Wednesday, January 19, 2011

Google Earth & Geospatial Projects on the Shenandoah Valley Event

Mapping Historical Resources, Harrisonburg, VA. - Kevin Borg

 Borg decided to use representational images of Harrisonburg, Virginia for his presentation. He did this through blue print maps. These visuals came from the Sand board map company. His goal is to give students and citizens of the community a better understanding of the area. The images that he presented represent the history and geography of Harrisonburg. The images are an accurate representation of the area; you can use Google earth to look at the area in the past and the present. I was able to get a better understanding of the subject, by this feature on Google earth. Google earth and photo shop are most likely where the images came from. He used a projection screen to display them. The size of this display screen affects the quality of the images, as well as the mega pixel capacity of the equipment. Images from 1912 were not represented in this presentation. The public view on these images was not included in this presentation either. Some vocabulary that I learned from Borg was GIS, which is a map making program, and Geo tip which is a tip file with location embedded in it.

Interactive Geologic Maps of Virginia and the Sheandoah Valley Region- Steve Whitmeyer

Whitmeyer chose to use representational images of Virginia and the Shenandoah Valley for his presentation. His goal is to integrate as much geologic and mineral information into his map as possible. Whitmeyer, his team, undergraduate students, and Google earth is where the images came from. I believe the purpose of this map is to create a geologic template of Virginia and the Shenandoah Valley for both the past and the future. Whitmeyer’s target audience is students and the citizens of this area. These maps will help them become more aware of Virginia as a whole. People can also figure out details on Google earth that they usually would need to travel to find out. For example, people can now find caverns on these geologic maps from their home. The maps are an accurate representation of the area. You can see Virginia in the past and the present day in great depth. The maps are color coded with detailed information. This presentation increased my understanding on the topic by showing me different types of rocks in the area. For example, I now know that sandstone is located on Massanutten. Google earth pro is most likely where the images came from, and he displayed them on a projection screen. The quality of the images shown is affected by the size of the display screen and the equipment’s mega pixel capacity. Whitmeyer did not mention whose voices are heard and unheard in the presentation nor did he touch on how the meanings of the visuals are affected by what is not shown. During his presentation I did learn a couple new vocabulary words. The first is geologic maps, which are maps that are color coded to show great depth of an area. People can also explore the areas past and present day data on these maps. The second new term I learned is cross sections, which is a vertical slice in the ground to show what is going on in the third dimension.

1 comment:

  1. Liz, thank you for your thoughtful posts about our two Geospatial presenters, and for incorporating new terminology.

    Sometimes the maps included links to additional explanations and/or resources. Do you think that these professors could influence viewers by removing certain parts of the maps - that meaning might change as a result?

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