Posts tagged London
CU women’s b-ball team excited to experience culture of Italy
Aug 13th
The University of Colorado women’s basketball team is taking a 10-day tour of Italy, Aug. 12-21. The Buffaloes are scheduled to compete in four games against teams comprised of players from professional leagues all over Italy. Colorado players, coaches and staff will also have the chance to take in many of the historic and cultural sites of the country. Per NCAA rules, the Buffaloes were allowed to have 10 full team practices leading up to this trip, the last coming Monday morning at the Coors Events Center before heading to DIA later in the afternoon. This trip has been paid for by donors of the basketball program. Italy is eight hours ahead of the Mountain Time Zone.
Colorado Women’s Basketball Itinerary:
Monday, Aug. 12
The team leaves Denver in the evening, and travels overnight to London, arriving Tuesday afternoon.
Tuesday, Aug. 13 — Lake Como
After a brief layover in London, the Buffaloes will arrive in Milan Tuesday afternoon and travel to Lake Como, located in the northern part of the country, near its border with Switzerland.
Wednesday, Aug. 14 — Lake Como
In the shadows of the Rhaetian Alps, the Buffaloes will explore Lake Como, which stretches 75 miles. A boat trip to Bellagio is included in the itinerary. Following the day-long tour, Colorado will head east to Venice in the evening.
Thursday, Aug. 15 — Venice
Colorado spends the day in Venice, including a guided walking tour of the city with stops at St. Mark’s Basilica, St. Mark’s Square and the Rialto Bridge spanning the Grand Canal.
Friday, Aug. 16 — Florence GAME #1 vs. Toscana All-Stars
Colorado travels south to Florence for the first of four its games, scheduled for 7 p.m. local time (11 a.m. MDT). The Toscana All-Stars are comprised of players from Firenze, San Giovanni Valdarno, Pontedera of the A2/B professional level.
Saturday, Aug. 17 — Florence
The Buffaloes remain in Florence for a day of sightseeing in the rolling green hills of Tuscany, the region behind the inspiration for CU’s architectural design.
Sunday, Aug. 18 — Rome GAME #2 vs. Lazio All-Stars
It’s off to the capital city of Rome for a 5 p.m. local time game (9 a.m. MDT. The three games in Rome will comprise of players from Rome, Latina, Santa Marinella of the A2/B professional level.
Monday, Aug. 19 — Rome GAME #3 vs. Lazio All-Stars
Colorado is scheduled to tour the historic sites of ancient Rome including the Coliseum and the Roman Forum. Game time Monday is scheduled for 7 p.m. local time (11 a.m. MDT).
Tuesday, Aug. 20 — Rome GAME #4 vs. Lazio All-Stars
The Buffaloes are scheduled to tour the Vatican Museum and St. Peter’s Basilica before tipping off their final game at 7 p.m. local time (11 a.m. MDT).
Wednesday, Aug. 21
Travel day back to Colorado.
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CU Buffs tracksters ready for World Championships
Aug 9th
BOULDER—University of Colorado senior Shalaya Kipp is poised to compete at her second major international competition, the 2013 IAAF World Championships in Athletes, August 10-18, in Moscow.
Kipp, the 2012 NCAA 3,000-meter steeplechase champion, qualified for her second U.S. team after placing third at the USATF Championships in June. The Salt Lake City native made her first international team in 2012 when she qualified for the Olympic Games in London.
Kipp enters the world championships fresh off of her best performance of the season, placing fourth with a season-best time of9:37.23 at the Diamond League Meet in Monaco. The time was just shy of her personal best (9:35.73) which she ran at the 2012 U.S. Olympic Trials.
She is joined at the world championships by two-time Olympian and CU volunteer assistant coach Jenny Simpson. Simpson is the reigning 2011 world champion in the 1,500 and is one of nine Americans who enter the meet as reigning champions. Simpson ran the 1,500 at the meet in Monaco and won her first Diamond League Meet in 4:00.48. She was named the USATF Athlete of the Week for her performance.
Former Buff and three-time Olympian Dathan Ritzenhein is also a member of the U.S. team and will run in the 10,000 at worlds. Ritzenhein finished second at the U.S. championships to advance to Moscow.
Parts of the meet will be televised on Universal Sports and NBC. A complete schedule can be found here: http://buffs.me/13JVOHL.
IAAF World Championships in Athletics (all times Mountain)
Women’s 3,000 Meter Steeplechase
(Shalaya Kipp)
Saturday, August 10, Round 1, 7:20 a.m.
Tuesday, August 13, Finals, 11:25 a.m.
Men’s 10,000 Meters
(Dathan Ritzenhein)
Saturday, August 10, Finals, 8:55 a.m.
Women’s 1,500 Meters
(Jenny Simpson)
Sunday, August 11, Round 1, 12:25 a.m.
Tuesday, August 13, Semifinals, 10:40 a.m.
Thursday, August, 15, Finals, 11:20 a.m.
COLORADO BUFFALOES
Linda Sprouse
Assistant Sports Information Director
Volleyball/Cross Country/Track & Field
University of Colorado
303-492-5626
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CU study: Little Ice Age caused by four massive volcanoes
Jan 30th
New CU-led study may answer long-standing
questions about enigmatic Little Ice Age
A new University of Colorado Boulder-led study appears to answer contentious questions about the onset and cause of Earth’s Little Ice Age, a period of cooling temperatures that began after the Middle Ages and lasted into the late 19th century.
According to the new study, the Little Ice Age began abruptly between A.D. 1275 and 1300, triggered by repeated, explosive volcanism and sustained by a self- perpetuating sea ice-ocean feedback system in the North Atlantic Ocean, according to CU-Boulder Professor Gifford Miller, who led the study. The primary evidence comes from radiocarbon dates from dead vegetation emerging from rapidly melting icecaps on Baffin Island in the Canadian Arctic, combined with ice and sediment core data from the poles and Iceland and from sea ice climate model simulations, said Miller.
While scientific estimates regarding the onset of the Little Ice Age range from the 13th century to the 16th century, there is little consensus, said Miller. There is evidence the Little Ice Age affected places as far away as South America and China, although it was particularly evident in northern Europe. Advancing glaciers in mountain valleys destroyed towns, and famous paintings from the period depict people ice skating on the Thames River in London and canals in the Netherlands, waterways that were ice-free in winter before and after the Little Ice Age.
“The dominant way scientists have defined the Little Ice Age is by the expansion of big valley glaciers in the Alps and in Norway,” said Miller. “But the time it took for European glaciers to advance far enough to demolish villages would have been long after the onset of the cold period,” said Miller, a fellow at CU’s Institute of Arctic and Alpine Research.
Most scientists think the Little Ice Age was caused either by decreased summer solar radiation, erupting volcanoes that cooled the planet by ejecting shiny aerosol particles that reflected sunlight back into space, or a combination of both, said Miller.
The new study suggests that the onset of the Little Ice Age was caused by an unusual, 50-year-long episode of four massive tropical volcanic eruptions. Climate models used in the new study showed that the persistence of cold summers following the eruptions is best explained by a sea ice-ocean feedback system originating in the North Atlantic Ocean.
“This is the first time anyone has clearly identified the specific onset of the cold times marking the start of the Little Ice Age,” said Miller. “We also have provided an understandable climate feedback system that explains how this cold period could be sustained for a long period of time. If the climate system is hit again and again by cold conditions over a relatively short period — in this case, from volcanic eruptions — there appears to be a cumulative cooling effect.”
A paper on the subject is being published Jan. 31 in Geophysical Research Letters, a publication of the American Geophysical Union. The paper was authored by scientists and students from CU-Boulder, the National Center for Atmospheric Research in Boulder, the University of Iceland, the University of California, Irvine, and the University of Edinburgh in Scotland. The study was funded in part by the National Science Foundation and the Icelandic Science Foundation.
As part of the study, Miller and his colleagues radiocarbon-dated roughly 150 samples of dead plant material with roots intact collected from beneath receding ice margins of ice caps on Baffin Island. There was a large cluster of “kill dates” between A.D. 1275 and 1300, indicating the plants had been frozen and engulfed by ice during a relatively sudden event.
Both low-lying and higher altitude plants all died at roughly the same time, indicating the onset of the Little Ice Age on Baffin Island — the fifth largest island in the world — was abrupt. The team saw a second spike in plant kill dates at about A.D. 1450, indicating the quick onset of a second major cooling event.
To broaden the study, the team analyzed sediment cores from a glacial lake linked to the 367-square-mile Langjökull ice cap in the central highlands of Iceland that reaches nearly a mile high. The annual layers in the cores — which can be reliably dated by using tephra deposits from known historic volcanic eruptions on Iceland going back more than 1,000 years — suddenly became thicker in the late 13th century and again in the 15th century due to increased erosion caused by the expansion of the ice cap as the climate cooled, he said.
“That showed us the signal we got from Baffin Island was not just a local signal, it was a North Atlantic signal,” said Miller. “This gave us a great deal more confidence that there was a major perturbation to the Northern Hemisphere climate near the end of the 13th century.” Average summer temperatures in the Northern Hemisphere did not return to those of the Middle Ages until the 20th century, and the temperatures of the Middle Ages are now exceeded in many areas, he said.
The team used the NCAR-based Community Climate System Model to test the effects of volcanic cooling on Arctic sea ice extent and mass. The model, which simulated various sea ice conditions from about A.D. 1150-1700, showed several large, closely spaced eruptions could have cooled the Northern Hemisphere enough to trigger Arctic sea ice growth.
The models showed sustained cooling from volcanoes would have sent some of the expanding Arctic sea ice down along the eastern coast of Greenland until it eventually melted in the North Atlantic. Since sea ice contains almost no salt, when it melted the surface water became less dense, preventing it from mixing with deeper North Atlantic water. This weakened heat transport back to the Arctic and creating a self-sustaining feedback system on the sea ice long after the effects of the volcanic aerosols subsided, he said.
“Our simulations showed that the volcanic eruptions may have had a profound cooling effect,” says NCAR scientist Bette Otto-Bliesner, a co-author of the study. “The eruptions could have triggered a chain reaction, affecting sea ice and ocean currents in a way that lowered temperatures for centuries.”
The researchers set the solar radiation at a constant level in the climate models, and Miller said the Little Ice Age likely would have occurred without decreased summer solar radiation at the time. “Estimates of the sun’s variability over time are getting smaller, it’s now thought by some scientists to have varied little more in the last millennia than during a standard 11-year solar cycle,” he said.
One of the primary questions pertaining to the Little Ice Age is how unusual the warming of Earth is today, he said. A previous study led by Miller in 2008 on Baffin Island indicated temperatures today are the warmest in at least 2,000 years.
Other co-authors on the paper include CU-Boulder’s Yafang Zhong, Darren Larsen, Kurt Refsnider, Scott Lehman and Chance Anderson, NCAR’s Marika Holland and David Bailey, the University of Iceland’s Áslaug Geirsdóttir, Helgi Bjornsson and Darren Larsen, UC-Irvine’s John Southon and the University of Edinburgh’s Thorvaldur Thordarson. Larsen is doctoral student jointly at CU-Boulder and the University of Iceland.
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