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     2005 June — Vol. XIV, No. 4

Cover Image - June 2005

EOM June 2005 > Departments > My Position Is ...

Editorial

Matteo Luccio

As I edited and reviewed the articles for this issue of Earth Observation Magazine, two broad themes stood out to me: partnerships and sensors. Partnerships between government agencies, private companies, and academic researchers to jointly develop technologies and share data — and complementary sensors for observing, in Carl Sagan's memorable words, our "pale blue dot."

Every single article in this issue describes or cites the product of some kind of partnership or collaboration. Andrews credits the Open GIS Consortium, Inc. — an international, voluntary consensus standards organization — for some of the success of XML as a standard. Kumar and Singh cite the Airborne Visible/Infrared Imaging Spectrometer (AVIRIS), developed at the Jet Propulsion Laboratory, which is managed for NASA by the California Institute of Technology. Lee et al. explain that monitoring hurricanes in the Pacific relies on imagers from at least three U.S. government agencies — NASA, the National Oceanographic and Atmospheric Administration, and the Defense Meteorological Satellite Program — as well as commercial satellites. My write up of FireMapper describes how it was developed by a private company, Space Instruments, in partnership with the U.S. Forest Service, on the basis of work originally funded by NASA and the Defense Advanced Projects Agency. Sheffner cites the Terrestrial Observation and Prediction System (TOPS) — a joint program of researchers at NASA's Ames Research Center and the University of Montana — as an example of NASA's contribution to carbon management. Ambrose and Davis describe the partnerships between so many different agencies that I added a glossary of abbreviations to help you keep track of them. And Stewart's whole article, about CAD and GIS interoperability, is about the merger of not just two technologies but also, increasingly, of two previously distinct user communities.


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As for the sensors, they cover a large segment of the spectrum — the electromagnetic spectrum, that is. As Lee et al. explain, infrared imaging does not penetrate the top canopy of cirrus clouds above a hurricane, and therefore it does not show "the fierce, devastating eye wall hidden well below the canopy" nor the eye, "that area of remarkable calm at the center of the vortex." That task is best handled by a microwave imager. On the other hand, as I explain in my article, infrared sensors penetrate the thick smoke and haze above a forest wildfire, but need to use a narrow band in order not to be saturated by the fire's intense IR radiance.

NASA operates a suite of 30 research spacecraft with more than 100 instruments — many of which can be tuned to observe a variety of chemical and thermal signatures to recognize human activity. Kumar and Singh explain how data from hyperspectral remote sensing, which measures Earth's surface using hundreds of spectral images, are used extensively for exploration geology. Imaging spectrometers, which acquire images from hundreds of contiguous spectral bands simultaneously, can provide data to a vast array of disciplines.

I will not try to come up with some rhetorical sleight of hand to neatly tie up these two concepts, partnerships and sensors. Let me just say that detecting and analyzing patterns is the first step in Earth observation.

Enjoy this issue of EOM and please send me your comments, corrections, and article proposals. End of Article

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