Zobrazeno 1 - 10
of 110
pro vyhledávání: '"Yasunori Tohjima"'
Autor:
Yasunori Tohjima, Yosuke Niwa, Prabir K. Patra, Hitoshi Mukai, Toshinobu Machida, Motoki Sasakawa, Kazuhiro Tsuboi, Kazuyuki Saito, Akihiko Ito
Publikováno v:
Progress in Earth and Planetary Science, Vol 10, Iss 1, Pp 1-14 (2023)
Abstract We developed a near-real-time estimation method for temporal changes in fossil fuel CO2 (FFCO2) emissions from China for 3 months [January, February, March (JFM)] based on atmospheric CO2 and CH4 observations on Hateruma Island (HAT, 24.06°
Externí odkaz:
https://doaj.org/article/924148883c2f431fbcf788304e8ad703
Autor:
Fenjuan Wang, Shamil Maksyutov, Rajesh Janardanan, Aki Tsuruta, Akihiko Ito, Isamu Morino, Yukio Yoshida, Yasunori Tohjima, Johannes W. Kaiser, Xin Lan, Yong Zhang, Ivan Mammarella, Jost V. Lavric, Tsuneo Matsunaga
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-9 (2022)
Abstract The dramatic increase of natural gas use in China, as a substitute for coal, helps to reduce CO2 emissions and air pollution, but the climate mitigation benefit can be offset by methane leakage into the atmosphere. We estimate methane emissi
Externí odkaz:
https://doaj.org/article/6d0b7186d7164a1bb4f1bd562d5bff6f
Autor:
Fenjuan Wang, Shamil Maksyutov, Rajesh Janardanan, Aki Tsuruta, Akihiko Ito, Isamu Morino, Yukio Yoshida, Yasunori Tohjima, Johannes W. Kaiser, Xin Lan, Yong Zhang, Ivan Mammarella, Jost V. Lavric, Tsuneo Matsunaga
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-2 (2023)
Externí odkaz:
https://doaj.org/article/83fdcb3844f744c3b5cabeff082c768a
Autor:
Fenjuan Wang, Shamil Maksyutov, Rajesh Janardanan, Aki Tsuruta, Akihiko Ito, Isamu Morino, Yukio Yoshida, Yasunori Tohjima, Johannes W Kaiser, Greet Janssens-Maenhout, Xin Lan, Ivan Mammarella, Jost V Lavric, Tsuneo Matsunaga
Publikováno v:
Environmental Research Letters, Vol 16, Iss 2, p 024040 (2021)
In Asia, much effort is put into reducing methane (CH _4 ) emissions due to the region’s contribution to the recent rapid global atmospheric CH _4 concentration growth. Accurate quantification of Asia’s CH _4 budgets is critical for conducting gl
Externí odkaz:
https://doaj.org/article/862383420f094f0c9e9f37712cbe0de1
Autor:
Shigeyuki Ishidoya, Hiroshi Uchida, Daisuke Sasano, Naohiro Kosugi, Shoichi Taguchi, Masao Ishii, Shinji Morimoto, Yasunori Tohjima, Shigeto Nishino, Shohei Murayama, Shuji Aoki, Kentaro Ishijima, Ryo Fujita, Daisuke Goto, Takakiyo Nakazawa
Publikováno v:
Tellus: Series B, Chemical and Physical Meteorology, Vol 68, Iss 0, Pp 1-13 (2016)
Simultaneous observations of atmospheric potential oxygen (APO=O2+1.1×CO2) and air–sea O2 flux, derived from dissolved oxygen in surface seawater, were carried out onboard the research vessel MIRAI in the northern North Pacific and the Arctic Ocea
Externí odkaz:
https://doaj.org/article/e7e0f689e9ca43bcac3fd8da493160c9
Autor:
Momoka Yoshizue, Fumikazu Taketani, Kouji Adachi, Yoko Iwamoto, Yasunori Tohjima, Tatsuhiro Mori, Kazuhiko Miura
Publikováno v:
Atmosphere, Vol 11, Iss 11, p 1175 (2020)
Carbonaceous aerosol particles emitted from biomass burning (BB) have a large impact on the global climate. In particular, tarball particles (TBs), which are spherical organic aerosol particles, account for a large proportion of aerosol particles fro
Externí odkaz:
https://doaj.org/article/9ced4cd752e1441893b1126139f441f2
Autor:
Rajesh Janardanan, Shamil Maksyutov, Aki Tsuruta, Fenjuan Wang, Yogesh K. Tiwari, Vinu Valsala, Akihiko Ito, Yukio Yoshida, Johannes W. Kaiser, Greet Janssens-Maenhout, Mikhail Arshinov, Motoki Sasakawa, Yasunori Tohjima, Douglas E. J. Worthy, Edward J. Dlugokencky, Michel Ramonet, Jgor Arduini, Jost V. Lavric, Salvatore Piacentino, Paul B. Krummel, Ray L. Langenfelds, Ivan Mammarella, Tsuneo Matsunaga
Publikováno v:
Remote Sensing, Vol 12, Iss 3, p 375 (2020)
We employed a global high-resolution inverse model to optimize the CH4 emission using Greenhouse gas Observing Satellite (GOSAT) and surface observation data for a period from 2011−2017 for the two main source categories of anthropogenic and natura
Externí odkaz:
https://doaj.org/article/17d594c30a7b435e89b80969aa5a9d55
Autor:
Yasunori Tohjima, Yukio Terao, Hitoshi Mukai, Toshinobu MacHida, Yukihiro Nojiri, Shamil Maksyutov
Publikováno v:
Tellus: Series B, Chemical and Physical Meteorology, Vol 67, Iss 0, Pp 1-15 (2015)
We examined temporal variations in the latitudinal distribution of annual mean atmospheric potential oxygen (APO=O2+1.1×CO2), a useful tracer for studying ocean biogeochemical processes. To compute APO, we used atmospheric CO2 and O2 concentrations
Externí odkaz:
https://doaj.org/article/ef19619f832e418c952940d47a82912d
Autor:
Hideki Nara, Hiroshi Tanimoto, Yasunori Tohjima, Hitoshi Mukai, Yukihiro Nojiri, Toshinobu Machida
Publikováno v:
Tellus: Series B, Chemical and Physical Meteorology, Vol 69, Iss 1 (2017)
We observed prominent CO enhancements with simultaneous enhancements of CO2 and CH4 around the Malay Peninsula in South-East Asia from mid-June to mid-August 2013 based on systematic shipboard observations. We identified 18 episodes of CO enhancement
Externí odkaz:
https://doaj.org/article/762ee8cc1125472b8d4964d4db5ef3b6
Publikováno v:
Atmospheric Measurement Techniques Discussions; 2/19/2024, p1-33, 33p