Saturday 31 August 2024

Why Cyclones Rarely Form in August in India ? cylclone asna in news


Cyclone Asna is rare for a number of reasons, including: 

1) Land-born origin
Cyclone Asna originated over land in Rajasthan, which is unusual for cyclones that typically originate in the ocean. 
2) August formation
Cyclone Asna formed in August, which is rare for the Arabian Sea, where cyclones are less common during this month. 
3) Monsoon season
Cyclones rarely intensify into cyclones during the June-September monsoon season due to strong monsoon currents and other ocean factors. 
4) Number of cyclones in the Arabian Sea
Cyclone Asna is only the fourth cyclone to develop in the Arabian Sea in August since 1944.

Cyclone formation in the Arabian Sea is rare in August due to a combination of factors related to atmospheric and oceanic conditions. Here's why:

1. Monsoon Season Influence
Southwest Monsoon Dominance: August falls in the middle of the Southwest Monsoon season (June to September) in the Indian subcontinent. During this period, the strong monsoon winds and associated weather systems dominate the Arabian Sea, which discourages the development of cyclones. The monsoon trough (a low-pressure area extending across the region) stabilizes the atmosphere, reducing the chances of cyclone formation.
2. High Wind Shear
Strong Vertical Wind Shear: Wind shear refers to the change in wind speed and direction with height. During the monsoon season, the Arabian Sea experiences high vertical wind shear, which disrupts the vertical structure of a developing cyclone. Cyclones require low wind shear to organize and intensify, but the strong monsoon winds create conditions unfavorable for cyclogenesis (cyclone formation).
3. Sea Surface Temperatures (SST)
Cooling Due to Monsoon Winds: The strong monsoon winds cause upwelling (the rise of cooler water from the deep sea) and mixing of the sea surface, which leads to lower sea surface temperatures (SSTs). Cyclones need warm SSTs (typically above 26.5°C) to gain energy. The cooler SSTs during August reduce the potential for cyclogenesis.
4. Moisture Availability
High Moisture Content but Misaligned: While the monsoon brings a lot of moisture to the region, it is often not concentrated in a way that supports cyclone development. The widespread rainfall and cloud cover associated with the monsoon spread the moisture over a large area, which dilutes the potential energy needed for cyclone formation.
5. Position of the Intertropical Convergence Zone (ITCZ)
ITCZ Shift: The Intertropical Convergence Zone (ITCZ), a key factor in tropical cyclone formation, shifts northwards during the monsoon season. This shift means that the conditions necessary for cyclone formation are not usually present over the Arabian Sea during August.
Due to these factors, cyclones are more likely to form in the Arabian Sea during the pre-monsoon (May-June) and post-monsoon (October-November) periods when the atmospheric and oceanic conditions are more favorable.

Iran's Scorching 82 2°C Heat Index



HEAT INDEX AND ITS IMPACT RECORDED THE 82.2 HEAT INDEX IN IRAN

The Heat Index, often referred to as the "apparent temperature" or "feels-like temperature," is a measure of how hot it actually feels to the human body when relative humidity is combined with the actual air temperature. It accounts for the fact that the body’s ability to cool itself through perspiration is impaired when humidity is high, making it feel hotter than the actual air temperature.

How the Heat Index Works:

  • Temperature: The actual air temperature is the baseline. As the temperature rises, the body naturally feels hotter.

  • Relative Humidity: This is the amount of moisture in the air expressed as a percentage. When humidity is high, sweat does not evaporate as quickly from the skin, which is the body's natural cooling mechanism. This slow evaporation makes it feel hotter.

Calculation of the Heat Index:

The Heat Index is calculated using a complex formula that takes both the air temperature and relative humidity into account. Here’s a simplified idea of how it works:

  • Higher Temperatures + High Humidity: The heat index rises sharply when both temperature and humidity are high, making it feel much hotter than the actual temperature.

  • Higher Temperatures + Low Humidity: If the air is dry, the heat index will be closer to the actual air temperature because sweat evaporates more easily, allowing the body to cool itself effectively.

Example:

  • An air temperature of 90°F (32°C) with 50% relative humidity can result in a heat index of around 95°F (35°C). This means it would feel like 95°F instead of the actual 90°F.

Health Implications:

The Heat Index is important because it helps assess the risk of heat-related illnesses such as heat exhaustion or heat stroke. As the heat index rises, the risk of these conditions increases, particularly for vulnerable populations such as the elderly, young children, and those with preexisting health conditions.

Heat Index Chart:

The National Weather Service (NWS) and other meteorological agencies often provide Heat Index charts or tables, where you can look up the heat index based on the current air temperature and relative humidity.

  • Heat Index 80°F - 90°F: Caution; fatigue is possible with prolonged exposure and activity.
  • Heat Index 90°F - 103°F: Extreme caution; heat cramps and heat exhaustion are possible.
  • Heat Index 103°F - 124°F: Danger; heat cramps and heat exhaustion are likely, and heat stroke is possible.
  • Heat Index 125°F and Above: Extreme danger; heat stroke is highly likely.

Conclusion:

The Heat Index is a critical tool for understanding how hot it really feels outside, helping people take necessary precautions to avoid heat-related health issues. It’s especially important during summer months or in regions with high humidity.


 Iranian coastal town recorded the highest heat index on 28th August 2024 =82.2degree Celsius heat index:


—the Dayrestan Airport (Iran)weather station recorded a temperature of 38.8°C at 10.30am on August 28.

Viewed alone, the temperature isn’t as alarming. But, with a relative humidity of 85%, it combines to give the HI, or “feels like” temperature, of 82.2°C.


— High heat index means the body unable to evaporate the precipitate. Therefore, heat buildup in the body causing heat stroke and heat related complications when heat index value is above 50 degrees.

—- if absolute air temperature is around 35 degrees and relative humidity of 80% then heat index will be 53 degrees that is not tolerable. Here, in Iranian coastal airport temperature =38.8degree Celsius with 85% relative humidity leads to heat index reaches to 82.2 degrees. Highly scorching heat build up causing the heat related hazards.


—- dry/ arid climate with high temperatures is bearable due to evaporation of sweat from the body that regulates body internal temperature and body feels comfortable and cooling internally. 


—- dew point is the temperature when air unable to hold more moisture or water vapours as it has reached to saturation level.


—- due to climate changes and global warming the impact on air temperature produces the heat waves, droughts and floods. Moisture holding capacity increases with warmer air ie., 1 degree temperature increase leads to increase in moisture level by 7%.

HEAT INDEX AND ITS IMPACT RECORDED THE 82.2 HEAT INDEX IN IRAN

The Heat Index, often referred to as the "apparent temperature" or "feels-like temperature," is a measure of how hot it actually feels to the human body when relative humidity is combined with the actual air temperature. It accounts for the fact that the body’s ability to cool itself through perspiration is impaired when humidity is high, making it feel hotter than the actual air temperature.

How the Heat Index Works:

  • Temperature: The actual air temperature is the baseline. As the temperature rises, the body naturally feels hotter.

  • Relative Humidity: This is the amount of moisture in the air expressed as a percentage. When humidity is high, sweat does not evaporate as quickly from the skin, which is the body's natural cooling mechanism. This slow evaporation makes it feel hotter.

Calculation of the Heat Index:

The Heat Index is calculated using a complex formula that takes both the air temperature and relative humidity into account. Here’s a simplified idea of how it works:

  • Higher Temperatures + High Humidity: The heat index rises sharply when both temperature and humidity are high, making it feel much hotter than the actual temperature.

  • Higher Temperatures + Low Humidity: If the air is dry, the heat index will be closer to the actual air temperature because sweat evaporates more easily, allowing the body to cool itself effectively.

Example:

  • An air temperature of 90°F (32°C) with 50% relative humidity can result in a heat index of around 95°F (35°C). This means it would feel like 95°F instead of the actual 90°F.

Health Implications:

The Heat Index is important because it helps assess the risk of heat-related illnesses such as heat exhaustion or heat stroke. As the heat index rises, the risk of these conditions increases, particularly for vulnerable populations such as the elderly, young children, and those with preexisting health conditions.

Heat Index Chart:

The National Weather Service (NWS) and other meteorological agencies often provide Heat Index charts or tables, where you can look up the heat index based on the current air temperature and relative humidity.

  • Heat Index 80°F - 90°F: Caution; fatigue is possible with prolonged exposure and activity.
  • Heat Index 90°F - 103°F: Extreme caution; heat cramps and heat exhaustion are possible.
  • Heat Index 103°F - 124°F: Danger; heat cramps and heat exhaustion are likely, and heat stroke is possible.
  • Heat Index 125°F and Above: Extreme danger; heat stroke is highly likely.

Conclusion:

The Heat Index is a critical tool for understanding how hot it really feels outside, helping people take necessary precautions to avoid heat-related health issues. It’s especially important during summer months or in regions with high humidity.


 Iranian coastal town recorded the highest heat index on 28th August 2024 =82.2degree Celsius heat index:


—the Dayrestan Airport (Iran)weather station recorded a temperature of 38.8°C at 10.30am on August 28.

Viewed alone, the temperature isn’t as alarming. But, with a relative humidity of 85%, it combines to give the HI, or “feels like” temperature, of 82.2°C.


— High heat index means the body unable to evaporate the precipitate. Therefore, heat buildup in the body causing heat stroke and heat related complications when heat index value is above 50 degrees.

—- if absolute air temperature is around 35 degrees and relative humidity of 80% then heat index will be 53 degrees that is not tolerable. Here, in Iranian coastal airport temperature =38.8degree Celsius with 85% relative humidity leads to heat index reaches to 82.2 degrees. Highly scorching heat build up causing the heat related hazards.


—- dry/ arid climate with high temperatures is bearable due to evaporation of sweat from the body that regulates body internal temperature and body feels comfortable and cooling internally. 


—- dew point is the temperature when air unable to hold more moisture or water vapours as it has reached to saturation level.


—- due to climate changes and global warming the impact on air temperature produces the heat waves, droughts and floods. Moisture holding capacity increases with warmer air ie., 1 degree temperature increase leads to increase in moisture level by 7%.

Thursday 29 August 2024

India's Semiconductor Industry


SEMICONDUCTOR INDUSTRY IN INDIA

Context : 

In June, 2023, the Union Cabinet had approved the proposal of Micron for setting up a semiconductor unit in Sanand, Gujarat.

Construction of this unit is progressing at a rapid pace and a robust semiconductor ecosystem is emerging near the unit.

The approved three semiconductor units are:

1. Semiconductor Fab with 50,000 wfsm capacity:

Tata Electronics Private Limited (“TEPL”) will set up a semiconductor fab in partnership with Powerchip Semiconductor Manufacturing Corp (PSMC), Taiwan.

Investment: This fab will be constructed in Dholera, Gujarat. Investment in this fab will be Rs.91,000 crore.

Technology partner: PSMC is renowned for its expertise in logic and memory foundry segments. PSMC has 6 semiconductor foundries in Taiwan.

Capacity: 50,000 wafer starts per month (WSPM)  

 

Segments covered:

  • High performance compute chips with 28 nm technology

  • Power management chips for electric vehicles (EV), telecom, defence, automotive, consumer electronics, display, power electronics, etc. Power management chips are high voltage, high current applications.

2. Semiconductor ATMP unit in Assam:

Tata Semiconductor Assembly and Test Pvt Ltd (“TSAT”) will set up a semiconductor unit in Morigaon, Assam.

Investment: This unit will be set up with an investment of Rs.27,000 crore.

Technology: TSAT semiconductor is developing indigenous advanced semiconductor packaging technologies including flip chip and ISIP (integrated system in package) technologies.

Capacity: 48 million per day

Segments covered: Automotive, electric vehicles, consumer electronics, telecom, mobile phones, etc.

 

3.   Semiconductor ATMP unit for specialized chips:

CG Power, in partnership with Renesas Electronics Corporation, Japan and Stars Microelectronics, Thailand will set up a semiconductor unit in Sanand, Gujarat.

Investment: This unit will be set up with an investment of Rs.7,600 crore.

Technology partner: Renesas is a leading semiconductor company focussed on specialised chips. It operates 12 semiconductor facilities and is an important player in microcontrollers, analog, power, and System on Chip (‘SoC)’ products.

Segments covered: The CG power semiconductor unit will manufacture chips for consumer, industrial, automotive and power applications.

Capacity: 15 million per day

Strategic importance of these units:

  • Within a very short time, India Semiconductor Mission has achieved four big successes. With these units, the semiconductor ecosystem will get established in India.

  • India already has deep capabilities in chip design. With these units, our country will develop capabilities in chip fabrication.

  • Advanced packaging technologies will be indigenously developed in India with today’s announcement.

Employment potential:

  • These units will generate direct employment of 20 thousand advanced technology jobs and about 60 thousand indirect jobs.

  • These units will accelerate employment creation in downstream automotive, electronics manufacturing, telecom manufacturing, industrial manufacturing, and other semiconductor consuming industries.


India’s semiconductor industry started in the 1980s with semiconductor corporations limited to a PSU established at Mohali, Punjab and DRDO & ISRO’s fab lab for their own needs. Later on this industry progressed slowly as it depends on cheaper imports from china, taiwan, singapore, hong kong and south korea. In this lecture we will be discussing the semiconductor industry potential and challenges in India.


What is Semiconductor?

  • It is a material product usually composed of silicon, which conducts electricity more than an insulator, such as glass, but less than a pure conductor, such as copper or aluminium. 

  • Semiconductors are critical technological components for emerging technologies viz. artificial intelligence (AI) and internet of things applications, 5G communications, cloud computing, automation, electric vehicles, with a wide coverage of applications from basic consumable electronic gadgets and automobiles to areas of strategic operations.

Semiconductor chips 

  • It is an electric circuit with many components such as transistors and wiring formed on a semiconductor wafer. 

    • These semiconductor chips are the drivers for ICT development and one of the key reasons for the current flattening of the world.

  • Semiconductor chips are the lifeblood of the modern information age. 

  • They enable electronic products to compute and control actions that simplify lives. 

  • The manufacturing cycle of a semiconductor chip from sand to a finished product, sees it change hands approximately 70 times across international borders.

  • Concentrated Areas 

  • The semiconductor is the cornerstone of all electronic products. However, the semiconductor manufacturing capacities are concentrated in a few geographies.

    • Nearly all leading edge (sub 10nm) semiconductor manufacturing capacity is limited to Taiwan and South Korea, with nearly 92 per cent located in the former. 

  • Further, 75 percent of the semiconductor manufacturing capacity is concentrated in East Asia and China. 


Opportunities for India 

  • India’s consumption of semiconductors is expected to cross $80 billion by 2026 and is expected to reach $110 billion by 2030.

    • India has xceptional semiconductor design talent pool, accounting for up to 20% of the world's semiconductor design engineers.

  • The current decade presents a unique opportunity to India. Companies are looking to diversify their supply chain and for alternatives to their bases in China. 

  • The establishment of the value chain for semiconductors would ensure a multiplier effect on the entire economy. 

  • The semiconductor manufacturing and testing bases are heavily concentrated in East Asia, the Act East policy provides an opportunity to connect and strengthen ties with key players in the region. 

Challenges /Issues 

  • Huge requirement of Investment 

    • Multi billions of dollars are needed to set up a fab manufacturing unit.

      • The conversion of raw water to water of ultrahigh purity is thus a significant and costly activity for all semiconductor fabs. 

  • Water and Electrical supply

    • Semiconductor manufacturing consumes large quantities of water for a variety of purposes ranging from equipment cooling to wafer surface cleaning. 

  • Technological competitiveness 

    • The making of a semiconductor chip involves some technological skill .

  • Inadequate logistics and absence of proper waste

  •  Inadequate logistics and absence of proper waste disposal have further exacerbated the poor state of its production. 

  • Uninterrupted quality electricity supplies.

  •  Covid-19 

    • The trigger point was the beginning of the Covid-19 pandemic and the subsequent lockdowns across the world that forced shut crucial chip-making facilities in countries including Japan, South Korea, China and the US.

    • The chip shortages due to Covid-19 have hit automakers with a revenue loss of $110 bn in 2021. 

  • Russia-Ukraine conflict 

    • The Russia-Ukraine conflict and its implications for raw material supplies for the semiconductor value chain has also poised chipmakers to invest in strengthening the semicon supply chain.

Initiatives  taken by india 

  • Semicon India programme

    • It provides $10 bn fiscal support and other non-fiscal measures 

      • The Semicon India Program aims to provide attractive incentive support to companies / consortia that are engaged in Silicon Semiconductor Fabs, Display Fabs, Compound Semiconductors / Silicon Photonics / Sensors (including MEMS) Fabs, Semiconductor Packaging (ATMP / OSAT) and Semiconductor Design.

  • India Semiconductor Mission:

    • It has been set up as an Independent Business Division within Digital India Corporation having administrative and financial autonomy to formulate and drive India’s long term strategies for developing semiconductors and display manufacturing facilities and semiconductor design ecosystem. 

  • Production Linked Incentive scheme

    • The government also recently announced the PLI and DLI schemes as major steps towards building a semiconductor ecosystem in the country..

  • The recent Cabinet approval with an outlay of  Rupees 76,000 crore spread over a period of six years for the development of semiconductors and display manufacturing ecosystem is expected to be a shot in the arm. 

    • This move claims to attract rupees 1.7 lakh crore private investment in India.

    • Under the modified program, a uniform fiscal support of 50 percent of project cost shall be provided across all technology nodes for setting up of semiconductor fabs. Given the niche technology and nature of compound semiconductors and advanced packaging, the modified program shall also provide fiscal support of 50 percent of capital expenditure in pari-passu mode for setting up of compound semiconductors / silicon photonics / sensors / discrete semiconductors fabs and ATMP/OSAT.

Conclusion and Way Forward 

  •  Semicon diplomacy

    •  India must seize opportunity and become an attractive alternative destination for semiconductor manufacturing.

    • The way ahead is conceptualizing a semicon diplomacy action plan.

      • Semicon diplomacy is pivotal to India’s Act East Policy, which aims to build resilient ties in the Asia Pacific region. 

      • It can be leveraged by increasing multilateral and bilateral cooperation and Quad has immense potential in this regard.

  • Development of Policies 

    • The semiconductor value chain is interrelated and linked with several industries, governments must develop policies that address all the crucial characteristics in the long run. 

Government policies should also focus on assuring and securing access to foreign technology suppliers through trade and foreign policy to ensure a global level of collaboration.


Wednesday 21 August 2024

Earn Green Credits for Eco Friendly Actions #globalwarming #UPSC #MAINS


Green credit program 

Green credits are certificates awarded to individuals and entities for undertaking environment-friendly activities. The Green Credit Program (GCP) was launched in October 2023 as a market-based mechanism to encourage voluntary actions for environmental conservation. The program aims to incentivize individuals, organizations, and companies to invest in sectors 


The GCP aims to generate tradable green credits for these activities. The Administrator determines the formula for calculating green credits based on the equivalent use of resources, size, scope, and other relevant factors required to achieve the intended environmental result. The Administrator also creates and manages a trading platform where green credits can be bought and sold.


Aim : to incentivise eco friendly activities a market based system develops.


The environment ministry has identified eight select activities under the the environment (protection) act, 1986 for which green credit can be earned such as :

  1. tree plantation 

  2. Water conservation 

  3. Water harvesting / water use efficiency

  4. Promoting natural and regenerative agricultural practices 

  5. Waste management 

  6. Air pollution reduction 

  7. Mangrove conservation and restoration in 

  8. Ecomark based green credit and construction of buildings and other infrastructure using sustainable technology and materials.


MoEFCC notified the draft Green Credit Programme implementation rules 2023. Under this individuals, industries , farmers producers organisations (FPO), urban local bodies, gram panchayats and private sectors will be earning green credits for undertaking environment friendly actions.


The green credits will be tradable in the domestic market platform.


However, the entities will also be made to pay environmental compensation for violations of the provisions contained in the notifications. The compensation will be collected in a separate account utilized for market stabilization and other activities to implement green credits schemes.


Who will be governing the green credits scheme ? 


A steering committee headed by the environment secretary will govern the implementation of GCP, the committee will approve procedures for institutionalizing the GCP, approves its rules and regulations and make recommendations to government for issuance of green credit certificates 


The Indian council of forestry research and education will be the administrator of GCP and will manage, monitor and operate the entire programme. It will register the green credits and maintain the records of transactions. The technical committee will decide the value of green credits to be awarded, I FRE will issue guidelines for the establishment of trading platforms 


Outcomes of the GCP

  • Enhance India's forest and tree cover.

  • Build an inventory of degraded land suitable for plantation.

  • Encourage pro-planet actions by rewarding green credits.

Impact of GCR on Indian Forests:

  • States must afforest land to compensate for diverted forests, under the 2023 amendment.

  • GCR allows green credits to meet compensatory afforestation (CA) obligations, focusing only on plantations.

  • GCR promotes tree planting on degraded lands, including unique ecosystems, labeled as wastelands.

Problems with the GCR

  • GCR lacks emphasis on planting diverse native species and involves industry in raising plantations.

  • It signals a return to a revenue-centric vision for India's forests, undermining decades of conservation efforts.

  • The GCRs fail to mention local communities or their rights over forests, which the Forest Rights Act (FRA) guarantees. The 2022 Rules of the FCA eliminated the need for consent from the Gram Sabha for forest diversion.

  • Misleading Criteria and Misclassification:

    • Canopy closure {Open canopies (densities <40%) or Scrub (<10%)} is used as the sole indicator of ecological worth, misclassifying many non-forest ecosystems.

    • Ecosystems like grasslands and deserts are misclassified as degraded lands needing afforestation.

    • Grasslands and deserts support a high density of mammals and 500 million livestock and are also important for below-ground carbon sequestration.

  • Tree-covered Wastelands

    • Open Natural Ecosystems (ONEs) are often labelled as wastelands, making them prone to tree planting.

    • ONEs envelop sand dunes, grasslands and thorn scrub of the Thar, and the savanna grasslands and open woody savannas of Madhya Pradesh, Maharashtra, and Gujarat.

    • Planting trees on these lands could harm their unique biodiversity and ecosystem services.

  • Questionable Forest Cover and Afforestation

  • India's reported forest cover includes orchards, parks, and plantations.

  • Studies suggest plantations do not provide the same ecosystem services as natural forests.

  • Regrowing natural forests is more effective for carbon sequestration and biodiversity.

  • Compensatory Afforestation (CA) Track Record

    • CA programs suffer from poor survival rates and a lack of local community involvement despite the availability of more than 50,000 crores.

    • Almost 60% of the CA funds remain unspent.

    • Plantations often fail to simulate natural forests and address the drivers of degradation.


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