#jet stream upsc

[gopaltarunias]

Exploring the Jet Stream UPSC: A Comprehensive Overview

The UPSC syllabus, particularly in GS Paper I (Geography) and GS Paper III (Environment & Disaster Management), emphasizes understanding atmospheric phenomena impacting weather patterns. Among these, the Jet Stream UPSC plays a crucial role in shaping global weather systems. This article delves into the complexities of the Jet Stream, a crucial concept for UPSC aspirants.

What is the Jet Stream?

The Jet Stream is a narrow band of fast-moving air currents located high in the troposphere (the lowest layer of the atmosphere). These winds travel at speeds exceeding 200 km/h (125 mph) and are concentrated in westerly directions (west to east). The temperature difference between the equator and the poles creates these high-speed winds. Warm air rises near the equator, creating a pressure difference that drives air currents towards the poles. As this air travels, it cools and descends, eventually returning towards the equator. This global circulation pattern, known as the Hadley Cell, creates the Jet Stream UPSC at the upper levels of the troposphere.

Types of Jet Streams:

There are two primary types of Jet Streams:

Polar Jet Stream: The most prominent jet stream, located at around 10-12 km above the Earth's surface, primarily in the Northern and Southern Hemispheres. This jet stream significantly influences mid-latitude weather patterns.

Subtropical Jet Stream: Located at higher altitudes (around 16-18 km) and weaker than the polar jet stream. It can have a significant impact on tropical weather systems.

Impact of Jet Stream on Weather Systems:

The Jet Stream plays a critical role in various weather phenomena:

Mid-Latitude Weather Systems: The meandering nature of the jet stream creates high and low-pressure zones that drive the formation of mid-latitude cyclones and anticyclones. These weather systems influence wind patterns, precipitation, and temperature variations across the globe.

Storm Tracks: The jet stream UPSC steers the movement of storm systems, impacting where they form, intensify, and weaken. Understanding the jet stream helps predict the movement of storms and potential weather events.

Temperature Variations: The jet stream can act as a barrier, separating warm and cold air masses. A stronger jet stream can lead to more extreme temperature variations between polar and tropical regions.

Jet Stream and Climate Change:

Climate change is altering global atmospheric circulation patterns, potentially impacting the behavior of the jet stream. Some studies suggest that a warming climate could lead to a wavier jet stream, resulting in more extreme weather events like heatwaves, droughts, and floods in certain regions.

Importance of Jet Stream for UPSC:

Understanding the Jet Stream for UPSC aspirants is crucial due to its influence on various aspects covered in the syllabus:

Climate Change: The impact of climate change on the jet stream and its link to extreme weather events is a critical area of UPSC focus.

Weather Patterns: Knowledge of the jet stream helps understand the formation and movement of weather systems, impacting regional climate and agriculture.

Disaster Management: Predicting the trajectory of storms and other weather events relies heavily on understanding the behavior of the jet stream.

Conclusion:

The Jet Stream UPSC is a powerful force shaping weather patterns across the globe. Understanding its behavior and how it interacts with climate change is essential for UPSC aspirants aiming to excel in Geography, Environment, and Disaster Management. As research on the jet stream's response to climate change continues, staying updated on this crucial aspect of weather systems will be increasingly important.

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Geography Important Topics for UPSC Exam

Geography is a vital part of the UPSC Civil Services Examination, contributing significantly to both the Prelims and Mains. It encompasses both physical and human geography, requiring a comprehensive understanding of the earth's processes, human activities, and their interrelations. Here’s a detailed guide to the important topics you should focus on for your UPSC preparation.

1. Physical Geography

A. Geomorphology

Earth’s Structure and Interior: Understand the layers of the Earth, seismic waves, and their role in studying the Earth's interior.

Plate Tectonics and Continental Drift: Study the movement of plates, their interactions, and the resultant landforms such as mountains, rift valleys, and oceanic trenches.

Volcanoes and Earthquakes: Types, causes, distribution, and effects. Case studies of significant events.

Weathering and Erosion: Types and processes, and their impact on the landscape.

B. Climatology

Atmosphere: Composition, structure, and functions.

Weather and Climate: Definitions, differences, and factors affecting them.

Heat Budget of the Earth: Incoming and outgoing radiation, greenhouse effect.

Temperature and Pressure Belts: Distribution and impact on global climate.

Winds: Types (planetary, trade, westerlies, local winds), jet streams, and their impact on weather.

Monsoons: Mechanism, theories (Indian monsoon), and significance.

Climate Change: Causes, effects, and global initiatives to combat it.

C. Oceanography

Oceans and Seas: Distribution, the topography of the ocean floor.

Ocean Currents: Types, causes, and their impact on global climate.

Tides and Waves: Causes, types, and effects.

Marine Resources: Types, distribution, and sustainable use.

D. Biogeography

Ecosystems and Biomes: Types, characteristics, and distribution.

Biodiversity: Importance, threats, and conservation efforts.

Soil: Types, formation, and conservation.

2. Human Geography

A. Population and Settlement

Demographic Attributes: Birth rate, death rate, fertility rate, mortality rate, population growth.

Migration: Types, causes, and effects.

Urbanization: Trends, causes, and problems of urban areas.

Rural Settlement: Patterns, types, and problems.

B. Economic Geography

Agriculture: Types, major crops, and agricultural practices in India.

Industry: Types, and distribution of major industries in India and the world.

Resources: Types (renewable, non-renewable), distribution, and sustainable management.

Trade: Patterns and impact on the economy.

C. Cultural Geography

Language: Distribution and linguistic diversity.

Religion: Distribution, major religions, and their impact on culture.

Ethnicity: Ethnic groups and their geographical distribution.

3. Indian Geography

A. Physical Features

Himalayas: Origin, structure, and significance.

Peninsular Plateau: Characteristics, major hills, and rivers.

Coastal Plains and Islands: Features, significance, and economic activities.

Great Indian Desert: Features, climate, and life.

B. River Systems

Himalayan Rivers: Indus, Ganga, Brahmaputra – their courses, tributaries, and significance.

Peninsular Rivers: Narmada, Godavari, Krishna, Cauvery – their courses, tributaries, and significance.

C. Climate

Seasons: Characteristics of Indian seasons (winter, summer, monsoon, post-monsoon).

Monsoons: Mechanism, impact, and regional variations.

Climate Regions: Classification and characteristics.

D. Natural Resources

Mineral Resources: Types, distribution, and economic importance.

Energy Resources: Conventional (coal, oil, natural gas) and non-conventional (solar, wind, hydroelectric) – distribution and utilization.

E. Agriculture and Industry

Agricultural Practices: Types, major crops, Green Revolution, and issues in Indian agriculture.

Industrial Regions: Major industries, their distribution, and significance.

4. Environmental Geography

A. Ecology and Environment

Ecosystems: Structure, function, and types.

Biodiversity: Importance, threats, and conservation.

Environmental Degradation: Causes, effects, and measures.

Sustainable Development: Principles, practices, and global initiatives.

B. Environmental Issues

Pollution: Types (air, water, soil, noise), sources, effects, and control measures.

Climate Change: Causes, effects, and mitigation.

Disaster Management: Types of disasters, vulnerability, risk management, and response.

Study Tips

Understand Concepts: Focus on understanding the core concepts rather than rote memorization.

Use Diagrams: Geography involves a lot of visual learning. Use maps, diagrams, and flowcharts.

Stay Updated: Read newspapers and magazines for current environmental issues and geographical phenomena.

Practice Previous Years' Papers: It helps in understanding the pattern and type of questions asked.

Revise Regularly: Make concise notes and revise them frequently.

Conclusion

Geography for UPSC requires a balanced approach to both physical and human geography. A clear understanding of concepts, regular practice, and staying updated with current events will ensure a thorough preparation. 

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What are Jet Streams?

What are Jet Streams?

Jet streams are winds that blow horizontally from west to east at a high speed near the tropopause and the stratosphere. These are high-speed winds that influence the weather and climatic conditions of the region over which they blow. There are two types of jet streams that blow at a tropical belt of 300 north latitudes—the westerly jet stream and the easterly jet stream.A branch of the Westerly…

[sushantjaisy]

Polar Vortex: National Atlas and Thematic Mapping Organisation Notes for UPSC

The circumpolar or circumpolar vortex is a vast ring of frigid, spinning air that encircles both of the Earth’s poles. Other rotating, low-obliquity planetary bodies also have polar vortices. The term circumpolar can be used to describe two distinct phenomena: the stratospheric one and the tropospheric one.n

This article will give you the right information about the polar vortex so that you can prepare your UPSC notes. Read the full article and jot down all the bullet points so that you can look at it while revision. Get the details about the polar vortex UPSC for your precise UPSC preparation. Let’s do the UPSC online preparation with the best knowledge.

Also Read: AMPHEX 2023 UPSC: AMPHEX 2023 Exercise for UPSC Notes

Polar Vortex: Understand the Meaning

A huge area of low pressure and frigid air surrounds both of the Earth’s poles, forming the circumpolar. It is ALWAYS present at the poles, but becomes weaker in the summer and stronger in the winter. The name “vortex” refers to the counter-clockwise airflow that helps keep colder air away from the poles.

The circumpolar expands frequently in the northern hemisphere throughout the winter, pushing frigid air southward with the jet stream. This happens frequently during the winter and is frequently linked to significant breakouts of Arctic air in the United States.

To read more, click here.

[sarkariworkins]

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Joint Employment Test (JET) Examination for secretarial positions is done by the JET Examining Body. This test is directed across India by JET Board. Experts in particular JET projects and other helpful subtleties we have given underneath. Candidates can likewise download these review materials from our site. This educational program can assist up-and-comers with accomplishing great outcomes in their tests.

The authority notice from the JET Clerk Officer Exam Recruitment has been delivered. The JET test will take the authority online JET test in May 2020. The JET test is a public enlistment process intended to enlist intrigued competitors. the most effective method to apply, pay, significant dates in Sarkari Work.

Stream's representative quantitative abilities educational plan incorporates all numerical statements and computations like number juggling and information understanding. Aside from the real and general information questions asked in this test.

Here we give total data about the worker blend of representatives for work tests, test projects and test models. Notwithstanding complete information on this appropriateness, test models, educational program, breaks from the earlier year and compensation are required. The composed test will be a goal question.

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1.Geo morphology

Recent trends:

Land form

Topography

Uniformitarianism

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The Atmosphere

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Elements of climate and Factors affecting them

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Factors Influencing Temperature

Perception

3.Indian Physiography and Land Resources

Northern and North-eastern Mountain

Northern Plain

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Jet streams,energy sources of cyclone, temperate and temperate cyclones, cloudbursts

geomorphology: glacial land-forms, erosional land-forms, caves,

heat budget of the earth

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Types of Jet Streams

Types of Jet Streams

Jet streams are winds that blow horizontally from west to east at a high speed near the tropopause and the stratosphere. These are high-speed winds that influence the weather and climatic conditions of the region over which they blow. There are two types of jet streams Types of Jet Streams There are two types of jet streams that blow at a tropical belt of 300 north latitudes — the westerly jet…