Ryoichi Imasu, Tsuneo Matsunaga, Masakatsu Nakajima, Yukio Yoshida, Kei Shiomi, Isamu Morino, Naoko Saitoh, Yosuke Niwa, Yu Someya, Yu Oishi, Makiko Hashimoto, Hibiki Noda, Kouki Hikosaka, Osamu Uchino, Shamil Maksyutov, Hiroshi Takagi, Haruma Ishida, Takashi Y. Nakajima, Teruyuki Nakajima, Chong Shi
Published 2023-07-01

Very high particulate pollution over northwest India captured by a high-density in situ sensor network

by Tanbir Singh, Yutaka Matsumi, Tomoki Nakayama, Sachiko Hayashida, Prabir K. Patra, Natsuko Yasutomi, Mizuo Kajino, Kazuyo Yamaji, Pradeep Khatri, Masayuki Takigawa, Hikaru Araki, Yuki Kurogi, Makoto Kuji, Kanako Muramatsu, Ryoichi Imasu, Anamika Ananda, Ardhi A. Arbain, Khaiwal Ravindra, Sanjeev Bhardwaj, Sahil Kumar, Sahil Mor, Surendra K. Dhaka, A. P. Dimri, Aka Sharma, Narendra Singh, Manpreet S. Bhatti, Rekha Yadav, Kamal Vatta, Suman Mor
Published 2023-08-01