Masashi Niwano

J-GLOBAL         Last updated: Sep 20, 2018 at 09:54
 
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Name
Masashi Niwano
E-mail
mniwanomri-jma.go.jp
Affiliation
Meteorological Research Institute
Section
Climate Research Department
Job title
Senior Researcher
Degree
Doctor of Science(Nagoya University)
Research funding number
10515026
ORCID ID
0000-0003-3121-3802

Profile

Dr. Niwano started his professional carrer as a snow scientist under the guide by his mentor Prof. Teruo Aoki (Former head of the 6th Research Laboratory, Climate Research Department, Meteorological Research Institute, Japan Meteorological Agency) in 2008. Dr. Niwano’s current main research interest is to understand the snow-atmosphere interaction in the cryosphere. For this purpose, he performs in-situ measurements at seasonal snowy area in Japan (e.g., Sapporo, Hokkaido) and the Greenland Ice Sheet (GrIS), as well as numerical modeling with the Snow Metamorphism and Albedo Process (SMAP) model (Niwano et al., 2012, JGR) developed by him and his colleagues (the SMAP model is the main outcome of his Doctor Thesis). Recently, he is interested in the GrIS climate system, and has stayed on the ice sheet for total 54 days since 2012 to conduct field measurements on atmosphere/snow/ice physical conditions (e.g., Niwano et al., 2015, TC). In 2018, he succeeded in coupling the SMAP model with the Japanese Meteorological Agency’s operational regional non-hydrostatic atmospheric model JMA-NHM, and constructed the regional climate model NHM-SMAP (Niwano et al., 2018, TC). NHM-SMAP has been applied to the Greenland ice sheet, and long term climate simulations by the model have been performed by utilizing the supercomputer of Meteorological Research Institute, Japan Meteorological Agency (FUJITSU PRIMEHPC FX100 and PRIMERGY CX2550M1). Now, he is well versed in climate modeling in the cryosphere. In the spring of 2018, Dr. Niwano, together with two Japanese colleagues, carried out a scientific traverse in the northwestern GrIS to perform in-situ snow/ice physical measurements at different climate conditions and altitudes. In the expedition, he challenged to use a traditional Greenlandic-style dog sledge, which imposes very low burden on the environment compared to helicopters and snowmobiles often used in the GrIS. Finally, the epoch-making challenge succeeded, and he and his colleagues are now analyzing the obtained data.

Research Areas

 
 

Academic & Professional Experience

 
Apr 2018
 - 
Today
Senior Researcher, Climate Research Department, Meteorological Research Institute
 
Apr 2013
 - 
Mar 2018
Researcher, Climate Research Department, Meteorological Research Institute
 
Apr 2006
 - 
Mar 2008
Tokyo District Meteorological Observatory
 
Apr 2004
 - 
Mar 2006
Toyama Local Meteorological Observatory
 

Education

 
Apr 2000
 - 
Mar 2004
Meteorological College
 

Awards & Honors

 
Sep 2017
Development of the physical snowpack model SMAP and its applications, Hirata Award, The Japanese Society of Snow and Ice
 
Sep 2015
Excellent Paper Award, The Japanese Society of Snow and Ice
Winner: Masashi Niwano, Teruo Aoki, Yuji Kodama, Satoru Yamaguchi, Hiroki Motoyoshi, and Yukiyoshi Iwata
 

Published Papers

 
Takeuchi, N., R. Sakaki, J. Uetake, N. Nagatsuka, R. Shimada, M. Niwano, T. Aoki
Ann. Glaciol.      Sep 2018   [Refereed]
Onuma, Y., N. Takeuchi, S. Tanaka, N. Nagatsuka, M. Niwano, and T. Aoki
The Cryosphere   12(6) 2147-2158   Jun 2018   [Refereed]
Matoba, S., M. Niwano, T. Tanikawa, Y. Iizuka, T. Yamasaki, Y. Kurosaki, T. Aoki, A. Hashimoto, M. Hosaka, and S. Sugiyama
Bull. Glaciol. Res.   36 15-22   Apr 2018   [Refereed]
Niwano, M., T. Aoki, A. Hashimoto, S. Matoba, S. Yamaguchi, T. Tanikawa, K. Fujita, A. Tsushima, Y. Iizuka, R. Shimada, and M. Hori
The Cryosphere   12(2) 635-655   Feb 2018   [Refereed]
Energy-water budget analysis of an Arctic terrestrial models intercomparison GTMIP
Saito, K., J. Mori, H. Machiya, S. Miyazaki, T. Ise, T. Sueyoshi, T. Yamazaki, Y. Iijima, H. Ikawa, K. Ichii, A. Ito, R. O’oishi, T. Oota, G. Katata, A. Kotani, T. Sasai, A. Sato, H. Sato, A. Sugimoto, R. Suzuki, K. Tanaka, T. Nitta, M. Niwano, E. Burke, H. Park, S. Yamaguchi
Seppyo   80(2) 159-174   Apr 2018   [Refereed]
Zaizen, Y., N. Orikasa, T. Tajiri, T. Aoki, and M. Niwano
Aerosol Kenkyu   33(1) 5-11   Jan 2018   [Refereed]
Application of the physical snowpack model SMAP to Japan Meteorological Agency’s AMeDAS (Automated Meteorological Data Acquisition System) sites in Niigata, Japan during the 2015-2016 winter
Niwano, M., T. Aoki, A. Hashimoto, S. Yamaguchi, T. Tanikawa, and M. Hosaka
Seppyo   79(6) 525-538   Dec 2017   [Refereed]
Tsutaki, S., S. Sugiyama, D. Sakakibara, T. Aoki, and M. Niwano
Ann. Glaciol.   58 181-192   Jul 2017   [Refereed]
Yasunari, T. J., M. Niwasno, Y. Fujiyoshi, A. Shimizu, M. Hayasaki, T. Aoki, A. M. da Silva6, B. N. Holben, S. Matoba, N. Murao, S. Yamagata, and K-M. Kim
SOLA   13 96-101   2017   [Refereed]
Hori, M, K. Sugiura, K. Kobayashi, T. Aoki, T. Tanikawa, K. Kuchiki, M. Niwano, and H. Enomoto
Remote Sensing of Environment   191 402-418   2017   [Refereed]

Research Grants & Projects

 
Evaluation of climate effects of black carbon over the Arctic with an advanced earth system model
Japan Society for the Promotion of Science (JSPS): Grant-in-Aid for Scientific Research (KAKENHI)
Project Year: Apr 2018 - Mar 2022    Investigator(s): Naga Oshima
Establishment of a next-generation Antarctic Ice Sheet surface mass balance estimation method
Japan Society for the Promotion of Science (JSPS): Grant-in-Aid for Scientific Research (KAKENHI)
Project Year: Apr 2018 - Apr 2020
JP16H01772 (SIGMA project)
Japan Society for the Promotion of Science (JSPS): Grants-in-Aid for Scientific Research (KAKENHI)
Project Year: Apr 2016 - Mar 2020    Investigator(s): Teruo Aoki
JP15H01733 (SACURA project)
Japan Society for the Promotion of Science (JSPS): Grants-in-Aid for Scientific Research (KAKENHI)
Project Year: Apr 2015 - Mar 2020    Investigator(s): Satoru Yamaguchi
Investigation of surface mass loss mechanism in the Greenland ice sheet through development of a next generation polar regional climate model and multi-point in-situ measurements (JP17K12817)
Japan Society for the Promotion of Science (JSPS): Grants-in-Aid for Scientific Research (KAKENHI)
Project Year: Apr 2017 - Mar 2019    Investigator(s): Masashi Niwano

Conference Activities & Talks

 
Transition of falling snow characteristics causing weak layer formation simulated by a numerical weather model, in avalanche disaster events on March 27
Hashimoto, A., H. Motoyoshi, K. Nakamura, S. Yamaguchi, K. Kawashima, M. Niwano, and S. Nakai
EGU General Assembly 2018   8 Apr 2018   
Local air circulations around Bowdoin Glacier simulated by a non-hydrostatic regional weather model
Hashimoto, A., D. Sakakibara, S. Sugiyama, M. Niwano, and T. Aoki
International Symposium on Cryosphere and Biosphere   14 Mar 2018   
Modelling development and decay of cryoconite hole on Qaanaaq Ice Cap in the northwestern Greenland
Fujita, K., N. Takeuchi, M. Niwano, T. Aoki
International Symposium on Cryosphere and Biosphere   14 Mar 2018   
Evaluation of the Greenland Ice Sheet surface mass balance estimated by the NHM-SMAP regional climate model
Niwano, M., T. Aoki, A. Hashimoto, S. Matoba, S. Yamaguchi, T. Tanikawa, K. Fujita, A. Tsushima, Y. Iizuka, R. Shimada, and M. Hori
Fifth International Symposium on the Arctic Research (ISAR-5)   16 Jan 2018   
Positive feedback effect of NIR albedo reduction on surface melting observed at SIGMA-A on Greenland ice sheet
Aoki, T., M. Niwano, T. Tanikawa, S. Matoba, S. Yamaguchi, T. Yamasaki, K. Fujita, Y. Iizuka, H. Motoyama
Fifth International Symposium on the Arctic Research (ISAR-5)   16 Jan 2018   
Floods of a proglacial stream in Qaanaaq, northwestern Greenland
Sakakibara, D., M. Niwano, S. Fukumoto, and S. Sugiyama
Fifth International Symposium on the Arctic Research (ISAR-5)   16 Jan 2018   
Long-term trends of snow cover extent and duration in the Northern Hemisphere derived from imagery collected by polar orbiting optical satellites
Hori, M., K. Sugiura, K. Kobayashi, T. Aoki, T. Tanikawa, M. Niwano, and H. Enomoto
Fifth International Symposium on the Arctic Research (ISAR-5)   16 Jan 2018   
Spectral albedo of sea ice at Qaanaaq fjord in northwest Greenland
Tanikawa, T., T. Aoki, M. Niwano, M. Hosaka, and M. Hori
Fifth International Symposium on the Arctic Research (ISAR-5)   16 Jan 2018   
A long-term Northern Hemisphere snow cover extent product (JASMES) deriving from satellite-borne optical sensors using consistent objective criteria
Hori, M., K. Sugiura, K. Kobayashi, T. Aoki, T. Tanikawa, M. Niwano, and H. Enomoto
AGU Fall Meeting   11 Dec 2017   
Inter-comparison of a regional climate model-simulated surface optically equivalent snow grain size in the Greenland ice sheet with satellite-derived data
Niwano, M., T. Aoki, A. Hashimoto, T. Tanikawa, R. Shimada, and M. Hori
Workshop on Modeling Meltwater in Snow and Firn: Processes, Validation, Intercomparison and Model Uses of Optical Remotely Sensed Data   20 Sep 2017   

Works

 
Masashi Niwano   Web Service   

Others

 
Field observations
・2017: Northwestern Greenland ice sheet (meteorological, radiation, and snow measurements), 16 days on the ice sheet

・2017: Nakasatsunai, Hokkaido, Japan (meteorological, radiation, and snow measurements)

・2016: Nakasatsunai, Hokkaido, Japan (meteorological, radiation, and snow measurements)

・2015: Qaanaaq ice cap in the northwestern Greenland (meteorological, radiation, and snow measurements)

・2015: Nakasatsunai, Hokkaido, Japan (meteorological, radiation, and snow measurements)

・2014: Northwestern Greenland ice sheet (meteorological, radiation, and snow measurements), 10 days on the ice sheet

・2014: Nakasatsunai, Hokkaido, Japan (meteorological, radiation, and snow measurements)

・2013: Northwestern Greenland ice sheet (meteorological, radiation, and snow measurements), 7 days on the ice sheet

・2013: Kitami, Hokkaido, Japan (meteorological, radiation, and snow measurements)

・2012: Northwestern Greenland ice sheet (meteorological, radiation, and snow measurements), 21 days on the ice sheet

・2011: Nakasatsunai, Hokkaido, Japan (meteorological, radiation, and snow measurements)

・2010: Kitami, Hokkaido, Japan (meteorological, radiation, and snow measur