Predicting the climate for the future and how it will impact ice sheet evolution requires coupling ice sheet models with climate models. However, before we attempt to develop a realistic coupled setup, we propose, in this study, to first analyse the impact of a model simulated climate on an ice sheet. We undertake this exercise for a set of regional and global climate models. Modelled near surface air temperature and precipitation are provided as upper boundary conditions to the GRISLI (GRenoble Ice Shelf and Land Ice model) hybrid ice sheet model (ISM) in its Greenland configuration. After 20 kyrs of simulation, the resulting ice sheets highlight the differences between the climate models. While modelled ice sheet sizes are generally comparable to the observed one, there are considerable deviations among the ice sheets on regional scales. These deviations can be explained by biases in temperature and precipitation near the coast. This is especially true in the case of global models. But the deviations between the climate models are also due to the differences in the atmospheric general circulation. To account for these differences in the context of coupling ice sheet models with climate models, we conclude that appropriate downscaling methods will be needed. In some cases, systematic corrections of the climatic variables at the interface may be required to obtain realistic results for the Greenland ice sheet (GIS).
Pardis Sabeti, associate professor in the Department of Immunology and Infectious Diseases at Harvard School of Public Health (HSPH), and Mosoka Fallah, M.P.H. ’12, were among the Ebola fighters — doctors, nurses, caregivers, scientists, and directors — named Time’s 2014 “Person of the Year.”Sabeti, who also is a senior associate member at the Broad Institute of Harvard and MIT and an associate professor at the Center for Systems Biology in Harvard’s Department of Organismic and Evolutionary Biology, was named to the list of “The Scientists” for her leadership in the effort to sequence the Ebola genome and track its mutations.Fallah, one of “The Doctors,” grew up in Monrovia, Liberia, and returned to the capital city to help contain the spreading Ebola epidemic.In the award article, online December 10, 2014, Time’s Nancy Gibbs writes, “The rest of the world can sleep at night because a group of men and women are willing to stand and fight. For tireless acts of courage and mercy, for buying the world time to boost its defenses, for risking, for persisting, for sacrificing and saving, the Ebola fighters are Time’s 2014 Person of the Year.” Read Full Story
Hands up – who enjoyed “Indiana Jones and The Temple of Doom” movie? I don’t know about you, but my favorite scene was the cart chase down the mine tunnel with the baddies in hot pursuit! When we picture a working mine, we see images like those depicted in the movie – deep caverns, tough conditions, workers wearing mining hats with head lamps, tram tracks and heavy machinery.Of course, some of those stereotypical images are based on reality but did you know that technology is now being used to monitor remote mining equipment in some of the world’s most challenging industrial environments, allowing experts to make more informed decisions, based on data?Leveraging technology down the minesTake one of the world’s largest engineering companies, The Weir Group. A global market leader, Weir provided trusted technology and services to help make mining operations more productive and profitable. For example, the company designs and manufactures sophisticated machinery involved in dewatering the mines, crushing and grinding rock as well as classifying, separating and transporting materials. As you can imagine, this is high-value, mission-critical equipment – if anything goes down for whatever reason, the mine may have to stop operations, which has obvious significant cost implications for customers.Predictive maintenanceThe good news is that by using the Internet of Things and Dell Gateways, Weir can now monitor the condition of the equipment second by second and help operators predict when maintenance should take place. The end-customer gains better insights about the likely timing of machinery servicing and the need for replacement parts, which results in increased uptime plus more informed capital expenditure planning. Win-win all round!Excited about the potential of IoTHow did this heavy engineering and technology partnership begin? Established over 150 years ago, Weir places a huge focus on innovation and is constantly looking to develop new and more efficient ways of working. Back in 2013, the company was already exploring the potential of the IoT and had designed and produced a prototype platform with sensors to digitally connect its field assets.A global partnershipWeir was so impressed with the initial test results that it wanted to move to mass production. However, the company was aware that gaining worldwide regulatory and safety certification in 120 countries would take time and knew that it would benefit from identifying a world class IT partner. Weir enlisted Dell Technologies OEM & IoT as its global partner to manufacture the units, simplify the development process, handle logistics and provide support.A modular, cost-effective solutionOur solution for Weir is designed, customized and built in a modular fashion. A relatively small number of blocks can be configured into many different solutions – all fully tested and certified for every country of operation. The customer gets consistency, a scalable, modular platform, built on open standards, using cost-effective, off-the-shelf compute blocks that can be used across all its business divisions. We manage the entire program from initial order and sourcing of third-party components through manufacturing, customization, delivery and post-sales support.Digitizing heavy mechanical machineryWhile I can’t promise you a cart chase through the mines like the movie, I believe that Weir’s technology solution – built on Dell Technologies OEM & IoT, Intel and Microsoft infrastructure – is just as exciting. The solution changes how Weir interacts with assets in the field, delivers increased efficiencies and opens the potential for even more innovative products and services. It’s part of Weir’s digital journey and is transforming how the company serves its mining, oil, gas, infrastructure and industrial customers.According to Weir, the internet of things offers a powerful competitive advantage, which will help drive its future growth. And, there’s more to come. Read what my colleague Bryan Jones has to say about the merging of IoT and Artificial Intelligence. Are you using IoT to transform your business? Please join the conversation. I’d love to hear your comments and questions. If you’re attending Hannover Messe, please stop by to say hi to our team from Dell Technologies and VMware plus partners from IOTech, SAS, Bormann, Teamviewer, ActionPoint,Tridium and Alleantia. We’ll be at Hall 6, Booth C40, April 1-5.Experience our amazing, interactive demo to learn how Dell Technologies infrastructure can help you harness the power of IoT and AI in your operations at scale.Learn more about Dell TechnologiesLearn more about next gen solutions from Dell Technologies OEM & IoTJoin our LinkedIn OEM & IoT Solutions Showcase pageLearn more about The Weir Group’s innovative engineering solutionsFollow us on Twitter @DellEMCOEM and follow Dermot @DermotAtDell