(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.
The UTSA Department of Physics and Astronomy's Curtis Vaughan Observatory will offer free stargazing for the public beginning on top of the 4th floor of the Flawn Science Building. Experienced astronomers will be on hand to show a variety of astronomical objects and answer any questions. This event is free and open to the public, so feel free to invite friends and family.
Curtis Vaughan Observatory
This year's keynote speaker is Donalyn Miller, author of The Book Whisper. The event will feature breakout sessions and a presentation by the Creative Writers from North East School of the Arts. The event is free and open to all teachers from Pre-K through university level. Attendees can earn a certificate for 3 hours of Professional Development Credit.
Riklin Auditorium (FS1.406), Downtown Campus
The UTSA community is invited to attend the 3rd annual Rowdy Gras celebration! This year Rowdy Gras includes a daytime event from 11 a.m. -1 p.m. with a free food tasting and music on the UC Paseo. The main event takes place from 6 - 9 p.m. in the UC Lawn. The event includes free food, live jazz music, activities and giveaways.
University Center Paseo & Lawn, UTSA Main Campus
The UTSA College of Architecture, Construction and Planning’s 2015-16 Speaker Series continues with Dana Cuff, Ph.D., a professor of architecture and urbanism at the University of California, Los Angeles. In her talk, Cuff will discuss new forms of “studio” and new types of practices. Free and open to the public.
Aula Canaria Lecture Hall (BV 1.328), UTSA Downtown Campus
The UTSA Institute of Texan Cultures invites Texas and Texans to the Asian Festival. What began as a traditional family reunion for the Chinese New Year has expanded to include other Asian communities and participants, showcasing their unique culture and traditions.
The UTSA Institute of Texan Cultures
Join the UTSA Department of Interdisciplinary Learning and Teaching in celebrating interdisciplinary inquiry at the 2016 Interdisciplinary Studies Colloquium. The colloquium will include a panel of faculty and recent doctoral graduate and a showcase of the best IDS undergraduate inquiry projects of the year 2015. The event is free and open to the public.
Business Building (BB 2.06.04), UTSA Main Campus
The UTSA College of Public Policy presents the Dean's Distinguished Lecture Series featuring Dr. Iris Carlton-LaNey, Professor of the School of Social Work at the University of North Carolina-Chapel Hill. Dr. Iris Carlton LaNey will speak to the UTSA community about the role and impact of African-Americans in the social work profession.
Buena Vista Theater (BV 1.326), Downtown Campus
Please join us for a presentation and book signing by Luis Carlos Montalván (Fmr. Capt., USA), author of the New York Times Bestseller Until Tuesday and the international award-winning childrens book Tuesday Tucks Me In. His books will be available for purchase at the UTSA Bookstore. This event is free and open to the public.
Southwest Room (DB 1.124), Downtown Campus
The 12th Annual Black Heritage Gala is a formal event which includes a student performance, keynote remarks by Michael Brown, an award presentation, dinner and dancing. Tickets are $10 for UTSA students and $15 for all other guests. Tickets are on sale now at Roadrunner Express. Contact (210) 458-4770 for more information.
H-E-B University Center Ballroom, Main Campus
The UTSA Institute of Texan Cultures will host a free workshop focusing on teaching Latin American culture and geography for students seeking their teacher certification. The workshop includes free resources for teaching Latin American subject matter as well as presentations on language, identity, music, geography, and political and developmental history, and a special educators’ tour of the museum’s Los Tejanos exhibit. Free with registration.
The UTSA Institute of Texan Cultures (ITC 3.01.02)
Faithful Alabi holds the Raw Teen III American deadlift record
2015 was a significant year for UTSA. As the university moved forward on the road to Tier One research, designations and recruitment of high caliber faculty and students, it also completed its first ever capital campaign. Read about UTSA's accomplishments in the 2015 Year in Review as we look forward to what the next year will bring.
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