Exercise #05

 

Purpose

Gain experience with processing 1:100,000 scale DLGs and working with GPS datasets

Discussion

Thus far we've only been working with 7.5' quads (1:24,000).  I think there is a push towards replacing these 1:24,000 scale maps with 1:100,000 scale maps but Kees DeJong disagrees with me (and may well be right).  In any case, I think the USGS has a nearly complete set of 1:100,000 scale DLGs on their FTP site (edcftp.cr.usgs.gov).  In this exercise you'll use these maps in conjunction with a set of GPS readings.

Deliverable

Right-click here and save the GPS data set to your local machine.  Make a shapefile from it and add it to an ArcMap project.  Overlay a the US map from the ESRI collection showing the names and foot prints of the 1:100,000 quadrangles.  Down load the 1:100,000 hypsometry and road dlg's from the US GeoData site.  Make mosaics of the roads and hypsometry, export them as shapefiles and bring them into ArcMap.  Overlay your GPS track.  Create a clipping file to outline the travel route.  Show:

Print your maps on 11" x 17" paper.

  1. Where did the GPS travel?

In addition for those of you taking the course for 3 credits, please right click here and save the GPS dataset to your local machine.  Create a shapefile from the data and overlay it on the USA Cities and Roads datasets.  Show:

Print your maps on 11" x 17" paper.

  1. Where did the GPS travel?