Author Archives: pel2

True Color Images Comparison

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False Color and True Color Comparison

These two maps compare scenes of the Birch Run area with NAIP 2017 imagery.

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Remote Sensing Study Sites 2019

These are the sites we will be using to compare different types of imagery for FORT 230 in 2019. And adding the ArcGIS Online version.   

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Thorn Craig Bird Sanctuary

This area in Lewiston, Maine is a favorite for hiking and observing nature. It’s near the city, but seems like it is way out in the country.

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Back to the Drone

Today I started using the drone again. I did a demonstration for the Class of 1958 reunion. When I tried using the drone yesterday I had all kinds of problems, which led to two broken propellers! But I got it … Continue reading

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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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Introduction to Remote Sensing Study Sites Fall 2018

We visited the sites on Monday, 8/27. It was a very, very hot and humid day! This year I added Pearl Springs instead of the Ralph Brock seedling orchard and golf course. It’s good to switch from time to time.

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Pennsylvania Forests from the Air

Presentation for the Penn State Mont Alto Offered Student Reception, April 7, 2018 Foresters spend a lot of time in the field studying forest conditions and carrying out management activities from tree planting to timber harvesting. It is also important … Continue reading

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