• 9964432222
  • Mail Us
  • Appointment
  • Locate Us
  • Chat Now
  • Courses
  • Login
  • Register
Manifest IAS
JournalsOfIndia
Advertisement
  • Home
  • Economy
  • Foreign Affairs
  • Science & Tech
  • Environment
  • Law & Policy
  • History
No Result
View All Result
  • Home
  • Economy
  • Foreign Affairs
  • Science & Tech
  • Environment
  • Law & Policy
  • History
No Result
View All Result
  • 9964432222
  • Mail Us
  • Appointment
  • Locate Us
  • Chat Now
  • Courses
JournalsOfIndia
No Result
View All Result
Home Geography

Aerosols led to increased incidents of high rainfall in Himalayan foothills

December 11, 2020
in Geography, Environment
Reading Time: 2min read
0
Aerosols led to increased incidents of high rainfall in Himalayan foothills
0
SHARES
65
VIEWS
Share on TelegramShare on Facebook

In news

A new study finds that Aerosols in Indo-Gangetic Plain have led to increased incidents of high rainfall in the Himalayan foothills

What are the findings of the study?

  • Scientists have found that aerosols like black carbon and dust, which makes the Indo-Gangetic Plain one of the most polluted regions of the world, have led to increased incidents of high rainfall events in the foothills of the Himalayan Region.
  • A team of researchers included 
    • National Institute of Technology Rourkela
    • Leipzig Institute for Meteorology (LIM), University of Leipzig, Germany
    • Indian Institute of Technology Madras
    • Indian Institute of Technology Kanpur 
  • The team was supported by the Department of Science & Technology, Government of India under DST Climate Change program have highlighted the crucial role of the aerosol direct radiative effect on high precipitation events over the Himalayan region. 
  • They showed that particulate emissions can alter the physical and dynamical properties of cloud systems and, in turn, amplify rainfall events over orographic regions downwind of highly polluted urban areas.
  • The study used 17 years (2001–2017) of rainfall rate, aerosol measurement called aerosol optical depth (AOD)
  • It also included meteorological reanalysis fields such as pressure, temperature, and moisture content at different altitudes are used to compute the thermodynamic variable “moist static energy” and outgoing long-wave radiation from Indian region to investigate high precipitation events on the foothills of the Himalayas. 
  • The team found clear associations between high precipitation events, high aerosol loading, and high moist static energy (MSE) values (Moist static energy of an air mass includes the potential energy due to its height above the ground and the latent heat due to its moisture content). 
  • The findings also highlight the crucial role of the radiative effect of aerosol on high precipitation events over the Himalayan region.

Why  Indo-Gangetic Plain to study the impact of aerosol?

The region is associated with high aerosol loading, much of which is black carbon and dust, and thus provides an opportunity for studying how aerosol affects extreme rainfall events, particularly when air mass is forced from a low elevation to a higher elevation as it moves over rising terrain technically called orographic forcing.

What is aerosol optical depth(AOD)?

  • Aerosol optical depth is a measure of the extinction of the solar beam by dust and haze. In other words, particles in the atmosphere (dust, smoke, pollution) can block sunlight by absorbing or by scattering light.
  • AOD tells us how much direct sunlight is prevented from reaching the ground by these aerosol particles
Source: PIB
Tags: Prelims

Related Posts

International Solar Alliance (ISA)

International Solar Alliance (ISA)

January 18, 2021
Action Plan Improving Air Quality

Action Plan Improving Air Quality

January 18, 2021
Microbial Decomposer Capsule

Microbial Decomposer Capsule

January 18, 2021
Taj Trapezium Zone (TTZ)

Taj Trapezium Zone (TTZ)

January 18, 2021
Pakistan permits hunting Houbara Bustard

Pakistan permits hunting Houbara Bustard

January 16, 2021
World Migration Report 2020

World Migration Report 2020

January 16, 2021
Natural Capital Accounting and Valuation of Ecosystem Services (NCAVES)

Natural Capital Accounting and Valuation of Ecosystem Services (NCAVES)

January 15, 2021
Dzukou Valley wildfire

Dzukou Valley wildfire

January 13, 2021
Khadi Prakritik Paint: India’s first cow dung paint

Khadi Prakritik Paint: India’s first cow dung paint

January 13, 2021
Fire safety in India

Fire safety in India

January 13, 2021
Please login to join discussion

Browse by Category

  • Agriculture
  • Disaster Management
  • Economy
  • Environment
  • Ethics
  • Foreign Affairs
  • Geography
  • Governance
  • History
  • Law & Policy
  • Opinion
  • People in News
  • Places in News
  • Science & Tech
  • Security
  • Society

Browse by Tags

AIR Big Picture GS-1 GS-2 GS-3 GS-4 Kurukshetra Mains News Paper PIB Prelims RSTV Yojana
JournalsOfIndia

Our vision is to orient the readers to grasp the facts objectively and analyse critically. In the rush of reaching first to the readers, the websites miss the balanced opinion, which is the need of the hour. We aim to reach the readers with more crispness, preciseness and relevance. We bring the articles in UPSC way for the civil services aspirants and the Wisest Way for general readers.

Categories

  • Agriculture
  • Disaster Management
  • Economy
  • Environment
  • Ethics
  • Foreign Affairs
  • Geography
  • Governance
  • History
  • Law & Policy
  • Opinion
  • People in News
  • Places in News
  • Science & Tech
  • Security
  • Society

Browse by Tag

AIR Big Picture GS-1 GS-2 GS-3 GS-4 Kurukshetra Mains News Paper PIB Prelims RSTV Yojana

Newsletter

The most important UPSC news and events of the day.

Get Journals daily newsletter on your inbox.

© 2020 JournalsOfIndia - A free initiative by Manifest Team.

  • Login
  • Sign Up
  • Home
  • Prelims Snippets
  • Mains Articles
  • Economy
  • Society
  • Foreign Affairs
  • Science & Tech
  • Environment
  • Agriculture
  • History
  • Law & Policy
  • Security
  • Course Portal
  • Prelims Test Portal
No Result
View All Result

© 2020 JournalsOfIndia - A free initiative by Manifest Team.

Welcome Back!

Login to your account below

Forgotten Password? Sign Up

Create New Account!

Fill the forms bellow to register

All fields are required. Log In

Retrieve your password

Please enter your username or email address to reset your password.

Log In