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  • First GSI Survey of the Siachen

    siachen

    Central Idea

    • NJ 9842 vs. 5Q 131 05 084: Exploring India-Pakistan’s last demarcated point and the Siachen glacier’s assigned number by the Geological Survey of India (GSI).
    • Lack of recognition: Despite the historical importance, the first Siachen survey remains overlooked by scholars and mountaineers.

    About Siachen

    • Location: Siachen Glacier is located in the eastern Karakoram range in the Himalayas, just northeast of the point where the Line of Control between India and Pakistan ends.
    • Significance: As the second-longest glacier in the world’s non-polar areas, Siachen Glacier stretches for 76 km, holding historical and strategic importance.

    Geographical and Political Context

    • Border dispute: Both India and Pakistan claim sovereignty over the entire Siachen region, leading to intermittent conflict since 1984.
    • Military presence: The region houses the highest battleground on Earth, with permanent military outposts at altitudes above 6,000 m (20,000 ft).
    • International recognition: Efforts to establish a transboundary peace park and nominate the region for the World Heritage List have been made.

    Why discuss Siachen?

    • Human casualties: Harsh weather conditions have claimed more lives than combat, with both India and Pakistan sustaining significant losses.
    • Failed demilitarization attempts: Despite the desire to disengage from the costly military outposts, the lack of official recognition of the current line of control has hindered progress.
    • Mountaineering expeditions and awareness: Limited expeditions have been allowed to showcase the dominance of Indian troops and raise awareness about the region.

    The First Siachen Survey

    • V.K. Raina’s leadership: In June 1958, V.K. Raina, an Indian geologist, conducted the inaugural Siachen survey.
    • Unforeseen conflict: The peaceful region surveyed in 1958 became a disputed area between India and Pakistan, leading to Operation Meghdoot in 1984.

    Geologists’ Himalayan Exploration

    • Previous expeditions: Raina’s involvement in the Saser Kangri expedition and the geological survey of the Leh-Manali Highway.
    • International Geophysical Year: The significance of 1958 as a year of geological studies worldwide.
    • GSI’s limited resources: GSI’s plan to study the Himalayan glacier systems, assigning Raina the responsibility of surveying five glaciers in Ladakh.

    Raina’s Journey and Findings

    • Expedition details: Raina’s team’s journey from Calcutta to Siachen, traveling by train, bus, and foot.
    • Glacier characteristics: Raina’s observations of the Siachen glacier, including the appearance of ice caves and the Nubra River’s flow.
    • Survey procedures: Mapping the snout region, establishing reference points, and capturing photographs for future analysis.

    Pakistan’s Response

    • No objections raised: Despite the expedition’s significance and publicity, Pakistan did not lodge any protests or objections against India’s presence on the glacier during the survey.
    • Reasons for indifference: The lack of objections can be attributed to the mutual demarcation under the Karachi ceasefire agreement and the absence of perceived threats or intentions of occupation.

    Challenging Pakistan’s Claims

    • Significance of the expedition: The 1958 GSI survey holds immense historical and geostrategic importance as it contradicts Pakistan’s early claims to the Siachen glacier.
    • Pakistan’s delayed claim: It was only 25 years later, in 1983, that Pakistan formally extended the Line of Control, staking its claim to the region, violating the Simla Agreement.
    • India’s response: India pre-empted Pakistan’s actions by occupying the strategic Saltoro Heights in April 1984, in response to Pakistan’s attempts to claim the Siachen glacier.

    Conclusion

    • Debunking myths: The survey establishes India’s early presence on the glacier and counters Pakistan’s claims.
    • Understanding the geostrategic implications: The survey’s role in shaping subsequent events in the Siachen conflict is vital to comprehend the significance of this expedition.

  • Monsoon havoc in India: How floods can be a valuable resource

    floods

    What is the news?

    • The monsoon season in India this year brought about unprecedented changes, with Mumbai and New Delhi experiencing the onset of rains on the same day after a gap of 61 years.

    ” Floods are acts of God but flood losses are largely acts of man”

    Central idea

    • The events of heavy rainfall and subsequent flooding are occurring in various parts of India leading to significant loss of lives, damage to land, and financial losses. This highlighting the inadequacy of India’s hydro-infrastructure for effective flood management and calls for a shift in mindset towards conserving flood flows as a valuable resource

    Floods in India: A recurring challenge

    • Frequency: India experiences floods on a recurring basis, with at least one major flood event occurring each year. This indicates that floods are not isolated incidents but rather a consistent challenge.
    • Loss of Lives: Floods in India lead to the loss of lives, with an average of 1,600 lives being lost annually, according to the National Disaster Management Authority. The loss of human lives highlights the severity and recurring nature of the flood challenge.
    • Damage to Land: Floods affect a significant area of land in India, impacting approximately 75 lakh hectares. This demonstrates the recurrent impact of floods on agricultural land, leading to crop damage and agricultural losses.
    • Financial Losses: Floods in India cause substantial financial losses, with damages estimated at Rs 1,805 crore. These losses encompass damages to crops, houses, and public utilities, further highlighting the recurring challenge and the need for effective management strategies.

    Flood management measures

    Structural Measures:

    • Storage Reservoirs: These reservoirs are constructed to store excess water during high-flow periods and release it gradually, reducing flood peaks. They also serve as a water source for irrigation, electricity generation, and other purposes.
    • Embankments: These structures, also known as levees, act as barriers to prevent floodwaters from encroaching on vulnerable areas such as agricultural lands, cities, and industries.
    • Diversions: This measure involves redirecting excess water away from heavily populated or susceptible areas to less vulnerable regions, helping to minimize the impact of flooding.

    Non-Structural Measures:

    • Flood Forecasting and Warning Systems: These systems use data analysis, weather monitoring, and hydrological modeling to provide advance warnings about potential flood events. They enable timely evacuation of people and movable assets, reducing the risk to life and property.
    • Flood Plain Zoning: This measure involves regulating the use of floodplains by restricting human activities and developments in flood-prone areas. By delineating zones based on flood risk, it helps minimize vulnerability and losses associated with floods.

    How floods can be a valuable resource?

    • Water Storage: Floods can serve as a valuable resource for water storage. By conserving and capturing floodwaters, the excess water can be stored in reservoirs or other storage facilities. This stored water can then be used for various purposes during dry periods, including irrigation, drinking water supply, and industrial needs.
    • Drought Mitigation: Conserving flood flows can help mitigate the impact of droughts. By storing excess floodwaters, the saved water can be utilized to partially address water scarcity during drought periods, providing relief to agriculture, communities, and ecosystems that rely on water availability.
    • Groundwater Recharge: Floods contribute to the replenishment of groundwater aquifers. The infiltration of floodwaters into the soil helps recharge underground water reserves, ensuring a sustained supply of groundwater for various uses even after the flood event subsides.
    • Ecological Benefits: Floods support ecosystems and promote biodiversity. The article mentions that floods bring essential nutrients, sediments, and organic matter to wetlands and riverine habitats, which nourish the ecosystems and support diverse flora and fauna.
    • Hydropower Generation: Controlled release of floodwaters can be harnessed for hydropower generation. By utilizing the energy of flowing water, floods can be a valuable resource for producing renewable energy through hydropower projects

    Why India needs to upgrade its hydro-infrastructure?

    • Inadequate Infrastructure: India’s hydro-infrastructure is currently inadequate for effective flood management. The existing infrastructure, such as storage reservoirs, embankments, and diversions, is not sufficient to address the challenges posed by floods.
    • Insufficient Storage Space: The storage space created in major river basins, such as the Ganga and the Brahmaputra, is inadequate for the available flows. This indicates a need to enhance storage capacity to effectively manage floodwaters and maximize their utilization.
    • Managing Variabilities: With changing rainfall patterns and intensities due to climate change, the variability of water flows in rivers will increase. Upgrading the hydro-infrastructure is seen as crucial to effectively manage these increasing variabilities and address the resulting challenges of floods and droughts.
    • Conservation of Flood Flows: The potential value of conserving flood flows for drought mitigation. Upgrading the hydro-infrastructure would enable the conservation of unutilized flood flows, which can then be stored and utilized during dry periods to partially mitigate droughts.
    • Water Security and Resilience: Upgrading the hydro-infrastructure is important for ensuring water security and resilience. It allows for improved water management, including storage, distribution, and utilization, which can reduce dependence on erratic monsoon patterns and enhance the country’s ability to cope with water-related challenges.
    • Environmental Considerations: An upgraded hydro-infrastructure should incorporate environmental considerations. This includes preserving ecological flows, minimizing disruptions to ecosystems, and promoting sustainable water management practices.

    Way forward: Towards comprehensive flood management

    • Shift in Focus: Shifting attention and efforts from flood control to flood management. This involves adopting a comprehensive approach that encompasses structural and non-structural measures, as well as integrating environmental considerations.
    • Upgrading Hydro-Infrastructure: Upgrading the existing hydro-infrastructure includes increasing storage capacity, improving embankments, and constructing new reservoirs. Upgrades should address the inadequacies of the current infrastructure and consider the potential for conserving flood flows.
    • Conserving Flood Flows: By safely storing and utilizing excess floodwaters, damages caused by floods can be reduced, and the saved water can be utilized to partially mitigate droughts. This requires the development of storage facilities and infrastructure to capture and store floodwaters during high-flow periods.
    • Integrated Approach: There is need for an integrated approach to flood management. This involves combining structural measures with non-structural measures such as flood forecasting, warning systems, and floodplain zoning. Integration should also consider environmental considerations and the preservation of ecological flows.
    • Learning from International Experiences: Learning from international experiences in flood management. This includes evaluating the performance of flood control measures, studying integrated approaches, and understanding how other countries have balanced flood management objectives with environmental concerns.
    • Community Engagement and Awareness: Raising awareness about flood risks, promoting community preparedness, and involving local communities in early warning systems and evacuation plans.
    • Policy and Governance: There is need for robust policies and governance mechanisms to support comprehensive flood management. This includes incorporating climate change adaptation strategies, promoting multi-stakeholder collaboration, and ensuring environmental safeguards.
    • Investment and Resource Allocation: Allocating adequate resources and funding for flood management initiatives. This involves securing financial support for infrastructure upgrades, research and development, capacity building, and community resilience programs.

    Conclusion

    • It is imperative for India to recognize flood flows as a valuable resource and implement measures that conserve water for subsequent use and water security. By adopting a comprehensive approach, upgrading hydro-infrastructure, and leveraging a mix of structural and non-structural measures, India can effectively mitigate the impacts of floods while ensuring sustainable water management for the future.

    Also read:

    The lesson from a monsoon-battered North India: Time to be prepared

  • 14th Jul 23 | Prelims Daily with Previous Year Questions

    [WpProQuiz 1420]

    [WpProQuiz_toplist 1420]

    UPSC 2023 countdown has begun! Get your personal guidance plan now! (Click here)

  • What is Bastille Day?

    bastille

    Central idea

    • The National Day of France, also known as Bastille Day, is celebrated on July 14 every year.
    • Known as La Fete Nationale or Le 14 Juillet in French, the day is celebrated with fireworks and a parade.
    • One of the most important days in the history of France, it marks the fall of the Bastille, a military fortress and political prison, then considered a symbol of the monarchy and armoury.

    French Revolution: A quick recap

    • The French Revolution, which occurred between 1789 and 1799, was a significant period of social and political upheaval in France.
    • The revolution was characterized by a period of radical social and political change, which saw the-
    1. Overthrow of the French monarchy
    2. Establishment of a republic, and
    3. Execution (Guillotine) of thousands of people, including King Louis XVI and Queen Marie Antoinette

    Fall of the Bastille

    • Symbolism and Discontent: The Bastille, located in Paris, represented the autocratic rule and abuse of power by the monarchy.
    • Rising Unrest: Dissatisfaction with King Louis XVI’s leadership grew, and on July 14, 1789, Parisians gathered at the Bastille.
    • Demands and Confrontation: The crowd demanded the release of political prisoners and access to the fortress’s weapons. The Governor refused, leading to a violent clash.
    • Storming of the Bastille: After hours of fighting, the fortress fell as the people of Paris overwhelmed its defenders.

     

    Do you know?

    During the French Revolution, Queen Marie Antoinette reportedly said, “Let them eat cake” when told that the French people were starving and had no bread to eat.

    The remark was seen as a symbol of the queen’s aloofness and disregard for the plight of the common people, and it helped fuel resentment towards the monarchy.

    This statement alone sparked fury among the French masses leading to the mighty French Revolution.

    Significance of the Event

    • Symbol of Triumph: The fall of the Bastille symbolized the people’s victory over the monarchy and the end of the oppressive old regime.
    • Catalyst for Change: This event sparked a period of intense violence and upheaval, paving the way for the revolutionaries to seize power and establish a new order.
    • Socio-political Transformations: The French Revolution led to the abolition of feudalism, the Declaration of the Rights of Man and Citizen, and the establishment of the First French Republic.
    • Ideological Influence: The revolutionary principles of liberty, equality, and fraternity have left a lasting impact on global political and social movements.

    Global Importance of the Event

    • Inspiring Other Nations: The fall of the Bastille became an inspiration for other nations to fight for their own rights and freedom.
    • Spreading Revolutionary Ideals: The French Revolution’s principles resonated globally, influencing subsequent revolutionary movements throughout history.
    • Rise of Democracy: The revolution’s emphasis on individual rights, democratic governance, and social equality has significantly shaped the political and social landscape worldwide.

    Try this question from CS Mains 2019:

    Explain how the foundation of the modern world was laid by the American and French Revolutions.

    Post your answers here.

     

  • Unbreakable Ethics (GS 4) PYQ: 14 Days Challenge

    Unbreakable Ethics (GS 4) PYQ: 14 Days Challenge

    Start 14 Days Mains PYQ Challenge
    Start 14 Days Mains PYQ Challenge

  • The lesson from a monsoon-battered North India: Time to be prepared

    monsoon

    What is the news?

    • Last weekend, parts of North India witnessed heavy rains that triggered flash floods and left a trail of destruction, tragically it resulted in at least 50 reported deaths. Himachal Pradesh was the worst affected. Several places in Haryana, Punjab and Himachal Pradesh reported record rainfall.

    Central idea

    • Last weekend, North India faced a calamity as torrential rains triggered flash floods and wreaked havoc across the region. Understanding the factors that led to this catastrophe is crucial in developing effective strategies to mitigate the impact of such extreme weather events in the future.

    Fundamental characteristics of monsoon rainfall in the region

    • Concentrated Timeframe: Monsoon rainfall in the region is not evenly distributed throughout the year. Instead, it occurs within a specific timeframe. All the seasonal rainfall (about 80-100 cm) falls within 130-150 hours, which is a relatively short period.
    • Heavy Rain Contribution: The heavy rains play a significant role in contributing to the overall seasonal precipitation. Half of the seasonal rainfall (40-50 cm) occurs in only 30-40 hours.
    • Runoff: When heavy rains occur, most of the rainwater drains away as runoff, particularly when the soil is already wet. This indicates that a substantial amount of rainfall does not get absorbed into the ground but flows off as surface runoff.

    Factors attributed to the Heavy Downpour in north India

    • Active Monsoon and Moisture Influx: An active monsoon season with strong winds in the lower air layers brought in moisture from the Bay of Bengal and the Arabian Sea. These moisture-laden winds contributed to the heavy rainfall in the region.
    • Atmospheric Forcing and Eastward Moving Troughs: Large-scale atmospheric forcing, in the form of outflows in the upper layers of the atmosphere, moved eastward through mid-latitude troughs. These troughs directed the flow of moisture towards the Himalayan region, exacerbating the intensity of the rainfall.
    • Orographic Uplift and Steep Terrain: The steep terrain of the Himalayas, combined with orographic uplift, played a significant role in intensifying the precipitation. When air masses encounter the mountains, they are forced to rise, resulting in enhanced rainfall.
    • Synoptic Conditions and Moisture Intrusion: The synoptic conditions during the period were conducive to heavy rainfall. The monsoon was active, with strong moist easterly winds entering the region. Additionally, there was moisture intrusion from the North Arabian Sea, further augmenting the rainfall.

    Increasing Trend of Extreme Rainfall

    • Tripled Number of Extreme Rainfall Events: Recent studies indicate that the number of extreme rainfall events, defined as rainfall exceeding 15 cm in 24 hours, has tripled in many parts of the country.
    • Prolonged Duration of Rainstorms: The duration of rainstorms has also tripled, indicating that rainfall events are lasting longer, potentially leading to higher rainfall accumulation.
    • Decreased Number of Rainy Days and Hours: The total number of rainy days and hours during the monsoon season has decreased. This means that when it does rain, it tends to be in the form of heavy downpours rather than spread out over more frequent but lighter rainfall events.
    • Regional Variation: Central India has been particularly affected by the increasing trend of extreme rainfall events, with a significant rise in both frequency and intensity.
    • Himalayan Region Prone to Extreme Rainfall: The Himalayan region, with its complex topography and varied weather patterns, is prone to extreme rainfall events. Studies indicate that 65 percent of areas in the region show a positive trend in the frequency of daily rainfall extremes.

    Impact of Arctic Warming on Monsoon Climate

    • Increased Frequency of Blocking Highs and Mid-latitude Troughs: Arctic warming has been observed to influence the monsoon climate through changes in mid-latitude circulation. As the Arctic warms and sea ice recedes, there is growing evidence of an increased frequency of blocking highs and deep mid-latitude troughs. These atmospheric patterns can affect weather systems and contribute to extreme rainfall events during the monsoon season.
    • Influence on Circulation Patterns: Observations and models suggest that Arctic warming can alter circulation patterns, including the movement of air masses, pressure systems, and wind patterns. These changes can have cascading effects on the monsoon climate, including the transport of moisture and atmospheric conditions that contribute to heavy rainfall events.
    • Impact on Monsoon Dynamics: The warming of the Arctic and subsequent changes in circulation patterns can affect the dynamics of the monsoon. This can lead to shifts in moisture inflow, atmospheric stability, and the timing and intensity of rainfall during the monsoon season.
    • Potential for Future Changes: As Arctic warming continues; it is expected that the impacts on the monsoon climate will persist and potentially intensify. This suggests that the influence of Arctic warming on the monsoon may contribute to further changes in extreme precipitation patterns and associated impacts in the future.

    Way forward: Mitigation Strategies for Flooding

    • Robust Early Warning System: Implement a comprehensive early warning system that utilizes meteorological observations, including Doppler weather radar and high-resolution numerical weather prediction models. Advanced technologies like artificial intelligence and machine learning can aid in interpreting the data, enhancing the accuracy and timeliness of alerts.
    • Continuous Monitoring and Flood Warning Systems: Continuously monitor rainfall patterns, river levels, and deploy an advanced flood warning system. This integrated approach allows for timely response and evacuation plans to safeguard vulnerable communities.
    • Flood Risk Maps: Develop flood risk maps incorporating topography, historical flood data, and hydrological modeling. These maps can identify high-risk zones and guide targeted actions to enhance preparedness and resilience.
    • Climate-Resilient Infrastructure: Improve and maintain climate-resilient infrastructure, including robust drainage systems and channels, to prevent waterlogging and minimize flood damage.
    • Land Use Planning and Zoning Regulations: Implement effective land use planning and zoning regulations, designating flash flood-prone areas as non-residential or restricted zones to mitigate potential risks.
    • Protection and Restoration of Natural Ecosystems: Prioritize the protection and restoration of natural ecosystems such as forests and wetlands. These natural buffers can absorb rainfall and reduce runoff, mitigating the intensity of floods.
    • Public Awareness Campaigns: Conduct widespread awareness campaigns to educate individuals on flood response and preparedness. Encourage actions such as evacuation planning, first aid knowledge, and reliance on credible sources of information during emergencies

    Conclusion

    • Recognizing the escalating threat of extreme precipitation events and implementing proactive measures are pivotal in improving India’s resilience to climate-induced disasters. Building resilience is crucial to safeguarding vulnerable communities and ensuring a sustainable future for the nation.

    Also read:

    [Burning issue] Urban Floods in India

  • Species in news: Atlantic Menhaden

    atlantic

    Central Idea

    • Researchers have discovered that the population of ospreys, a fish-eating bird, is facing a decline due to the decreasing numbers of Atlantic menhaden, their primary food source.
    • The depletion of menhaden, a small silvery fish, is attributed to commercial fishing practices.
    • The decline in osprey reproduction reflects the broader ecological impact of reduced menhaden numbers.

    About Atlantic Menhaden

    • Atlantic menhaden, scientifically known as Brevoortia tyrannus, is a species of fish belonging to the Clupeidae family.
    • They are commonly found along the Atlantic coast of North America, ranging from Florida to Nova Scotia.
    • Atlantic menhaden play a vital ecological role and have significant commercial and ecological importance.

    Importance of Atlantic Menhaden

    • Role in Coastal Ecosystem: Menhaden play a crucial role in the ecology of coastal waters along the Eastern Seaboard, providing sustenance for larger fish, marine mammals, and birds.
    • Nutrient-Rich and Filtering Capacity: Menhaden are nutrient-rich, containing omega-3 fatty acids, and they filter substantial quantities of ocean water while consuming smaller organisms like plankton.

    Commercial Fishing Impact

    • Increased Catch Allowance: The Atlantic States Marine Fisheries Commission raised the allowable catch of menhaden to 233,550 metric tons for the next two years, a 20% increase from previous years.
    • Fishery Quota: The commission maintained a quota of 51,000 metric tons for the Chesapeake Bay’s reduction fishery, where menhaden are used for bait and fish products.
    • Ecological Concerns: Critics argue that the removal of significant menhaden quantities is degrading the ecosystem, negatively affecting species like ospreys and striped bass that rely on menhaden.

    Low Reproductive Numbers and Menhaden Depletion

    • In mid-June, researchers found only three young ospreys out of 84 nests checked in Mobjack Bay, part of the Chesapeake Bay.
    • Scientists at the College of William & Mary, monitoring the local osprey population for over 50 years, recorded the lowest reproductive number.
    • The decline in breeding success is attributed to the depletion of Atlantic menhaden, the osprey’s primary food source.

    Lawsuit and Ecosystem Protection

    • Recreational Fishermen Lawsuit: A group of recreational fishermen from Maryland sued the Virginia Marine Resources Commission, claiming it contributed to the menhaden decline by endorsing quotas that harm fish populations and the recreational fishing industry.
    • Commercial Fishing Practices: Critics highlight the negative impact of industrial techniques used by companies like Omega Protein, which catch menhaden in unsustainable quantities, contributing to the decline of other species and damaging ecosystems.
    • Restoring Menhaden Stocks: Non-profit organizations advocate for rebuilding menhaden populations along the Atlantic and Gulf of Mexico coasts to maintain a balanced ecosystem.

    Positive Signs beyond Chesapeake Bay

    • Menhaden Recovery: Outside the Chesapeake Bay, menhaden populations have increased since the Atlantic commission took measures to address overfishing in 2012, leading to a recovery of the fish population within two years.
    • Ecological Impact: The recovery of menhaden populations has brought back various predators such as humpback whales, tuna, sharks, and bald eagles off the coasts of New York and New Jersey.

     

  • Urban Deluge due to rising Yamuna Level in Delhi

    yamuna flood

    Central Idea

    • The Yamuna River in Delhi is experiencing it’s highest-ever water levels, causing concerns and necessitating emergency actions.
    • Heavy rainfall in northwest India, including the Yamuna basin states, and increased water release from the upstream Hathnikund Barrage in Haryana are contributing to the unprecedented water levels.

    Unprecedented Water Levels and Emergency Response

    • Delhi’s Yamuna River is currently flowing at the highest-ever recorded level in the city.
    • Delhi CM has written to Union Home Minister, requesting controlled water release from the Hathnikund Barrage to manage the situation.
    • The water release from the barrage, typically around 352 cusecs during non-monsoon months, reached a peak of 3.59 lakh cusecs due to heavy rainfall in northwest India.

    Importance of Water Release

    • Impact of Upstream Water Release: The water level in the Yamuna River in Delhi is determined by the release of water upstream from the Hathnikund Barrage.
    • Regulation of Water Flow: The barrage acts as a regulator and can only control the amount of water released downstream and to canals.
    • Flooding Concerns: Failure to release water from the upstream can lead to increased flooding in areas upstream, including Haryana.

    Potential Consequences of Water Accumulation

    • Increased Flooding: Failure to regulate the water levels in the Yamuna River can result in severe flooding in Delhi and surrounding areas.
    • Infrastructure Damage: High water levels pose a risk to infrastructure, including roads, buildings, and public utilities.
    • Displacement of Residents: Excessive flooding can force people to evacuate their homes, leading to displacement and potential humanitarian challenges.

    Addressing the Emergency

    • Controlled Water Release: Controlled water release from the Hathnikund Barrage can mitigate the flooding risks.
    • Collaboration and Coordination: Cooperation between Delhi and Haryana authorities, as well as with central government agencies, is essential to manage the situation effectively.
    • Monitoring and Emergency Preparedness: Continuous monitoring of water levels, timely communication, and preparedness to handle any evacuation or relief efforts are crucial during this emergency situation.

    Conclusion

    • The unprecedented water levels in the Yamuna River in Delhi demand immediate attention and coordinated efforts to prevent further damage and protect affected communities.

    Also read:

    [Sansad TV] Perspective: Urban Deluge (Floods)

  • Poverty’s Impact on Brain Development

    poverty brain

    Introduction

    • In 1844, Frederich Engels observed that poor living conditions had physical effects on the poor, manifesting in various health issues.
    • Neuroscientists in the 1960s discovered that growing up in poverty could hinder brain development in rats.
    • Recent studies have shown a correlation between low-income families and lower cortical volume, poor academic performance, and smaller hippocampus in human children.

    The Link between Poverty and Brain Development

    • Poverty’s Effect on the Brain: Poverty has been found to affect brain development in children and young adults.
    • Cortex and Academic Performance: Studies in 2015 revealed that children from low-income families had lower cortical volume and performed poorly in academic tests.
    • Importance of the Hippocampus: Another study in 2015 highlighted the correlation between family socioeconomic status and the volume of the hippocampus, a key region for learning and memory.

    New Study on Anti-Poverty Policies and Hippocampus Size

    • The Study: Researchers from Harvard University and Washington University conducted a study published in May 2023 in the journal Nature Communication.
    • Data: The study analyzed brain scans of over 10,000 children aged 9-11 from 17 U.S. states with varying costs of living and anti-poverty programs.
    • Findings: Children from low-income families had a smaller hippocampus, but generous anti-poverty policies significantly reduced this risk.
    • State-Level Public Policies: The study highlights the potential of state-level public policies to address the correlation between brain development and low income.

    Implications for Children’s Health and Well-being

    • Psychological Impact: Impaired hippocampal development is associated with a higher risk of mental health issues such as major depressive disorder and post-traumatic stress disorder.
    • Internalizing and Externalizing Psychopathologies: The study found a negative association between family income and the incidence of internalizing and externalizing psychopathologies in children.
    • Impact of Anti-Poverty Policies: Generous cash benefits were associated with larger hippocampal volumes and reduced internalizing problems in low-income households.

    Considerations and Limitations

    • Systemic Discrimination: Poverty is often a result of systematic discrimination, such as racial disparities.
    • Alternative Explanations: The study aimed to rule out alternative explanations, including racial and ethnic factors, but acknowledges the need for further investigation.
    • Applicability to Other Contexts: The study’s findings may not directly apply to other countries like India, given different macroeconomic conditions.

    Role of Welfare and Policy

    • Financial Resources and Stressors: Access to more financial resources can help shield families from chronic stressors associated with low income, potentially influencing hippocampal development.
    • Generous Anti-Poverty Policies: Such policies not only increase family income but also enable families to make decisions that reduce stress, such as working fewer hours.
    • Investing in Social Safety Net Programs: Investments in social safety net programs can mitigate socioeconomic disparities in neurodevelopment, addressing mental health, education, and economic challenges.

    Conclusion

    • Longitudinal Study: The researchers will continue studying the mental health and brain development trajectories of the study’s participants to examine the influence of policy changes.
    • Importance of Social Safety Net Programs: The study underscores the significance of investing in social safety net programs to address the consequences of socioeconomic disparities in brain development.

  • Counting down: Launch of Chandrayaan-3 Mission

    chandrayaan

    Central Idea

    • The Indian Space Research Organisation (ISRO) is set to launch the Chandrayaan 3 mission on July 14 from the Satish Dhawan Space Centre, Sriharikota.
    • This mission follows the Chandrayaan 2, which encountered technical issues and crash-landed on the moon in September 2019.

    Chandrayaan-3: Mission Details and Landing

    • Launch Vehicle: Chandrayaan 3 will be launched aboard the Geosynchronous Satellite Launch Vehicle Mark III (GSLV Mk III) rocket.
    • Landing Site: The spacecraft is expected to land near the moon’s South Pole.
    • Operational Duration: Chandrayaan 3 will operate on the lunar surface for one lunar day, equivalent to 14 Earth days.

    Significance of the Lunar South Pole

    • Scientific Interest: The lunar South Pole is a compelling location due to the presence of towering massifs and permanently shadowed craters that may contain volatile compounds and water-ice deposits.
    • Planetary Formation Insights: Studying the South Pole-Aitken Basin’s age and impact melt could provide insights into planetary formation.
    • Valuable Resource: Volatile deposits at the South Pole could serve as a valuable resource for future exploration and astrobiology investigations.
    • Solar Power Potential: Some mountain peaks near the pole receive extended periods of sunlight, making them potential sites for continuous solar power supply.
    • Fossil Record: Craters at the South Pole may contain a fossil record of the early Solar System, providing valuable scientific data.

    Choosing the South Pole over the North Pole

    • Permanent Darkness: The larger shadowy region at the lunar South Pole, which remains in permanent darkness, makes it suitable for studying unilluminated areas.
    • Aitken Basin Edge: The South Pole is located at the edge of the Aitken Basin, the largest impact basin in the Solar System.
    • Lunar Reconnaissance Orbiter: NASA’s Lunar Reconnaissance Orbiter collects data over the South Pole region, enhancing the scientific understanding of the area.
    • Longer Lunar Day-Night Cycle: The Moon’s longer rotation cycle (around 30 days) results in extended periods of day and night, making the South Pole more accessible.

    Trajectory and Landing Procedure

    • Similar to Chandrayaan 2: Chandrayaan 3 will follow a trajectory similar to Chandrayaan 2, utilizing a propulsion module to orbit Earth before heading to the moon.
    • Lunar Orbit and Landing: Once within the moon’s gravitational pull, the module will lower itself to a 100 x 100 km circular orbit. The lander will then detach and descend to the lunar surface.

    Scientific Payloads

    • The Lander: The lander, named ‘Vikram,’ will deploy four scientific payloads to study the moon’s surface temperature and subterranean characteristics.
    • The Rover: The rover, named ‘Pragyan,’ will conduct chemical and visual tests as it roves around the lunar surface.

    Objectives of Chandrayaan 3

    • Safe Landing Demonstration: Chandrayaan 3 aims to demonstrate safe and soft landing on the lunar surface.
    • Rover Roving Capability: The mission will showcase the capability of the rover to traverse the lunar surface.
    • In-situ Scientific Experiments: Chandrayaan 3 will conduct in-situ scientific experiments on the moon.

    Development and Delay

    • Development Phase: The development phase for Chandrayaan 3 began in January 2020, with scientists and engineers working on the spacecraft’s design and assembly.
    • Manufacturing Delays: The COVID-19 pandemic caused delays in the manufacturing and testing of the propulsion systems.
    • Launch Schedule: The launch, initially planned for early 2021, was postponed due to the pandemic. The spacecraft is now set to launch in July 2023.

    Importance of Chandrayaan 3

    • India’s Third Lunar Mission: Chandrayaan 3 is India’s third lunar mission and the second attempt at a soft landing on the moon.
    • Renewed Interest in Lunar Exploration: In recent years, there has been a renewed interest in exploring the moon following Chandrayaan-1’s discovery of water on the lunar surface.

    Conclusion

    • Chandrayaan 3 represents India’s continuous efforts to explore the moon and achieve a soft landing.
    • The mission’s success will contribute to scientific advancements and further our understanding of the lunar surface.
    • As space agencies around the world plan future lunar missions, humanity’s return to the moon seems imminent after more than five decades.

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