Global evolution of a substorm-associated DP2 current system observed by superDARN and magnetometers

first_imgThis paper deals with an evolution of the electric field in the dayside auroral and equatorial ionosphere during asubstorm on July 16, 1995. A southward turning of the IMF detected by WIND (171 Re) caused enhancements in the auroral electrojet intensity in the 7–10 MLT and 15.5–18.5 MLT sectors as observed by the IMAGE (74-56 cgmlat) and CANOPUS (70-58 cgmlat) magnetometer chains. SuperDARN detected an equatorward motion of the radar scattering region at speeds of several −10 degs/hour in the dayside (05–17 MLT), suggesting an increase in the flux of the open magnetic field in the polar cap. Furthermore, coherent magnetic variations are observed at subauroral to equatorial latitudes simultaneously with the auroral magnetic variations within a temporal resolution of 10 s. This suggests that the electric field increase during the growth phase is established instantaneously around the convection reversal in the 15.5–18.5 MLT sector, and furthermore penetrates instantaneously to mid and low latitudes. SuperDARN detected a continuous equatorward motion of the auroral oval during the expansion phase around the cusp, which implies a continuous magnetic merging at the day-side magnetopause during the expansion phase. A rapid decrease in the electric field is inferred from coherent auroral and equatorial magnetic field decreases during the recovery phase, which may have been caused by northward turning of the IMF. This magnetic field decrease resembles the change in magnetic field of the counter-electrojet at the dip equator in the afternoon sector.last_img read more

The effect of geometry on ice shelf ocean cavity ventilation: a laboratory experiment

first_imgA laboratory experiment is constructed to simulate the density-driven circulation under an idealized Antarctic ice shelf and to investigate the flux of dense and freshwater in and out of the ice shelf cavity. Our results confirm that the ice front can act as a dynamic barrier that partially inhibits fluid from entering or exiting the ice shelf cavity, away from two wall-trapped boundary currents. This barrier results in a density jump across the ice front and in the creation of a zonal current which runs parallel to the ice front. However despite the barrier imposed by the ice front, there is still a significant amount of exchange of water in and out of the cavity. This exchange takes place through two dense and fresh gravity plumes which are constrained to flow along the sides of the domain by the Coriolis force. The flux through the gravity plumes and strength of the dynamic barrier are shown to be sensitive to changes in the ice shelf geometry and changes in the buoyancy fluxes which drive the flow.last_img read more

Arizona women in 1st Sweet 16 since ’98 after win over BYU

first_imgMarch 24, 2021 /Sports News – Local Arizona women in 1st Sweet 16 since ’98 after win over BYU Tags: Arizona Wildcats/BYU Cougars Women’s Basketball/Women’s NCAA Tournament Associated Press FacebookTwitterLinkedInEmailSAN ANTONIO (AP) — Arizona is going to the women’s NCAA Sweet 16 for the first time since coach Adia Barnes was a player for the Wildcats in 1998.Aari McDonald had 17 points and 11 rebounds, and Arizona beat BYU 52-46 in the Mercado Region. The Wildcats finally went ahead to stay on a 3-pointer by Sam Thomas with 3:47 left. That was soon after a 3 by McDonald, the second-team All-American who sealed the game in the closing seconds with a steal and breakaway layup.Co-West Coast Conference player of the year Shaylee Gonzales had 16 points for BYU. Written bylast_img read more

Russia: Black Sea Fleet Surface Ships Hold Landing Assault Drill

first_imgBlack Sea Fleet (BSF) surface ships supported by naval aircraft held a landing assault drill during the Caucasus-2012 military exercise…[mappress]Source: Russian Navy, September 24, 2012; Image: Flot View post tag: Landing View post tag: Assault Back to overview,Home naval-today Russia: Black Sea Fleet Surface Ships Hold Landing Assault Drill View post tag: sea Russia: Black Sea Fleet Surface Ships Hold Landing Assault Drill View post tag: Drill September 24, 2012 View post tag: fleet View post tag: Navycenter_img Training & Education View post tag: Naval View post tag: News by topic View post tag: Black View post tag: ships View post tag: hold View post tag: Surface Share this articlelast_img read more

NATO concludes Baltic Sea search and rescue drill

first_img May 11, 2017 Share this article View post tag: Dynamic Mercy NATO search and rescue drill Dynamic Mercy concludes in Baltic View post tag: SAR View post tag: Baltic Seacenter_img Back to overview,Home naval-today NATO search and rescue drill Dynamic Mercy concludes in Baltic View post tag: NATO Authorities NATO’s Baltic Sea search and rescue drill Dynamic Mercy concluded on Wednesday, May 10.The two-week exercise was divided into six challenging aeronautical and maritime training scenarios.In total, nine Rescue Coordination Centres (RCC’s) comprising of joint, maritime and air centres from eight NATO countries and partners with adjacent search and rescue regions participated.Military and civilian air and maritime assets from Denmark, Finland, France, Germany, Latvia, Lithuania, Poland and Sweden collaborated and interacted together during the training scenarios.NATO says the aim of exercise Dynamic Mercy is to practice and develop inter-regional and cross boundary cooperation and coordination between the RCCs of allies in NATO’s northern region with Partner Nations that have common search and rescue region (SRR) boundaries with those of Allies. The exercise is held annually, either in the Atlantic or the Baltic Region, this year focusing on the Baltic.During this year’s exercise, through live and synthetic SAR scenarios, cross region cooperation and interaction between RCCs (military and civilian) and mobile SAR units were tested and activated. These coordinated procedures are vital for common understanding of multiple national services, and crucial for rescuing lives at sea.“Dynamic Mercy is an extremely important exercise for NATO, as it enables NATO to work side by side with RCCs, SAR units, civilian agencies, and companies from different countries and regions,” said Captain Colin Walsh, Chief of Staff for Commander Maritime Air NATO. “NATO annual oversight and coordination ensure a consolidated effort in Search and Rescue, contributing to a better understanding of the complex SAR environment due to the multiple actors involved.”last_img read more

NTTR Lecturer/Advisor Theatre and Dance

first_imgOpen Until FilledYes Posting Details This is primarily an advisor position with a minimal teachingrequirement depending on advising loads. In addition, participationin orientation and recruiting events, advising luncheons, andMaster Advisor training is required.Demonstrated exceptional interpersonal, written and oralcommunication skills are required. The ideal candidate must becommitted to delivery of high-quality academic advising to adiverse college student population, possess the ability to work ina fast-paced environment, and learn and communicate continuallychanging and detailed information.In addition to preparing for and holding classes [face-to-face,hybrid, and/or online], teaching involves maintaining currency inthe content area related to the teaching assignment, evaluatingstudents’ work, assessing student outcomes, maintaining appropriaterecords, and holding office hours.This is an academic year appointment that may include some summerorientation and advising duties that would be covered by a separatestipend. The Theatre and Dance program seeks applications for a Non- TenureTrack Renewable Lecturer /Academic Advisor beginning Fall2021.More information about the program can be found in the web pagehttps://www.nku.edu/academics/sota/theatre.html Job Open Date12/28/2020 Minimum EducationMaster’s Degree Northern Kentucky University ( NKU ) seeks excellence by enrichingits educational environment and culture through the diversity ofits administration, faculty and staff and by embracinginclusiveness, equity, and global awareness in all dimensions ofits work. NKU is an Equal Opportunity/Equal Access/AffirmativeAction institution. We encourage applications by members of diversegroups and by persons with a demonstrated commitment to issues ofdiversity and experience in achieving goals relative to inclusiveexcellence. Working TitleNTTR Lecturer/Advisor Theatre and Dance 1) A Master’s Degree in theatre or dance is required; preferencewill be given to applicants who are able to teach courses in danceand musical theatre performance and/or who have experience as adirector or choreographer in musical theatre.2) Prior advising experience is preferred; ability to effectivelycommunicate with a broad range of student backgrounds andexperiences is essential along with organizational skills to trackup to 150 or more advisees.3) Teaching experience at the college level is required.4) Demonstrated ability to work effectively with diversepopulations is required.5) Applicants must have a working knowledge of Microsoft Office,including PowerPoint and Excel. Familiarity with SAP (NKU’sinformation system) and /or Navigate-Student Success Collaborativeis desirable.Screening of applications will begin February 15, 2021 and continueuntil the position is filled. Applicants should submit a statementof interest, curriculum vitae, teaching and advising philosophy,personal philosophy on diversity and inclusion that emphasizestheir importance in higher education, and the names, email, andphone numbers of three references. Application materials should besubmitted electronically at https://jobs.nku.edu. Questionsregarding this position and search should be directed to NicolePerrone, [email protected], chair of the search committee.Questions regarding the application process should be directed toNKU Human Resources at [email protected] or call (859)572-5200.Priority Application Deadline February 15, 2021.Any candidate who is offered this position will be required to gothrough a pre-employment criminal background check as mandated bystate law. DepartmentSchool of the Arts Full Time or Part Time?Full Time Requisition Number2020F512 Qualifications Commitment to Inclusive Excellence Primary Responsibilities Position Number Quick Linkhttps://jobs.nku.edu/postings/9897 Purpose of Position Job Close Date Preferred EducationMFA Supplemental QuestionsRequired fields are indicated with an asterisk (*).Applicant DocumentsRequired DocumentsCover Letter/Letter of ApplicationCurriculum VitaeReferencesTeaching PhilosophyStatement of Interest In the PositionAdvising PhilosophyDiversity StatementOptional DocumentsOtherlast_img read more

Ag Day draws hundreds of students to Farmington Fair

first_imgStudents tour the barns at the Farmington Fair.FARMINGTON – Elementary students poured into the Farmington Fair by the hundreds on a hot Monday morning with teachers and volunteers in tow, for a dose of education and fresh squeezed applesauce.An annual offering, Agriculture Education Day has been held for nearly three decades at the Farmington Fair. Over time it has expanded from tours of the animal barns and churning butter to include meetings with emergency first responders, educational workshops about erosion and water safety, and visiting the growing collection of historical buildings on the fairgrounds.According to Rosetta White, the executive director of Franklin County Soil & Water Conservation District, the event had more than 1,100 participants, despite hot, humid weather, and close to 50 presenters. Students in grades K through 4 participate in the event.Small groups of students chaperoned by volunteers and school staff visited dozens of stations that featured colorful displays, hands-on activities and free educational materials. In addition, the fairgrounds’ museums and other demonstration sites were open and in full operation for the students to observe and learn.Booths provided samples of locally-produced foods: cheese, blueberries and apple products, as well as plenty of information about how the food was grown, harvested and prepared. Students could be seen churning cream to create butter, and their was a large crowd around the applesauce station. Several other booths focused on safety-minded topics such as proper ATV use. Farmington Fire Rescue, Farmington police and NorthStar had personnel showing off their vehicles and equipment.Across the way, students swarmed over tractors and pulp trucks, while others lined up to visit the red schoolhouse and popular Agriculture Museum. Mike Chase of Alderrun Wood Creations showed off some carved products, while the Western Maine Blacksmiths forged garden tools just beyond wide-eyed students. The Western Maine Beekeepers and maple sap-house drew big crowds.The stalls of the sawdust-packed fairground barns were open, with sheep, pigs, poultry and cows drawing ooh’s and ahh’s from students.At the Western Maine Beekeepers Association tent.A student tries on Farmington Fire Rescue firefighter Patty Cormier’s turnout gear.Students experiment with how culverts work using a sand table and pump.Mike Chase of Alderrun Wood Creations looks at different types of wood with students.Officer Ryan Rosie shows students around a police cruiser.Students churn butter at one of the many workshops held at the fair.Fresh-made applesauce.Students take their seats in the Red Schoolhouse, one of the fair’s multiple historic offerings.Students check out the turkeys in the poultry barn and vice versa.last_img read more

Shumlin says deal to spin off Vermont Yankee relies on too much debt

first_imgSenate President Pro Tem Peter Shumlin today addressed several concerns that Speaker Shap Smith and other legislative leaders have with the Memorandum of Understanding reached between the Department of Public Service and Entergy Corporation regarding Entergy’s petition to spin off Vermont Yankee to a highly leveraged company named Enexus. Earlier this month the Department of Public Service cited this MOU in the reversal of their position on Entergy’s petition to transfer ownership of Vermont Yankee to Enexus and decided to support the proposal. “Vermonters should be deeply concerned by the Department’s support of Entergy’s plan to spin off Vermont Yankee to a highly leveraged company,” said Senator Shumlin.  “While the MOU they have reached with Entergy contains steps in the right direction, Enexus will still be a below investment grade, highly debt ridden company and the decommissioning fund will remain approximately $600 million short of the funds necessary to clean up the plant.”The plan to spin off the plants entails Enexus raising money for the deal by going heavily into debt – bonding $3.5 billion and borrowing over an additional billion. Enexus will then have to put up its assests – the nuclear plants – as collateral for the loans.  The result is that if this deal is approved ownership of Vermont Yankee would pass from a healthy, debt-free, investment-grade company to a weaker, debt ridden and much riskier company.Department officials have claimed that the provisions in the MOU – including a $60 million line of credit that can purportedly be used for decommissioning costs – provide the necessary assurances for them to support the deal.  However, it is not clear that this $60 million lineof credit could be used for decommissioning purposes.   The credit isintended to cover the costs of transitioning the plant from an operating facility to a plant prepared to decommission.  Only money left over from this process could be put toward decommissioning costs.  Even if the full $60 million line of credit was able to be put toward decommissioning, the fund would still be approximately $600 million short of the estimated decommissioning costs of $1 billion.“Rather than addressing the core problems with the deal – Enexus’ bond ratings and the decommissioning fund – the Department of Public Service has settled for Entergy’s promise that Vermont Yankee will be able to borrow more money for its operations from Enexus subsidiaries than it could from Entergy subsidiaries,” said Senator Shumlin.  “At a time when we are digging ourselves out of a recession caused in part by companies and individuals relying on borrowing too much money it seems unwise to place our trust in such a promise.”   Senator Shumlin and Speaker Smith have requested that the Senate Finance and House Natural Resources Committees hold a hearing to further analyze the MOU and its repercussions on Vermont Yankee’s reliability and decommissioning fund.  “It is impossible not to draw parallels between this deal and the sale of our telecommunications network from Verizon to the debt-laden FairPoint,” said Senator Shumlin.  “We can simply not afford another similar mistake that leaves Vermonters paying the bill.”Source: Shumlin’s office. 10.21.2009###last_img read more

BATTLE TESTED: Hiking With the Warrior Pack of Sean Gobin

first_imgSean Gobin was on his third tour in Afghanistan when he embarked on a plan of hiking the Appalachian Trail. The plan was to hike the A.T. between completing his active duty service in the Marine Corps and his enrollment in graduate school at the University of Colorado, and use the hike as a fundraiser for wounded veterans in need of adaptive vehicles.“But the hike became so much more than that,” Gobin says. “It was a really transformational experience for me personally, and I decided right away that I wanted to help other veterans experience the same thing.”After completing his thru-hike in 2012, Gobin founded Warrior Hike, a non-profit that sponsors military vets back from active duty who want to tackle a long trail. Gobin sets them up with gear, money and support in hopes they’ll have the same positive experience that he had on the A.T.“Active duty soldiers are either training for deployment or on deployment. We never have time to decompress or process the experiences we have,” Gobin says. “All this trauma makes its way to the surface when we come back home, which is why you see an epidemic of PTSD. Hiking eight hours a day gives your brain time and space to process all of your experiences. That active thinking and processing helps come to terms with any trauma you faced.”Gobin and Warrior Hike helped 14 veterans hike the A.T. in 2013, and expanded the program last year to include the Continental Divide Trail and the Pacific Crest Trail. This year, Warrior Hike will support 30 vets hiking six different long trails across the U.S.Veterans are able to develop strong bonds with other soldiers during the course of the thru-hike, while also slowly re-socializing back into “normal society,” says Gobin. “Some of these veterans saw the worst of people overseas. To have this exposure to all these wonderful, helpful people who support thru-hikers rekindles a basic respect for humanity.”During Gobin’s hike with each soldier, he teaches them the lessons he learned the hard way on his own thru-hike.“I had no experience in long distance hikes, other than forced marches,” Gobin says. “I started the A.T. with a 47 pound pack, which I thought was ultra-light and took off like a bat out of hell. I forced marched myself for three days, then couldn’t get out of the tent.”Here are five of Gobin’s favorite pieces of gear, in his own words.last_img read more

Double jeopardy: Security not immune

first_img ShareShareSharePrintMailGooglePinterestDiggRedditStumbleuponDeliciousBufferTumblr by: Paul McCormackU.S. criminal law prohibits trying a defendant on the same or similar charges to which they were previous acquitted or convicted. In a way, the same concept used to apply in the security world. Security professionals used to have just one opportunity to “try” a file and determine its “guilt” or “innocence.” If the file was determined to be guilty, or malicious, they blocked its access to the company’s environment. An innocent or harmless file, on the other hand, received safe passage.While this point-in-time approach worked well, modern attackers have evolved their tactics. They learned that they must “appear in court” only once to convince the company of the file’s guilt or innocence.Now, in an effort to pass undetected through an organization’s point-in-time defenses, attackers use tools and tactics designed to ensure that a malicious file appears harmless.Once a file enters the network, security professionals often lack the tools to monitor the file’s behavior. In essence, using the point-in-time model, the security professional cannot retry the file for guilt or innocence.Sophisticated Attackers Know How Your Technology Works To mount its attack, a file must morph from seemingly harmless to malicious when no one is watching. Unfortunately, once a file receives permission to enter the network, often no one is watching, which is exactly what the attacker wants. continue reading »last_img read more