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 5850 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
Move Aside C-beauty, K-beauty and J-beauty - There's a New Trend in Town and It...
Autumn/Winter 19: Step out in the latest styles with City Centre Deira and City ...
Think LUNETTE for an earth-friendly period
Restoration by Parmigiani Fleurier -The Yusupov Egg
ACE launches its new and inspirational Outdoor collection
Chain Reaction
Dress for Diwali With the Rack by Kachins
Sandro Launches Evening Capsule Collection
‘A Gift of Gold' offers at Malabar Gold & Diamonds
Celebrate guilt-free shopping to your fullest!
VAIO returns to Middle Eastern in partnership with Nexstgo
Eighth World Championship title in all categories for Tissot Ambassador Marc Marquez
His Highness Sheikh Hamdan Bin Mohammed Bin Rashid Al Maktoum Challenges the Cit...
Handbags and Gladrags
Unifonic empowers business to capitalize on instant messaging apps to engage wit...
A new model for the ladies enriches the Corum AC-One collection with luscious fe...
New Strategic Partnership with Hewlett Packard Enterprise to help accelerate Abu...
Saudi Arabia's Ministry of Energy highlights enhanced cybersecurity credentials ...
The S Hotel Al Barsha reveals five new food and beverage offerings
Hazzaa AlMansoori Undergoes Medical Experiments at Stars City as part of His Sci...
Saif bin Zayed unveils first floating Smart Police Station
Dubai Land Department welcomes Saudi Minister of Housing
Save the Children Jordan launches TREE program “Transforming Refugee Education t...
During a press conference to announce the completion of preparations of Summit t...
Sofas for Lavish Lounging from 2XL Furniture & Home Decor
Enjoy Smoother Skin with the current obsession from PMD - The Personal Microderm...
Team Abu Dhabi Stars Chase Double World Title Boost in China
Cambridge Assessment English witnesses a huge demand for OET (Occupational Engli...
Microsoft introduces team-empowering Surface Hub 2S to UAE market at GITEX Techn...
Energize & Refresh Your Skin With the Foreo Luna 2 for Men
Caparol Paints completes two decades of success, innovation and sustainability i...
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...
Leading public, private sector organisations line up to sponsor World Tolerance ...
Halloween Celebrations at Le Meridien Dubai Hotel and Conference Centre
Ajman Opens the Largest Private Academic Hospital in the Region
du, Nokia & SRTIP Sign a Strategic teaming Agreement to Bring Sharjah's Knowledg...
Dubai Cares unveils ground-breaking Early Childhood Development (ECD) solutions ...
Hazzaa AlMansoori reveals post flight details in a press conference
HE Hamad Obaid AlMansoori: Hazzaa has shown excellent health condition
Focus Softnet Launches its Artificial Intelligence Platform - AIFA at GITEX 2019
Hazzaa AlMansoori's return to the UAE is scheduled for Saturday 12th October
du, NXN, & TELUS Health Collaborate to Optimise the UAE Healthcare Sector
Nesma collaborates with Hytera for IoT-enabled mission critical communication te...
From Dubai Police's floating police station to Etisalat's Lazareth Flying Motorc...
Dubai's LIFEPharma signs historic agreement with Apotex Inc., the largest produc...
Alarming rise of breast cancer figures in UAE sees Bareen International Hospital...
UPS and SAP Exhibit Latest Collaboration on Sustainable Logistics Technology at ...
The Outerwear Edit
Nokia smartphone roll out of Android 10 begins: