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March 2024 M T W T F S S 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
Category Archives: FORT 230
Aerial Photo Scales
Scale of a Vertical Aerial Photo (From Paine Chapter 4 With Elements of Arnold Ch. 1) Scale Classification Small Scale 1:24,000 and smaller Medium Scale 1:10,000 to 1:24,000 Large Scale 1:1,000 to 1:10,000 Very Large Scale 1:1,000 and larger Some useful Scales in … Continue reading
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Satellite imagery for studying smoke effects
This article from September, 2020 describes uses of satellite imagery to study the spread of smoke from wildfires. It showed the GOES West satellite to show fires in Oregon. GOES is the commonly used weather satellite. It has a low … Continue reading
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Maps with Landsat Imagery
These maps of the study points were made with Landsat images taken from the ESRI Landsat Explorer. The Landsat imagery is considered medium resolution and is designed to show a larger area. Most of the bands are 30 meter resolution. … Continue reading
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False Color and True Color Comparison
These two maps compare scenes of the Birch Run area with NAIP 2017 imagery.
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.
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
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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