Faculty Profiles - FUJINAMI, Hatsuki

Papers - FUJINAMI, Hatsuki

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Impact of tropical deforestation on precipitation over Borneo Island Reviewed

Takahashi, A., T. Kumagai, H. Kanamori, H. Fujinami, T. Hiyama and M. Hara,

Journal of Hydrometeorology Vol. 18 ( 11 ) page： 2907 - 2922 2017.11

Dominant Synoptic Disturbance in the Extreme Rainfall at Cherrapunji, Northeast India, Based on 104 Years of Rainfall Data (1902-2005) Reviewed

Murata, F., T. Terao, H. Fujinami, T. Hayashi, H. Asada, J. Matsumoto, Hiambok Jones Syiemlieh

Journal of Climate Vol. 30 ( 20 ) page： 8237 - 8251 2017.10

Contrasting features of monsoon precipitation around the Meghalaya Plateau under westerly and easterly regimes Reviewed

Fujinami, H., T. Sato, H. Kanamori and F. Murata

Journal of Geophysical Research -Atmospheres Vol. 122 ( 18 ) page： 9591 - 9610 2017.9

Sixteen-year variation of horizontal phase velocity and propagation direction of mesospheric and thermospheric waves in airglow images at Shigaraki Reviewed

Takeo, D., K. Shiokawa, H. Fujinami, Y. Otsuka, T. S. Matsuda, M. K. Ejiri, T. Nakamura and M. Yamamoto

Journal of Geophysical Research -Atmospheres Vol. 122 page： 8770-8780 2017.8

Sixteen year variation of horizontal phase velocity and propagation direction of mesospheric and thermospheric waves in airglow images at Shigaraki, Japan

Takeo D., Shiokawa K., Fujinami H., Otsuka Y., Matsuda T. S., Ejiri M. K., Nakamura T., Yamamoto M.

JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Vol. 122 ( 8 ) page： 8770 - 8780 2017.8

Effects of the South Asian monsoon intraseasonal modes on genesis of low pressure systems over Bangladesh Reviewed

Hatsuzuka, D. and H. Fujinami

Journal of Climate Vol. 30 ( 7 ) page： 2481 - 2499 2017.4

Interdecadal modulation of the interannual variability in precipitation and atmospheric circulation pattern over northern Eurasia Reviewed

Hiyama, T., H. Fujinami, H. Kanamori, T. Ishige, K. Oshima

Environmental Research Letters Vol. 11 page： 065001 2016.6

Trend and interannual variation in summer precipitation in eastern Siberia in recent decades Reviewed

Fujinami, H., T. Yasunari and T. Watanabe

International Journal of Climatology Vol. 36 page： 355 - 368 2016.1

Separating physical and biological controls on long-term evapotranspiration fluctuations in a tropical deciduous forest subjected to monsoonal rainfall Reviewed

Igarashi, Y., G. G. Katul, T. Kumagai, N.Yoshifuji, T. Sato, N. Tanaka, K. Tanaka, H. Fujinami, M. Suzuki, C. Tantasirin

Journal of Geophysical Research -Biogeosciences Vol. 120 page： 1262-1278 2015.7

Role of tropical cyclones along the monsoon trough in the 2011 Thai flood and interannual variability Reviewed

Takahashi, G. H., H. Fujinami, T. Yasunari, J. Matsumoto, S.Baimoung

Journal of Climate Vol. 28 page： 1465-1476 2015.2

Separating physical and biological controls on long-term evapotranspiration fluctuations in a tropical deciduous forest subjected to monsoonal rainfall

Igarashi, Y., G. G. Katul, T. Kumagai, N.Yoshifuji, T. Sato, N. Tanaka, K. Tanaka, H. Fujinami, M. Suzuki, C. Tantasirin

Journal of Geophysical Research -Biogeosciences- 2015

Characteristics of low pressure systems associated with intraseasonal oscillation of rainfall over Bangladesh during boreal summer Reviewed

Hatsuzuka, D, T. Yasunari, H. Fujinami

Monthly Weather Review 2014.11

Dynamics of distinct intraseasonal oscillation in summer monsoon rainfall over the Meghalaya-Bangladesh-western Myanmar region Reviewed

Fujinami, H., Tetsuzo Yasunari, Akihito Morimoto

Climate Dynamics Vol. 43 page： 2147 - 2166 2014

Advanced Asian summer monsoon onset in recent decades Reviewed

Kajikawa, Y., T. Yasunari, S. Yoshida and H. Fujinami

Geophysical Research Letters Vol. 39 2012

Seasonal and intra-seasonal modulation of tropical cyclogenesis environment over the Bay of Bengal during the extended summer monsoon Reviewed

Yanase, W., M. Satoh, H. Taniguchi and H. Fujinami

Journal of Climate Vol. 25 page： 2914-2930 2012

Characteristic intraseasonal oscillation of rainfall and its effect on interannual variability over Bangladesh during boreal summer Reviewed

Fujinami, H., D. Hatsuzuka, T. Yasunari, T. Hayashi, T. Terao, F. Murata, M. Kiguchi, Y. Yamane, J. Matsumoto, Md. N. Islam and A. Habib

International Journal of Climatology Vol. 31 page： 1192-1204 2011

Diurnal rainfall pattern observed by Tropical Rainfall Measuring Mission Precipitation Radar (TRMM-PR) around the Indochina peninsula Reviewed

Takahashi, H. G., H. Fujinami, T. Yasunari, and J. Matsumoto

Journal of Geophysical Research 2010.4

*The Effects of Midlatitude Waves over and around the Tibetan Plateau on Submonthly Variability of the East Asian Summer Monsoon Reviewed

Fujinami, H. and T. Yasunari

Monthly Weather Review Vol. 137 ( 7 ) page： DOI: 10.1175/2009MWR2826.1 2009.7

Authorship：Lead author,　Corresponding author Language：English Publishing type：Research paper (scientific journal)

Convective variability at submonthly time scales (7–25 days) over the Yangtze and Huaihe River basins (YHRBs) and associated large-scale atmospheric circulation during the mei-yu season were examined using interpolated outgoing longwave radiation (OLR) and NCEP–NCAR reanalysis data for 12 yr having active submonthly convective fluctuation over the YHRBs within the period 1979–2004. Correlations between convection anomalies over the YHRBs and upper-level streamfunction anomalies at every grid point show two contrasting patterns. One pattern exhibits high correlations along the northern to eastern peripheries of the Tibetan Plateau (defined as the NET pattern), whereas the other has high correlations across the Tibetan Plateau (defined as the AT pattern). Composite analysis of the NET pattern shows slow southward migration of convection anomalies from the northeastern periphery of the Tibetan Plateau to southern China, in relation to southward migration of the mei-yu front caused by simultaneous amplification of upper- and low-level waves north of the YHRBs. In the AT pattern, convection anomalies migrate eastward from the western Tibetan Plateau to the YHRBs. A low-level vortex is created at the lee of the plateau by eastward-moving upper-level wave packets and associated convection from the plateau. Rossby wave trains along the Asian jet characterize the upper-level circulation anomalies in the two patterns.

Diurnal Variation of Water Vapor Mixing between the Atmospheric Boundary Layer and Free Atmosphere over Changwu, the Loess Plateau in China Reviewed

Atsuhiro Takahashi, Tetsuya Hiyama, Masanori Nishikawa, Hatsuki Fujinami, Atsushi Higuchi, Wei Li, Wenzhao Liu and Yoshihiro Fukushima

SOLA(Scientific Online Letters on Atmosphere) Vol. 4 page： 33-36 2008

Resolution dependency of the diurnal cycle of convective clouds over the Tibetan Plateau in a mesoscale model Reviewed

Sato, T., T. Yoshikane, M. Satoh, H. Miura, and H. Fujinami

Journal of Meteorological Society of Japan Vol. 84A page： 17-31 2008

Language：English Publishing type：Research paper (scientific journal)

Sensitivity of precipitation diurnal cycle to the horizontal grid spacing was investigated using a mesoscale model without cumulus parameterization. Four numerical experiments with changing horizontal resolution are performed over one month with NCEP reanalysis boundary forcing. The studied range of grid spacing is from 3.5 km to 28 km which has been known as the intermediate scale to simulate mesoscale systems with/without cumulus parameterization. The target area is the Tibetan Plateau where pronounced diurnal cycle of convective systems is observed during the spring season.
Lower resolution runs (14 and 28 km grid) show delayed formation and delayed mature stage of the cumulus convection in comparison to satellite observations. On the other hand, higher resolution runs (3.5 and 7 km grid) reproduce the proper development of the clouds after local noon which is consistent with observations. The total hydrometeor content and rainfall rate increase with grid size. Such systematic relationship of resolution dependencies are confirmed even in the monthly mean diurnal cycle, although most of previous studies examined only short periods. These results suggest that finer resolution at less than 7 kilometer is necessary to simulate realistic phase of the precipitation diurnal cycle over the Tibetan Plateau.
The mechanism that is responsible for the resolution dependency is discussed. We suggest that the daytime convection which initially occurs due to unstable stratification over the Tibetan Plateau in spring tends to have a horizontal scale smaller than that is resolvable by the coarse resolution runs. The delayed cloud formation induces larger downward shortwave radiation, which increases surface fluxes and results in too strong rainfall in the coarser resolution runs.

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Papers - FUJINAMI, Hatsuki