first_img Published: Sept. 14, 2005 Note to Editors: The Hurricane Katrina image can be downloaded at http://ccar.colorado.edu/~leben/katrina_path.pdf. An image produced by a University of Colorado at Boulder team shows the wind speeds of Hurricane Katrina increasing dramatically as it passes through the warm waters of the Gulf of Mexico’s Loop Current toward the Gulf Coast in late August. Processed at CU-Boulder’s Colorado Center for Astrodynamics Research, or CCAR, the image was produced with data from four satellites that use altimeters to measure sea-surface height to an accuracy of less than one inch. The researchers extrapolated ocean temperatures from subtle height changes in the water measured by altimeters bouncing microwave pulses from the satellites to the ocean surface and back, said aerospace engineering Associate Research Professor Robert Leben of CCAR. The sea-surface height image shows the warm Loop Current standing 20 inches to 30 inches higher than the surrounding water, said Leben. As Katrina passed over the Loop Current, it gained a huge amount of energy from the unusually warm waters that subsequently increased its maximum winds, said Leben. The storm evolved from a Category 3 hurricane to a Category 5 hurricane in just nine hours by converting heat from the Loop Current into energy, he said. “A hurricane is like a steam engine,” said Leben. “The more heat that is put into it, the faster it is going to run. When I saw the predicted storm track over the Loop Current, I became concerned we might see a doomsday scenario.” In the Gulf of Mexico, there is a tight correlation between the sea-surface height measured by the satellites and the temperature of the waters, said Leben. “The higher the sea-surface is above the mean, the deeper the warm water underneath it,” he said. According to CCAR Director George Born, an aerospace engineering professor who works with Leben, the conditions in the Loop Current were unusual. “Ordinarily, the Loop Current does not intrude this far north and west into the Gulf,” Born said. “If it had not, the storm would not have gained such intensity.” The CCAR researchers used data from the U.S./French TOPEX/Poseidon and Jason-1 satellites, as well as the U.S. Navy’s Geosat Follow-On satellite and the European Space Agency’s Envisat satellite. They then combined the data with hurricane wind speed and position data from the National Oceanic and Atmospheric Administration to produce the unique image, Leben said. More than 100,000 images from the CCAR Web site, which is maintained primarily by CU-Boulder undergraduates, were downloaded last year by federal agencies, private customers and the public, said Born. The center produces daily maps of changing ocean currents around the world for governments and private businesses. The CCAR Web site for mapping ocean currents and eddies in the Gulf of Mexico is funded primarily by NASA’s Jet Propulsion Laboratory and is used by petroleum corporations as well as educators and the general public, said Leben. Since May 2005, satellite ocean-current maps generated by CCAR have been used to support a bluefin tuna tagging program by New Zealand’s Ministry of Fisheries, helping scientists locate prime tuna habitats for a tag-and-release program. The CCAR maps illuminate “cold-core” eddies where the fish congregate, helping the government better understand the relationship between sea-surface heights and the distribution and migration of the tuna, Leben said. The group also has been providing ocean-current maps in the Gulf of Mexico to help marine-mammal researchers locate and count sperm whales. The sperm whales often congregate in nutrient-rich eddies near the edge of the Gulf’s Loop Current where squid – their primary food source – are plentiful, Leben said. Two years ago CCAR ocean-current maps helped a private oil company find a suitable towing route through the Gulf of Mexico for a submersible drilling rig used in deep water oil and gas exploration. The company avoided problematic eddy currents and took advantage of beneficial eddies, reducing transit time by 50 hours on the 400-mile journey and saving the company $650,000 in rig downtime and towing costs. CCAR faculty and students focus on research in astrodynamics, satellite meteorology, oceanography, geodesy and terrestrial vegetation studies. Share Share via TwitterShare via FacebookShare via LinkedInShare via E-maillast_img read more

first_imgMADISON, Wis. – Dane County authorities say a drunken man stole an ambulance from a ski area with the patient still inside. The Dane County Sheriff’s Department says Fitch-Rona emergency responders were treating a patient in the back of the ambulance at the Tyrol Basin Ski and Snowboard Area in Mt. Horeb on Monday night. A 24-year-old Illinois man got into the vehicle and drove it around the parking lot. Dane County Sheriff’s spokeswoman Elise Schaffer says police officers from Mt. Horeb stopped him but she didn’t have any information on how they did it. Dane County Sheriff’s deputies arrested the man. Fitch-Rona Emergency Medical Service Deputy Chief Dale Dow says the ambulance’s emergency brake was on and paramedics were still in the back of the vehicle. He says he’s not sure what happened after that and declined further comment.last_img read more

first_imgWhile seeking to emulate Ronaldo’s achievements in Manchester, Dalot admits it was the presence of Mourinho in the United dugout that convinced him to make a move from Porto.He added: “Jose was a big influence on me coming here.“He was very important. His history speaks for itself, the way he is coaching and the way that he has made football change.“It is the fact that is he is Portuguese too. “The relationship that he has with the players is very good, and it was quite impressive to me.“He pushed me to come here and the way that he believed in me was very good. That is why I am here. He is a big reason why I came.”Dalot was nursing a knock when linking up with United and has been eased into life in new surroundings, taking in just two outings, in the Champions League and Carabao Cup, so far. He is following in some illustrious footsteps, with United having benefited considerably from the presence of Portuguese figures down the years.Jose Mourinho is currently at the helm, while Ronaldo landed the first of his five Ballons d’Or during his time in England.Dalot admits to being inspired by a former United favourite, telling MUTV of his own ambition: “Cristiano, I don’t need to describe him because you already know him.“For me, since I remember, he was the inspiration to play football and of course, if you asked me if the fact he played here was also an influence to come, then of course I say yes.“The way he played here, the way he developed, was unbelievable. I want to make that step too, to improve and play for many, many years here.“He is an inspiration for everyone, for every player, for every young player.“To have a player like that in the world, we just have to enjoy it for as long as he stays with us, playing and giving us the opportunity to enjoy his football.“It was a proud few years for Manchester to have him here and, hopefully, one day the United fans will say it was good for them to have Dalot here.” Diogo Dalot is looking to make a similar impact at Manchester United to that previously enjoyed by countryman Cristiano Ronaldo.The 19-year-old defender completed a £19 million ($24m) switch to Old Trafford over the summer. Getty https://images.daznservices.com/di/library/GOAL/70/eb/diogo-dalot-miralem-sulejmani-man-utd-young-boys-19092018_ru7ys0yx5us51922cchuwh0xg.jpg?t=-213274675&w=500&quality=80last_img read more

first_imgOSBORN, Mo. (Oct. 23) – Today (Wednesday) is the final day to take advantage of early pre-entry for the first ever Missouri IMCA Nationals on Oct. 25-26. Jet Racing has also provided several gift certificates to be awarded on race day. Drivers can pre-enter here: https://www.myracepass.com/register/?n=17636. Modified and Sprint Car pre-entry is $60 and Stock Car and Sport Mod pre-entry is $50. After today’s deadline passes, entry increases to $100.center_img The event at US 36 Raceway features IMCA Modifieds, IMCA RaceSaver Sprint Cars, IMCA Sunoco Stock Cars and Karl Kustoms Northern Sport Mods and is sponsored by Westfall GMC, Timberline Trading, NAPA Auto Racing and Boller Motorsports. Friday is practice night and racing will take place on Saturday. The pit gates open at 11 a.m. on Saturday, hot laps are at 1 p.m. and racing starts at 2 p.m. Tickets are $20 for general admission and children 12 and younger are free. More information on the event is available at http://www.us36racewaydirttrack.com/driverinfo/.last_img read more