[A-AS04] Atmospheric Chemistry

4:30 PM - 4:45 PM

[AAS04-14] Analysis of the carbon dioxide in the upper troposphere and lower stratosphere by the data from GOSAT TANSO-FTS TIR

*Nawo Eguchi¹, Akihiro Honda¹, Naoko Saitoh², Yosuke Niwa³ (1.Kyushu University, 2.Chiba University, 3.National Institute for Environmental Studies)

4:45 PM - 5:00 PM

[AAS04-15] Seasonal and interannual variations of the Atmospheric Potential Oxygen over the Western North Pacific observed by using a cargo aircraft C-130H

*Shigeyuki Ishidoya¹, Kazuhiro Tsuboi², Yosuke Niwa³, Shohei Murayama¹, Hidekazu Matsueda², Yousuke Sawa², Nobuyuki Aoki¹, Kentaro Ishijima², Kentaro Kozumi⁴, Genta Umezawa⁴, Kazuya Yukita⁴, Shigeharu Nishida⁴, Megumi Yamamoto⁴ (1.National Institute of Advanced Industrial Science and Technology (AIST), 2.Meteorological Research Institute, 3.National Institute for Environmental Studies, 4.Japan Meteorological Agency)

Thu. May 30, 2019 1:45 PM - 3:15 PM Poster Hall (International Exhibition Hall8, Makuhari Messe)

[J] Poster
| A (Atmospheric and Hydrospheric Sciences )
| A-AS Atmospheric Sciences, Meteorology & Atmospheric Environment

[A-AS04] Atmospheric Chemistry

[AAS04-P28] Global inverse analysis of CH₄ fluxes using NICAM-TM 4D-Var

*Yosuke Niwa^1,2, Akihiko Ito¹, Toshinobu Machida¹, Motoki Sasakawa¹, Yasunori Tohjima¹, Taku Umezawa¹, Shinji Morimoto³, Shuji Aoki³, Yousuke Sawa², Kazuhiro Tsuboi², Hidekazu Matsueda², Ed Dlugokencky⁴, Christina Harth⁵, Paul B Krummel⁶, Ray L Langenfelds⁶, Zoe M Loh⁶, Jens Mühle⁵, Simon O’Doherty⁷, Ronald G Prinn⁸, Michel Ramonet⁹, Peter Salameh⁵, Colm Sweeney⁴, Ray Weiss⁵, Dickon Young⁷, Simona Castaldi^10,11, Sergio Noce¹², Marielle Saunois⁹, Ann R Stavert¹³ (1.National Institute for Environmental Studies, 2.Meteorological Research Institute, 3.Tohoku University, 4.Earth System Research Laboratory, National Oceanic and Atmospheric Administration, 5.Scripps Institution of Oceanography, University of California, 6.Climate Science Centre, CSIRO Oceans and Atmosphere, 7.School of Chemistry, University of Bristol, 8.Massachusetts Institute of Technology, 9.Laboratoire des Sciences du Climat et de l’Environnement, LSCE-IPSL (CEA-CNRS-UVSQ), 10.DISTABIF, Università degli studi della Campania Luigi Vanvitelli, 11.Department Landscape Design & Sustainable Ecosystems RUDN University, 12.IAFES, Euro-Mediterranean Center on Climate Change, 13.Global Carbon Project, CSIRO Oceans and Atmosphere)

[AAS04-P30] Continuous measurements of atmospheric CO₂ and its δ¹³C and δ¹⁸O at Minamitorishima Island

*Shohei Murayama¹, Kazuhiro Tsuboi², Shigeyuki Ishidoya¹, Hidekazu Matsueda², Yosuke Niwa³, Yousuke Sawa², Kentaro Ishijima², Kentaro Kozumi⁴, Genta Umezawa⁴, Kazuya Yukita⁴, Shigeharu Nishida⁴, Megumi Yamamoto⁴, Tetsuyuki Usami¹, Shinji Morimoto⁵ (1.National Institute of Advanced Industrial Science and Technology (AIST), 2.Meteorological Research Institute, 3.National Institute for Environmental Studies, 4.Japan Meteorological Agency, 5.Tohoku University)

[AAS04-P31] Variations of atmospheric Radon-222 concentration observed at JMA stations

*Kentaro Ishijima¹, Kazuhiro Tsuboi¹, Hidekazu Matsueda¹, Yousuke Sawa¹, Yosuke Niwa^2,1, Takashi Maki¹, Takashi Nakamura³ (1.Meteorological Research Institute, 2.National Institute for Environmental Studies, 3.Japan Meteorological Agency)

Thu. May 30, 2019 5:15 PM - 6:30 PM Poster Hall (International Exhibition Hall8, Makuhari Messe)

[J] Poster
| A (Atmospheric and Hydrospheric Sciences )
| A-AS Atmospheric Sciences, Meteorology & Atmospheric Environment

[A-AS04] Atmospheric Chemistry

[AAS04-P28] Global inverse analysis of CH₄ fluxes using NICAM-TM 4D-Var

*Yosuke Niwa^1,2, Akihiko Ito¹, Toshinobu Machida¹, Motoki Sasakawa¹, Yasunori Tohjima¹, Taku Umezawa¹, Shinji Morimoto³, Shuji Aoki³, Yousuke Sawa², Kazuhiro Tsuboi², Hidekazu Matsueda², Ed Dlugokencky⁴, Christina Harth⁵, Paul B Krummel⁶, Ray L Langenfelds⁶, Zoe M Loh⁶, Jens Mühle⁵, Simon O’Doherty⁷, Ronald G Prinn⁸, Michel Ramonet⁹, Peter Salameh⁵, Colm Sweeney⁴, Ray Weiss⁵, Dickon Young⁷, Simona Castaldi^10,11, Sergio Noce¹², Marielle Saunois⁹, Ann R Stavert¹³ (1.National Institute for Environmental Studies, 2.Meteorological Research Institute, 3.Tohoku University, 4.Earth System Research Laboratory, National Oceanic and Atmospheric Administration, 5.Scripps Institution of Oceanography, University of California, 6.Climate Science Centre, CSIRO Oceans and Atmosphere, 7.School of Chemistry, University of Bristol, 8.Massachusetts Institute of Technology, 9.Laboratoire des Sciences du Climat et de l’Environnement, LSCE-IPSL (CEA-CNRS-UVSQ), 10.DISTABIF, Università degli studi della Campania Luigi Vanvitelli, 11.Department Landscape Design & Sustainable Ecosystems RUDN University, 12.IAFES, Euro-Mediterranean Center on Climate Change, 13.Global Carbon Project, CSIRO Oceans and Atmosphere)

[AAS04-P30] Continuous measurements of atmospheric CO₂ and its δ¹³C and δ¹⁸O at Minamitorishima Island

*Shohei Murayama¹, Kazuhiro Tsuboi², Shigeyuki Ishidoya¹, Hidekazu Matsueda², Yosuke Niwa³, Yousuke Sawa², Kentaro Ishijima², Kentaro Kozumi⁴, Genta Umezawa⁴, Kazuya Yukita⁴, Shigeharu Nishida⁴, Megumi Yamamoto⁴, Tetsuyuki Usami¹, Shinji Morimoto⁵ (1.National Institute of Advanced Industrial Science and Technology (AIST), 2.Meteorological Research Institute, 3.National Institute for Environmental Studies, 4.Japan Meteorological Agency, 5.Tohoku University)

[AAS04-P31] Variations of atmospheric Radon-222 concentration observed at JMA stations

*Kentaro Ishijima¹, Kazuhiro Tsuboi¹, Hidekazu Matsueda¹, Yousuke Sawa¹, Yosuke Niwa^2,1, Takashi Maki¹, Takashi Nakamura³ (1.Meteorological Research Institute, 2.National Institute for Environmental Studies, 3.Japan Meteorological Agency)

Tue. May 28, 2019 1:45 PM - 3:15 PM 301A (3F)

[E] Oral
| A (Atmospheric and Hydrospheric Sciences )
| A-CG Complex & General

[A-CG32] Global Carbon Cycle Observation and Analysis

2:30 PM - 2:45 PM

[ACG32-04] Carbon flux estimation using NICAM-TM 4D-Var and GOSAT data towards GOSAT-2 Level 4 product

*Tazu Saeki¹, Yosuke Niwa¹, Makoto Saito¹ (1.National Institute for Environmental Studies)

Wed. May 29, 2019 10:45 AM - 12:15 PM Poster Hall (International Exhibition Hall8, Makuhari Messe)

[E] Poster
| M (Multidisciplinary and Interdisciplinary)
| M-GI General Geosciences, Information Geosciences & Simulations

[M-GI30] Data assimilation: A fundamental approach in geosciences

[MGI30-P03] Accurate estimation of posterior error covariance in a 4D-Var inverse analysis

*Yosuke Niwa^1,2, Yosuke Fujii^2,3 (1.National Institute for Environmental Studies, 2.Meteorological Research Institute, Japan Meteorological Agency, 3.The Institute of Statistical Mathematics)

[MGI30-P04] Assimilation CO₂ concentration data in the Kanto region using AIST-MM model and for the estimation of CO₂ emissions

*Yutaka Arai¹, Ryoichi Imasu¹, Hiroaki Kondo², Yosuke Niwa³ (1.Atmosphere and Ocean Research Institute, The University of Tokyo, 2.National Institute of Advanced Industrial Science and Technology, 3.National Institute for Environmental Studies, Independent Administrative Institutions)

Wed. May 29, 2019 5:15 PM - 6:30 PM Poster Hall (International Exhibition Hall8, Makuhari Messe)

[E] Poster
| M (Multidisciplinary and Interdisciplinary)
| M-GI General Geosciences, Information Geosciences & Simulations

[M-GI30] Data assimilation: A fundamental approach in geosciences

[MGI30-P03] Accurate estimation of posterior error covariance in a 4D-Var inverse analysis

*Yosuke Niwa^1,2, Yosuke Fujii^2,3 (1.National Institute for Environmental Studies, 2.Meteorological Research Institute, Japan Meteorological Agency, 3.The Institute of Statistical Mathematics)

[MGI30-P04] Assimilation CO₂ concentration data in the Kanto region using AIST-MM model and for the estimation of CO₂ emissions

*Yutaka Arai¹, Ryoichi Imasu¹, Hiroaki Kondo², Yosuke Niwa³ (1.Atmosphere and Ocean Research Institute, The University of Tokyo, 2.National Institute of Advanced Industrial Science and Technology, 3.National Institute for Environmental Studies, Independent Administrative Institutions)

Yosuke Niwa

Speaker, Author, Co-Author