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Subject: Geography

  • ISRO’s develops 2nd Generation Distress Alert Transmitter (DAT-SG)

    Introduction

    • The Indian Space Research Organisation (ISRO) has pioneered an innovative Distress Alert Transmitter (DAT) to enhance the safety of fishermen at sea.
    • This second-generation DAT, known as DAT-SG, offers advanced capabilities and features, revolutionizing how emergency messages are communicated from fishing boats.

    About Distress Alert Transmitter (DAT-SG)

    • Operational Since 2010: The initial version of DAT became operational in 2010, enabling fishermen to send emergency messages through a communication satellite.
    • Central Control Station: Messages were received at the Indian Mission Control Centre (INMCC), a central control station, where alert signals were decoded to identify the distressed fishing boat.
    • Coordination with MRCCs: The extracted information was then forwarded to Maritime Rescue Coordination Centres (MRCCs) under the Indian Coast Guard (ICG), facilitating coordinated search and rescue operations.
    • Widespread Use: Over 20,000 DATs were deployed and utilized for distress communication.

    Evolution to DAT-SG

    • Technological Advancements: ISRO leveraged advancements in satellite communication and navigation to create the second-generation DAT (DAT-SG).
    • Acknowledgement Feature: DAT-SG now includes an acknowledgement feature, providing assurance to fishermen that their distress alert has been received and that help is on the way.
    • Two-Way Communication: In addition to sending distress signals, DAT-SG can receive messages from control centers. This allows the transmission of advance alerts regarding adverse weather conditions, cyclones, tsunamis, or other emergencies, enabling fishermen to make informed decisions for their safety.
    • Enhanced Fishing Zone Information: DAT-SG also disseminates information about potential fishing zones to fishermen at regular intervals, optimizing their catch and conserving time and fuel.
    • Mobile Connectivity: DAT-SG can be connected to mobile phones via Bluetooth, and messages can be displayed in the fishermen’s native language using a dedicated mobile app.

    Central Control and Coordination

    • Sagarmitra Network: The central control station, INMCC, employs a web-based network management system called Sagarmitra. This system maintains a database of registered DAT-SGs and facilitates real-time access for MRCCs.
    • Real-time Coordination: Sagarmitra enables Indian Coast Guard personnel to swiftly respond to distress calls without delay, enhancing search and rescue operations.
    • Operational 24/7: DAT-SG services are available round-the-clock, ensuring continuous support to fishermen facing emergencies at sea.

    Also read:

    Nabhmitra: Satellite-Based Safety Device for Fishermen

  • How Lakshadweep’s Unique Cultural Landscape developed?

    Lakshadweep

    Introduction

    • PM’s recent trip to Lakshadweep has brought the islands into the national conversation.

    About Lakshadweep

    Details
    Location In the Arabian Sea, off the southwestern coast of India.
    Geographical Formation Formed by coral activities and have a coral atoll structure.
    Formation as UT Formed as a Union Territory of India in 1956.
    Total Islands Comprises 36 islands, including atolls, coral reefs, and submerged banks.
    Inhibition 10 of the 36 islands are inhabited.
    Capital Kavaratti is the capital of the Union Territory.
    Area Total area of 32 sq km.

    Cultural Uniqueness of Lakshadweep

    • Diverse Influences: The islands exhibit a unique blend of cultural influences from Malayalis, Arabs, Tamils, and Kannadigas.
    • Distinct Islamic Practice: The form of Islam practiced here is distinct from the rest of India, reflecting the islands’ diverse ethnic and linguistic heritage.

    Historical Roots: A Pre-Islamic Hindu Society

    • Early Settlers: Scholar Andrew W Forbes suggests that the first settlers were likely Malabari sailors, possibly castaways.
    • Hindu Influence: Evidence points to a pre-Islamic Hindu society, with remnants like buried idols and traditional songs hinting at past Hindu practices.

    Conversion to Islam: A Gradual Transition

    • Arab Influence: Regular contact with Arab merchants and sailors led to the gradual conversion of islanders to Islam, distinct from the Islamic practices in mainland India.
    • Peaceful Introduction of Islam: Historian Mahmood Kooria notes that Islam’s introduction in the region, including Lakshadweep, was marked by minimal political conflict, primarily through commercial interactions.

    Cultural Development: Insulation from Mainland Influences

    • Control by the Arakkal Kingdom: In the 16th century, the islands fell under the Arakkal kingdom of Kannur, Kerala’s only Muslim dynasty.
    • European Interactions: Despite conflicts with European powers, the islands maintained a degree of protection and isolation.
    • British Era: The British rule further insulated Lakshadweep, allowing its culture to evolve distinctly from mainland India.
    • Linguistic Diversity: The islands’ isolation is reflected in their linguistic diversity, with Malayalam, Jazari, and Mahl being the main languages.

    Matrilineal Society: A Unique Aspect of Lakshadweep’s Islam

    • Matriliny in Islamic Society: Lakshadweep’s Islamic society is characterized by matriliny, tracing descent and property through the mother’s line.
    • Anthropological Perspectives: Anthropologist Leela Dube highlights the compatibility of matriliny with Islam in Lakshadweep, contrary to conventional Islamic practices.
    • Kerala’s Influence: Historian Manu Pillai links the matrilineal tradition to Kerala’s cultural patterns, where Nairs and Namboodiris practised matriliny.
    • Broader Indian Ocean Context: Kooria points out that matriliny is common among Muslims in the Indian Ocean region, suggesting a broader cultural context.

    Religious and Sociological Interpretations

    • Islamic Justification for Matriliny: Islanders believe their matrilineal practice aligns with Islam, citing Prophet Muhammad’s life with his first wife, Khadija.
    • Sociological Viewpoint: Dr. N P Hafiz Mohamad emphasizes that the islanders see matriliny as integral to their Islamic practice.

    Conclusion

    • Preservation of Unique Traditions: Lakshadweep’s relative isolation has helped preserve its unique cultural and religious practices.
    • Integration of Diverse Influences: The islands represent a remarkable integration of various cultural and religious influences, forming a distinct identity within the Indian subcontinent.
    • Significance in Broader Indian Ocean Culture: Lakshadweep’s cultural practices, particularly its matrilineal society, highlight the interconnectedness and diversity of cultures across the Indian Ocean region.

  • IIT-D develops India’s first National Landslide Susceptibility Map

    Introduction

    • In the wake of severe monsoon-triggered landslides, IIT Delhi has developed its first National Landslide Susceptibility Map.

    About National Landslide Susceptibility Map

    • High-Resolution Mapping: The map offers a detailed (100 sq. m resolution) overview of landslide susceptibility across India, including previously unrecognized areas.
    • Revealing New Risk Zones: It highlights traditional high-risk areas and uncovers new regions of concern, broadening the scope of landslide monitoring.
    • Innovative Analysis Method: An ensemble machine learning approach was utilized to enhance prediction accuracy and address data gaps in uncharted regions.
    • Advantages of Ensemble Models: This method effectively combines multiple models to provide a more reliable estimation of landslide risks.

    Data Gathering and Analytical Process

    • Extensive Data Compilation: Researchers collated data on around 150,000 landslide incidents from various sources, including the Geological Survey of India.
    • Identifying Contributing Factors: The team pinpointed 16 critical factors influencing landslide susceptibility, utilizing tools like GeoSadak for remote data collection.

    Implications for Disaster Management

    • Tool for Stakeholders: The map serves as a critical resource for government bodies, disaster management authorities, and organizations focused on landslide mitigation.
    • Enhancing Preparedness and Planning: It will facilitate vulnerability assessment, infrastructure planning, and implementation of mitigation measures.

    Need for such map

    • Persistent Hazard: Landslides, affecting a small but significant portion of India, pose a recurrent threat, especially in hilly regions.
    • Challenges in Management: The localized and sporadic nature of landslides has historically hindered effective tracking and prediction, underscoring the need for a comprehensive mapping solution.

    Future Directions and Public Accessibility

    • Developing an Early Warning System: Building on the map, efforts are underway to create a comprehensive Landslide Early Warning System.
    • Infrastructure Vulnerability Cartogram: A cartogram to identify susceptible infrastructure is also in progress.
    • Public Access and Engagement: The map and its data will be accessible through a web interface, promoting public interaction and awareness.

  • Earthquake and Tsunami strikes Central Japan

    japan

    Central Idea

    • On January 1, 2024, a 7.5-magnitude earthquake hit Ishikawa prefecture in Japan, triggering tsunami waves over a meter high.

    Japan’s Geographical Vulnerability

    • Japan’s geographical vulnerability, particularly concerning plate tectonics, is a critical aspect of its environmental and disaster management challenges.
    • The country’s location at the convergence of several major tectonic plates makes it highly susceptible to seismic activities.

    Here’s a detailed look at how plate tectonics contribute to Japan’s geographical vulnerability:

    [1] Convergent Plate Boundaries:

    • Pacific Ring of Fire: Japan is located on the Pacific Ring of Fire, an area with a high level of seismic activity due to the presence of numerous tectonic plate boundaries.
    • Plates Involved: The primary tectonic plates interacting near Japan are the Pacific Plate, the Philippine Sea Plate, the Eurasian Plate, and the North American Plate.
    • Subduction Zones: The Pacific and Philippine Sea plates are subducting beneath the Eurasian and North American plates. This subduction process is a significant source of seismic activity, including powerful earthquakes and volcanic eruptions.

    [2] Earthquake Activity:

    • Frequent Earthquakes: The movement of these plates results in frequent earthquakes. Japan experiences thousands of tremors annually, ranging from minor to catastrophic.
    • Major Earthquakes: Historical events like the 2011 Great East Japan Earthquake and the 1995 Great Hanshin Earthquake demonstrate the potential for massive destruction and loss of life due to Japan’s tectonic setting.

    [3] Tsunami Risk:

    • Generation of Tsunamis: Earthquakes occurring under the sea or along the coast can displace large volumes of water, leading to tsunamis. The 2011 tsunami, triggered by a massive undersea earthquake, caused widespread devastation and the Fukushima nuclear disaster.
    • Coastal Impact: Japan’s extensive coastline makes it particularly vulnerable to tsunamis, which can arrive within minutes of an undersea earthquake, leaving little time for evacuation.

    [4] Volcanic Activity:

    • Volcanic Eruptions: The subduction of the Pacific and Philippine Sea plates not only causes earthquakes but also contributes to significant volcanic activity. Magma generated by the melting of the subducted plate rises to the surface, leading to volcanic eruptions.
    • Active Volcanoes: Japan has over 100 active volcanoes, a direct result of its tectonic setting. Eruptions pose risks to nearby populations and can disrupt air travel and local economies.

    [5] Geological Complexity:

    • Intersecting Faults: The interaction of multiple tectonic plates creates a complex network of faults, increasing the unpredictability and variability of seismic events.
    • Diverse Seismic Phenomena: This complexity leads to a range of seismic phenomena, including deep-focus earthquakes, which occur at greater depths and can affect broader areas.

  • Floods and a ‘preventive measure’ that needs review

    Floods and a 'preventive measure' that needs review - The Hindu

    Central idea 

    Dr. Mani Sivasubramanian emphasizes the long-lasting impact of decisions made after Cyclone Michuang in Chennai, particularly regarding electricity cutoffs. The central idea revolves around the need for accountability in decision-making during crises, highlighting the delicate balance between safety measures and potential hazards for vulnerable populations, such as the elderly. The way forward involves a hierarchical approach, periodic reviews, and fixing responsibility for sub-optimal decisions.

    Key Highlights:

    • Dr. Mani Sivasubramanian, a heart surgeon, author, and social entrepreneur, discusses the long-lasting impact of decisions made after Cyclone Michuang in Chennai.
    • Emphasizes the importance of accountability for decisions with visible and hidden consequences.
    • Raises concerns about the practice of prolonged electricity cutoffs after a natural disaster, especially for vulnerable populations like the elderly.

    Key Challenges:

    • Balancing the need for safety measures, such as electricity cutoffs during cyclones, with potential hazards like accidents and security concerns.
    • The complexity of decision-making during a crisis, requiring a dynamic and evolving approach.
    • Striking a balance between conservative choices and potential complications due to inaction.

    monsoon, monsoons, floods, flood evacuation, WHO, WHO India, World Health Organization, COVID-19, flood precautions, COVID appropriate behaviours

    Key Terms:

    • Decision accountability
    • Electricity cutoff
    • Vulnerable populations
    • Dynamic balance
    • Cataclysmic disaster
    • Intellectual and analytical judgment

    Key Phrases for good marks in mains:

    • “Consequences of choices should be accounted for.”
    • “Power disruption poses significant hazards, especially for the elderly.”
    • “Decision-making in a crisis is an extreme test of judgment and personal strength.”
    • “Potential cost of mistakes looms large in a decision-maker’s mind.”

    Key Quotes:

    • “There is no objectively ‘safe’ choice; it is a constantly evolving, dynamic balance.”
    • “A bureaucrat should justify and document decisions in real-time for review.”
    • “Complex decision-making should not become a contest of cheap populism.”

    Key Statements:

    • Decision-makers should justify and document choices in real-time.
    • Accountability is crucial, especially when decisions impact millions.
    • Calls for a hierarchy-based approach in decision-making during crises.

    Key Examples and References:

    • Mentions the 2015 floods in Chennai as a reference to the consequences of decision-making during natural disasters.

    Key Facts:

    • In 2021, Tamil Nadu had 13.8 crore people over the age of 60 years.
    • Chennai metropolitan area’s population is estimated to be over 12 million.

    Key Data:

    • 500,000 people in Chennai are above 60 years old, and over 50,000 are aged 80 or above.

    Critical Analysis:

    • Acknowledges the complexity of decision-making during a natural disaster.
    • Emphasizes the need for a balance between safety measures and potential hazards.
    • Advocates for accountability and periodic reviews of decisions.

    Way Forward:

    • Suggests a hierarchy-based approach with scaled levels of responsibility.
    • Proposes involvement of more than one person in major decision-making.
    • Calls for periodic reviews by an oversight team to challenge and reverse questionable choices.
    • Highlights the importance of fixing responsibility for sub-optimal decisions.

  • What are Polar Stratospheric Clouds (PSCs)?

    Polar Stratospheric Clouds (PSCs)

    Central Idea

    • Residents in the Arctic have witnessed an extraordinary atmospheric display of Polar Stratospheric Clouds (PSCs).

    Polar Stratospheric Clouds (PSCs)

    Details
    Formation and Location Form in the polar stratosphere at altitudes of 15,000–25,000 meters; common over Antarctica and the Arctic.
    Temperature Conditions Require extremely cold temperatures, typically below −78°C (−108°F).
    Types Type I: Composed of water and nitric acid.

    Type II: Made almost entirely of water ice.
    Role in Ozone Depletion Facilitate chemical reactions that produce chlorine and bromine compounds, leading to ozone destruction.
    Appearance Iridescent, shimmering pastel colors, leading to their nickname “nacreous” or “mother-of-pearl” clouds.
    Observation Visible during twilight, illuminated from below by the Sun.
    Research and Monitoring Studied for impact on ozone depletion and climate change; monitored via satellites and ground stations.
    Environmental Concern Linked to human-made chemicals like CFCs; subject to international regulation like the Montreal Protocol.
    Climate Change Connection Research ongoing into how climate change might affect PSCs’ frequency and distribution.
    Discovery and Study History Observed since the 19th century; their role in ozone depletion understood in the 1980s.

  • Volcanic Eruption in Iceland

    Iceland

    Central Idea

    • A volcanic eruption occurred near Iceland’s capital between Sýlingarfell and Hagafell, near the town of Grindavik on the Reykjanes Peninsula.

    Iceland: ‘Land of Fire and Ice’

    • Geographical Location: Iceland is situated just south of the Arctic Circle in the North Atlantic Ocean.
    • Tectonic Setting: The country lies on the Mid-Atlantic Ridge, marking the boundary between the North American and Eurasian tectonic plates.
    • Unique Landscape: Iceland’s landscape features geysers, glaciers, mountains, volcanoes, and lava fields, housing 33 active volcanoes – the highest number in Europe.
    • Historical Settlement: The first human settlement in Iceland dates back to 874 by Norsemen from Scandinavia, leading to the founding of Reykjavik.

    Recent Volcanic Activity on the Reykjanes Peninsula

    • Historical Dormancy: The Reykjanes Peninsula had not experienced volcanic eruptions for 800 years until recently.
    • Recent Eruptions: The current eruption is the fourth in less than three years on the peninsula, indicating a potential new era of volcanic activity.
    • Eyjafjallajokull Eruption: The last major volcanic event in Iceland that gained global attention was the 2010 eruption of Eyjafjallajokull.
    • Eruption Timeline and Impact: The volcano erupted twice in March and April 2010, spreading an ash cloud across continents and disrupting air traffic on the North Atlantic route for six days – the longest disruption since World War II.

  • Opportune moment to rediscover Chennai’s hydrology

    Opportune moment to rediscover Chennai's hydrology - The Hindu

    Central idea 

    The article underscores the recurring floods in Chennai, attributing them to climate change while questioning the extent to which historical human errors and negligence contribute. Emphasizing the need for comprehensive measures, it calls for hydrological mapping, restoration of neglected water bodies, and ecological conservation to achieve flood resilience and sustainable water supply.

    Key Highlights:

    • Climate Change Attribution: Frequent floods in Chennai, attributed to climate change, raise questions about the impact of historical human errors and the effectiveness of conventional wisdom in flood mitigation.
    • Devastating Impact: Neglected irrigation tanks, encroachment on water bodies, and inadequate watershed management contribute to devastating floods, with the 2023 flood considered the worst in 47 years.
    • Need for Comprehensive Measures: The need for comprehensive hydro-elevation mapping, restoration of water bodies, and protection of ecological hotspots is emphasized for flood resilience and sustainable water supply.

    Key Challenges:

    • Historical Neglect: Neglected irrigation tanks and encroachment on water bodies contribute to over 80% runoff, worsening flood impacts.
    • Urban Expansion: Rapid urban expansion in Chennai, without considering ecological hotspots, leads to the loss of water bodies and wetlands.
    • Inadequate Maintenance: Major waterways and drainage systems suffer from heavy encroachments, sludge deposits, and lack of year-long maintenance.

    Key Terms:

    • Hydro-elevation Mapping: Mapping of upstream-downstream watersheds to understand water dynamics and drainage systems.
    • Ecological Hotspots: Areas with high biodiversity and ecological importance, crucial for flood resilience.
    • Storm Water Drain Network: A 2,900-kilometer network designed to manage stormwater runoff in the Greater Chennai Corporation (GCC) area.

    Key Phrases:

    • “Decode Chennai’s urban and peri-urban hydrology”: Emphasizes the need to understand and intervene in the interconnected hydrological conditions of Chennai.
    • “Converting disaster into opportunity”: Encourages turning flood challenges into an opportunity for sustainable water supply.

    Key Quotes:

    • “Are we hiding behind climate change for all the blunders made so far?”: Questions the tendency to attribute all flood-related issues to climate change.
    • “Have we learned any lessons from past flood events?”: Raises concerns about the lack of corrective measures despite repeated floods.

    Key Examples and References:

    • Chennai’s 3,588 irrigation tanks neglected, contributing to high runoff and flood damage.
    • Loss of water bodies and Pallikaranai marsh land due to rapid urban expansion.
    • The 2023 flood considered the worst in 47 years, highlighting the escalating impact of floods.

    Key Statements:

    • “Chennai city and the CMA can be permanently saved from floods”: Encourages a proactive approach to flood resilience through scientific interventions and ecological protection.
    • “Hiding behind climate change for all accumulated blunders”: Challenges the attribution of all flood-related issues to climate change without addressing historical neglect and errors.

    Key Facts:

    • The CMA to be expanded from 1,189 sq.km to 5,904 sq.km as part of Master Plan III, necessitating protection of ecological hotspots.
    • Rapid urban expansion in Chennai cited as one of the fastest in the country.

    Key Data:

    • 4,000 water bodies in the proposed CMA area, requiring protection from encroachments.

    Critical Analysis:

    • Challenges the effectiveness of conventional approaches and calls for a shift towards scientific and meaningful interventions in water management.
    • Emphasizes the need for a balance between urban expansion and ecological conservation for sustainable flood resilience.

    Way Forward:

    • Comprehensive Mapping: Conduct hydro-elevation mapping to understand water dynamics and drainage systems.
    • Restoration and Protection: Restore water bodies to original or increased capacity, protect ecological hotspots, and enforce “no development zones.”
    • Sustainable Urban Planning: Integrate ecological considerations into urban planning to prevent irreversible damage from urban expansion.

  • Places in news: Mount Merapi

    volcano

    Central Idea

    • Mount Merapi in Indonesia has erupted yet again this year, spewing an ash tower 3,000 metres into the sky.

     

    Merapi Volcano: A Brief Overview

    • Location: Situated in Central Java, Indonesia, Merapi is aptly named “Mountain of Fire” in Javanese.
    • Activity: It ranks among the world’s most active and perilous volcanoes, known for frequent and often violent eruptions.
    • 2010 Eruption: The last significant eruption in 2010 led to over 350 fatalities and extensive damage to surrounding areas.
    • Tourist Attraction: Despite its dangers, Merapi attracts hikers and tourists drawn to its beauty and geological significance.

    Other active volcanoes in Indonesia

    volcano

    Indonesia is home to many active volcanoes, with over 120 active volcanoes located across the country. Some of the other major volcanoes in Indonesia include:

    • Mount Krakatoa: Located in the Sunda Strait, it’s notorious for the catastrophic 1883 eruption.
    • Mount Rinjani: On Lombok Island, it’s Indonesia’s second-highest volcano and a trekking hotspot.
    • Mount Tambora: Famous for the 1815 eruption, it caused the “year without summer” and is situated on Sumbawa Island.
    • Mount Batur: In Bali, known for scenic vistas and hot springs.
    • Mount Merbabu: The highest in Central Java, it’s a favored destination for climbers.

    Why so many volcanoes in Indonesia?

    • Pacific Ring of Fire: Indonesia’s location on this seismic hotspot explains its high volcanic activity.
    • Volcanic Density: With over 120 active volcanoes, Indonesia faces frequent eruptions, posing risks to its population and infrastructure.

    Back2Basics: Pacific Ring of Fire

    • Geographical Span: This 40,000 km horseshoe-shaped belt around the Pacific Ocean is a seismic hub.
    • Volcanic and Seismic Activity: Home to 75% of the world’s active volcanoes and 90% of earthquakes.
    • Tectonic Movements: The Pacific Plate’s collision with smaller plates leads to subduction, causing friction and pressure.
    • Resulting Phenomena: This tectonic activity results in frequent volcanic eruptions and earthquakes.
    • Countries Included: The Ring of Fire affects several regions, including Japan, Indonesia, the Philippines, Papua New Guinea, New Zealand, and the Americas’ west coasts.
    • Natural Resources: The region is rich in geothermal energy and minerals.

  • Cyclone Michaung makes landfall

    Central Idea

    • Cyclone Michaung (name suggested by Myanmar) makes landfall in Tamil Nadu and Andhra Pradesh.
    • Michaung is the fourth tropical cyclone over the Bay of Bengal this year.

    About Cyclone Michaung

    • Uncommon Intensity: December cyclones in the North Indian Ocean typically do not reach high intensities. Michaung, with its severe storm classification, is an exception.
    • Upgraded Intensity: Initially predicted as a tropical cyclone, IMD upgraded Michaung to a ‘severe’ storm due to its unexpected intensification.
    • Heat Index Contribution: The intensification is attributed to the above-normal heat index values off the southern Andhra Pradesh coast.

    Indian Tropical Storms: An Overview

    • Annual Cyclones: The North Indian Ocean basin averages about five cyclones per year, predominantly in the Bay of Bengal.
    • Arabian Sea Cyclones: Though less frequent, Arabian Sea cyclones often reach higher intensities and can cause extensive damage.
    • Peak Cyclone Seasons: Cyclones are most common during pre-monsoon (April-June) and post-monsoon (October-December) months, with May and November seeing more intense storms.

    Factors Influencing Storm Intensification

    • Ocean Heat: Cyclones draw energy from warm ocean temperatures, typically around 26 degrees Celsius or higher.
    • Tropical Cyclone Heat Potential (TCHP): This oceanographic parameter is crucial in cyclone genesis and intensification.
    • Complex Atmospheric Conditions: Various atmospheric factors like wind shear, convection, and air-sea interactions also play a role in cyclone development.
    • Coriolis Effect: This effect influences cyclone formation in the northern hemisphere, causing air to move anticlockwise in low-pressure areas.

    Back2Basics: Extratropical and Tropical Cyclones

    • General Definition: Cyclones are large-scale air systems rotating around a low-pressure center, often accompanied by violent storms.
    • Extratropical Cyclones: Found outside the tropics, these cyclones have a cold core and gain energy from interactions between cold and warm air masses. They can form over both land and sea.
    • Tropical Cyclones: These form in tropical regions and are powered by the condensation of water vapor. They lack associated warm or cold fronts and are known as hurricanes or typhoons in different regions.

    Cyclone Naming Process

    • Rotational Basis for Naming: The naming of cyclones is done by countries on a rotational basis, following certain existing guidelines.
    • Responsibilities of RSMCs and TCWCs: Worldwide, there are six regional specialized meteorological centers (RSMCs) and five regional Tropical Cyclone Warning Centers (TCWCs) mandated for issuing advisories and naming of tropical cyclones.
    • IMD’s Role: IMD is one of the six RSMCs providing tropical cyclone and storm surge advisories to 13 member countries under the WMO/Economic and Social Commission for Asia-Pacific (ESCAP) Panel.
    • Naming Authority of IMD: RSMC, New Delhi, is also mandated to name the tropical cyclones developing over the north Indian Ocean, including the Bay of Bengal and the Arabian Sea.
    • Guidelines for Naming: Some rules are to be followed while naming cyclones, such as being neutral to politics, religious beliefs, cultures, and gender, avoiding offensive or cruel names, and keeping the name short and easy to pronounce.
    • Future Naming: After ‘Michaung’, the next cyclone as per India’s suggestion will be named ‘Tej’.