(Nov. 30, 2010)--After spending two months in the Arctic Ocean aboard the Chinese vessel Xuelong or "Snow Dragon," Hongjie Xie, UTSA associate professor of geological sciences, says global warming is both real and imminent. In fact, Arctic ice is melting faster than researchers thought it would.
While much of the global-warming debate has focused on the reasons for global warming and the disadvantages brought on by it, such as the impact on Arctic ecology, marine mammals and indigenous communities, Xie says the Chinese believe it also creates a significant opportunity.
"Global warming in the Arctic is an extremely hot topic in navigation," said Xie, who manages the UTSA Laboratory for Remote Sensing and Geoinformatics. "The Chinese are extremely interested because they and others would be able to sail their cargo ships through the Arctic Ocean to North America and Europe with much reduced cost. At the melting rate we are observing now, they may be able to do so in 30 to 50 years."
"In the past, travelers could only get to the lowest Arctic latitudes in the summer season, but now the ice has melted so much, large ships can navigate into the higher latitudes. Xuelong traveled to 88.4 degrees latitude with no problems. A few years ago, we could not have done that. We would have run into ice blocks three meters or more in thickness."
He notes, however, "While there is a great opportunity, Arctic navigation is a complex issue. Those involved will need to consider a variety of factors such as environmental pollution, oil spills, search and rescue, national security and navigation rights in territorial waters."
Xie and a scholar from the University of Georgia were the only Americans invited to take part in the fourth Chinese Arctic Expedition, a two-month data-gathering trip organized by the Chinese government. The trip served as a fact-finding mission for Xie, who represented the U.S. National Oceanic and Atmospheric Administration's Sea Ice Outlook program. The Chinese focused their research on the mechanisms of sea ice melting, the impact of that melting on the Arctic ecosystem and how it might affect the Chinese climate.
In all, 61 researchers, 54 crewmembers and six Chinese journalists participated in the expedition. They represented France, Finland, Taiwan, Estonia, the United States and numerous Chinese universities and research programs.
So, why does Xie think Arctic sea ice is melting so rapidly?
"It's a positive feedback system," he said. "Sea ice melts both from the bottom up due to increased ocean temperature and from the top down. When that happens, the melted ice leaves more open water, which absorbs more solar radiation and raises the temperature of the water even more. The temperature increase causes even more ice to melt and so on and so forth."
While in the Arctic, Xie took photos, videos and quantitative measurements of Arctic sea ice during his journey. That "in situ" data will be combined with satellite data to help researchers across the world better understand Arctic climate and change.
Xie launched his career in 2002 after earning his doctorate in remote sensing and geographic information systems (GIS) at the University of Texas at El Paso. In 2004, he joined UTSA's faculty. He and world-renowned sea ice scientist Stephen Ackley, a UTSA research associate professor, gained funding from the National Science Foundation Office of Polar Programs and the National Aeronautics and Space Administration Cryosphere Science program.
Since then, Xie and his group have taken two expeditions to Antarctica (2006 and 2007) in addition to his 2010 Arctic expedition. Xie and Ackley will send researchers and students on two additional Antarctic sea ice trips in November and December 2010. Xie hopes to participate in the 2012 Chinese Arctic expedition by sending a couple of UTSA graduate students as well.
Visit the Curtis Vaughan Observatory and see the wonders of the sky over San Antonio with experienced astronomers.
4th floor, Flawn Science Building, Main Campus
A fun and festive evening featuring Corridos from Texas and Northern Mexico sung by AZUL and a reading of new and classic works by Carmen Tafolla, the new State Poet Laureate.
Buena Vista Theater (1.326), Downtown Campus
Listening session will seek input on the places, events and special circumstances that should be considered in determining whether concealed handguns may be prohibited.
John Peace Library, Faculty Center Assembly Room (JPL 4.04.22), Main Campus
This summit is an opportunity to showcase and share the variety of community engagement activities of UTSA students, faculty, and staff. The summit is currently accepting proposals for poster presentations. The Call for Posters deadline is Friday, Sept. 11.
University Center Denman Room (2.01.28), Main Campus
The Mexican American Studies Program will host a screening of this irreverent, entertaining and often disturbing tale that uses both fiction and documentary story telling devices to tear open a painful and long ignored history: the lynching of Mexican Americans in the southwest.
Buena Vista Building Aula Canaria (BV 1.328), Downtown Campus
Join President Ricardo Romo as he gives his address to the UTSA community.
H-E-B University Center Ballroom (UC 1.104), Main Campus
Graduate School representatives from across the country will provide information on options after earning a bachelor's degree. Students, alumni and community members are welcome.
University Center Retama Galleria, Main Campus
The day-long research conference will include a keynote address, faculty and student oral presentations, poster sessions, and an awards ceremony. Lunch will be provided for those who register. Abstract submission deadline is September 20, 2015. Event registration deadline is October 4, 2015.
H-E-B University Center, Main Campus
Kristen Rosen is developing technology to help breast cancer patients’ quality of life
As touch screens and e-books demand more and more attention from both casual readers and scholars, many people say the handwriting is on the wall for the printed page.
At UTSA, the handwriting is on the wall for a library that doesn't have any printed books.
Since March 2010, the bookless library in the Applied Engineering and Technology Building has given UTSA students an innovative way to read, research and work with each other to solve problems.
With ultra-modern furniture and a décor featuring desktop computers, scanners and LCD screens, the AET Library is designed to engage students in an online format. But it also offers group study niches and study rooms with whiteboards and glass walls on which students can write. The space encourages teamwork, communications and problem solving for the next generation of scientists and professional engineers.
Did you know? The UTSA AET Library is the nation's first completely bookless library on a college or university campus. It served as a model for Bexar County's first-in-the-nation public bookless library system and one of its branches, the Dr. Ricardo Romo BiblioTech.
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