×

UPSC Courses

DNA banner

DAILY NEWS ANALYSIS

  • 04 June, 2020

  • 5 Min Read

Expansion of Ameri Ice Shelf (AIS)

Expansion of Ameri Ice Shelf (AIS)

  • The National Centre for Polar and Ocean Research (NCPOR) predicts that there would be a 24% increase in the expansion of Ameri Ice Shelf (AIS) boundaries by 2021 and another 24% expansion by 2026 from its 2016 positions.
  • The floating sheets of ice called the ice shelves play a multi-faceted role in maintaining the stability of a glacier.
  • Ice shelves connect a glacier to the landmass.
  • The ice sheet mass balance, sea stratification, and bottom water formation are important parameters for the balancing of a glacier.
  • Latent and sensible heat processes do play important roles here.

The AIS is one of the largest glacier drainage basins in the world, located on the east coast of Antarctica, at about 70ºS Latitude, 70ºE Longitude. The AIS dynamics and mass balance help in understanding the changes in the global climate scenario.

  • The NCOPOR scientists observed a spatio-temporal change in the ice shelf as reflected by the extension of the Pridze and Mackenzie and the extension of a 200-km stretch between Mackenzie Bay (68.5ºS Latitude; 70.2ºE Longitude) and the Sandefjord Bay (69.65ºS Latitude; 74.3ºE Longitude), which is a part of the AIS.
  • It becomes clear from the study that the AIS is losing its stability owing to the impact of a downstream giant glacial drainage system over the past 19 years, thereby advancing the ice shelf boundaries due to higher freezing rates than basal melting.

Source: PIB


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