OCE 1001 Homework Assignment #4 – Topography Student Name: Instructions: Read the links in the Topography Drop Box folder in the Chapter 3 Learning Module within your Blackboard course. Below are additional suggestions: 1. Download the word file (Topography.doc) to your hard drive or external drive. 2. Some of you may not have much experience with interpreting topographic maps and bathymetric charts. If you are not familiar with topographic maps then refer to the information in the two links within the Topography Drop Box folder. 3. Print a copy of the worksheet and get a light brown or green coloring pencil. Locate the 0 meter elevation contour line and color all of the areas above sea level; this is elevation greater than 0. Positive values indicate above sea level while negative values indicate below sea level. You should now see the island of Puerto Rico and the Puerto Rico Trough or Trench (Figure 1) as well as the Hawaiian Islands (Figure 3). The depth values are in meters (1 m = 3.284 ft). 4. Find the highest positive values (e.g. maximum elevation) and the maximum water depth values (negative values meaning below sea level) found along the RED straight lines (vertical cross sections) that cross multiple contour lines.The thick straight line is the line of the vertical section or profile. These sections depict the variation in elevation or depth along the line. The panelsA B C and D are their graphic representations. In other words Figure 2 is the graphic representation of the red line in Figure 1 and Figure 4 is the graphic representation of the red line in Figure 3. 5. To select which cross section is the right one look for the starting height or water depth at the beginning and end of the lines. Then look in between too! 1. Answer the following questions regarding Figures 1 and 2 below: Question (refer to Figure 1) Answer What is the maximum depth (m) you would reach if you traversed along the red line path shown in Figure 1? (10 points) What is the maximum elevation (m) you would reach if you traveled along the same path in Figure 1? (10 points) Between which two depths (m) would you experience the greatest change in slope in Figure 1 (hint: slope is the change in vertical position relative to the change in horizontal position)? (10 points) Choose the subpanel cross-section in Figure 2 that best represents the red traverse line in Figure 1. (25 points) .jpg” alt=”rico2″> Figure 1: Elevation and bathymetry contour map for Puerto Rico (contour lines are in meters). .jpg” alt=”rico_4panel”> Figure 2: Possible vertical representations of the red traverse line in Figure 1. 2. Answer the following questions regarding Figures3 and 4 below: Question (refer to Figures 3 and 4) Answer What is the maximum depth (m) you would reach if you traversed along the red line path shown in Figure 3? (10 points) What is the maximum elevation (m) you would reach if you traveled along the same path in Figure 3? (10 points) Choose the subpanel cross-section in Figure 4that best represents the red traverse line in Figure 3. (25 points) .jpg” alt=”hawaii3″> Figure 3: Elevation and bathymetry contour map for Hawaii (contour lines are in meters). .jpg” alt=”hawaii_4panel”> Figure 4: Possible vertical representations of the red traverse line in Figure 3.
