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The Honolulu Advertiser

Updated at 2:51 a.m., Sunday, May 13, 2007

Forum to discuss laser-generated topographic images

Advertiser Staff

HONOLULU -- The application of a cutting-edge technology that is reinventing the science behind natural resource management decisions is the topic of a free public presentation, at 2 p.m. on Monday, May 14, at the Hawaii State Capitol auditorium.

The presentation is co-sponsored by the Hawaii Statewide GIS Program, Department of Land and Natural Resources (DLNR) Division of Forestry and Wildlife, and Hawaii Geographic Information Council.

Dr. Greg Asner, of the Carnegie Institute and Stanford University will speak on new technology that combines a laser-based system (LIDAR) of creating topographic images, and hyperspectral imagery.

The presentation is geared for a lay audience as well as policy-makers, natural resource managers, land use planners and GIS/remote sensing professionals.

Now becoming a major factor in shaping management actions for terrestrial to marine environments, this innovative system is capable of capturing detail extending from the forest canopy to the ocean floor, and is useful for modeling forest, hydrological, and marine cycles and ecosystems.

Allan Smith, interim chairperson for DLNR, said, "Managing Hawaii's natural resources is challenging. Every day, we are called upon to protect the forests, rivers, reefs, plants, animals and the cultural heritage of these precious islands. The public expects us to base our policies and actions on the best science that is available to us.

"In Hawai'i, we are fortunate to be a part of one of the most significant technological advances of our generation, called the Carnegie Airborne Observatory (CAO). This brand new technology, being developed right here in Hawaii, is the most significant new tool since the advent of aerial photography a century ago," Smith said.

The Carnegie Airborne Observatory combines several cameras which are mounted in an aircraft which is flown over the landscape to produce three-dimensional images of the forest canopy, the earth, and everything in between. The instruments are so precise that they can now measure the height of individual trees, the distribution of invasive weeds in the understory, and geological formations which had previously been undetectable from the air.