scholarly journals NUMERICAL ANALYSIS OF Enhalus acoroides SEED DISPERSAL IN THE NORTHWESTERN SEA AREA OF IRIOMOTE ISLAND, JAPAN

2015 ◽  
Vol 71 (2) ◽  
pp. I_951-I_956 ◽  
Author(s):  
Tomokazu MURAKAMI ◽  
Hiroyoshi KOHNO ◽  
Michiru TAMAMOTO ◽  
Akira MIZUTANI ◽  
Shinya SHIMOKAWA
Keyword(s):  
Numerical Analysis ◽  
Seed Dispersal ◽  
Enhalus Acoroides ◽  
Iriomote Island ◽  
Sea Area

scholarly journals NUMERICAL ANALYSIS OF Enhalus acroides FRUCTIFICATION DISPERSAL IN THE NORTHWESTERN SEA AREA OF IRIOMOTE ISLAND, JAPAN

2015 ◽  
Vol 71 (2) ◽  
pp. I_1351-I_1356 ◽  
Author(s):  
Tomokazu MURAKAMI ◽  
Hiroyoshi KOHNO ◽  
Michiru TAMAMOTO ◽  
Akira MIZUTANI ◽  
Shinya SHIMOKAWA
Keyword(s):  
Numerical Analysis ◽  
Iriomote Island ◽  
Sea Area

scholarly journals A numerical analysis of Ephedra L. based on reproductive features

2013 ◽  
Vol 20 (1) ◽  
pp. 51-60 ◽  
Author(s):  
Yong Yang
Keyword(s):  
Numerical Analysis ◽  
Seed Dispersal ◽  
Endemic Species ◽  
Reproductive Organs ◽  
Old World ◽  
Geographic Ranges ◽  
Dispersal Syndromes ◽  
Plant Taxon ◽  
Seed Dispersal Syndromes

A numerical analysis of Ephedra L. was conducted based on 29 characters of reproductive organs. The results indicate that species are not grouped according to their geographic ranges, sect. Alatae is in one group, sect. Asarca excluding E. cutleri and E. viridis consists of a Eu-asarca group while sect. Ephedra plus E. cutleri and E. viridis of the traditional sect. Asarca make up a third expanded Ephedra group. The Old World sect. Monospermae including E. rhytidosperma, E. equisetina, E. nebrodensis, E. monosperma and E. procera was rediscovered in this study while those Himalayan endemic species (e.g. E. minuta, E. likiangensis, E. saxatilis, E. dawuensis and E. gerardiana) used to be grouped in the Old World sect. Monospermae are clustered together with sect. Scandentes including E. foeminea, E. ciliata, E. altissima and E. fragilis. This study further confirms that the adaptive seed dispersal syndromes of sect. Asarca have originated for not only once. Some new features are introduced as related to dispersal, e.g. weight and size of seeds, and nature and thickness of the outer envelope.DOI: http://dx.doi.org/10.3329/bjpt.v20i1.15464Bangladesh J. Plant Taxon. 20(1): 51-60, 2013 (June) 

scholarly journals NUMERICAL ANALYSIS OF SEDIMENT TRANSPORT IN AMITORI BAY, IRIOMOTE ISLAND, JAPAN

2013 ◽  
Vol 69 (2) ◽  
pp. I_928-I_933 ◽  
Author(s):  
Tomokazu MURAKAMI ◽  
Akiyuki UKAI ◽  
Kota NOGUCHI ◽  
Hiroyoshi KOHNO ◽  
Akira MIZUTANI ◽  
...  
Keyword(s):  
Numerical Analysis ◽  
Sediment Transport ◽  
Iriomote Island

scholarly journals NUMERICAL ANALYSIS FOR DISPERSAL AND RECRUITMENT OF PELAGIC LARVAE OF THE LAND CRABS IN AMITORI BAY, IRIOMOTE ISLAND

2018 ◽  
Vol 74 (2) ◽  
pp. I_462-I_467 ◽  
Author(s):  
Wataru DOI ◽  
Tomokazu MUARAKAMI ◽  
Masato YOSHIOKA ◽  
Akira MIZUTANI ◽  
Shinya SHIMOKAWA ◽  
...  
Keyword(s):  
Numerical Analysis ◽  
Iriomote Island ◽  
Pelagic Larvae ◽  
Land Crabs

scholarly journals DISTRIBUTION AND GROWTH CONDITION OF ENHALUS ACOROIDES IN IRIOMOTE ISLAND

2014 ◽  
Vol 70 (2) ◽  
pp. I_1068-I_1073
Author(s):  
Kana TAKEYAMA ◽  
Hiroyoshi KOHNO ◽  
Toshie KURAMOCHI ◽  
Ayaka IWASAKI ◽  
Tomokazu MURAKAMI ◽  
...  
Keyword(s):  
Growth Condition ◽  
Enhalus Acoroides ◽  
Iriomote Island

scholarly journals PARTICLE TRACKING ANALYSIS BASED ON ECOLOGICAL INVESTIGATION OF SEEDS OF ENHALUS ACOROIDES IN AMITORI BAY, IRIOMOTE ISLAND, JAPAN

2014 ◽  
Vol 70 (2) ◽  
pp. I_1074-I_1079
Author(s):  
Tomokazu MURAKAMI ◽  
Hiroyoshi KOHNO ◽  
Ayaka IWASAKI ◽  
Toshie KURAMOCHI ◽  
Shinya SHIMOKAWA ◽  
...  
Keyword(s):  
Particle Tracking ◽  
Ecological Investigation ◽  
Enhalus Acoroides ◽  
Iriomote Island

Numerical Analysis of Failed Forecasts of Waves Under Low Pressures From Viewpoint of Ship Operation

2014 ◽  
Author(s):  
Kenji Sasa ◽  
Chen Chen ◽  
Shigeaki Shiotani ◽  
Teruo Ohsawa ◽  
Daisuke Terada
Keyword(s):  
Numerical Analysis ◽  
Wind Speed ◽  
Wave Height ◽  
Wind Direction ◽  
Growth Pattern ◽  
Maritime Transportation ◽  
Sea Area ◽  
Low Pressures ◽  
Ship Operation ◽  
Current Systems

Today, weather routing becomes more important under the current situation of international maritime transportation. However, the authors reveal that the current systems are not necessarily sufficiently reliable. It is also worthwhile to consider the background of the difficulty in numerically forecasting winds and waves. Here, two failed cases of wave forecasts are verified using WRF and SWAN, two numerical meso-meteorology models. In both failed cases, low pressures developed from the southern sea area of Japan with a northeast direction. First, wind direction can be reproduced correctly, even if the resolution of the simulation is changed. Second, if the resolution is insufficient, wind speed will be underestimated as smaller than the observed values. At the same time, wave height tends to be underestimated as compared to observed values, too. This is the feasibility study for improving the forecasting of wave growth pattern due to developing low pressures from the viewpoint of safe ship operation.

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