Home  /  Daily Current Affairs  /  30-11-2022 / Fujiwhara Effect

Fujiwhara Effect

Posted on November 30, 2022 by admin1  67

In News

  • Recently, two cyclones, namely super typhoon Hinnamnor & tropical storm Gardo started hovering around the central line between them, showcasing the Fujiwhara Effect. 

About the Fujiwhara Effect

  • Definition:
    • The Fujiwhara Effect is any interaction between tropical storms formed around the same time in the same ocean region with their centers or eyes at a distance of less than 1,400 km, with intensity that could vary between a depression (wind speed under 63 km per hour) and a super typhoon (wind speed over 209 km per hour).
  • Propounder:
    • The Fujiwhara effect was identified by Sakuhei Fujiwhara, a Japanese meteorologist whose first paper recognising the Fujiwhara cases was published in 1921. 
  • Known examples:
    • The first known instance of the effect was in 1964 in the western Pacific Ocean when typhoons Marie and Kathy merged.
  • What it may lead to:
    • The interaction could lead to changes in the track and intensity of either or both storm systems. 
    • In rare cases, the two systems could merge, especially when they are of similar size and intensity, to form a bigger storm.
  • There are five different ways in which the Fujiwhara Effect can take place. 
    • The first is elastic interaction: 
      • In this only the direction of motion of the storms changes and is the most common case. 
      • These are also the cases that are difficult to assess and need closer examination.
    • The second is partial straining: 
      • In this a part of the smaller storm is lost to the atmosphere.
    • The third is complete straining out: 
      • In this the smaller storm is completely lost to the atmosphere. The straining out does not happen for storms of equal strength.
    • The fourth type is partial merger: 
      • In this the smaller storm merges into the bigger one and 
    • The fifth is complete merger: 
      • It takes place between two storms of similar strength.
    • During a merger interaction between two tropical cyclones the wind circulations come together and form a sort of whirlpool of winds in the atmosphere.

Source: DTE

 
Previous article Menace of Forced conversions
Next article Dr Verghese Kurian

Other News of the Day

In News The Union Government has stopped pre-matric scholarships for students from classes 1 to 8 belonging to Scheduled Caste (SC), Scheduled Tribe (ST), Other Backward Communities (OBC), and minority communities from the academic year 2022-23. The rationale behind the move  The government explained that these students are covered under the Right to Education (RTE)...
Read More

In News NITI Aayog has recently released a study report on Carbon Capture, Utilisation, and Storage (CCUS) Policy Framework and its Deployment Mechanism in India. About the Framework The report explores the importance of Carbon Capture, Utilisation, and Storage as an emission reduction strategy.  The report outlines broad level policy interventions needed across various sectors...
Read More

In News Recently the State of the Climate in Asia 2021 report was published by the World Meteorological Organization and the UN Economic and Social Commission for Asia and the Pacific (ESCAP). Report highlights On Asia: Natural Disasters: Floods and storms accounted for 80 percent of the natural disasters that struck Asia in 2021.  Flooding:...
Read More

Context Recently, researchers at the Yunnan University (China) have developed a variety of perennial rice named PR23 by crossbreeding regular annual rice Oryza sativa with a wild perennial variety from Africa.  In 2021, the variety was grown by more than 44,000 farmers in southern China.   Background Rice is a staple crop that feeds an estimated...
Read More

In News Recently, the Defence Minister of India stated that India has emerged as a regional power and net security provider in the Indo-Pacific. Key Points India’s capacity to provide humanitarian assistance and disaster relief to its citizens as well as regional partners has grown in recent years. India has strengthened multilateral partnerships through engagement...
Read More

In Context The Supreme Court recently said that increasing the number of judges will not reduce the problem of the pendency of cases. More about the news About the Public Interest Litigation (PIL): According to the PIL, “doubling” the number of judges in the High Courts and the district judiciary was a rather “simplistic” solution...
Read More

In News The forest officials in Manipur have been scanning “gambling dens” following reports of wild animals – dead or alive – being offered as prizes for raffle draws. About People are buying raffle draw tickets ranging from ?100 to ?500 to try their luck to win exotic meat.  Apart from wild boars and deer,...
Read More

In News The Himalayan yak has been accepted as a food animal by the scientific panel of the Food Safety and Standard Authority of India (FSSAI), after a recommendation from the Department of Animal Husbandry and Dairying (DAHD). Himalayan Yak About: Himalayan Yak is a species of long-haired domesticated cattle found throughout the Himalayan region...
Read More

In Context The Indian Army is currently engaged in bilateral exercises with five countries underway both inside and outside the country meant to improve interoperability.  About the exercises The 18th edition of India-U.S. Army exercise ‘Yudh Abhyas’ which is underway at Auli in Uttarakhand, about 100 km from the Line of Actual Control (LAC), has...
Read More

In News The World Health Organisation (WHO) announced that it would start using the term “mpox” for monkeypox, which has infected about 80,000 people in the first major outbreak of the viral disease outside Africa that began early this summer. The disease spread mainly in the Americas including the United States and Europe, primarily among...
Read More