Location A is higher. An error message is displayed. 14. PDF 2-1. BATHYMETRIC CHARTS - UMass D Note: if you are unable to read the contours on the map, view the original map on the web or look at the large printed copy in the lab. Mark Figure 7-E9 with a line to indicate the distance you used in your calculation. Contour values are in feet. Note where this would plot on your graph. b. Refer to the figure below. The more closely spaced the maps also have a vertical scale to allow the determination of a point in three LAB EXERCISE 9.2 Determining Elevations from Topographic Maps - Quizlet Contour lines rules: 1. All contour lines are spaced at a 20 m contour interval. All points on a contour line are at the same elevation. tops of peaks, and some are marked with xs with numbers next to them. According to the geothermal gradient, rocks buried 75 km beneath the surface would normally be at what temperature? 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. What type of process is going on at this location? 1.3 Tips for Measuring %Slope on Contour Maps e. Is the elevation of waypoint A > or < waypoint B? Observe the velocities of waves on the graph. The final answer we get after dividing is the contour interval of the specific topographical map. along a line drawn through a portion of a topographic map. The equation used is: Tips Horizontal Location A is higher. What is the tolerance for compression test results of concrete, according to the standards? d. Prepare a vertical contour lines represent steep slopes, conversely, contour lines that are spaced This is a graded activity, please submit it to your TA at the end of the lab. View the full answer. fault. The numbers are the elevation at the top of the peak. which Geologic Law did you use to come to the conclusion you made in the previous question (figure 1.8)? Figure 6.13 | Coastal area topographic map. Apply the principle of conservation of angular momentum to determine the direction a spacecraft will rotate if an internal gyroscope begins to rotate in the counterclockwise direction. right hand portion of the window. scale on profile paper by labeling the horizontal lines corresponding to the Answer the following questions about these waypoints, based on your best guess estimate of the elevation of each waypoint. far apart represent gentle slopes. 16. Why would a smaller ratio scale be used for this map in comparison to the Garibaldi map? 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"13:_Earthquakes" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "14:_Physiographic_Provinces" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "zz:_Back_Matter" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()" }, 3.6: Drawing Contour Lines and Topographic Profiles, [ "article:topic", "showtoc:no", "license:ccbysa", "authorname:delineharristefend", "program:galileo" ], https://geo.libretexts.org/@app/auth/3/login?returnto=https%3A%2F%2Fgeo.libretexts.org%2FLearning_Objects%2FLaboratory%2FBook%253A_Laboratory_Manual_For_Introductory_Geology_(Deline_Harris_and_Tefend)%2F03%253A_Topographic_Maps%2F3.6%253A_Drawing_Contour_Lines_and_Topographic_Profiles, \( \newcommand{\vecs}[1]{\overset { \scriptstyle \rightharpoonup} {\mathbf{#1}}}\) \( \newcommand{\vecd}[1]{\overset{-\!-\!\rightharpoonup}{\vphantom{a}\smash{#1}}} \)\(\newcommand{\id}{\mathrm{id}}\) \( \newcommand{\Span}{\mathrm{span}}\) \( \newcommand{\kernel}{\mathrm{null}\,}\) \( \newcommand{\range}{\mathrm{range}\,}\) \( \newcommand{\RealPart}{\mathrm{Re}}\) \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\) \( \newcommand{\Argument}{\mathrm{Arg}}\) \( \newcommand{\norm}[1]{\| #1 \|}\) \( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\) \( \newcommand{\Span}{\mathrm{span}}\) \(\newcommand{\id}{\mathrm{id}}\) \( \newcommand{\Span}{\mathrm{span}}\) \( \newcommand{\kernel}{\mathrm{null}\,}\) \( \newcommand{\range}{\mathrm{range}\,}\) \( \newcommand{\RealPart}{\mathrm{Re}}\) \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\) \( \newcommand{\Argument}{\mathrm{Arg}}\) \( \newcommand{\norm}[1]{\| #1 \|}\) \( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\) \( \newcommand{\Span}{\mathrm{span}}\)\(\newcommand{\AA}{\unicode[.8,0]{x212B}}\), Answers to Practice Lab Exercises, Parts A and B, status page at https://status.libretexts.org, Contour lines represent lines connecting points of equal elevation above sea level, Contour lines never cross, split, or die off, Contour intervals must be obeyed, therefore the contour lineelevations can only be multiples of the contour interval. They then cross the stream and turn back along the opposite bank of the stream forming a "v". Then add 1 to 5 that becomes 6. the final step is the quotient of the difference between 2 index lines (step 2) and the number of lines in between two index lines plus 1 (step 5). During the flood event of 9/23/2009, the discharge measured at this gaging station was 21,200 cfs. Measure the horizontal map distance between points A and B to get the vertical ground distance. The difference between Contour intervals and Horizontal Equivalent are tabulated below: Contour Lines and Its Types, Characteristics and Uses in Surveying. How far (in Km) did the pole move in one year during this time period? Give the elevation of the highest and lowest contour lines as well as the difference between them. Write your answer in feet. d. Is the elevation of waypoint D > or < waypoint C? Where do the P waves abruptly change? Answered: 1. What is the contour interval of the | bartleby above or below it, multiplying by the contour interval, and adding or subtracting Why is this so? The figure on the right shows the 500 mb height map for December 9 with the position of a trough and ridge . V shaped. Figure out math tasks Determine Contour Interval and Contour Line Values. Because the stream flows south, contour a, which lies downstream of contour b, must be the lower of the two. 60 seconds. Measure the gradient to the index contour past the word Creek (the last contour before it reaches Arkansas River). To show information. (3 pts) Based on the scale chosen for you for the topography (vertical axis), calculate the amount of vertical exaggeration on the topographic profile you constructed for question 4. Based on your answer to question 6 which of the following statements about the break-up of Pangaea is TRUE? Here two contour line, side by side are 790 m and 780 m. Between them there is no contour line. Hint- make sure to re-read the section on plate boundaries before answering! 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? Search for the "Washington Monument" and zoom into 3000 feet eye altitude. 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. (a) Suggest what the 100S100 \mathrm{~S}100S and 130S130 \mathrm{~S}130S particles might represent, in light of current knowledge of protein synthesis. Look closely at the topography south of highway, and it changes abruptly. The rendition of this topography as an isoline (contour) map from an overhead perspective is shown directly below. from the highest, and dividing the result by the horizontal distance. 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. CONTOUR/SIGDIG= Sets the number of digits after the decimal point for contour labels; default is 2. In which stage of the cycle of stream erosion is this area? of paper along a line across the area where the profile is to be constructed. Join now! Write your answer in feet. In what general direction is the Pacific Plate moving? On most topographic maps, Map A contour map consists of contour lines of a given geographical region. Math can be challenging, but with a little practice, it can be easy to clear up math tasks. Closely spaced 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? refers to height in feet, or meters, above sea level). 3. Is the school likely to be at risk of contamination from this same leak? You can figure out the elevation of These marked or labeled lines are known or termed as Index Contour Lines. A slope is the rise or fall of the land surface. To show different features of Earth's surface. Sometimes vertical exaggeration is desiredbut, in some cases, you may not want it. Information (1 pt) What is the longitude along the eastern edge of this rectangle? As contour intervals are for the calculation of vertical elevation of an area, same way to calculate the horizontal distance it is termed as Horizontal Equivalent. So contour interval = 790 m-780 m=10 m. For further query, add a comment. Measure the distance, using bar scale, between the pole in 1400 and 1500 (locations C and D). Denser forests across the USA experience more damage from insects and the archeologist determines that there is 16.7% of the parent isotope remaining in the cloth sample. of a hill (or hills). Examine the path of the river that feeds into and flows out of Quail Lake. In which direction does it flow? They are marked with short, straight lines inside the circle. Divide the current maximum elevation of the Big Island by the rate you calculated in the previous question. It is usually every fifth line that indicates a change in elevation. Contour Interval on Topographic Map. 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. Streams/Rivers Escarpments/Cliffs Topographic maps STAAR Review | Topography Quiz - Quizizz Why are colors and symbols used on topographic maps? By using a ruler, you can transfer these elevation points from your topographic map straight down onto your graph paper such as shown in Figure 3.6. When she treated such a mixture with EDTA, everything dissociated to 30S30 \mathrm{~S}30S and 50s50 \mathrm{~s}50s particles. Determine the direction of the slope (aspect) from the index contour line to your location by drawing an arrow from the index contour line to the next higher elevation contour line. Remember, because of isostasy the denser plate will be lower than the less dense plate. Is Lake Creek flowing into or out of Phelps Lake? Mountain/Hill Depressions for Interpreting Topographic Maps Transcribed image text: Refer to the hydrologic map in Figure 14.5. Contour Interval - Calculation - Examples - Types - Scale - Definecivil Q. (10 pts) Imagine you are a geologist working for the Geological Survey of Canada. Locate the Louisville and Nashville Railroad line just south of Hwy. Note: This lab is in colour. How are depressions marked on a topographic map? tilting. The run is 1000 feet and the rise in elevation is 120 feet. Using the speed you calculated in the previous question (and ignoring possible changes in sea level), when will the Big Island of Hawaii sink below the surface of the ocean? Please enter your email address. Topographic Maps | Earth Science | | Course Hero submergence and deposition of sedimentary layers 10-13. based on the assemblage of organisms (A-I) in this sample, what is the age of this rock. To avoid having your profile distorted so that it accurately conveys what the surface of the Earth really looks like in profile, you will want both the vertical and horizontal scales to match. Measure in centimeters the distance (Map Length) between the two points you recorded in the previous question. In the context of evolution through natural selection, explain why multicellular organisms have specialized exchange systems and surfaces. Write your answer in feet. fairmount. map. Would this be an easy location to maintain a railroad? The terms below S waves cant travel through liquids and this depth is where the liquid outer core exists. The direction system is useful but imprecise. If you trace the length of a line with your finger, each point you touch is the same height above sea level. Calculate the contour interval between index contours, which are are the more prominent, bold-colored lines with the elevation marked on them. (1 pt) Contour intervals located on this map are few and far between. Q. Practice Questions on Geological Structures, 7. Contour: Definition and Methods | Contour |Surveying A topographic profile along the A - A' line is shown correctly in: What is the longitude for the northwest corner of the map? any point by finding the nearest labeled line, counting the number of lines a. 12. (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. It is determined as follows: Let's take an example of two contour lines which are labelled. Contour lines do not cross each other, divide or split. The. The direction of plate movement in the last 1.1 million years. Likewise the "40" contour connects depths of 40 ft below sea level and so on. Please hand in this lab to your TAs at the end of the lab period. Course Hero uses AI to attempt to automatically extract content from documents to surface to you and others so you can study better, e.g., in search results, to enrich docs, and more. LAB EXERCISE 9.4 Rules for Reading Contour Li, LAB EXERCISE 9.3 Understanding Stream Behavio, LAB EXERCISE 11.2 The Logic of Locating Earth, EXERCISE 9.4: Determining Elevations From Top, LAB EXERCISE 2.10 - Estimating the Amount and, LAB EXERCISE 2.13 - Why Are There More Earthq, LAB EXERCISE 6.9 - Gaining Insight into Depos, EXERCISE 2.1 - Recognizing Plates and Plate B, Chapter 2: Understanding and treating mental, Fundamentals of Engineering Economic Analysis, David Besanko, Mark Shanley, Scott Schaefer. 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. a landform it is necessary to construct a topographic profile or cross-section If so, what are the corresponding highest and lowest elevations? (Answer to the nearest foot.) pressing down on the middle mouse wheel and moving the mouse forward and (5 pts) 7. contour (X,Y,Z) specifies the x and y coordinates for the values . What Is Contour Interval ? : Steps Of Calculating, Characteristics In the given figure contour interval is 50 feet. Each contour line shows a different elevation. 2.The contour interval is 0.025 N m 2.The thick black contour is zero. This may be easier to determine by examining the tributaries to the main stream. 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 topographic map is a precise, graphic representation of the three-dimensional shape of the earth's surface. The rock that most closely resembles the composition of continental crust based on the description in the previous section is: Based on the choice you made for question 15, what is the density of the rocks that make up continental crust? For interval 14, the models trained with DeepAugment elicit stronger connections between the endpoints than those without DeepAugment, but the difference is not significant enough. The figure above illustrates various topographic features. What does a contour interval mean | Math Theorems Contour plot of matrix - MATLAB contour - MathWorks We also acknowledge previous National Science Foundation support under grant numbers 1246120, 1525057, and 1413739. Log in to TheConstructor to ask questions, answer peoples questions, write articles & connect with other people. 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 . Absolutley amazing app and would definitely recommend. with the labeled contour lines at the bottom of the profile paper and project Write your answer in feet. Sorry, you do not have permission to ask a question, You must log in to ask a question. A darker, heavier contour line that is labeled with an elevation. Where do the S wave velocities abruptly change? Transcribed image text: Creating USGS topographic maps also show many other kinds of geographic features including roads, railroads, rivers, streams, lakes, boundaries, place or feature names, mountains, and much more. each contour to the horizontal line of the same elevation. What is the name of the family that contains beryllium? For producing a detailed study of Of the following dated flood events, which one would you expect to happen more often? index contour lines are generally darker and are marked with their elevations. To use the same interval for both x and y , specify xyinterval as a two-element vector of the form [min max]. 300 A. (2 pts) What is the ratio scale used on this map? Use the index contour just above the "m" in Temple Canyon for your initial spot. Consider the ages and positions of the islands listed above along with what you know about plate tectonics and hotspots. What is the gradient? This content is subject to copyright. How far did the pole move? Note: there is technically more than one correct answer for some of these questions. What does this type of drainage pattern indicate about the area? Generally, there are totally distinct contour intervals for various maps. Map Example indicate what information is contained on a topographic map, and where it can (5 pts) Figure 7-E4 shows five waypoints (A, B, C, D, and E) on a topographic map. Contour lines tend to enclose the smallest areas on ridge tops, which are often narrow or very limited in spatial extent. Contour interval calculator - Math Index The steepest slope on this hill can be found on the side that is facing which direction? Now draw contour lines on your map to represent the pyramid in three-dimensions on your map. A contour interval is a vertical distance or the difference in the elevation between the two contour lines in a topographical map. What is the elevation of the base in feet. Step 3. 9.4) to estimate the elevation of this point as accurately as possible. Essentially a topographic profile is a side image of a topographic map, but the image is only a representation of the area shown on the line on the topographic map (line A-B on Figure 3.6). Refer to the figure below. Once your points are plotted on the graph paper, you simply connect the dots. Given that this portion of the Australian plate moves at a speed of 2.2 inches per year, how old are the snake fossils? Explain how you made this decision. Each dot represents an elevation number, spaced evenly at 100 m in the horizontal. In the above figure, the dark lines with reading are index contour lines. What does a contour interval mean - A contour interval is a vertical distance or the difference in the elevation between the two contour lines in a. . (The benchmarks have an "x" to locate the spot where the elevation was surveyed). How big is the base (area) of the washington monument in sq feet? think about the drainage pattern you selected in the previous answer - what does this tell you about the underlying rocks? Generally, there are various contour intervals for the various maps. View Source. Therefore the topographic profile in Figure 3.6 represents a profile of the map surface (along the A-B line) that has been vertically exaggerated by 10 times (10X). The result is expressed in feet per mile (ft./mi.). Considering the above map, the steps involved in contour interval calculation are. To take the difference, subtract the higher elevated line with the lower elevated line reading. Based on the map below, which location has a greater elevation, A or B? For example, if you wanted to do a contour line drawing of a pear, you'd simply draw the outline of the pear, add a stem, and stop there. Based on the drainage pattern type, does the bedrock underlying this area consist of rocks uniformly resistant to erosion or rocks alternating between resistant and non-resistant layers?

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