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9. Location #2 Deming, WA: Deming, WA, represents the middle section of the Nooksack River. Use Google Earth to observe the river in this location and answer the following questions. 9a. Describe the setting for this river. (What would it look like if you were standing there?) 9b. Describe the river channel itself, including its width, apparent water depth, shape of the path it is taking, and the apparent size of the material that makes up the river bed. 9c. Use the Ruler tool to calculate the gradient of the river at this location. Report the upstream elevation, downstream elevation, horizontal distance, and river gradient. Note that the river has several bends (called meanders) in it and several sandbars (the tan-colored areas along the river). Use the Historical Imagery tool (the clock button) to view aerial photos of the river for November 2011, July 2007, and July 1998. For each time period, use the Add Path tool (the connect-the-dots button) to trace the location of the main river channel. Then answer the following questions based on the locations of the meanders and sandbars over time. 9d. Note the parts of the river that appear to be eroding over time. Describe these location(s). 9e. Note the parts of the river that appear to be depositing new sediment over time. Describe these location(s). 9f. Look up and down the river using the current image. Does the riverbed remain in one

9. Location #2 Deming, WA: Deming, WA, represents the middle section of the Nooksack River. Use Google Earth to observe the river in this location and answer the following questions. 9a. Describe the setting for this river. (What would it look like if you were standing there?) 9b. Describe the river channel itself, including its width, apparent water depth, shape of the path it is taking, and the apparent size of the material that makes up the river bed. 9c. Use the Ruler tool to calculate the gradient of the river at this location. Report the upstream elevation, downstream elevation, horizontal distance, and river gradient. Note that the river has several bends (called meanders) in it and several sandbars (the tan-colored areas along the river). Use the Historical Imagery tool (the clock button) to view aerial photos of the river for November 2011, July 2007, and July 1998. For each time period, use the Add Path tool (the connect-the-dots button) to trace the location of the main river channel. Then answer the following questions based on the locations of the meanders and sandbars over time. 9d. Note the parts of the river that appear to be eroding over time. Describe these location(s). 9e. Note the parts of the river that appear to be depositing new sediment over time. Describe these location(s). 9f. Look up and down the river using the current image. Does the riverbed remain in one

Applications and Investigations in Earth Science (9th Edition)
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
Problem 1LR
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9. Location #2 - Deming, WA: Deming, WA, represents the middle section of the Nooksack River. Use Google Earth to observe the river in this location and answer the following questions. 9a. Describe the setting for this river. (What would it look like if you were standing there?) 9b. Describe the river channel itself, including its width, apparent water depth, shape of the path it is taking, and the apparent size of the material that makes up the river bed. 9c. Use the Ruler tool to calculate the gradient of the river at this location. Report the upstream elevation, downstream elevation, horizontal distance, and river gradient. Note that the river has several bends (called meanders) in it and several sandbars (the tan-colored areas along the river). Use the Historical Imagery tool (the clock button) to view aerial photos of the river for November 2011, July 2007, and July 1998. For each time period, use the Add Path tool (the connect-the-dots button) to trace the location of the main river channel. Then answer the following questions based on the locations of the meanders and sandbars over time. appear to be eroding over time. Describe thes 9e. Note the parts of the river that appear to be depositing new sediment over time. Describe these location(s). 9d. Note the parts of the river location(s). 9f. Look up and down the river using the current image. Does the riverbed remain in one location or does it move? What evidence supports your conclusion? 9g. Predict what the river will look like in five years and explain why this will happen. 9h. Figure 5 is a map of the Nooksack River from July 2007. Note how the river is against the bank at X. Based on what you have observed, should the buildings near Point X be experiencing erosion or deposition? Observe this area over several years. Did the bank near these buildings erode? Look carefully at the river near Point X. Do you see any evidence for why the buildings in this area are not eroding away? X Buildings Stream flow Riverbank Figure 5: Sketch of the Nooksack River.
Transcribed Image Text:9. Location #2 - Deming, WA: Deming, WA, represents the middle section of the Nooksack River. Use Google Earth to observe the river in this location and answer the following questions. 9a. Describe the setting for this river. (What would it look like if you were standing there?) 9b. Describe the river channel itself, including its width, apparent water depth, shape of the path it is taking, and the apparent size of the material that makes up the river bed. 9c. Use the Ruler tool to calculate the gradient of the river at this location. Report the upstream elevation, downstream elevation, horizontal distance, and river gradient. Note that the river has several bends (called meanders) in it and several sandbars (the tan-colored areas along the river). Use the Historical Imagery tool (the clock button) to view aerial photos of the river for November 2011, July 2007, and July 1998. For each time period, use the Add Path tool (the connect-the-dots button) to trace the location of the main river channel. Then answer the following questions based on the locations of the meanders and sandbars over time. appear to be eroding over time. Describe thes 9e. Note the parts of the river that appear to be depositing new sediment over time. Describe these location(s). 9d. Note the parts of the river location(s). 9f. Look up and down the river using the current image. Does the riverbed remain in one location or does it move? What evidence supports your conclusion? 9g. Predict what the river will look like in five years and explain why this will happen. 9h. Figure 5 is a map of the Nooksack River from July 2007. Note how the river is against the bank at X. Based on what you have observed, should the buildings near Point X be experiencing erosion or deposition? Observe this area over several years. Did the bank near these buildings erode? Look carefully at the river near Point X. Do you see any evidence for why the buildings in this area are not eroding away? X Buildings Stream flow Riverbank Figure 5: Sketch of the Nooksack River.
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