Search Results 1-20 of 264

  • Interannual-decadal sea-surface temperature variability in the southern hemisphere  [in Japanese]

    Morioka Yushi

    … <p>Interannual variations of sea-surface temperature (SST) in the subtropics and mid-latitudes of the Southern Hemisphere are characterized by a dipole pattern of SST anomalies over the northeastern and southwestern parts of each ocean basin, known as the Subtropical Dipole. …

    Oceanography in Japan 29(1), 1-17, 2020


  • Satellite Remote Sensing of Irrigation in the Aral Sea Basin using Multi-Spectral Sensors  [in Japanese]

    峠 嘉哉 , MUTHONI Mbugua Jacqueline , 田中 賢治 , KHUJANAZAROV Temur

    … In the Aral Sea basin, due to severe drought and land salinization, land use annually changes due to lack of water resource and local adaptation against salinization. … Diurnal difference of surface temperature was utilized, because surface heat capacity and cooling effect of evapotranspiration are different on irrigated area comparing to surrounding arid non-irrigated zone. …

    京都大学防災研究所年報. B = Disaster Prevention Research Institute Annuals. B 62(B), 650-655, 2019-09


  • Extraction of cooling-induced current from the satellite sea surface height anomaly in the Japan Sea  [in Japanese]

    Takamasu Atsushi , Isoda Yutaka , Asahi Keijiro

    Bulletin of Fisheries Sciences, Hokkaido University 69(1), 19-28, 2019-08-07

    IR  DOI 

  • 5. Geochemistry and Environmental Science

    … Sekimoto (30011) [185]CO5-2 Volcanic and Tectonic History of Philippine Sea Plate (South of Japan) Revealed by 40Ar/39Ar Dating Technique /O. … (30069) [195]CO5-12 Fission Track Age and Cooling History of Granitoids in Oku-Izumo Area, Shimane Prefecture /H. … (30098) [198]CO5-15 Research on Earth Surface Processes by Use of Mineral Luminescence /N. …

    KURNS Progress Report (2018), 185-200, 2019-08


  • Frontolysis by surface heat flux in the eastern Japan Sea : importance of mixed layer depth

    Ohishi Shun , Aiki Hidenori , Tozuka Tomoki , Cronin Meghan F.

    … Frontolysis mechanisms by which surface heat flux relaxes the sea surface temperature (SST) front in the eastern Japan Sea (JS) are investigated in detail using observational datasets. … On the warm southern side of the front, larger air–sea specific humidity and temperature differences induce stronger turbulent heat release compared to the cool northern side. …

    Journal of oceanography 75(3), 283-297, 2019-06


  • Numerical experiments of surface clockwise circulation in Funka Bay during early summer  [in Japanese]

    Kobayashi Naoto , Isoda Yutaka , Horio Kazuki

    … <p>A current system consisting of surface clockwise circulation is the most remarkable feature observed in Funka Bay during early summer. … The present study investigates its formation process using a numerical model driven by the following three factors during the typically strati fied season, i.e., (1) freshening of coastal water because of river discharge, (2) density inflow of Tsugaru Gyre water, and (3) surface heat flux. …

    Oceanography in Japan 28(4-5-6), 51-74, 2019



    HIRAO Yoshihide , HOYANO Akira

    … Herein, we discuss one of the medium-sized cities, Takamatsu, located on the coast of the Seto Inland Sea. … The following issues were identified: 1) There are many asphalt-paved streets and parking lots, where the surface temperature increases under sun exposure. … 2) The water surface area is small. … 3) There are few trees and hence lesser cooling effect. …

    Journal of Environmental Engineering (Transactions of AIJ) 84(759), 525-532, 2019


  • Effect of honeycomb porous plate on critical heat flux in saturated pool boiling of artificial seawater

    Fogaça Wilton , Mori Shoji , Imanishi Kosuke , Okuyama Kunito , Piqueira J.R.C.

    … In long-duration experiments, saturated pool boiling of artificial seawater was performed with an upward-facing plain copper heated surface 30 mm in diameter. … It was verified that sea-salt deposits could greatly improve surface wettability and capillarity, enhancing the CHF. …

    International journal of heat and mass transfer (125), 994-1002, 2018-10


  • Relation of Convective Bursts to Changes in the Intensity of Typhoon Lionrock (2016) during the Decay Phase Simulated by an Atmosphere-Wave-Ocean Coupled Model

    WADA Akiyoshi , OYAMA Ryo

    … Lionrock paused the decay of the intensity of the storm, although sea surface cooling (SSC) was induced distinctly by Lionrock along the track. … The coupled model successfully simulated the occurrence of CBs north of the near-surface-convergence area, which was formed by the confluent of the storm's tangential winds with near-surface frictional spiral inflow from the surrounding region where the significant wave height was high. …

    Journal of the Meteorological Society of Japan. Ser. II 96(6), 489-509, 2018



    URANO Daisuke , SHIMURA Tomoya , MORI Nobuhito , MIZUTA Ryo

    …  While AGCMs have an advantage in high resuolution simulation, the sea surface temperature (SST) is given as the lower boundary condition, and therefore the influence of the ocean is not considered. … In this study, we have developed a MRI-AGCM-SlabOcean-Wave coupled model that considers the effects of SST cooling which are dependent on wind speed and wave.<br> In the coupled model, the fluctuation of heat flux affects and biases the wind speed distribution. …

    Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 74(2), I_1375-I_1380, 2018


  • Structure and Evolution of a Convective System with Bow Echo Associated with Terrain on Jeju Island, Korea

    KANG Yunhee , JEONG Jong-Hoon , YOU Cheol-Hwan , LEE Dong-In

    … <p> On July 13, 2012, a bow echo was observed over the lee side of the Mt. Halla (1,950 m above sea level) on Jeju Island, Korea. … Three-dimensional (3D) wind-field and surface observation analyses were carried out to understand the structure and evolution of convective systems with a bow echo on a bell-shaped terrain. …

    Journal of the Meteorological Society of Japan. Ser. II 96(5), 447-460, 2018


  • Impact of ENSO on the Thermal Condition over the Tibetan Plateau

    WANG Yafei , XU Xiaoyu

    … There were significant positive correlations between the snow water equivalent (SWE) over the TP from November to next April and sea surface temperature (SST) in the Eastern Equatorial Pacific (EEP) in November from 1987 to 2005. … There was almost no significant negative correlation between the SWE and TP surface temperature (representing the TP thermal condition) in winter. …

    Journal of the Meteorological Society of Japan. Ser. II 96(3), 269-281, 2018


  • Relationship between Sea Surface Temperature and Rainfall in the Philippines during the Asian Summer Monsoon

    TAKAHASHI Hiroshi G. , DADO Julie Mae B.

    … <p> We offer a new perspective on a relationship between sea surface temperature (SST) over the windward region of the Philippines and rainfall in the western Philippines during the Asian summer monsoon season, which has been known as the negative correlation, using observational daily SST, rainfall, and atmospheric circulation datasets. …

    Journal of the Meteorological Society of Japan. Ser. II 96(3), 283-290, 2018


  • Topics on carbonate relevant topics by IODP  [in Japanese]

    Kawahata Hodaka , Yokoyama Yusuke , Kuroda Junichiro , Iryu Yasufumi , Kano Akihiro

    … IODP Expedition 310 around Tahiti enabled to delineate the course of last deglacial sea level rise and its impact on reef growth and geometry at this island. … Amplitude of the sea-level jump around melt water pulse-1A (MWP-1A) was estimated at 12-22 m (most likely 14-18 m). … Sea-surface temperature variations in 20-10 kyr indicated a temperature drop of 1.5 °C at the Younger Dryas. …

    The Journal of the Geological Society of Japan 124(1), 35-45, 2018


  • Atlantic effects on recent decadal trends in global monsoon

    KAMAE Youichi , LI Xichen , XIE Shang-Ping , UEDA Hiroaki , 釜江 陽一 , 植田 宏昭

    … Specifically the trends during the satellite era since 1979 include Atlantic and Indian Ocean warming and Pacific cooling associated with phase shifts of the Atlantic Multidecadal Oscillation and the Pacific Decadal Oscillation, and enhanced global monsoon (GM) circulation and rainfall especially in the Northern Hemisphere. …

    Climate Dynamics 49(9-10), 3443-3455, 2017-11


  • Seasonal SST variability during Mid-Holocene deduced from coupled coral Sr/Ca and oxygen isotope records from Kikai Island, Japan  [in Japanese]

    Lariosa Garas Kevin , Watanabe Tsuyoshi , Yamazaki Atsuko

    … [MATERIALS AND METHODS] We reconstructed sea surface temperature (SST) using coupled Sr/Ca and δ18O records of two fossil corals with 14C age dates of 5.7 kyr and 3.2 kyr BP, collected from uplifted reef terraces in Kikai Island, Japan. … This shows the end-timing of cooling event in Northwestern Pacific around 3.2 kyr BP then shifted to gradual warming period in Late Holocene. …

    Abstracts of Annual Meeting of the Geochemical Society of Japan 64(0), 97, 2017


  • Study on Forced-Convective Boiling Heat Transfer of Seawater with Sea Salt Deposition  [in Japanese]

    UESAWA Shinichiro , KOIZUMI Yasuo , SHIBATA Mitsuhiko , NAGATAKE Taku , YOSHIDA Hiroyuki

    … This study intended to provide base data to consider reactor core cooling by seawater. … In the pool nucleate boiling experiments of seawater, slow surface temperature excursion was initiated at some heat flux that was considerably lower than the critical heat flux although the surface heating rate was kept almost constant. …



  • Study on Electrification of Remote and Isolated Tropical Islands Using OTEC

    Habib Walid Bin , Hassam Mahedi , Rupan Tahmid Hasan

    … Covering 71% of earth's surface the ocean is the largest solar energy collector absorbing about 70% of day's solar energy. … On an average day the amount of heat energy absorbed by 60 million square kilometers of the tropical sea surfaces commensurate burning of 250 billion barrels of oil and when converted to electrical energy it can limit the demand of electricity for 260 million people per day. …

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES) (2), 1, 2016-10-14

    IR  DOI 

  • Forecasting a Large Number of Tropical Cyclone Intensities around Japan Using a High-Resolution Atmosphere–Ocean Coupled Model

    Ito Kosuke , Kuroda Tohru , Saito Kazuo , Wada Akiyoshi

    … The improvement rates in CMSM relative toGSMandAMSMgenerally increasewith increasing forecast time (FT).CMSMis better thanGSMand AMSM by 27.4% and 21.3% at FT 5 48 h in terms of minimum sea level pressure, respectively. … This is due to smaller initial intensity errors and sea surface cooling consistent with in situ observations that suppress erroneous TC intensification. …

    Weather and Forecasting 30(3), 793-808, 2016-06-05


  • Quantification of Warming Climate-Induced Changes in Terrestrial Arctic River Ice Thickness and Phenology

    Park Hotaek , Yoshikawa Yasuhiro , Oshima Kazuhiro , Kim Youngwook , Ngo-Duc Thanh , Kimball John S. , Yang Daqing , 泰弘 吉川

    … Climate data indicated an increasing trend in winter surface air temperature (SAT) over the pan-Arctic during the study period. … Nevertheless, the river ice thickness simulations exhibited a thickening regional trend independent of SAT warming, and associated with less insulation and cooling of underlying river ice by thinning snow cover. …

    Journal of Climate 25(5), 1733-1754, 2016-03


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