Four undergraduate students (Nishimura, Shibasaki, Taguchi and Yamanuki) graduated from Department of Urban Environment System, Chiba University. Ms. Yamanuki received best thesis presentation award, congratulations! You can see the nice medal! Two students will leave from my group and two students stay in our group.
We published one paper on decadal terrestrial CO2 budget analysis in SE Asia with Masayuki Kondo (Assistant Prof. in this group) as the first and corresponding author and K. Ichii as second author. I (Ichii) would like to express thanks to Masa and all contributing authors, in particular, Prabir-san, suishinhi-members, and GCP members.
Key messages are:
(1) Including land use change is very important to explain decadal variations in terrestrial CO2 cycles in SE-Asia. We successfully get consistent CO2 budget changes at decadal time-scale among top-down vs bottom-up if we include land use change in the bottom-up model.
(2) Natural climate variations (e.g. El Nino) have huge impact on terrestrial CO2 budget. Decreases in CO2 releases in 2000s were explained by lack of extreme climate event (e.g. El Nino), although amount of land use change emission did not change much.
We also had a good press interview in the Ministry of Education, Culture, Sports, Science and Technology (MEXT), Tokyo on March 20.
JapanFlux will have a meeting in Tsukuba from Feb 20-21, 2018.
K. Ichii will be one of the co-organizer of the meeting.
I was interviewed by FLUXNET community, and the article was posted. Please chec
One co-author paper on top-down vs bottom-up synthesis at Yakutsk, Siberia was published in Environmental Research Letters. This is the first application of our SVR-Asia output data.
Takata K., P. Patra, A. Kotani, J. Mori, B. Dmitry, K. Ichii, T. Saeki, T. Ohta,K. Saito, M. Ueyama, A. Ito, S. Maksyutov, S. Miyazaki, E. Burke, A. Ganshin, Y. Iijima, T. Ise, H. Machiya, T. Maximov, Y. Niwa, R. O'ishi, H. Park, T. Sasai, H. Sato, S. Hisashi, R. Zhuravlev, T. Machida, A. Sugimoto, S. Aoki (2017) Reconciliation of top-down and bottom-up CO2 fluxes in Siberian larch forest. Environmental Research Letters. in press.
A new paper on the application of GOSAT and OCO-2 data was published in Scientific Report. Ichii was participated in the work as a co-author.
Patra, P. K., D. Crisp, J. W. Kaiser, D. Wunch, T. Saeki, K. Ichii, T. Sekiya, P. O. Wennberg, D. G. Feist, D. Pollard, D. W. T. Griffith, V. A. Velazco, M. De Maziere, M. K. Sha, C. Roeh, A. Chatterjee (in press) Orbiting carbon observatory (OCO-2) tracks 2-3 peta-grams increase of carbon release to the atmosphere during the 2014-2016 El Niño. Scientific Reports.Patra, P. K., D. Crisp, J. W. Kaiser, D. Wunch, T. Saeki, K. Ichii, T. Sekiya, P. O. Wennberg, D. G. Feist, D. Pollard, D. W. T. Griffith, V. A. Velazco, M. De Maziere, M. K. Sha, C. Roeh, A. Chatterjee (in press) Orbiting carbon observatory (OCO-2) tracks 2-3 peta-grams increase of carbon release to the atmosphere during the 2014-2016 El Niño. Scientific Reports.
Our group will have two presentations in ICDC-10 (10th International Carbon Dioxide Conference)
Kondo M., K. Ichii, P. Patra, J.G. Canadell, B. Poulter, S. Sitch, L. Calle, T. Saeki (2017) Decadal carbon balance shifts controlled by land use change and ENSO in Southeast Asia, ICDC10, Interlaken, Switzerland. (Oral) (Aug 24, 2017)
Ichii K., M. Ueyama, M. Kondo, N. Saigusa (2017) A new data-driven estimation of terrestrial CO2 fluxes in Asia using a standardized database of eddy covariance measurements, remote sensing data, and support vector regression. ICDC10, Interlaken, Switzerland. (Poster) (Aug 21, 2017)