×

UPSC Courses

DNA banner

DAILY NEWS ANALYSIS

  • 19 June, 2020

  • 4 Min Read

Anti-cyclone in North-east Asia

Role of Anti-cyclone in North-east Asia

New research has revealed a link between an increase in extreme summer heat events in Northeast Asia and the role of anticyclones in the region. Extreme heat events have increased across the world and are responsible for a large number of deaths and harming crops and livestock as well.

Nearly half of the magnitude of the 2018 extreme heat event across China and Japan was caused by anomalous anticyclones in Northeast Asia.

There are mainly 2 factors which make the extreme heat events more likely to occur over Northeast Asia.

  • Dynamic (anticyclone) and thermodynamic (mean temperature shifts to warmer states and increasing greenhouse gases) changes in the atmosphere.
  • Anticyclones similar to those in 2018 became more common and worse in recent decades (1991-2017) than the past (1958-1990).
  • The more extreme the heat event, the larger the contribution of the thermodynamic change will be.

Anti-Cyclone

An anticyclone is a large-scale circulation of winds around high atmospheric pressure, clockwise in the Northern Hemisphere, counterclockwise in the Southern Hemisphere.

It cause clear skies and high temperatures and responsible for settled weather conditions. Fog can also form overnight within a region of higher pressure.

It can form within warm core lows such as tropical cyclones, due to descending cool air from the backside of upper troughs such as polar highs, or from large scale sinking such as the subtropical ridge. The evolution of an anticyclone depends upon variables such as its size, intensity, and extent of moist convection, as well as the Coriolis force.

Source: TH


Rajasthan First State to Implement Biofuel Policy

  Rajasthan First State to Implement Biofuel Policy: (GS-II(Policies) & GS-III(Environment)) Theme: Biofuel Policy Rajasthan has become the first State in the country to implement the national policy on biofuels unveiled by the Centre in May 2018.   The desert State will lay emphasis on increasing production of oils

SEHAT Scheme for Teleconsultation

Services e-Health Assistance and Teleconsultation (SeHAT) is the tri-services teleconsultation service of the Ministry of Defense designed for all entitled personnel and their families. As part of the Government’s commitment to Digital India and e-Governance, Minister of Defense launched SeHAT on 27 May 2021. It has been a great exam

PM Poshan Scheme to replace Mid Day Meal Scheme

PM Poshan (Erstwhile Mid Day Meal) Scheme Cabinet has approved the Prime Minister POSHAN scheme or PM-POSHAN for providing one hot cooked meal in Government and Government-aided schools. The scheme will replace the existing national programme for mid-day meal in schools or Mid-day Meal Scheme (launched in 1995). It has been launched for a

National Initiative for Design Innovation (NIDI)

National Initiative for Design Innovation (NIDI) Government launched the scheme of “National Initiative for Design Innovation (NIDI)” in March, 2014. Scheme envisaged establishment of 20 Design Innovation Centres (DIC), One Open Design School (ODS) and One National Design Innovation Network (NDIN) across the country for promoti

Saffron cultivation in India

Saffron is a plant whose dried stigmas (thread-like parts of the flower) are used to make saffron spice. Saffron cultivation is believed to have been introduced in Kashmir by Central Asian immigrants around the 1st Century BCE. Pampore region, in India, commonly known as Saffron bowl of Kashmir, is the main contributor to saffron p

Students Achievement

Search By Date

Newsletter Subscription
SMS Alerts