• 9964432222
  • Mail Us
  • Appointment
  • Locate Us
  • Chat Now
  • Courses
  • Login
  • Register
Manifest IAS
JournalsOfIndia
Advertisement
  • Home
  • SNIPPETSfor Prelims
  • ARTICLESfor Mains
  • BROWSEBY SOURCE
  • DOWNLOADS
No Result
View All Result
  • Home
  • SNIPPETSfor Prelims
  • ARTICLESfor Mains
  • BROWSEBY SOURCE
  • DOWNLOADS
No Result
View All Result
JournalsOfIndia
No Result
View All Result
Home Geography

Cloud seeding

April 4, 2020
in Environment, Geography
Reading Time: 2 mins read
0
530
VIEWS
Share on WhatsAppShare on TelegramShare on Facebook
image_pdfMake PDF

Why in news?

The three-month-long cloud seeding project aimed at augmenting rainfall in North Karnataka was launched.

What is cloud seeding?

  • Cloud seeding is a way to artificially tweak rain.
  • The technology sprays particles of salts like silver iodide and chloride on clouds using a special aircraft, rockets or from dispersion devices located on the ground.
  • The most common chemicals used for cloud seeding include silver iodide, potassium iodide and dry ice (solid carbon dioxide) and Liquid propane.
  • These salt particles act as a core (cloud condensation nuclei or ice-nucleating particles) which draw water vapour within the cloud towards them.
  • The moisture latches on, condensing into water droplets leading to the formation of raindrops.
  • The goal of cloud seeding is to alter the natural development of the cloud to enhance precipitation, suppress hail, dissipate fog or reduce lightning.

History of cloud seeding:

  • Rainmaking has its roots in 1946 when American scientists Vincent Schaefer and Bernard Vonnegu at General Electric (GE) successfully seeded a cloud with dry ice and got the world’s first artificial snowfall.
  • Tata firms also took stabs at cloud seeding in the Western Ghats region in 1951 using ground-based silver iodide generators.
  • In 1952, late climatologist K. Banerji, the first Indian director-general of Indian Meteorological Department (IMD) experimented with cloud seeding with salt and silver iodide through hydrogen-filled balloons released from the ground.
  • The Rain and Cloud Physics Research (RCPR) unit of Indian Institute of Tropical Meteorology (IITM) in Pune carried out randomized warm cloud modification experiments through salt seeding during 1957-1966 in north India.
  • Over the next three decades, India experimented in this direction in Maharashtra, Karnataka and Uttar Pradesh.
  • Research on cloud seeding in India received a boost since 2018 with the Union Ministry of Earth Sciences investing in data collection and experiments.

Cloud seeding methods:

  • Static cloud seeding: It involves spreading a chemical like silver iodide into clouds. The silver iodide provides a crystal around which moisture can condense.
  • Dynamic cloud seeding: It aims to boost vertical air currents, which encourages more water to pass through the clouds, translating into more rain. Up to 100 times more ice crystals are used in dynamic cloud seeding than in the static method.
  • Hygroscopic cloud seeding: It disperses salts through flares or explosives in the lower portions of clouds. The salts grow in size as water joins with them.

 

image_pdfMake PDF
Tags: Prelims

Related Posts

World Forestry Congress, 2022

World Forestry Congress, 2022

May 19, 2022
Himalayan Bird Count(HBC)

Himalayan Bird Count(HBC)

May 19, 2022
Urban Heat Islands

Urban Heat Islands

May 18, 2022
Ramgarh Vishdhari Sanctuary

Ramgarh Vishdhari Sanctuary

May 17, 2022
NGWA Global Multi-hub challenge

NGWA Global Multi-hub challenge

May 16, 2022
Amalthea moon

Amalthea moon

May 16, 2022
Discovery of Madtsoiidae snake fossil in Ladakh Himalaya

Discovery of Madtsoiidae snake fossil in Ladakh Himalaya

May 14, 2022
COP15 of the United Nations Convention to Combat Desertification (UNCCD) conference

COP15 of the United Nations Convention to Combat Desertification (UNCCD) conference

May 13, 2022
Amrit Sarovar Mission

Amrit Sarovar Mission

May 13, 2022
Marsquake

Marsquake

May 12, 2022
Please login to join discussion

Our Offline Classroom Student

PRELIMS 2021 POLITY QUESTIONS ANALYSED

https://youtu.be/5q8hBcRGhAs

PRELIMS 2021 HISTORY QUESTIONS ANALYSED

https://youtu.be/v0SIZ7SUybg

CONGRATULATIONS TO 2020 TOPPERS !!!

Rank 25 Vaibhav Rawat 

Rank 218 Kankanala Rahul Reddy
Rank 385 Sagar A Wadi
Rank 504 Malashree MV
Rank 573 Shridevi B V
Rank 707 Mamatha G

COURSES OFFERED

PRELIMS SURESHOTS

May 2022
MTWTFSS
 1
2345678
9101112131415
16171819202122
23242526272829
3031 
« Apr    

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
  • Sports
  • Uncategorized

Browse by Tags

AIR BBC Business Standard CNN Deccan Herald DownToEarth Down to Earth DTE Economic Times ET GS-1 GS-2 GS-3 GS-4 Hindustan Times IE India & the world Indian express India today Indiatoday Kurukshetra LiveMint Mains News News Paper Newspaper PIB PIB & The Hindu pre Prelims PRS India RSTV Science Reporter Survey The Hindu The Hindustan Times The India Express The Indian Express The New Indian Express Times of India TOI TOPPERS UNDP website Wikipedia 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
  • Sports
  • Uncategorized

Browse by Tag

AIR BBC Business Standard CNN Deccan Herald DownToEarth Down to Earth DTE Economic Times ET GS-1 GS-2 GS-3 GS-4 Hindustan Times IE India & the world Indian express India today Indiatoday Kurukshetra LiveMint Mains News News Paper Newspaper PIB PIB & The Hindu pre Prelims PRS India RSTV Science Reporter Survey The Hindu The Hindustan Times The India Express The Indian Express The New Indian Express Times of India TOI TOPPERS UNDP website Wikipedia 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
  • SNIPPETS
  • ARTICLES
  • BROWSE
  • DOWNLOADS
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