Remote Sensing and Geographic Information Systems
-
Upload
aspen-ellison -
Category
Documents
-
view
19 -
download
0
description
Transcript of Remote Sensing and Geographic Information Systems
![Page 1: Remote Sensing and Geographic Information Systems](https://reader035.fdocuments.in/reader035/viewer/2022062721/568137e8550346895d9f979f/html5/thumbnails/1.jpg)
Remote Sensing and Geographic Information Systems
An introduction to the world of mapping your watershed!
![Page 2: Remote Sensing and Geographic Information Systems](https://reader035.fdocuments.in/reader035/viewer/2022062721/568137e8550346895d9f979f/html5/thumbnails/2.jpg)
What is remote sensing?
• Remote sensing is the use of data collected by precision instruments such as cameras, probes, and sensors that are not being operated directly by a technician in the field
![Page 3: Remote Sensing and Geographic Information Systems](https://reader035.fdocuments.in/reader035/viewer/2022062721/568137e8550346895d9f979f/html5/thumbnails/3.jpg)
Why is remote sensing important for us?
• The world is such a vast place that the ability to understand how ecosystems like an estuary or watershed work require scientists to seek and use large data sets to interpret changes
![Page 4: Remote Sensing and Geographic Information Systems](https://reader035.fdocuments.in/reader035/viewer/2022062721/568137e8550346895d9f979f/html5/thumbnails/4.jpg)
What are orthographic photos?
• Orthographic photos are aerial photos taken at an absolute right angle to the earth’s surface.
• This type of photo is useful because it can be used for exact measurement, and accurate interpretation of many features of the landscape and waterways.
• Sets taken overtime help to track changes in the landscape
![Page 5: Remote Sensing and Geographic Information Systems](https://reader035.fdocuments.in/reader035/viewer/2022062721/568137e8550346895d9f979f/html5/thumbnails/5.jpg)
Aerial photo flyover
![Page 6: Remote Sensing and Geographic Information Systems](https://reader035.fdocuments.in/reader035/viewer/2022062721/568137e8550346895d9f979f/html5/thumbnails/6.jpg)
An orthographic aerial photo of Charleston, Oregon
![Page 7: Remote Sensing and Geographic Information Systems](https://reader035.fdocuments.in/reader035/viewer/2022062721/568137e8550346895d9f979f/html5/thumbnails/7.jpg)
![Page 8: Remote Sensing and Geographic Information Systems](https://reader035.fdocuments.in/reader035/viewer/2022062721/568137e8550346895d9f979f/html5/thumbnails/8.jpg)
What is GIS?
• GIS (Geographic Information System) is a computer-based mapping tool that allows users to manipulate large sets of data as layers or themes.
• These layers appear as graphics on a base layer like a map or orthographic aerial photo.
• Layers can be viewed together or separately depending on the information a viewer is looking for
![Page 9: Remote Sensing and Geographic Information Systems](https://reader035.fdocuments.in/reader035/viewer/2022062721/568137e8550346895d9f979f/html5/thumbnails/9.jpg)
![Page 10: Remote Sensing and Geographic Information Systems](https://reader035.fdocuments.in/reader035/viewer/2022062721/568137e8550346895d9f979f/html5/thumbnails/10.jpg)
![Page 11: Remote Sensing and Geographic Information Systems](https://reader035.fdocuments.in/reader035/viewer/2022062721/568137e8550346895d9f979f/html5/thumbnails/11.jpg)
Simple GIS: Sunset Middle School, Coos Bay, OR
![Page 12: Remote Sensing and Geographic Information Systems](https://reader035.fdocuments.in/reader035/viewer/2022062721/568137e8550346895d9f979f/html5/thumbnails/12.jpg)
Mapping in the classroom
• Google Earth & Maps allows viewers to get a similar view from anywhere in the world!
• We can study the local watershed by identifying waterways, habitat types and land uses from Google images.
• Mapping in a GIS fashion will provide a visual way to easily analyze the surrounding watershed.
• A ground truth will verify some of our work