UNews - Satellite imaging

Tennant, Johnson on Venture Top 50 list

trevor.kenney — Thu, 05 Jul 2012 15:31:57 +0000

A former ��Ѹ��Դ��߿�Ƭ of Lethbridge president and a U of L alumnus who parlayed his geography studies into a satellite imaging company with worldwide influence are among Alberta Venture Magazine's 50 Most Influential People in the province for 2012.

The annual collection of people from all walks of life provides a snapshot of the province's business, government, arts, culture, education and entrepreneurial communities.

President Emeritus Dr. Howard Tennant led the U of L from 1987 to 2001 and since his retirement has remained a member of the Faculty of Management – balancing his academic work with service to a number of regional, provincial and national boards and organizations.

In 2011, Tennant co-chaired the Alberta Environmental Monitoring Panel, a committee charged with making recommendations to create a world-class environmental monitoring system for the province.

U of L alumnus and CEO of BlackBridge Geomatics, Ryan Johnson (BSc 98, MSc 00, Geography) has taken his interest in imaging literally out of this world. While in school, Johnson founded a company that has since grown to worldwide influence as a leading provider of optical satellite imaging. Through the acquisition of a German company, Blackbridge is now the world's fourth largest private owner of space-based satellites.

As well as partnering with the U of L on imaging education and equipment use, Blackbridge is investing in technology to support high-tech startups at tecconnect, a new facility in Lethbridge that will serve as an incubator for companies in the information and communications technology sector.

On the forefront of an emerging science

trevor.kenney — Tue, 20 Dec 2011 22:05:42 +0000

Humans have long wished to see beyond what our limited vision permits. For proof, consider the invention of microscopes, telescopes and satellites. Today at the ��Ѹ��Դ��߿�Ƭ of Lethbridge, researchers are using state-of-the-art digital imaging technologies to view even more areas – within the body and across the planet – that would otherwise be inaccessible to mortal eyes. Along the way, vast amounts of data are being collected.

"Solutions to the world's biggest problems can be resolved with high-quality, reliable data," says Dr. Daniel Weeks, the U of L's vice-president (research). "Our researchers are gathering, analyzing and making data more useful so important decisions can be made faster and more easily."

The emerging science of digital imaging is being pushed by researchers across disciplines at the ��Ѹ��Դ��߿�Ƭ of Lethbridge.

For example, using sensors to acquire information about the Earth's surface (a process called remote sensing) can help farmers evaluate the health of their crops. In medicine, similarly, magnetic resonance imaging, which produces 3-D images of soft tissue, can enable doctors to assess a patient's brain after a stroke.

For these reasons, and many more, imaging was named one of the top 20 greatest engineering achievements of the 20th century by the National Academy of Engineering in the United States. Indeed, imaging is effecting enormous change in multiple fields. In recent years, the U of L has attracted numerous international imaging-science researchers in such diverse disciplines as physics, astronomy, kinesiology, geography, neuroscience and new media. As a result, the ��Ѹ��Դ��߿�Ƭ identified imaging as a key area for growth.

There are many on-campus facilities dedicated to supporting imaging research at the U of L. They include two remote-sensing laboratories, a brain-imaging centre and a soon-to-be completed and unique-in-Canada facility for calibrating remote-sensing instruments. Also, the ��Ѹ��Դ��߿�Ƭ is home to a satellite-receiving station that is operated in conjunction with Iunctus Geomatics Corp., founded by U of L alumnus Ryan Johnson (BSc '98, MSc '00).

Two researchers benefiting from those facilities are Dr. Craig Coburn of the Department of Geography and Dr. Albert Cross of the Departments of Neuroscience, and Physics and Astronomy.

Coburn is finding new ways to solve problems with, and extract information from, remotely sensed data. He has built remote-sensing instruments for such clients as the U.S. Naval Research Laboratory and the U.S. Army Corps of Engineers. And while the official use of the instruments is classified, Coburn speculates their job may be to spot disturbances in soil. This data could indicate the presence of landmines, for example.

"Imaging is about more than pictures," says Coburn, reflecting broadly on the field. "These are scientific-grade research instruments floating in space and they can provide a lot of valuable information if we know how to render the image."

The same is true of neuroimaging instruments, says Cross. "Using functional magnetic resonance imaging (MRI), we can track activity in the brain and unravel how the brain is organized."

An MRI physicist, Cross is developing new, minimally invasive techniques for neuroimaging. Using lab rats, Cross is studying the efficacy of manganese as a way to produce contrast changes in regions of the brain that correspond to prior experiences during MRI scans.

Imaging science can effect tremendous change in many fields, Weeks believes. On that note, the ��Ѹ��Դ��߿�Ƭ plans to broaden the impact of its imaging science research. "We're reaching out to potential partners in China, India and Germany, for instance. By finding new collaborators and exploring new avenues of discovery together, we can further increase the ��Ѹ��Դ��߿�Ƭ's global footprint in this exciting area of investigation."

Extraterrestrial

Long before Star Trek popularized the phrase, "To boldly go where no man has gone before," humanity has been interested in the cosmos. But sending people deep into space is dangerous and expensive. Fortunately, extraterrestrial imaging enables us to find faraway stars, galaxies and planets, and puts the universe in closer reach.

Neuroimaging

We already have proof that the brain is a powerful tool. You do, after all, remember the location of your keys (most days). But in what areas of the brain does thinking actually happen? And how does the whole system work? By providing images of the brain as it goes about its business, neuroimaging offers important insights about the process of cognition.

Motion capture

Movement is something many of us take for granted. But researchers know there's more to human motion than heaving yourself out of bed, running around with a to-do list and then crashing on the couch. What are the subtle mechanics of motion? Knowing this information will advance our understanding of how bodies move, and will benefit everything from the fine arts to the field of kinesiology.

Atmospheric

The air that surrounds our planet may appear clear some days and a smoggy soup on others. But no matter the atmosphere's appearance, there's always a mix of gases up there. Some have little impact on our weather. Others, like carbon dioxide, are dramatically changing our climate. Atmospheric imaging researchers study the composition of the Earth's atmosphere and detect the trace gases that can be climatic game-changers.

Satellite

We've come a long way from the days of setting out on long expeditions to record the contours and features of the land. Today, we look above to satellites for a big-picture view of the planet. But small details are significant, too. For instance, what's happening on the Earth's surface in each region of the world? Satellite imaging enables us to see such phenomena as deforestation and the development of deserts.

Rethinking the environment

trevor.kenney — Thu, 29 Oct 2009 16:55:31 +0000

Dr. Christopher Hugenholtz and his research team are discovering that wind erosion is essential to preserving a balanced ecosystem.

Thoughts of wind erosion bring to mind vivid imagery of the 1930s dust bowl – wind ripping away valuable topsoil as it blackens prairie skies and paints a picture of agricultural devastation.

Dr. Christopher Hugenholtz, a ��Ѹ��Դ��߿�Ƭ of Lethbridge geography professor, is creating a new portrait of wind erosion by examining its positive role in sustaining the biodiversity of prairie grassland ecosystems.

"Wind erosion has been given a bad rap, and rightfully so because it removes and relocates valuable soil constituents for agriculture and degrades air quality with fine particulate matter," says Hugenholtz.

What he and his research team are discovering, however, is that wind erosion is also essential to preserving a balanced ecosystem. Sand dune areas serve as a habitat for a variety of sensitive and endangered plant and animal species that need bare, sandy surfaces and a level of wind erosion to survive.

Through the innovative use of satellite imaging, Hugenholtz has observed a dramatic decrease in the number of active sand dunes across the southern prairies of Alberta and Saskatchewan.

"We're seeing a step-by-step reduction in the number of species in a particular area, and we don't know what that's going to do in the long term to other species," says Hugenholtz.

Years of managing the dune areas by reducing stresses such as fire, the roaming of bison and the grazing of cattle have encouraged the growth of vegetation. Reduced wind erosion levels are a direct result.

"We need these disturbances to maintain biodiversity and keep the ecosystem functioning," says Hugenholtz.

His work aims to develop unique strategies for conserving habitat through a better understanding of wind erosion controls and processes.

"We want to provide land users with some adaptive strategies to manage the land with a goal of maintaining biodiversity," says Hugenholtz.

Rethinking the environment

trevor.kenney — Mon, 27 Oct 2008 16:35:54 +0000

Dr. Christopher Hugenholtz and his research team are discovering that wind erosion is essential to preserving a balanced ecosystem.

Thoughts of wind erosion bring to mind vivid imagery of the 1930s dust bowl – wind ripping away valuable topsoil as it blackens prairie skies and paints a picture of agricultural devastation.

Through the innovative use of satellite imaging, Hugenholtz has observed a dramatic decrease in the number of active sand dunes across the southern prairies of Alberta and Saskatchewan.

"We're seeing a step-by-step reduction in the number of species in a particular area, and we don't know what that's going to do in the long term to other species," says Hugenholtz.

"We need these disturbances to maintain biodiversity and keep the ecosystem functioning," says Hugenholtz.

His work aims to develop unique strategies for conserving habitat through a better understanding of wind erosion controls and processes.

"We want to provide land users with some adaptive strategies to manage the land with a goal of maintaining biodiversity," says Hugenholtz.

UNews - Satellite imaging

Tennant, Johnson on Venture Top 50 list

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On the forefront of an emerging science

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Rethinking the environment

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