As per Sri Lanka's Disaster Management Centre (DMC), 201 houses have The ninth depression, and the third and strongest named storm of the 2017 North Indian Ocean cyclone season, Ockhi originated from an area of low pressure that formed over the southwest Bay of Bengal on November 28. The southern districts of Kerala and Tamil Nadu received heavy rainfall as Cyclone Ockhi, which originated near the Sri Lankan coast, rattled through the Arabian Sea towards Lakshwadeep islands. It is centered at Latitude 19°N and Longitude 71.3°E, around 260 km southsouthwest of Surat and 140 km west of Mumbai. Situation Report 2 - Cyclone Ockhi 7th December 2017 (9:00 am) A. Cylone Storm - Ockhi OCKHI system further weakened, laid as low pressure area over south coastal Gujarat and Between November 30 and December 4 last year, powerful winds and heavy rains brought on by Cyclone Ockhi left 93 people dead across south India On January 18, Defence Minister Nirmala Sitharaman announced that search and rescue operations for fisherfolk in the aftermath of Cyclone Ockhi that struck southern India had been called off. Strong tropical cyclone (TC) Ockhi occurred in the southeastern Arabian Sea (AS) in 2017. The cyclone formation was detected during the morning of Wednesday, November 29. Tropical cyclone Ockhi, which matured into a very severe cyclonic storm (VSCS) in the southeast Arabian Sea, took atypical track over the Arabian Sea. The analysis is in Hindi, keeping in mind our Hindi Medium students. It intensified rapidly from a depression to a cyclone in a span of 9 h and further to a very severe cyclone in 24 h. The present study shows that … Interested in General Knowledge and Current Affairs? (or is it just me...), Smithsonian Privacy In the present study, an attempt has been made to understand the mechanism of cyclogenesis, RI and recurvature of the Ockhi using satellite and reanalysis datasets. But the origin of Ockhi was much closer home. Authorities, including the National Disaster As of this morning, the cyclone is around 160 km east of Lakshadweep in the Arabian Sea. Concurrently, an abrupt reduction in the precipitation rate, accompanied by weak updraft in the eye, was observed. 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The strongest storm of the 2017 North Indian Ocean cyclone season, Ockhi originated from an area of disturbed weather near Sri Lanka on November 29 Proximity to land initially prevented significant strengthening; however, as it entered the Arabian Sea, favourable conditions allowed it to quickly strengthen on December 1 Heat waves over Andhra Pradesh : A case study of summer 2003 C. 38 trains were cancelled on October 12th, 2014. In case you don’t know what is cyclone Ochki, here are 10 points you need to know about this latest threat: 1. Ockhi is expected to travel north towards Mumbai and Gujarat in the next 48 The study will discuss the variation of various ionospheric parameters/phenomena over this period using variety of instruments such as ionosondes, GPS derived TEC, scintillation data etc over the Indian equatorial station Tirunelveli. There were also some unidentified fishers from … about 223 fishermen and evacuated thousands of people from cyclone hit About RIMES. Cyclone Ockhi developed in the Northern Indian Ocean southwest of Sri Lanka and rapidly intensified into a cyclonic storm, killing over 350 people from southern Tamil Nadu and Kerala, India between 30 November and 3 December 2017. Cyclones are categorised by the maximum wind speed they generate. The dynamic mechanisms of the long-term phytoplankton bloom after the passage of the TC were investigated in this study. top state official said, The strongest storm of the 2017 North Indian Ocean cyclone season, Ockhi originated from an area of disturbed weather near Sri Lanka on November 29, Proximity to land initially prevented significant strengthening; however, as it entered the Arabian Sea, The dynamic mechanisms of the long-term phytoplankton bloom after the passage of the TC were investigated in this study. In fact, the city is expected to witness an unusual spell of rainfall activity as the cyclone is recurving towards Gujarat coast. NATURAL HAZARDSDE: 4333 Disaster risk analysis and assessment. DEC 1 - 9:30 AM: Cyclone Ockhi killed nine people in coastal Kerala and Tamil Nadu and damaged dozens of houses in Tamil Nadu's Kanyakumari dstrict. Management Authority (NDMA), India's Coast Guard and the Navy, have rescued A STUDY ON OCKHI CYCLONE AND ITS IMPACT IN KANYAKUMARI DISTRICT - WITH SPECIAL REFERENCE TO DISASTER MANAGEMENT P. GIRIJA Research Scholar of History Bharathidasan University Tiruchirappalli, Tamil Nadu. The possible role of gravity waves associated with cyclonic activity, considered as source of seeding of spread F is investigated. Strong tropical cyclone (TC) Ockhi occurred in the southeastern Arabian Sea (AS) in 2017. been destroyed while another 3,250 houses have been partially damaged. feared trapped at sea. Click here to stay informed and know what is happening around the world with our G.K. and Current Affairs section. Nanda Ashirwad Complex, 3rd Floor, Above Village Hyper Market, Chandralyout Main Road, Attiguppe , Bengaluru - 560040. Ockhi greatly changed the oceanic conditions and induced large variation in chlorophyll-a (Chl-a). This in turn has also added to their financial burden as not all children could get a job after finishing their studies. The present study shows that the Madden–Julian Oscillation (MJO) and warm oceanic conditions provided favourable dynamic and thermodynamic conditions for the genesis of cyclone Ockhi. Cyclone Ockhi barrelled into the Lakshwadeep islands in southwestern India on Saturday after drenching the neighboring states of Kerala and The case of Cyclone Nivar is similar to that of Cyclone Ockhi in several ways. Mumbai coastal line is on high alert as cyclone Ockhi is about to hit the coastal Maharashtra and Gujarat in next 24 hours. We found that unusually warm ocean temperatures favoured the evolution of Ockhi from a depression to cyclone in 9 hours and then to a very-severe-cyclone in 24 hours.” Notice, Smithsonian Terms of A Multi Instrument Case Study of Cyclone Ockhi and its effect on Ionosphere over the Indian Sector. Landsat 8 imageries of Pre and Post Ockhi where compared and changes made by cyclone … accumulated cyclone energy were significantly larger for cyclone Ockhi, in comparison with the climatologi-cal cyclone records. Ockhi greatly changed the oceanic conditions and induced large variation in chlorophyll-a (Chl-a). Present work shows the effect of cyclone Ockhi which originated from a low pressure area over southwest Bay of Bengal and adjoining areas of south Sri Lanka & equatorial Indian Ocean on 28 November, 2017. The present study is to make an attempt in the analysis of the post livelihood status of the fishermen community due to Ockhi cyclone in Kanyakumari district. These forecasts can be made only after an emerging depression is detected to have the properties of a cyclonic storm. It is currently 100 kilometres away from Thiruvananthapuram and moving in the south-west direction. Static Part: All about Cyclones- their origin, features and how is it different from typhoon and hurricane? It was one of the first episodes in the recent history that cyclone of such intensity landed on an urban city leading to high degree of devastation The cyclone is likely to hit coastal Andhra Pradesh around Thursday midnight. The cyclone originated near the south-western coast of Sri Lanka and followed a very unique trajectory by travelling along the coasts of Tamil Nadu, Kerala and Lakshadweep islands, then it took north-easterly turn travelling along the coasts of Maharashtra and Gujarat. 1.1 Cyclone Warning and Forecasting Recommendation 1.1.1 The Committee takes note of the submission by the Indian Meteorological Department (IMD) that cyclone Ockhi was an unusual phenomenon, which was evident in its rapid intensification. It is now moving closer to Lakshadweep. areas, officials said, as they continued their operations on Saturday. It formed near southern India and Sri Lanka on November 30, 2017, moved out over the Arabian Sea, intensified to category 3 strength on December 2–3, but then weakened quickly as it moved north and closer to land. Topics covered: Important Geophysical phenomena such as earthquakes, Tsunami, Volcanic activity, cyclone etc. Dr.T.ASOKAN Assistant professor Department of History Bharathidasan University Tiruchirappalli-24. On Saturday, at its most powerful, Ockhi had wind speeds between 155 and 165 km per hour, touching the upper border for ‘very severe cyclonic storm’. Super Cyclone Amphan: A Dynamical Case Study Sridhar Balasubramanian ∗ 1 and V amsi K Chalamalla † 2 1 Department of Mechanical Engineering and IDP in Climate Studies, Indian But the case of Ockhi is peculiar. Tamil Nadu, claiming so far around 14 lives with many fishermen still Cyclones with wind speeds between 165 and 220 km per hour are classified as ‘extremely severe cyclonic storm’. study has been conducted to estimate impact of O ckhi on Landuse and Landcover of Kanyakumari District. This was true in the case of Ockhi as well. Very Severe Cyclonic Storm Ockhi was a strong tropical cyclone that devastated parts of Sri Lanka and India in 2017, and was the most intense tropical cyclone in the Arabian Sea since Cyclone Megh in 2015. Use, Smithsonian Moreover, the ray tracing of gravity waves generated due to these cyclones are also carried out. The committee understands that forecasting rapid intensification of cyclones remains an area of concern. Ockhi is the strongest cyclone to develop in the Arabian Sea since Megh in 2015. This is especially important when we're talking about This cyclone falls under very severe cyclonic storm category and hence its effect on ionosphere has been investigated. Abstract 7483163074, 9380863034 The storm … Titli cyclone is ‘rarest of rare’ What to study? Interestingly, strong Spread F signatures were observed during the period of intense phase of the cyclone. High tidal waves hit Mumbai city at Marine drive on Monday. A division bench of Justices R. … The ADS is operated by the Smithsonian Astrophysical Observatory under NASA Cooperative hours, according to Indian Meteorological Department (IMD) Director S. However, Cyclone Ockhi which has already caused way too much devastation in many parts of South India is all set to revive the Mumbai rains. An alert was issued around noon. A habeas corpus petition was filed before the Madurai Bench of the Madras High Court on Tuesday seeking the production of 551 fishermen missing in Cyclone Ockhi. Astrophysical Observatory. Disaster and disaster management. Editor's note: Cyclone Ockhi, the first severe storm in almost 40 years to have travelled about 2,400 kilometres from the Bay of Bengal to as far as the Gujarat coast, cut a path of devastation and left in its wake shattered livelihoods and broken families.This, part two of a three-part series, examines the lack of adequate measures taken to tackle the effects of the cyclone. Sudevan in Trivandrum, though it is likely to lose intensity. Guard after Cyclone Ockhi hit the southern districts of Kerala and Tamil Nadu, resumed today -- with 102 Kerala fishermen yet to return home, a Contact. Update on December 5, 2017 6:50 PM: Cyclone Ockhi weakens into deep depression, may or may not cross Gujarat coast. For reprint rights: Syndications Today, Cyclone Ockhi: All about the origin, destination and damage caused, The deep depression in the south of Kanyakumari and west of Sri Lanka, intensified and resulted into a cyclonic storm, Rescue operations, launched jointly by the Navy, the Air Force and the Coast The ionosphere gets modulated by the upward propagating waves that originated from different meteorological processes in the troposphere such as thunderstorms, tropical cyclones etc. Apurv discuss on Cyclone Ockhi. Location, location, location! Initially, role of easterly waves (EW) and Madden Jullian Oscillations (MJO) on the cyclogenesis of … Cyclone Ockhi continues to weaken gradually and is now seen as a Deep Depression over east-central Arabian Sea. Earlier studies have shown that MJO, an oceanic-atmospheric phenomena, plays a vital role in the genesis of cyclones in the north Indian Ocean by providing favourable background atmospheric conditions. Agreement NNX16AC86A, Is ADS down? favourable conditions allowed it to quickly strengthen on December 1, According to some media reports, in Sri Lanka, some 55,000 people were reportedly affected by the bad weather while over 3,000 people have been displaced. Cyclone Ockhi-driven rains lashed Mumbai and an alert has been sent to Gujarat, where it is expected to make a landfall. East of Lakshadweep in the southeastern Arabian Sea since Megh in 2015 line. 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