ARAKI Kentaro

Job title	Senior Resercher/The 2nd lab./Department of Typhoon and Severe Weather Research
E-mail
Personal	http://www.mri-jma.go.jp/Dep/typ/araki/
Expertise	Cloud Science, Meteorology
Degree	Ph.D.
Publications	Araki, K., K. Yamashita, S. Satoh, and T. Tajiri, 2025: Characteristics of atmospheric conditions, clouds and precipitation in a winter convective snowfall event over the Kanto Plain in Japan. Bull. Glaciol. Res., in review. Minowa, M., K. Araki, and Y. Takashima, 2024: Development of a compact microwave radiometer for water vapor estimation with machine learning method. SOLA, 20, 339-346. Ichikawa, R., Ohta, Y., Araki, K., Tajiri, T., Fujita, M., Ujihara, H., Yamada, T., Jike, T., Imai, H., Minowa, M., and Takashima, Y., 2024: Novel real-time observation of high-resolution water vapor behavior for detection of precursors of cumulonimbus clouds and investigation of their evolution: - Preliminary results -. EGU General Assembly 2024, Vienna, Austria, 14-19 Apr 2024, EGU24-6211, https://doi.org/10.5194/egusphere-egu24-6211. Araki, K., H. Seko, H. Ishimoto, T. Tajiri, K. Yoshimoto, M. Matsumoto, T. Takeda, Y. Kawano, K. Suzuki, and K. Nakayama, 2023: Development of ground-based microwave radiometer network and monitoring system using 1-dimentional variational technique. CAS/JSC WGNE Research Activities in Earth System Modelling, 53, 1.03-1.04. Seko, H., Y. Ikuta, H. Ishimoto, K. Araki, T. Sakai, K. Yoshimoto, T. Nakamura, and S. Shimizu, 2023: Data assimilation experiments of ground-based microwave radiometer and small UAV by using Meso-NAPEX. CAS/JSC WGNE Research Activities in Earth System Modelling, 53, 1.19-1.20. Yanase, W., K. Araki, A. Wada, U. Shimada, M. Hayashi, T. Horinouchi, 2022: Multiple dynamics of precipitation concentrated on the north side of typhoon Hagibis (2019) during extratropical transition. J. Meteor. Soc. Japan, 100, 783-805. Araki, K., T. Kato, Y. Hirockawa, and W. Mashiko, 2021: Characteristics of atmospheric environments of quasi-stationary convective bands in Kyushu, Japan during the July 2020 heavy rainfall event. SOLA, 17, 8-15. Hirockawa, Y., T. Kato, K. Araki, and W. Mashiko, 2020: Characteristics of extreme rainfall event in Kyushu district, southwestern Japan in early July 2020. SOLA, 16, 265-270. Araki, K., 2020: Numerical simulation of heavy rainfall event associated with typhoon Hagibis (2019) with different horizontal resolutions. CAS/JSC WGNE Research Activities in Earth System Modelling, 50, 3.03-3.04. Araki, K., 2020: Numerical simulation of potential impact of aerosols on heavy rainfall event associated with typhoon Hagibis (2019). CAS/JSC WGNE Research Activities in Earth System Modelling, 50, 4.03-4.04. Araki, K., 2019: Study on heavy snowfall associated with "South-Coast Cyclones": Present state and future work. Meteor. Res. Notes, 241, 605-614. Araki, K., 2019: Predictability of the "South-Coast Cyclones" and associated precipitation. Meteor. Res. Notes, 241, 557-565. Araki, K., 2019: Dense ground snow crystals observation by citizen science. Meteor. Res. Notes, 241, 551-555. Taguchi, H., K. Araki, I. Kamiishi, and Y. Usuta, 2019: Application of a WebGIS visualization system on a heavy snowfall event in the Kanto and Koshin regions. Meteor. Res. Notes, 241, 513-522. Yamashita, K., S. Nakai, M. Ishizaka, H. Motoyoshi, K. Araki, M. Murakami, A. Saito, and T. Tajiri, 2019: Characteristics of the types of precipitation particle in western Tokyo Metropolis and eastern Yamanashi Prefecture during the heavy snowfall in February 2014. Meteor. Res. Notes, 240, 365-382. Araki, K., and M. Murakami, 2019: Characteristics of snowfalls and cloud microphysical properties during heavy snowfall events in the Kanto and Koshin regions associated with "South-Coast Cyclones". Meteor. Res. Notes, 240, 323-338. Araki, K., 2019: Synoptic and mesoscale features of extreme heavy snowfall events in the Kanto and Koshin regions in February 2014. Meteor. Res. Notes, 240, 299-321. Araki, K., 2019: Observational study on heavy snowfall events in the Kanto plain in February 2014 by using dense surface network. Meteor. Res. Notes, 240, 285-298. Kato, T., and K. Araki, 2019: Formation factors of February 2014 heavy snowfall and comparison with previous events. Meteor. Res. Notes, 240, 256-267. Araki, K., 2019: Mesoscale environment including cold-air damming and coastal front on heavy snowfall events in the Kanto plain. Meteor. Res. Notes, 240, 235-255. Araki, K., N. Kitabatake, and T. Kato, 2019: Interaction between synoptic, mesoscale environments and clouds on heavy snowfall events in the Kanto plain associated with "South-Coast Cyclones". Meteor. Res. Notes, 240, 189-199. Araki, K., A. Kuwano-Yoshida, N. Kitabatake, and T. Kato, 2019: Characteristics of "South-Coast Cyclones" causing heavy snowfall and rainfall in the Kanto plain. Meteor. Res. Notes, 240, 174-188. Araki, K., 2019: Synoptic features of snowfall and rainfall events in the Kanto plain associated with "south-coast cyclones". Meteor. Res. Notes, 240, 163-173. Araki, K., 2019: Climatological features of heavy snowfalls in the Kanto and Koshin regions. Meteor. Res. Notes, 239, 83-93. Araki, K., 2019: Northeast snowstorm in the United States. Meteor. Res. Notes, 239, 46-82. Araki, K., 2019: Review on heavy snowfalls brought by "South-Coast Cyclones". Meteor. Res. Notes, 239, 1-45. Araki, K., 2019: Numerical simulation of potential impact of aerosols on heavy snowfall events associated with Japan-sea Polar-airmass Convergence Zone. CAS/JSC WGNE Research Activities in Atmospheric and Oceanic Modelling, 49, 4.03-4.04. Araki, K., 2019: Application of 1DVAR technique using ground-based microwave radiometer data to estimating thermodynamic environments in winter convective clouds. CAS/JSC WGNE Research Activities in Atmospheric and Oceanic Modelling, 49, 1.03-1.04. Ichikawa, R., T. Nagasaki, O. Tajima, H. Takiguchi, K. Araki, and T. Tajiri, 2019: Half-year Comparison of Precipitable Water Vapor Retrieved with Novel Ground-based Microwave Radiometer and GPS Receiver at Tsukuba and Numerical Weather Analysis Data, Proceedings of the 2019 International Technical Meeting of The Institute of Navigation, Reston, Virginia, January 2019, 660-664. Araki, K., and Y. Sato, 2018: Review of numerical simulation studies of aerosol impacts on clouds and precipitation. Earozoru Kenkyu, 33, 152-161, (in Japanese). Araki, K., 2018: High-resolution numerical simulation of wintertime orographic precipitation: representation of snowfall characteristics. CAS/JSC WGNE Research Activities in Atmospheric and Oceanic Modelling, 48, 4.07-4.08. Saito, K., M. Kunii, and K. Araki, 2018: Cloud resolving simulation of a local heavy rainfall event on 26 August 2011 observed in TOMACS. J. Meteor. Soc. Japan, 96A, 175-199. Araki, K., 2018: Ultra-dense ground observation of snow crystals by citizen science "#KantoSnowCrystal project". J. Jpn. Soc. Snow and Ice (Seppyo), 80, 115-129, (in Japanese with English abstract). Araki, K., 2018: Snowfall characteristics of heavy snowfall events associated with cyclones causing surface avalanche in Nasu, Japan. J. Jpn. Soc. Snow and Ice (Seppyo), 80, 131-147, (in Japanese with English abstract). Araki, K., M. Murakami, A. Hashimoto, and T. Tajiri, 2017: Real-time analysis of atmospheric thermodynamic conditions based on 1DVAR method using ground-based microwave radiometer data. CAS/JSC WGNE Research Activities in Atmospheric and Oceanic Modelling, 47, 1.03-1.04. Araki, K., 2017: Effect of cloud microphysics scheme and ice nuclei on forecasts for the September 2015 heavy rainfall event in Kanto and Tohoku regions. CAS/JSC WGNE Research Activities in Atmospheric and Oceanic Modelling, 47, 4.03-4.04. Araki, K., M. Murakami, T. Kato, and T. Tajiri, 2017: Analysis of atmospheric environments for convective cloud development around the Central Mountains in Japan during warm seasons using ground-based microwave radiometer data. Tenki, 64, 19-36, (in Japanese with English abstract). Tajima, O., K. Araki, H. Ishimoto, and T. Nagasaki, 2016: Sensing of the atmospheric water vapor with millimeter wave spectrometer - KUMODeS. IEEE Xplore, doi:10.1109/PIERS.2016.7735564. Araki, K., 2016: "South-Coast Cyclone". Tenki, 63, 707-709. Nagasaki, T., Tajima, O., K. Araki, and H. Ishimoto, 2016: Ground-based atmospheric water vapor monitoring system with spectroscopy of radiations at 20-30 GHz and 50-60 GHz bands. Proceedings, Society of Photo-Optical Instrumentation Engineers (SPIE) 9906, Ground-based and Airborne Telescopes VI, 99063K (July 27, 2016), doi:10.1117/12.2232277. Nagasaki, T., K. Araki, H. Ishimoto, K. Kominami, and O. Tajima, 2016: Monitoring system for atmospheric water vapor with a ground-based multi-band radiometer - meteorological application of radio astronomy technologies. J. Low Temp. Phys., 183, 674-679, doi:10.1007/s10909-015-1412-9. Araki, K., 2016: Influence of cloud microphysics scheme and ice nuclei on forecasting a heavy snowfall event in Japan associated with the "South-Coast Cyclones". CAS/JSC WGNE Research Activities in Atmospheric and Oceanic Modelling, 46, 4.03-4.04. Araki, K., M. Murakami, H. Ishimoto, and T. Tajiri, 2016: The 1-dimentional variational approach to improve thermodynamic profiles in low-level troposphere during rain conditions. CAS/JSC WGNE Research Activities in Atmospheric and Oceanic Modelling, 46, 1.05-1.06. Araki, K., M. Murakami, T. Kato, and T. Tajiri, 2016: Diurnal variation of thermodynamic environments for convective cloud development around the Central Mountains in Japan during warm seasons. CAS/JSC WGNE Research Activities in Atmospheric and Oceanic Modelling, 46, 1.03-1.04. Araki, K., and M. Murakami, 2016: Validation of vertical thermodynamic profiles by cloud base temperature obtained from a ground-based infrared radiometer of a mountain region in Central Japan during warm seasons. CAS/JSC WGNE Research Activities in Atmospheric and Oceanic Modelling, 46, 1.07-1.08. Araki, K., M. Murakami, H. Ishimoto, and T. Tajiri, 2015: Ground-based microwave radiometer variational analysis during no-rain and rain conditions. SOLA, 11, 108-112. Araki, K., W. Mashiko, T. Kato, and N. Nagumo, 2015: Wall cloud associated with a mesocyclone observed in Tsukuba city on 12 August 2015. Tenki, 62, 953-957. Nishi, A., K. Araki, K. Saito, T. Kawabata, and H. Seko, 2015: The consideration and application of the quality control method for the Atmospheric Environmental Regional Obserbation System (AEROS) meteorological observation data. Tenki, 62, 627-639. Araki, K., M. Murakami, H. Ishimoto, and T. Tajiri, 2015: The impact of ground-based microwave radiometer data to estimation of thermodynamic profiles in low-level troposphere. CAS/JSC WGNE Research Activities in Atmospheric and Oceanic Modelling, 45, 1.03-1.04. Araki, K., M. Murakami, H. Ishimoto, and T. Tajiri, 2015: Application of 1DVAR technique using ground-based microwave radiometer data to estimation of temporally high-resolution thermodynamic environments in a tornadic supercell event. CAS/JSC WGNE Research Activities in Atmospheric and Oceanic Modelling, 45, 1.05-1.06. Araki, K., H. Seko, T. Kawabata, K. Saito, 2015: The impact of 3-dimensional data assimilation using dense surface observations on a local heavy rainfall event. CAS/JSC WGNE Research Activities in Atmospheric and Oceanic Modelling, 45, 1.07-1.08. Araki, K., and M. Murakami, 2015: Numerical simulation of heavy snowfall and the potential role of ice nuclei in cloud formation and precipitation development. CAS/JSC WGNE Research Activities in Atmospheric and Oceanic Modelling, 45, 4.03-4.04. Saito, K., M. Kunii, and K. Araki, 2014: Cloud resolving simulation of a local heavy rainfall event on 26 August 2011 observed by the Tokyo Metropolitan Area Convection Study (TOMACS) . CAS/JSC WGNE Research Activities in Atmospheric and Oceanic Modelling, 44, 5.05-5.06. Araki, K., H. Ishimoto, M. Murakami, and T. Tajiri, 2014: Temporal variation of close-proximity soundings within a tornadic supercell environment. SOLA, 10, 57-61. Araki, K., 2015: Cold-Air Damming. Tenki, 62, 545-547. Araki, K., 2015: Coastal front. Tenki, 62, 541-543.
Project	Research on Mechanism Elucidation of Typhoons and Severe Weather Phenomena and Development of Monitoring and Forecasting Technologies Research on Data Assimilation Technologies and High-level Use of Observation Data