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/Intro-aerial-photos-notes.htm Just images
- http://www.personal.psu.edu/pel2/FORT230/Photo-Recon-Lab.htm obsolete lab
Each of the sites we visited have grown in so much since I last visited them two years ago, especially the Birch Run site.
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 sites using different types of remote sensing imagery.
Birch Run Reservoir
This was the old site of the Chambersburg Reservoir. The dam was breached and partially removed in the early 2000’s. Since then there have been a significant number of forest plantings on the site. The stream has undergone significant restoration to improve it as a fishery. The surrounding forest is a mixed hardwood and pine forest. Many old pines can be seen poking through the canopy.
Waynesboro Watershed / Chestnut Planting
This site was previously a private farm. It is part of the Waynesboro Watershed property. It has had many experimental plantings and treatments over the years. Today most of the site is covered by a loblolly pine plantation and a fenced-in American Chestnut test plantation. There is also a mature white pine planted stand. It is surrounded by a mixed hardwood forest and private homes.
The reservoir is thirty acres in area and extends north of the earthen dam. The northwest side was heavily clearcut in the 1970’s leaving a small strip of trees along the shore, but appears to have largely grown in with a uniform stand of hardwoods. The rest of the site is surrounded by mixed hardwood forests. The grassy covering of the dam and the field below it are unique features within the forest.
Seed Orchard/ Golf Course
This site is one of the most unique parts of the Michaux State Forest. It is the only place where a nine-hole golf course sites next to a seed orchard. The seed orchard contains various tree plantings where the trees have been lopped to make it easier to collect seeds. The golf course contains various kinds of turf. The area around the golf course has been kept in a park-like condition with many pine trees. The entire site is on a plateau at the top of the valley.
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 is a link to an Idaho website that aggregates reports on weather conditions. It uses an embedded Google Map overlain with data.
I got this image on Facebook showing the western hemisphere. I couldn’t find the web site, but I was able to download the image. Here is the caption from NASA:
NOAA’s GOES-East satellite captured this stunning view of the Americas on New Years Day, Jan. 1, 2015 at 14:45 UTC/9:45 a.m. EST. The data from GOES-East was made into an image by the NASA/NOAA GOES Project at NASA’s Goddard Space Flight Center in Greenbelt, Md.
GOES satellites provide the kind of continuous monitoring necessary for intensive data analysis. Geostationary describes an orbit in which a satellite is always in the same position with respect to the rotating Earth. This allows GOES to hover continuously over one position on Earth’s surface, appearing stationary. As a result, GOES provide a constant vigil for the atmospheric “triggers” for severe weather conditions such as tornadoes, flash floods, hail storms and hurricanes.
And here is a link to the Official GOES image gallery: http://goes.gsfc.nasa.gov/
The following video from The Atlantic Monthly explains why the ROYGBIV division of the visible color spectrum is arbitrary. This is interesting to think about when dealing with different types of aerial photo imagery. We always need to create categories to understand the data we are trying to analyze.
In Aerial Photo Interpretation I have assignments where the students need to embed a map from Google maps into their report. In WordPress it has been working fine for me, but not for the students. This was quite mystifying!
I asked Nikke Moore at ITS Training Service if she knew what was going wrong. She didn’t know, but asked her colleagues. I got word today that Jetpack has to be on to be able to embed the maps. So, we will try it at next week’s class. It makes sense, since that was the only difference between my blog setup and the students. Thanks Nikke!
Here is a map of the four sites that we will be using to study how the appearance changes with different kinds of imagery over the course of the semester.
Here is the view north from the dam at the Waynesboro Reservoir.