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Full-Text Articles in Physical Sciences and Mathematics
An Investigation To Remotely Sense Mineral Leeching Through Soils, Paul C. Shaffer
An Investigation To Remotely Sense Mineral Leeching Through Soils, Paul C. Shaffer
Thinking Matters Symposium Archive
Satellite data on Earth's surface provide a wealth of information on landscape conditions. I use Landsat data to determine an important geologic process that influences the composition of the soils. My project focusses on the experimental hypothesis that we can use plant vigor as a proxy to document mineral washing downslopes through soils. I constructed a Normalized Difference Vegetation Index (NDVI) composite image from Landsat data to help assess vegetation heath in my target location - a national park south of Mount St. Helens. This location was selected because of its steep inclines, dense undisturbed vegetation, and fertile soils. It …
Habitat Fragmenta-On In The Sebago Lake Watershed, Jared Lank
Habitat Fragmenta-On In The Sebago Lake Watershed, Jared Lank
Thinking Matters Symposium Archive
The goal of this research was to evaluate the extent of land use change occurring in the Sebago lake watershed of southern Maine. The primary data set used was Landsat 7 Near Infrared satellite imagery of the region which was analyzed with ESRI’s ArcGIS soQware. Data was clipped to the Portland Water District’s sub watershed shape file and analyzed with the soQware’s image analysis ‘difference’ tool which calculates the differences in pixel values between to raster datasets. The 2013 Landsat reclassifica-on was compared to 1987, 1995 and 2009 reclassifica-ons. NOAA’s Habitat Priority Planner plugin tool was also u-lized in order …