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Global sea ice diminishing: NASA

Published

10 years ago

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seaicemin-NASA

Washington: The gains from sea ice increase in Antarctica do not cancel out the loss from the accelerated decrease in Arctic sea ice of the last decades, a study by NASA has found.

As a whole, the planet has been shedding sea ice at an average annual rate of 35,000 square kilometers since 1979, the findings showed.

“Even though Antarctic sea ice reached a new record maximum this past September, global sea ice is still decreasing,” said author of the study Claire Parkinson, climate scientist at NASA’s Goddard Space Flight Centre in Greenbelt, Maryland.

“That is because the decreases in Arctic sea ice far exceed the increases in Antarctic sea ice,” Parkinson explained.

The researcher used data collected by NASA and US Department of Defense satellites for her study spanning from November 1978 to December 2013.

Over the 35-year period, the global ice decrease has accelerated: in the first half of the record (1979-96), the sea ice loss was about 21,500 square kilometers per year.

This rate more than doubled for the second half of the period (1996 to 2013), when there was an average loss of 50,500 square kilometers per year.

“So when the area of sea ice coverage is reduced, there is a smaller sea ice area reflecting the sun’s radiation back to space. This means more retention of the sun’s radiation within the Earth system and further heating,” Parkinson said.

It is unlikely that the Antarctic sea ice expansion will accelerate and overturn the global sea ice negative trend in the future, the study added.

The study was appeared in the Journal of Climate.

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Apple is giving a huge discount on its gadgets: Details inside

Published

3 years ago

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May 5, 2022

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If you want to buy an iPhone and were waiting for a nice offer, then we have a piece of good news for you! Amazon Summer Sale May 2022 has begun and they are offering major discounts on various smartphones, laptops, and smart TVs, among others.

The sale is live now on the e-commerce platform with no-cost EMI options and exchange discounts on various products. In addition to this, Amazon has also partnered with several banks including ICICI, Kotak Bank, and RBL so that customers get instant discounts of up to 10% using their cards and EMI transactions.

Customers can easily enjoy this summer sale and get massive discounts on iPhones. They can also compare prices on Flipkart Big Saving Days Sale 2022 before making a purchase.

 

Amazon Summer Sale May 2022: Discount offer on iPhone 13 

Apple’s coveted phone model iPhone 13 in the 128 GB storage model will be available during the Amazon Summer Sale May 2022 for Rs 64,900. The MRP of the phone is Rs 79,900. This means that the customers will be able to enjoy a discount of up to Rs 15,000 on the purchase of the iPhone 13.

If you have an old iPhone in working condition then you will also be eligible to receive another additional discount worth up to Rs 17,000 on the iPhone 13.

Buy at Rs. 64,900 (MRP – Rs. 79,900)

Features of Apple iPhone 13 

The iPhone is powered by an A15 Bionic processor with 6 core CPU. Apart from this, it has 16 core neural engines. With the iPhone 13, up to 512 GB of storage will be available. The iPhone 13 has a 6.1-inch Retina XDR display with 1000 nits brightness.

The iPhone 13 has a 12-megapixel dual rear camera setup. This time a new wide-angle camera has been given, whose aperture is f/1.6. With this, there is support for sensor optical stabilisation. Night mode has been made better than before. The second lens is also 12 megapixels ultra-wide and has an aperture of f/2.4.

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