Category Archives: FORT 230

Hillshade and Contours

Usually hillshades from a DEM are visualized from the northwest. Here I tried it both from 315 degrees (NW) and due south, 180 degrees. The results are very different. The topography of the lake appears inverted with the azimuth of … Continue reading

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Landsat 8 Imagery

The top map has an overlay of Landsat 8 imagery from April 13, 2016, which was downloaded from the Landsat Look viewer. It used the percent clip enhancement that eliminates the lightest and darkest areas and modifies the colors. Landsat … Continue reading

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October 3, 2018 FORT 230 Class

This video from Oregon State University is one of the best explanations of how to interpret remotely sensed imagery. It talks mostly about aerial photos, but it applies to other kinds of imagery, too. Following are notes on infrared imagery. … Continue reading

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Using a DEM

This map shows contour lines generated from the PASDA 3.2 foot DEM. I used the ArcGIS spatial analyst tool to develop contour lines with a vertical elevation of 20 feet and index contours at 100 feet. I also made two … Continue reading

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Color Imagery Analysis Fall 2017

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Panchromatic Images from Study Sites

 

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Remote Sensing and Aerial Photography Class Presentations

Here are links to old lectures on my Penn State Pass Space. http://www.personal.psu.edu/pel2/FORT230/Forestry Interpretation of Aerial Photos.htm  This uses an old version of web page generated from PowerPoint.  http://www.personal.psu.edu/pel2/FORT230/FilmsFiltersPhotographicProcess.htm  http://www.personal.psu.edu/pel2/FORT230/Intro-aerial-photos-notes.htm Just images   http://www.personal.psu.edu/pel2/FORT230/Multiple-Images.htm  http://www.personal.psu.edu/pel2/FORT230/Notes-Forestry-Uses-Aerial-Photos.htm http://www.personal.psu.edu/pel2/FORT230/NotesStereoscopicViewing.htm http://www.personal.psu.edu/pel2/FORT230/Photo-Recon-Lab.htm   obsolete lab http://www.personal.psu.edu/pel2/FORT230

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Remote Sensing Field Site Visits

Each of the sites we visited have grown in so much since I last visited them two years ago, especially the Birch Run site.

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Remote Sensing Type Study Sites FAll 2015

This fall we are using four sites for the Remote Sensing Type Study Project. We made the first visit on 9/2. Above is a map of the areas visited. During the course of the semester we will look at the … Continue reading

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Wildfire Smoke

This article, from NPR, describes the bad effects of Wildfire smoke. Smoke is a difficult phenomenon to sense with most remote sensing tools. It changes quickly and may not last long. In many ways it’s like sensing other weather phenomena. Here … Continue reading

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