Interactive Plots of Worldwide CO2 Data Analysis

Interactive Plots of Worldwide CO2 Data Analysis

 
June 2019 GOL 105: Shorelines Lab Objective: The objective of this lab is to help familiarize you with the basic types of shorelines (submergent verses emergent) and the geologic processes and features associated with each type. Introduction: This exercise will utilize the information contained in Chapter 20 (Shorelines) in your textbook. Waves rarely approach a beach directly parallel to the shoreline but instead approach a beach at an angle. This angular crashing of the wave on the beach will create a longshore current parallel to the beach and directed from the point of earliest impact to the point of later impact of a single wave crest. This current is responsible for moving sediment down the coastline. It also moves people swimming in the ocean. Have you ever entered the ocean to swim, and suddenly found yourself moving down the beach away from where you entered? You were likely in the longshore current. Any structure that intercepts this current will interfere with the transport of sediment down the shore and cause either localized deposition or erosion of the beach. The side of structure facing into the current will generally experience deposition, while the side of structure facing down current will experience erosion. Directions: 1) Read Chapter 20 (Shorelines) in your textbook. 2) Complete the Shoreline Lab Exercise using the link in the Unit 15 (16 Multiple choice questions, 5 pts each). Refer to Figures 1, 2, and 3 below and the topographic map of Ocean City, MD found at https://ngmdb.usgs.gov/topoview/viewer/#12/38.3885/-75.0703 3) Draw in the resulting shoreline profiles for Figures 1 and 2. Assume that the manmade structures have only recently been erected on the beaches. What would the shoreline look like if you were to come back several years from now and how would it differ from the present shoreline. Draw in what you think the new shoreline would look like after it has equilibrated with the new man-made features. After you have completed your drawings (you can draw them right on the figures below), scan them in and post them to the class site. If you do not have access to a scanner, photograph the drawings and send the phtograph(s) on to the instructor. Just make sure the photographs are of high enough resolution for the instructor to clealy see what you have drawn. Beach Processes: Figures 1 and 2 below represent typical developed marine coasts. Figure 3 represents several common deposition features found along submergent coastlines. The tan region represents the beach, the blue region is the ocean, and the dashed lines represent incoming wave crests. The black lines represent man-made structures. N A B Figure 1 N C D Figure 2 N E F Figure 3 G