![]() It was immediately exciting to the kids." "Aįew weeks after that, we began to get requests from all over New Hampshire for copies Understanding of what was going on in their surrounding area," Landgrebe says. ![]() "The students analyzed the data from the area they just observed, so they had a better He gave them Landsat data of the area and a copy of MultiSpec. Students first made field observations, then Rock brought them back into the lab, where Students in which they studied the acid rain problem in a forest in their area. Of forestry at the University of New Hampshire, taught a summer program for high-school Schoolchildren began using MultiSpec about four years ago when Barry Rock, a professor Version for free, though the Windows version does not yet have all the capabilities "Now, we have MultiSpec up on the Web where anyone can download a Macintosh or Windows Students and all students at the K through 12 level," Landgrebe says. "Our system is unique in that many of the current data analysis systems require moreĮxpensive computer hardware to run, which is out of reach for many college-level Landgrebe and his research associate Larry Biehl originally developed MultiSpec aboutĮight years ago as a convenient, inexpensive and easy-to-use tool for earth scientistsĪnd environmental scientists to analyze their own data on Macintosh computers. "MultiSpec does all that for you," Landgrebe says. Those observations with satellite images from the same area, the scientist can lookĪt satellite data from a larger area and determine whether the vegetation there also Who develops techniques and instruments for remote sensing.įor example, if a scientist observes trees damaged by acid rain, and then matches He is a Purdue professor of electrical and computer engineering "Knowing the characteristics of a relatively small area of land, and how those characteristicsĪre represented in the satellite images, scientists can then look at satellite imagesįrom a much larger, surrounding area and extrapolate what the conditions in that area are, without having to make extensive, time-consuming field observations," Scientists or students then compare the satellite images with field observations taken on the ground, such as types of land cover and species of vegetation. Such as Landsat, and creates an image that can be displayed graphically on a computer. ![]() The computer program, called MultiSpec, analyzes data gathered by earth-orbiting satellites, ![]() Helping scientists collect environmental data. University, schoolchildren around the world are learning about the environment while Using satellites and a computer program developed at Purdue Computer program helps children, scientists study environment Purdue NewsĬomputer program helps children, scientists study environment ![]()
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