GoDubai
  
  
  
  
Citylife > Press Release
  Home Contact us Add to Favourites
Most Recent Postings
More Press Releses
Featured Sections

Event Finder
A daily roundup of exhibitions, promotions and other events in Dubai and the rest of the Emirates.
Submit an Event
Latest Dubai Press Releases >>

 
  Share

Abu Dhabi, August 22, 2019:  A team of researchers from NYU Abu Dhabi's Center for Global Sea Level Change, supported by the Office of Polar Programs of the USA National Science Foundation, have found that unusually warm ocean water is causing rapid melt at the Greenland outlet glacier Helheim, one of the largest in the region.

For the first time, warm waters that originate in the tropics have been found at uniform depth, displacing the cold polar water at the Helheim calving front, causing an unusually high melt rate. Typically, ocean waters near the terminus of an outlet glacier like Helheim are at the freezing point and cause little melting.

Video and photos are available here. (Credit: NYU Abu Dhabi Center for Global Sea Level Change).

On August 5, 2019, researchers, led by Professor of Mathematics at NYU's Courant Institute of Mathematical Sciences and Principal Investigator for NYU Abu Dhabi's Center for Sea Level Change David Holland, deployed a helicopter-borne ocean temperature probe into a pond-like opening, created by warm ocean waters, in the usually thick and frozen mélange in front of the glacier terminus.

Normally, warm, salty waters from the tropics travel north with the Gulf Stream, where at Greenland they meet with cold, fresh water coming from the polar region. Because the tropical waters are so salty, they normally sink beneath the polar waters. But Holland and his team discovered that the temperature of the ocean water at the base of the glacier was a uniform plus four degrees centigrade from top to bottom at depth to 800 meters. The finding was also recently confirmed by NASA's OMG (Oceans Melting Greenland) project.

“This is unsustainable from the point of view of glacier mass balance as the warm waters are melting the glacier much faster than they can be replenished,” said Holland.

Surface melt drains through the ice sheet and flows under the glacier and into the ocean. Such fresh waters input at the calving front at depth have enormous buoyancy and want to reach the surface of the ocean at the calving front. In doing so, they draw the deep warm tropical water up to the surface, as well.

All around Greenland, at depth, warm tropical waters can be found at many fjord locations. Their presence over time changes depending on the behavior of the Gulf Stream. Over the last two decades, the warm tropical waters at depth have been found in abundance. Greenland outlet glaciers like Helheim have been melting rapidly and retreating since the arrival of these warm waters.

“We are surprised to learn that increased surface glacier melt due to warming atmosphere can trigger increased ocean melting of the glacier,” added Holland. “Essentially, the warming air and warming ocean water are delivering a troubling ‘one-two punch' that is rapidly accelerating glacier melt.”



Posted by : GoDubai Editorial Team
Viewed 5856 times
Posted on : Thursday, August 22, 2019  
Replication or redistribution in whole or in part is expressly prohibited without the prior written consent of GoDubai.com.
Previous Story : What is PMP Certificate for and Why Do You Need a Preparing Course in Dubai?
Next Story : GEMS Education's GCSE students celebrate outstanding results
Email this article Print this article

Share this article with your friends and followers
NewsVine

Comments

Back to Top  
Most Viewed Press Release posted in the last 7 days
Autumn/Winter 19: Step out in the latest styles with City Centre Deira and City ...
Restoration by Parmigiani Fleurier -The Yusupov Egg
Sandro Launches Evening Capsule Collection
Enjoy Smoother Skin with the current obsession from PMD - The Personal Microderm...
A new model for the ladies enriches the Corum AC-One collection with luscious fe...
His Highness Sheikh Hamdan Bin Mohammed Bin Rashid Al Maktoum Challenges the Cit...
Energize & Refresh Your Skin With the Foreo Luna 2 for Men
Saif bin Zayed unveils first floating Smart Police Station
Save the Children Jordan launches TREE program “Transforming Refugee Education t...
Cambridge Assessment English witnesses a huge demand for OET (Occupational Engli...
GITEX hosts global AI expert, international CEOs and honours retail, smart city ...
Aquaplex with an eye on the future expansion of Specification sales, launches ne...
From Dubai Police's floating police station to Etisalat's Lazareth Flying Motorc...
Hazzaa AlMansoori's return to the UAE is scheduled for Saturday 12th October
du, Nokia & SRTIP Sign a Strategic teaming Agreement to Bring Sharjah's Knowledg...
Hazzaa AlMansoori reveals post flight details in a press conference
The new urban warrior unleashed - Corum injects modernity and athleticism into ...
Hamdan bin Mohammed calls on the city to be ‘In It Together' for the Dubai Fitne...
Dubai's LIFEPharma signs historic agreement with Apotex Inc., the largest produc...
6 Ways To Wear The Houndstooth Print
One stop shop for classifieds and deals in UAE- QUOODO.com
Al Tayer Battles on in China After Aquabike Setback
More than 1,900 beneficiaries at Al Mizhar and Umm Al Sheif Islamic Cultural cen...
Marks & Spencer Launches Its New Sleepwear Collection for AW19
The Coffee Club in Al Bateen, Abu Dhabi re-opens with a refreshed new look
Choithrams Customer lends her voice to World Food Day in support of The United N...
Heritage village at Global Village offers a glimpse into Emirati traditions
OMEGA's new Museum
Expo Centre Sharjah announces winner of 1KG gold
Medusa Lock Icon
This visually-impaired Emirati knows no impossible
US-China Trade War Weighs Heavily on Air Cargo
Union Coop Hosts Almarai's Gifting Ceremony For the Second Time
Dubai-Based NRI business leader donates INR 10m to his Alma Mater to setup Innov...
KOBEYa - The First Japanese and Far Eastern Gluten Free Café opens in the UAE
Middle East Retail Forum (MRF) 2019 focused on RetailNEXT
Malabar Gold & Diamonds inaugurates its relocated outlet in Hamdan Street, Abu D...
Dubai Customs inks partnership agreement with Hawkamah Institute for Corporate G...
DAFZA contributes 12% to Dubai's foreign trade in first half of 2019
IFS lays out blueprint for new era of intelligent and autonomous enterprise solutions
The My Perfumes Group receives the Golden Visa
Worldsteel Short Range Outlook October 2019
Dubai Shopping Malls Group Announces “shop & Win Gold” Promotion for Diwali 2019
Mazoon Dairy inaugurates the first biogas plant in the region
The Workwear Edit
Al Majid Motors Co. announces 15-day sale with generous discounts on latest Kia ...
Alno launches new products in UAE in strategic partnership with Diemme kitchen
Abu Dhabi Airports signs historic Memorandum of Understanding with Beijing Daxin...
Revving The Engines At Rallylegend 2019 With Eberhard & Co.
Dubai Refreshment Company Wins First Prizeat the Dubai Green Industrial Award 2019