Modeling tidal current profiles and vertical mixing beneath Filchner-Ronne Ice Shelf, Antarctica

first_imgOne of the warmest water masses beneath Filchner-Ronne Ice Shelf (FRIS) is dense, high salinity shelf water (HSSW) that flows into the sub-ice-shelf cavity from the ice front and occupies the lower portion of the water column. A one-dimensional turbulence closure ocean model has been applied to this high latitude sub-ice-shelf environment to demonstrate that tidal currents mix HSSW vertically through the water column and cause melting at the bottom of the ice shelf. Significantly FRIS lies near the critical latitude for the semidiurnal tide, where the Coriolis frequency equals the tidal frequency, resulting in a strongly depth-dependent tidal current and thick boundary layers. Using the model, the effect of the critical latitude, stratification, and the polarization of the tidal current ellipse on boundary layer structure and subsequent vertical mixing are examined. The model shows that stratification significantly affects how the shape of the tidal current ellipse varies with depth and that both the depth to which the pycnocline initially develops and the longer term melt rates are highly dependent on tidal current ellipse polarization. The sensitivity to both the stratification and the polarization are due, in large part, to the proximity of the critical latitude. Positive polarizations (anticlockwise rotating current vectors) quickly develop deeper pycnoclines and maintain higher melt rates than negative polarizations (clockwise rotating current vectors). For many areas beneath FRIS the polarization ranges from -0.3 to +0.3; here the modeled pycnocline development is sensitive to polarization, though the effect on the time-averaged melt rate is suppressed for positive polarizations. However, in key areas where the polarization exceeds +/-0.3 and the ellipses are more open and circular, the effects of polarization are significant. Levels of tidal mixing and associated melting vary by more than an order of magnitude over the whole tidal ellipse polarization range, showing that very different mixing and melting regimes are present beneath FRIS.last_img read more

Breeding latitude drives individual schedules in a trans-hemispheric migrant bird

first_imgDespite clear benefits of optimal arrival time on breeding grounds, migration schedules may vary with an individual bird’s innate quality, non-breeding habitat or breeding destination. Here, we show that for the bar-tailed godwit (Limosa lapponica baueri), a shorebird that makes the longest known non-stop migratory flights of any bird, timing of migration for individual birds from a non-breeding site in New Zealand was strongly correlated with their specific breeding latitudes in Alaska, USA, a 16,000-18,000 km journey away. Furthermore, this variation carried over even to the southbound return migration, 6 months later, with birds returning to New Zealand in approximately the same order in which they departed. These tightly scheduled movements on a global scale suggest endogenously controlled routines, with breeding site as the primary driver of temporal variation throughout the annual cycle.last_img read more

The impact of temperature and crystal orientation fabric on the dynamics of mountain glaciers and ice streams

first_imgStreaming ice accounts for a major fraction of global ice flux, yet we cannot yet fully explain the dominant controls on its kinematics. In this contribution, we use an anisotropic full-Stokes thermomechanical flow solver to characterize how mechanical anisotropy and temperature distribution affect ice flux. For the ice stream and glacier geometries we explored, we found that the ice flux increases 1–3% per °C temperature increase in the margin. Glaciers and ice streams with crystallographic fabric oriented approximately normal to the shear plane increase by comparable amounts: an otherwise isotropic ice stream containing a concentrated transverse single maximum fabric in the margin flows 15% faster than the reference case. Fabric and temperature variations independently impact ice flux, with slightly nonlinear interactions. We find that realistic variations in temperature and crystallographic fabric both affect ice flux to similar degrees, with the exact effect a function of the local fabric and temperature distributions. Given this sensitivity, direct field-based measurements and models incorporating additional factors, such as water content and temporal evolution, are essential for explaining and predicting streaming ice dynamics.last_img read more

Old US frigates to be reactivated for delivery to Taiwan

first_imgBack to overview,Home naval-today Old US Navy frigates to be reactivated for delivery to Taiwan Navy Authorities View post tag: US Navy The U.S. Naval Sea Systems Command has awarded VSE Corporation a contract worth up to $74 million to reactivate two former U.S. frigates prior to their delivery to the Taiwan Navy.Under this contract, VSE will manage the industrial work, logistics and crew training for two Oliver Hazard Perry-class frigates, the ex-USS Taylor (FFG 50) and ex-USS Gary (FFG 51).The company said the industrial work would be performed in Charleston, SC, and each ship would receive a Dry-Docking Selected Restricted Availability (DSRA) during which all hull, mechanical and electrical systems, as well as selected combat systems will be reactivated and tested to ensure the ships are returned to full operating capability.The Taiwan crews will receive training on maintenance and operation of the FFG systems which will include training in the classroom, on-the-job training, and underway operational exercises.According to the contract, the company has 16 months to complete the work.“Since 1995 VSE has transferred more than 48 ships to foreign governments, including the transfer of twelve ex-U.S. Navy ships to Taiwan,” said Maurice Gauthier, VSE CEO, President and COO.The sale of the two frigate to Taiwan for a price of $190 million was approved by the U.S. State Department in March 2016. View post tag: Taiwan Navy View post tag: Oliver Hazard Perry July 22, 2016 Old US Navy frigates to be reactivated for delivery to Taiwan Navy Share this articlelast_img read more

Starbucks targets Welcome Break service station outlets

first_imgStarbucks is to open its first motorway services outlet in the UK, in a change of heart as it explores new avenues of trading.The American giant plans to open 29 sites at Welcome Break service stations over the next 16 months, replacing Welcome Break’s Coffee Primo own-brand.It is understood that the Starbucks outlets will feature an updated, less corporate look, with reduced signage and a contemporary feel. Prices of the coffee have yet to be finalised. The deal came after Welcome Break approached Starbucks, which currently has 661 UK outlets, having been knocked back by the coffee chain in the past.The first sites to be revamped will be at Oxford Services on the M40 and Hopwood Park on the M42 – these will open by the end of March or early April.Welcome Break chief executive Rod McKie said: “This will complement the expansion of the Waitrose estate within Welcome Break and is part of a significant investment by the company. We are looking forward to opening the 29 Starbucks and are confident that there is potential to open many more.”Coffee Primo stores already sell 16 million cups of coffee a year, but McKie said he expected the deal with Starbucks to boost sales by at least 30% — a similar increase to that enjoyed by the rival Roadchef chain after it introduced Costa Coffee.He said he had chosen Starbucks as a partner after detecting “a new attitude” in the business since the arrival of UK managing director Darcy Willson–Rymer, adding: “There’s a completely different approach.”Starbucks’ Willson-Rymer said: “Customers’ expectations are rising and they want their coffee shops to be as good on-the-go as they are at home. We’ll meet those expectations by setting a new standard for coffee on the UK’s motorways.”Starbucks is second only to Costa in store numbers in the UK, with 681 outlets, according to British Baker’s annual BB75 league table of bakery retailers. The chain was hit in 2009 by the closure of Borders book stores, where it had multiple concessions.last_img read more

Press release: Exporting is GREAT ‘Hero’ campaign unveiled at London City Airport

first_img Contact the DIT Media Team on 020 7215 2000 or email [email protected] Follow us: @tradegovuk or As a vital gateway for business travellers, and with its proximity to growing clusters of SMEs in East London, London City Airport is uniquely placed to strengthen DIT’s new campaign, and reach a truly captive audience. Already the airport is associated with trade exports totalling over £11 billion per year, and once our 4 year £480 million development programme is complete, even more routes to new destinations and markets will help connect businesses with opportunities overseas – helping an outward-looking Britain to prosper. Robert Sinclair, CEO of London City Airport, said: The visit came shortly after Baroness Fairhead made a final call for businesses to input into the government’s new Export Strategy which will report in the coming months.Speaking at London City Airport, Baroness Fairhead said: bringing together policy, promotion and financial expertise to break down barriers to trade and investment, and help businesses succeed delivering a new trade policy framework for the UK as we leave the EU promoting British trade and investment across the world building the global appetite for British goods and services Minister for Export and Trade Promotion Baroness Fairhead visited London City Airport to meet airport executives and SMEs as new Exporting is GREAT campaign is unveiled London City Airport announces partnership with Department for International Trade (DIT) to promote British exports and support the Exporting is GREAT campaign Baroness Fairhead consults airport on emerging Export Strategy shortly after making final call for business to help shape the UK’s trading future DIT’s Exporting is GREAT campaign is currently showcasing 30+ UK businesses – from a range of sectors and regions – to inspire and support firms up and down the country to export.Background1.The Export Strategy is expected to report in the coming months. Evidence will be taken until 18 April 2018.2.The Department for International Trade (DIT) secures UK and global prosperity by promoting and financing international trade and investment, and championing free trade. We are an international economic department, responsible for: Chemian Technologies (North East) Stitch and Story (South East) Norton Motorcycles (Midlands) Sensoteq (Northern Ireland) Joe and Seph’s Popcorn (London) Exporting has always been of fundamental importance to Chemian Technology since I founded the business in 1996. Most of our turnover currently comes from overseas sales and we now sell to more than 30 countries worldwide. Exporting is certainly not an easy process but I’d encourage every company with an innovative product to do what we’ve done and look overseas for growth. I am determined to help British businesses seize global export opportunities across the world. The Department for International Trade is helping thousands of new companies to export every year through our online export support tools at This campaign provides a fantastic opportunity to showcase our export heroes and inspire many more businesses to sell their products overseas. Baroness Fairhead, Minister for Export and Trade Promotion, visited London City Airport yesterday and unveiled new Exporting is GREAT branding featuring 5 export ‘heroes’.Celebrating their partnership with the Department for International Trade (DIT), the airport is hosting the creative campaign to inspire and support more UK companies to take their first steps towards selling overseas.The artwork is being displayed in the airport’s departure lounge and on their main ‘City Icon’ digital screen outside the terminal over the coming weeks.Five businesses featured in the creative campaign met with the minister and CEO of London City Airport, Robert Sinclair, to discuss their export journeys. They are: Ian Dell, Managing Director of Chemian Technology, one of the companies profiled in the campaign said: 3.Exporting is GREAT is the government campaign to inspire and support more UK companies to take their first steps towards selling overseas and help existing exporters grow further. At UK businesses can apply for real-time global export opportunities, access expert advice, trade services, training and events.4.Featured companies:Chemian TechnologiesDarlington-based Chemian Technology develops and manufactures ingredients for the pharmaceutical, chemical and cosmetic industries. The company began exporting after a request from an overseas customer and has received market support from DIT. Overseas sales make up 70% of its revenue and they export to over 20 counties.Norton MotorcyclesFounded in 1898 and selling its first motorcycle sold in 1902, Norton Motorcycle has been an iconic British brand for nearly 120 years. Its current owner, Stuart Garner re-established the company’s UK manufacturing base and delivered the company’s first motorcycle of the new millennium in 2010.It now sells around 1,000 motorcycles each year all over the world and employs 120 staff in the UK. Government support has allowed Norton to grow its business in key markets like Australia, Japan and the USA.Stitch and StoryStitch & Story, a knitting kit manufacturer, has seen sales increase by 200% in the last year as a direct result of exporting to the US, following support from DIT.Based in Dartford, Kent, the business distributes to US marketplace Uncommon Goods, as well as independent gift stores and retailers. The exporting opportunity was secured after Stitch & Story exhibited its products at consumer trade show, NY Now, with support from DIT.The success of Stitch & Story’s international expansion is being celebrated in DIT’s Exporting is GREAT campaign.SensoteqNorthern Ireland based company Sensoteq, design and manufacture bespoke low power wireless sensors for remote machine health monitoring. The company have been exporting for over a year after government support connected them with customers overseas.Joe and Seph’sJoe & Seph’s are a family owned and run business on a mission to produce the best-tasting popcorn in the world.The company started exporting after a French department store saw the popcorn in Selfridges in London.Working with DIT the company started to understand the size of the export opportunity and over the last few years have focused much more proactively on exporting.Their products are now stocked in over 25 countries with the main focus on Scandinavia and the Middle East.Further informationlast_img read more

Georgia crop report

first_imgMother Nature blessed Georgia row-crop farmers in 2009 with perfect weather, which helped bring record-setting results. This year, however, she wasn’t as cooperative and sent the hottest April through September on record – the kind of weather that can hurt.Heat makes diseases worse“It has been difficult to battle disease with this heat,” said Bob Kemerait, a plant pathologist with University of Georgia Cooperative Extension. “White mold, leaf spot disease, southern corn rust – it has been a bad year for disease for our row crop growers and a lot of that is tied to weather pattern.” Since July, white mold has caused the most problems for peanut growers. “The fungal structures of white mold were awakened by the extreme heat early in the growing season,” Kemerait said. “The scattered showers throughout the summer were like gasoline on a fire. This is the worst year for white mold in at least 20 years.” But tomato spotted wilt virus, a disease that threatened to cripple the peanut industry in the 1990s, will likely affect less than 1 percent of the crop this year, he said. Improved varieties and management decisions by growers have made the disease less of a threat.Peanuts need moisturePeanuts not planted in fields with irrigation “are a disaster in some areas,” said John Beasley, a UGA Extension peanut agronomist. “Even irrigated crops have heat damage, especially the farms in the northwest part of the peanut belt that missed some of the rains other areas received.”Without adequate moisture, peanuts can’t absorb the calcium they need to fully develop, he said. Farmers are harvesting peanuts now. The current clear skies, lack of humidity and breezy evenings are perfect for harvest. According to the Georgia Agricultural Statistics Service, growers expect to yield an average of 3,300 pounds per acre, 7 percent less than last year’s record 3,560 pounds per acre average.Growers are harvesting cotton now, too. “The yields are looking more and more optimistic as harvest progresses,” said Guy Collins, a UGA Extension cotton agronomist. “The hot, dry July could have severely reduced yield potential, but it doesn’t look as bad as we thought it would.” According to GASS, cotton yields will average 761 pounds per acre, 16 percent less than last year’s record 902 pounds per acre average.Heat affects cotton bloomingIntense July heat and dry weather shortened the bloom period for much of the crop, Collins said. A shortened bloom period, compounded by the return of rains in August, has caused new vegetative growth to develop. This is not good during harvest. New vegetation can stain or discolor cotton lint, resulting in a lower quality or higher trash content. The top bolls, or the fruits that eventually open to make the lint, are immature or are otherwise difficult to open in some fields, he said, compared to bolls lower on the plant. The cooler weather could be causing them to stay closed. “Hopefully, time and some warm sunny weather will help us out,” Collins said. “If it doesn’t open, it is rendered unharvestable. The top bolls mean more to the growers this year because prices are elevated. We are not dealing with exceptional yields in many cases. They are counting on those top bolls to earn a little more money.” Two leaf spot diseases are causing problems in some fields, Kemerait said. Stemphyllium leaf spot disease causes leaves to fall off before a plant is mature, which prevents bolls from fully developing. Corynespora leaf spot causes rapid defoliation of plants and doesn’t allow the bolls to open properly. It is hitting fields in southwest Georgia.Georgia soybean growers are expected to average 31 bushels per acre, 5 bushels off last year’s average. Soybean harvest is underway. Corn harvest is complete, and growers expect to average 140 bushels per acre, matching last year’s record-setting average.last_img read more

Vermont Receives Additional $2.5M in Contingency LIHEAP Funding

first_imgToday, Governor Jim Douglas announced that Vermont received nearly $2.5 million in additional contingency FY2008 funding for the Low Income Home Energy Assistance Program (LIHEAP). The news came as the federal government released the remaining $120.7 million in LIHEAP contingency funding for FY2008 to all states.Prior to this latest funding award, Vermont had received roughly $16.9 million in LIHEAP funding in FY2008. This new contingency award brings Vermont’s total LIHEAP appropriation in FY2008 to nearly $19.4 million. “The release of additional LIHEAP contingency money for this fiscal year shows that the message the Northeastern governors, and our congressional delegations, have brought to our federal partners is resonating,” said Governor Jim Douglas. “While the $2.5 million awarded to Vermont is a nice down payment, our state’s low-income working families and seniors on fixed incomes depend on the full funding of this program to help us keep every Vermonter warm this winter.”CONEG Governors continue to call on the President and Congress to fully fund LIHEAP at the authorized level of $5.1 billion for this fiscal year to ensure states can meet the needs of low-income families faced with the skyrocketing cost of heating their homes this winter. That will require Congress to appropriate an additional $2.5 billion before they adjourn at the end of the month.”Through the Fuel and Food Partnership, the Governor, legislators and community organizations are doing a great deal to meet the needs of the low-income Vermonters who will be most impacted by the high cost of home heating fuel this winter,” added Cynthia D. LaWare, the Secretary of the Agency of Human Services. “This influx of funds from the federal government could not have come at a better time. It is essential however for the federal government to fully fund the LIHEAP program at the $5.1 billion level to ensure that we best serve Vermonters in need.”Thanks to the financial commitments made by Governor Douglas and the Legislature, last year Vermont provided the most generous LIHEAP benefit in the country. Low-income households responsible for heating their homes received an average fuel assistance benefit of $1,362 last winter. But as home heating costs skyrocket, full funding of LIHEAP is critically important.last_img read more

Suzana Markovic elected president of the Cultural Tourism Association of the Croatian Chamber of Commerce

first_imgThe new president of the Cultural Tourism Association of the Croatian Chamber of Commerce was elected at the election session held on February 28 in the Croatian Chamber of Commerce Suzana Markovic, director of marketing and sales of Ban tours from Zagreb, and they were elected vice presidents Josipa Kovačić, from the Illyricum agency from Split and Renata Nevidal, from the company Globtour Event from Zagreb. She has been appointed Business Secretary of the Community Saša Zrnić from the Sector for Tourism of the Croatian Chamber of Commerce.”I consider the community of cultural tourism of the Croatian Chamber of Commerce extremely important for all of us who are in this industry, especially for travel agencies that organize trips for which culture is a significant content in the products they sell. I will advocate for the promotion of cultural content through adequate tourism products designed in cooperation between the private sector and cultural institutions and establishments. The ultimate goal is for the agencies to attract as many cultural tourists as possible to Croatia, who will know how to appreciate and be able to properly consume the rich cultural heritage of Croatia. Through the HGK Community platform, we will continue to cooperate even more intensively on this issue with the Ministry of Tourism and the Ministry of Culture. “, pointed out Suzana Markovic.Presenting the Action Plan for the Development of Cultural Tourism Vesna Rajković from the Ministry of Tourism pointed out the establishment of an inter-ministerial Working Group for the implementation of the Action Plan. “We need to do much more to facilitate the sale of cultural tourism products and speed up procedures in this area,” said Rajkovic, adding that the Action Plan and the Working Group seeks to achieve joint action of all stakeholders in cultural tourism, achieving strategic goals related to infrastructure. product packages, marketing, partnership and education in this activity.”The European Year of Cultural Heritage 2018, declared by the European Commission under the slogan “Our Heritage: Where the Past Meets the Future”, includes an initiative at European, national and local level, and a synergy of all European initiatives in the field of culture is expected. One of the initiatives within the announced year is the Tourism and Heritage initiative”, Said Anuška Deranja Crnokić from the Ministry of Culture, presenting the European Year of Cultural Heritage, within which the Ministry of Culture will organize about twenty events at the national level and activities included in the European Heritage Days program.last_img read more

In the first half of 2019, 272 cruises were made

first_imgOstalih 14,4% putovanja ostvareno je usljedećim županijama: Zadarskoj (5,9%), Istarskoj (4,8%), Primorsko-goranskoj (2,6%) i Šibensko-kninskoj (1,1%). Increase in the number of voyages, passengers and days of stay of foreign ships round trips Source: CBS Najposjećenija je luka Dubrovnik, slijede luke Split i Zadar The port of Dubrovnik (195 visits) had the most visits of foreign cruise ships, followed by the ports of Split (104 visits) and Zadar (45 visits).center_img Od ukupno 272 kružna putovanja, najviše putovanja ostvareno je u Dubrovačko-neretvanskoj (60,3%) i Splitsko-dalmatinskoj županiji (25,3%), što je ukupno 85,6%. In the period from January to June 2019, the number of trips of foreign ships for cruises increased by 10,6%, and the total number of days of stay of ships increased by 6,1% compared to the same period in 2018. In the mentioned period 2019, the number of passengers on these ships is higher by 14,8% compared to the same period in 2018. U razdoblju od siječnja do lipnja 2019. u hrvatske morske luke uplovila su 54 strana broda za kružna putovanja s ostvarena 272 kružna putovanja. Na tim brodovima bilo je 409 tisuća putnika, koji su u Hrvatskoj boravili 554 dana, govore podaci Državnog zavoda za statistiku ( DZS ).last_img read more