scholarly journals Spatio-temporal Behaviours of Tropical Cyclones over the Bay of Bengal Basin in last Five Decades

2021 ◽  
Author(s):  
Manas Mondal ◽  
Anupam Biswas ◽  
Subrata Haldar ◽  
Somnath Mandal ◽  
Subhasis Bhattacharya ◽  
...  
Keyword(s):  
Tropical Cyclones ◽  
Bay Of Bengal ◽  
Bengal Basin ◽  
Spatio Temporal

scholarly journals Climatology of Frequency, Life Period, Energy and Speed for Tropical Disturbances and Cyclones over the Bay of Bengal

2021 ◽  
Vol 10 (1) ◽  
pp. 23-31
Author(s):  
Saurav Dey Shuvo
Keyword(s):  
Tropical Cyclone ◽  
Tropical Cyclones ◽  
Bay Of Bengal ◽  
Coastal Areas ◽  
Bengal Basin ◽  
Environmental Sciences ◽  
Total Frequency ◽  
Life Period ◽  
Basic Features ◽  
Translational Speed

Tropical disturbances and cyclones are regularly formed at the Bay of Bengal basin. There are some common traits in them, albeit each one of them is unique. Discerning climatology for the basic features of any tropical cyclone is useful in numerous ways. This research has attempted to find a climatology for frequency, life period, energy, and speed for the tropical cyclones formed at the Bay of Bengal over a period of 31 years – from 1990 to 2020. The results elicit that there are marked changes in these aforementioned features. The total frequency, accumulated duration, and combined energy have escalated over the years. To be precise, these changes have taken effect more rigorously for the Post-monsoonal tropical cyclones. The overall translational speed has slightly diminished in recent years, except for the translational speed of cyclones formed during Pre-monsoon. These changes will have major ramifications on the lives and livelihoods of people, more so for those living in coastal areas. Hence, necessary actions are required to cut the probable losses and damages. The Dhaka University Journal of Earth and Environmental Sciences, Vol. 10(1), 2021, P 23-31

scholarly journals Segmentation of Tropical Cyclone Eye using Satellite Infrared Images

2019 ◽  
Vol 8 (2S5) ◽  
pp. 181-185
Keyword(s):  
Tropical Cyclone ◽  
Tropical Cyclones ◽  
Bay Of Bengal ◽  
Bengal Basin ◽  
Infrared Images ◽  
Circular Area ◽  
Remarkable Feature ◽  
Rule Based ◽  
Cyclone Tracking ◽  
Rule Based Classifier

The tropical cyclones are destructive weather systems and are known for their devastating effects during landfall. Cyclone tracking is one of the important tasks for the meteorologist. The eye of the tropical cyclone is the most remarkable feature. The eye of the cyclone is the roughly circular area extending over 30 - 65 km in diameter. The deepest convection is found around the eyewall for some tens of kilometers. The eye grows deeper when the cyclone becomes heavy and the winds speed grows high. In this study, the data from the 1995 - 2016 of the CIRA imagery for the tropical cyclone of the Bay of Bengal basin is analyzed and the model is developed to determine the eye of the cyclone. The segmented eye features are fed into the Rule Based Classifier which classifies the tropical cyclone images based on the presence and absence of the eye.

scholarly journals Spatio-temporal pattern of tropical cyclones: The case of cyclones of the bay of Bengal

2021 ◽  
Vol 71 (3) ◽  
pp. 213-229
Author(s):  
Bibi Hafsa ◽  
Raju Ahmed ◽  
Rocky Kumar
Keyword(s):  
Tropical Cyclones ◽  
Bay Of Bengal ◽  
Hot Spot ◽  
Climatic Variability ◽  
Research Work ◽  
System Transformation ◽  
Statistical Tool ◽  
Directional Distribution ◽  
Spatio Temporal ◽  
The Relationship

For the last few decades, the generalized pattern of tropical cyclones has gone through an unstable system transformation in the global changing climatic scenario. Thus, the broad aim of this research work was to explore the spatio-temporal changing pattern of tropical cyclones in the basin of the Bay of Bengal between 1985 and 2019. Cyclone track information data have been collected from Emergency Events Database (EM-DAT) server and Bangladesh Meteorological Department. The loss and damage statistics has been collected from different published sources. Geographical distributional characteristics such as mean center and standard directional distribution have been explored using the spatial statistical tool of ArcMap. The mean geographic center has been identified near the district of Bhola and Patuakhali. The cyclonic occurrences in the research area are oriented north-west to south-east according to standard directional distribution. Hot spot analysis was used to identify the most affected parts in the study area and found that there are no significant hotspots, but the distribution pattern is rather random. However, there are two minor concentration zones in the study area, one near Barguna and another one near Sandwip coast. SPSS software was also used here to analyze the relationship between cyclonic events and the loss/damage scenarios of the study area. The relationship between cyclonic velocity and damage of life and livelihood showed a strong correlation of .804 with a significance level of 99% (p < .01). Random cyclonic trends and patterns indicate a change in this region's climatic variability over the past 35 years.

scholarly journals Gravity Wave Behavior in Lower Stratosphere During Tropical Cyclones Over the Bay of Bengal

Radio Science ◽  
2018 ◽  
Vol 53 (11) ◽  
pp. 1356-1367 ◽  
Author(s):  
Gargi Rakshit ◽  
Soumyajyoti Jana ◽  
Animesh Maitra
Keyword(s):  
Gravity Wave ◽  
Tropical Cyclones ◽  
Bay Of Bengal ◽  
Lower Stratosphere

Spatio-temporal evolution of chlorophyll-a in the Bay of Bengal: a remote sensing and bio-argo perspective

2016 ◽  
Author(s):  
T. V. S. Udaya Bhaskar ◽  
Chiranjivi Jayaram ◽  
P. Rama Rao E. ◽  
K. H. Rao
Keyword(s):  
Remote Sensing ◽  
Chlorophyll A ◽  
Bay Of Bengal ◽  
Temporal Evolution ◽  
Spatio Temporal

scholarly journals Author Correction: On the processes influencing rapid intensity changes of tropical cyclones over the Bay of Bengal

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Saiprasanth Bhalachandran ◽  
R. Nadimpalli ◽  
K. K. Osuri ◽  
F. D. Marks ◽  
S. Gopalakrishnan ◽  
...  
Keyword(s):  
Tropical Cyclones ◽  
Bay Of Bengal ◽  
Intensity Changes

An amendment to this paper has been published and can be accessed via a link at the top of the paper.

Energetics and spatio-temporal variability of semidiurnal internal tides in the Bay of Bengal and Andaman Sea

2020 ◽  
Vol 189 ◽  
pp. 102444
Author(s):  
A.K. Jithin ◽  
P.A. Francis ◽  
A.S. Unnikrishnan ◽  
S.S.V.S. Ramakrishna
Keyword(s):  
Bay Of Bengal ◽  
Temporal Variability ◽  
Internal Tides ◽  
Andaman Sea ◽  
Spatio Temporal
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