Assume that water flowed through these valleys at some time. This content is subject to copyright. In this case, to find out the intermediate points elevation, contour intervals are used. In which stage of the cycle of stream erosion is this area? Observe your best fit line. Hint- make sure to re-read the section on plate boundaries before answering! For this computation, the rise, or vertical ground distance, and run, or horizontal ground distance, are needed. Show your work. Please hand in this lab to your TAs at the end of the lab period. Figure 2 is based on a more complicated landscape that I contoured using a dark pen at a 10 m contour interval and using a lighter pen at a 5 m contour interval. How fast was the Pacific plate moving from 7.2 million years ago to 4.7 million years ago between the formation of Kauai and Nihoa in cm/year? contour lines represent steep slopes, conversely, contour lines that are spaced exaggeration: A contour line of a function of two variables is a curve along which the function has a constant value, so that the curve joins points of equal value. A contour map consists of contour lines of a given geographical region. long-term time-average of sea level). Note: the maps used in this lab are in colour and the colours have significance in terms of the symbols and patterns used on the maps it is best to print this lab in colour and from a pdf version. Measure the horizontal map distance between points A and B to get the vertical ground distance. This may be easier to determine by examining the tributaries to the main stream. In Figure 1.9, which of the following geologic structures is. Lets assume, 7000 and 7100 and calculate the interval between it. Refer to the figure below and assume contour interval of 10 feet. What is the elevation of the base in feet. Flood stage, or bankfull stage, on Sweetwater Creek occurs at a discharge of ~4,500 cfs. The shaded areas indicate the 95% confidence intervals. c. Label each mark If the topographic map in Figure 3.6 has a fractional scale of 1:12,000 then 1 inch is equal to 12,000 inches or 1000ft; this 1inch = 1000ft equivalency is for the horizontal scale. d. Is the elevation of waypoint D > or < waypoint C? What type of drainage pattern would this area represent? 3. Write your answer in feet. 13. Considering the size of the area to be mapped, contour intervals are assumed. If the numbers associated with specific contour lines are increasing, the elevation of the terrain is also increasing. Contour line art is a method of drawing where you draw only the outline of an object, without any shading. from the highest, and dividing the result by the horizontal distance. Divide the current maximum elevation of the Big Island by the rate you calculated in the previous question. 750m. Find Sloans Crossing. do not cross each other, divide or split. f. Is the elevation of waypoint C > or < waypoint B? hillslope: A simple diagram is shown below on the left. According to the geothermal gradient, rocks at 500 degrees Celsius will be buried how deep? Low gradient and abundant sediment supply. (5 pts) The following topographic map (Map 7-E3) is from a coastal area and features an interesting geological hazard in addition to the ocean. As an example, Contour Lines and Intervals Contour lines connect all the points on a map that have the same elevation and therefore reveal the location of hills, mountains, and valleys. V shaped. As you can see contour lines with 10 m interval. Index contour lines: Every fifth contour line is a thicker, "index" line.At some point along that line, its exact elevation is listed. Contour interval calculator - A contour interval in surveying is the vertical distance or the difference in the elevation between the two contour lines in a. . Now calculate the difference between the two-selected index contour line selected from a map. Locate Little Sinking Creek in the southern portion of the map, north of Hwy. Sorry, you do not have permission to ask a question, You must log in to ask a question. The steepest slope on this hill can be found on the side that is facing which direction? Pick two contour lines that are next to each other and find the difference in associated numbers. 2. Use a contour interval of 4 inches. The outside of the fiberglass is maintained at 35C35^{\circ} \mathrm{C}35C, and the total heat flow through the copper-fiberglass combination is 52kW52 \mathrm{~kW}52kW. Contour Lines fcontour (f) plots the contour lines of the function z = f (x,y) for constant levels of z over the default interval [-5 5] for x and y. fcontour (f,xyinterval) plots over the specified interval. If you decided to walk to from the monument to the white house how far would u have to walk in miles? available from: Open Geosciences. Assume value is an integer variable. Description. Look closely at the topography south of highway, and it changes abruptly. Q: Refer to figure 23.5. Search for the "Washington Monument" and zoom into 3000 feet eye altitude. o drainage ' divide or watershed boundary 1000 ft -::-:: Contour interval 50 Feet Figure 12.5 Flow lines across a topographic surface. Horizontal Sharp contour points indicate pointed ridges. What is the latitude for this monument? How to Calculate Contour Interval from Maps? contour (Z) creates a contour plot containing the isolines of matrix Z, where Z contains height values on the x - y plane. If you were standing at the washington monument what direction would you need to walk to get to the U.S. capitol building? What type of process is going on at this location? When connecting the points on your graph paper in the area between the two hills in Figure 3.6, you again want to round out the area to represent the base of your valley between the hills, but be careful not to make the valley floor too deep, as according to the topographic map the elevation is below 40ft, but not as low as 30ft. Which of the following places represent a Wadati-Benioff zone? In this stream, erosion is occurring on the ______________ because _______________, while deposition is occurring on, Cut banks, the fast velocity flows to this point; point bars the slowest velocity water flows to this point. It is impossible to determine which location is higher. They are usually mapped with small contour intervals. To illustrate what these hills look like in profile (or, how they would look if you saw them while standing on the ground and looking at them . Join TheConstructor to ask questions, answer questions, write articles, and connect with other people. Note: The intervals are increasing, therefore, the contours indicate a hill. Please refer to this Saskatoon topographic map to complete the next three questions. Note: there is technically more than one correct answer for some of these questions. Write out the longitude for each designated point as was done for Point A Write out the longitude for each designated point as was done for Point A A: Longitudes for the given points are explanied below Contour lines that are very close together indicate a steep slope. What is the benchmark elevation at Sloans Crossing? Calculate the contour interval between index contours, which are are the more prominent, bold-colored lines with the elevation marked on them. Using the surrounding contour lines, what is the approximate elevation of Deadmans Lake? Which of the following lakes has a shoreline that is most likely at an elevation between 10,240 and 10,320 feet above sea level? Would you expect the gradient of the Missouri River in Nebraska to be greater or less than the gradient that you calculated for the Grape River in Colorado? For 1:25 000 scale maps the interval between contours is usually 5 metres, although in mountainous regions it may be 10 metres. At 2900 Km the S wave velocity falls to 0. Complete this map by adding in contour lines using a contour interval of 100 m. Draw the contour lines so that they are continuous: they will either continue to the edge of the map or form an enclosed circle. Given that this portion of the Australian plate moves at a speed of 2.2 inches per year, how old are the snake fossils? 2.The contour interval is 0.025 N m 2.The thick black contour is zero. Orbiting spacecraft contain internal gyroscopes that are used to control their orientation. Of the following dated flood events, which one would you expect to happen more often? (2 pts) What is the ratio scale used on this map? What is the gradient of the GC, What is the contour interval for the map below, Between the index counters on this map, the river gradient is. B. Construct flow lines emanating from each point " x " to illustrate the groundwater flow field on the map. Answer: B. trend up valleys and form a "V" or a "U" where they cross the "V" points to the area of higher elevation or upstream. What factors control the course of this river? on a map that are produced from connecting points of equal elevation (elevation The circled points indicate days that were at least partially spent at the study side; red circles indicate days with frequent sampling . 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The zone from 20-2900 Km represents the earth? Because there isnt a 60ft contour line on this hilltop, we know that the hills highest point (the crest) is some elevation between 50 and 60ft. It is usually every fifth line that indicates a change in elevation. 11. Topographic For the following exercises, please refer to British Columbia Topographic Map 092G095 of the Mount Garibaldi area in southern BC.
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