What type of drainage pattern would this area represent? On most topographic maps, A person standing at point "F" would only be visible to a person standing at: Examine the figure below. dimensional space. (1 pt) How much higher is Mount Price than Garibaldi Lake? If you examine the graph showing the topographic profile in Figure 3.6, can you imagine what would happen to your profile if we changed the spacing for elevations on the y-axis? One side of a copper block 5cm5 \mathrm{~cm}5cm thick is maintained at 250C250^{\circ} \mathrm{C}250C. 30 seconds. The contour interval is 20'. d. Is the elevation of waypoint D > or < waypoint C? Calculate the contour interval between index contours, which are are the more prominent, bold-colored lines with the elevation marked on them. Keeping the abrupt topography change in mind, which of the following is true? 2009-2021 The Constructor. https://openpress.usask.ca/app/uploads/sites/52/2018/08/SKtopomap_v2.pdf. She could find, in sedimentation experiments on bacterial lysates, not only 30S,50s30 \mathrm{~S}, 50 \mathrm{~s}30S,50s, and 70S70 \mathrm{~S}70S particles but also some particles that sedimented at about 100S100 S100S and 1305. of a hill (or hills). The contour line is a line which defines the outline of an object. The purpose of this lab is to familiarize students with how to read and use topographic maps. It will take approx. 0.5 in 24,000 in/in = 12,000 in To show different features of Earth's surface. What type of drainage does this appear to be? We further visualize the globally normalized responses of each convolution filter on the image of grating interval 6 in Figure 5 B. Index contour lines: Every fifth contour line is a thicker, "index" line.At some point along that line, its exact elevation is listed. These circular patterns indicate hilltops, like in the diagram below (Figure 3.6). 17. The rendition of this topography as an isoline (contour) map from an overhead perspective is shown directly below. As a rule, hilltops will be slightly rounded to show a slight increase in elevation to represent the crest of the hill, but be careful not to draw the hilltoptoo high on your graph paper. What does this type of drainage pattern indicate about the area? which of the above geologic events is seventh in the sequence. exaggeration: Please use Occams razor as you answer the questions: use the simplest explanation rather than the most complicated explanation to answer the question. The direction of plate movement in the last 1.1 million years. Is Lake Creek flowing into or out of Phelps Lake? Therefore: Rise = change in elevation = top (Point A elevation) minus bottom (Point B . On a topographic map, a contour line is a line that depicts ground elevation or depression. He wants to follow the easiest possible path, which means he needs to find the most gentle slope up the mountain. In which zone do the P wave velocities appear to be steadily increasing? How were you able to come to this conclusion? If you were standing at the washington monument what direction would you need to walk to get to the U.S. capitol building? To determine the elevation of a point on a topographic map: The highest point of the rim of the crater is about 350. Follow the creek along its path. For example, if a location point is between the 150 feet and 200 feet contour lines than the elevation is 175 feet (1/2 of 50 feet is 25 feet; 25 feet added to 150=175 feet). Examine the path of the river that feeds into and flows out of Quail Lake. What is the benchmark elevation at Sloans Crossing? Lines: Contour lines are used to determine elevations and are lines 9.4) to estimate the elevation of this point as accurately as possible. Are the rocks likely tilted and folded or horizontal? from the highest, and dividing the result by the horizontal distance. What is the latitude on the northern edge of this rectangle? The elevation at sea level is zero meters. Each contour line shows a different elevation. 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 Consider the ages and positions of the islands listed above along with what you know about plate tectonics and hotspots. Example Calculation of Contour Intervals: Factors Affecting Durability of Fiber Reinforced Concrete (FRC), Measuring Tape: Anatomy, Marking, and Steps to Measure, Tacheometric Surveying: Principle, Procedure, and Advantages, Types of Foundation for Buildings and their Uses [PDF], Compressive Strength of Concrete -Cube Test [PDF], Procedure, Results, 16 Types of Heavy Equipment Used in Construction, Calculate Quantities of Materials for Concrete -Cement, Sand, Aggregates, Methods of Rainwater Harvesting [PDF]: Components, Transportation, and Storage, Exploring the Impact of Construction Robots on the Industry, How to Maintain a Brick Chimney for Maximum Efficiency, A Shining Future: The Benefits of Solar Energy, What You Should Know Before Installing Mud Flooring. What factors control the course of this river? Why is mass so important to a stars life? The contour interval is 20 meters ( Figure 10-2 ), thus each one of the intermediate contour lines crossed to get to point (a) adds 20 meters to the 500-meter index contour line. hillslope: According to the geothermal gradient, rocks buried 75 km beneath the surface would normally be at what temperature? Refer to the figure below and assume contour interval of 10 feet. What is the relief between the surface of East Musquash Lake and the intersection between U.S. Route 1 and Maine Route 6 in Topsfield? lines enclose smaller and smaller areas. Once your points are plotted on the graph paper, you simply connect the dots. The numbered contour lines are the index contours; the unnumbered contour lines are the supplemental contours. Scale (contour interval): All maps have a horizontal scale. Its Calculation, Uses and When it is Required, Factors Affecting the Selection of Contour Interval. a. amacrine cells b. photoreceptors c. bipolar cells d. retinal ganglion cells, In Figure 1.8, which of the following rock layers is. Use a contour interval of 4 inches. contour (X,Y,Z) specifies the x and y coordinates for the values . (2 pts) What is the ratio scale used on this map? Each contour line shows a different elevation. Consideration in making the choice of the proper contour interval . Practice questions on Topographic Maps, 5. The contour interval is determined by the scale of the map and the degree of relief of the terrain being represented. What important discovery did the researcher miss? V shaped. The Wadati-Benioff zone is associated with which type of plate boundary? See example under CONTOUR/SPACING below. Lines or isolines on a map that connect points with the same elevation. TAs names: _______________ _______________. (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. A thumbnail version of the map is shown in Figure 7-E10, a larger copy is provided at the back of this lab manual, and your TA will provide you with a full-scale version of the map in lab. Pick two contour lines that are next to each other and find the difference in associated numbers. Clear up mathematic tasks. Slope Worksheet (to be completed), Contact Us: NWCG Comments & Questions | USA.GOV | Notices | Accessibility | Copyrights | Linking Policy | Records Management | FAQs, M-581, Fire Program Management Course Steering Committee, M-582, AA Advanced Wildland Fire Course Steering Committee, Committee Roles and Membership Information, Course Steering Committee Guidance & Templates, International Association of Fire Chiefs Roster, National Association of State Foresters Roster, Alternative Pathways to NWCG Qualification, Wildland Fire Leadership Development Program, Table 5.3 Perimeter Estimation for Point Source Fires, Table 5.4 Area Estimation for Point Source Fires. In this case, to find out the intermediate points elevation, contour intervals are used. Step 2. Explain why. located below the scale. Put simply, contour lines mark points of equal elevation on a map. below cuts the mountain at equal intervals of elevation. 9. (5 pts) 7. Comparable to figure 8 D-F in ref. Topographic 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). S waves cant travel through liquids and this depth is where the liquid outer core exists. Notice the tick marks pointing toward lower elevation. What would happen to the mantle rock at point X if water is added to it? scale on profile paper by labeling the horizontal lines corresponding to the If you were standing in the middle on the intermost contour line hill "c", your elevation would be. At the point where 2 contour lines would cross would have 2 different elevations which is impossible. Index contours increase by 250. They also show some features made by people such as brodges. do not cross each other, divide or split. Given that this portion of the Australian plate moves at a speed of 2.2 inches per year, how old are the snake fossils? Your contour lines will generally fall between the GPS points on your map, so you will need to estimate many of the contour line positions. How far have the snake fossils moved apart since they were originally deposited? How are depressions marked on a topographic map? Join now! Source: Karla Panchuk (2020) CC BY-SA 4.0, adapted from Joyce M. McBeth (2018) CC BY-SA 4.0 (view source) and Brad Deline (2017) CC BY-SA 3.0 (view source). A contour line is a line drawn on a topographic map to indicate ground elevation or depression. Learn more about how Pressbooks supports open publishing practices. What is the straight line distance between the 8996 b and the 7202 b benchmarks located north and northwest of Phelps Lake? please add a brief explanation thank you If the numbers associated with specific contour lines are increasing, the elevation of the terrain is also increasing. Using a contour interval of 40 m, label the elevation of every contour line on the map below. The result is expressed in feet per mile (ft./mi.). Vertical exaggeration is the effect that is created when the horizontal and To use the same interval for both x and y , specify xyinterval as a two-element vector of the form [min max]. What type of drainage pattern is present in this area? Indicators themselves are weak acids or weak bases. trend up valleys and form a "V" or a "U" where they cross 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. The zone from 2900-5100 represents the Earth's ? On large-scale maps with a lot of topographical detail, the contour interval is usually smaller, while on small-scale maps with less detail, the contour interval is larger. How far apart are North America and Mainland Asia in cm? What would cause two separate samples of pure water to have slightly different pH\mathrm{pH}pH values? A contour interval in surveying is the vertical distance or the difference in the elevation between the two contour lines in a topographical map. What is the contour interval on a map based on? The horizontal distance between two points on two consecutive contour lines for a given slope is known as horizontal equivalent. Contour lines do not cross each other, divide or split. At what depth will the dry mantle rock at point X begin to melt if it is uplifted closer to Earth's surface and its temperature remains the same? The. index contour lines are generally darker and are marked with their elevations. MATLAB automatically selects the contour lines to display. What is the physical state of a dry mantle rock at point X? 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. Which of the following statements about them is true? of paper along a line across the area where the profile is to be constructed. These circular patterns indicate hilltops, like in the diagram below (Figure 3.6). For all of the following figures, assume north is at the top of the map, and south at the bottom. (2 pts) What is the relief on this map? The peak is normally considered to be located at half the interval distance. What type of tectonic plates are present? The equation used is: Tips Stream channels radiate outwards like wheel spokes from a high point. What can be said about level surfaces of \varphi? This content is subject to copyright. a landform it is necessary to construct a topographic profile or cross-section Closer distance indicates steep slope and wider distance gentle slope. Example 2- Draw a profile showing the elevations of the contours. The highest point on a topographic map is marked as 345m. 200 feet. Which of the following places represent a Wadati-Benioff zone? These features you are seeing are linear valleys. The given point, 537', therefore, must lie between the 520' and 540' contours (contours aand b). The number of lines obtained in the above step is taken and added with 1. a) Label the elevation of every contour line on the map. . In which stage of the cycle of stream erosion is this area? 1 ft = 24,000 ft, and 24,000 ft x (\(\frac{1\;km}{3280\;ft}\)) = 7.32 km. Observe the velocities of waves on the graph. The difference between adjacent contour lines. Upon adding divalent ions, she could regain 70S70 S70S particles, but never 1005 or 1305 particles. The numbers are the elevation at the top of the peak. What happens when the lithosphere at point X is heated to 1500 C? What is the gradient? C. Use the slope percent equation and solve. (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. Observe the stream on the Omaha N, Nebraska-Iowa quadrangle. A darker, heavier contour line that is labeled with an elevation. e. Place the paper Measure the distance using the bar scale between the pole 1400 and 1700 (locations C and F). Start climbing from the foot of a hill toward the top, this is called a rising slope (see Fig. Q: Refer to figure 23.5. Overview section 7.3 provides background information on contour lines to prepare you for these exercises. For consistency, assume that elevations between contour lines are 1/2 a contour interval higher than elevation of the lower line. Example 4- What is the slope percent in Exercise 2 above? Select the correct answer(s) from the questions below: The horizontal distance between points A and B can be measured with a scaled ruler and used to determine the slope percent. Why are colors and symbols used on topographic maps? 8. The steepest slope on this hill can be found on the side that is facing which direction? Refer to the topographic map in Figure 7-E3 for an example of contour lines you can use to help you complete this question. According to the geothermal gradient, rocks at 500 degrees Celsius will be buried how deep? Which one travels faster? Where do the S wave velocities abruptly change? For the plotting of region, the contour intervals are presumed. A topographic map is a precise, graphic representation of the three-dimensional shape of the earth's surface. Scale: Maps come in a variety of scales, covering areas ranging from 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. Lakes/Ponds. The height of an object above the surface of the sea. 40 feet - 20 feet = 20 feet Topographic Inspect the P wave velocities. If the counter interval is 10 feet, which hill (a,b,c) when viewed from the base is 40 feet tall? Log in to TheConstructor to ask questions, answer peoples questions, write articles & connect with other people. How is the top of a mountain shown on a topographic map? maps also have a vertical scale to allow the determination of a point in three (1 pt) If someone decided to climb Mount Price, what would be the easiest and safest route to take? For a relief map the contour interval is frequently persistent. The column and row indices of Z are the x and y coordinates in the plane, respectively. - Table 8 . Explain how you made this decision. fault. The map has a contour interval of forty feet, You are tasked with creating your own coastal topographic map, so you hike around a coastal area with a GPS receiver (Global Positioning System) and every so often you record your position along with the elevation in metres at that point, which results in the map below (Map 7-E5). The final answer we get after dividing is the contour interval of the specific topographical 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. A rounded contour indicates a flatter or wider drainage or spur. What is the elevation of the base of the monument in meters? Considering the above map, the steps involved in contour interval calculation are. Show your work below. What is the contour interval of the Figure 9 map (shown at the bottom of the page)? What is the change in elevation across each contour interval (i.e., between successive "regular" contours) on this map? What is the relationship between the relief of an area and the contour interval on a map of he area? What is the contour interval? Refer to the figure below. How old is the burial site? elevation of each index contour line. characteristics of contour lines: 1. 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. The overview section 7.4.2 provides useful background to help you answer questions 4 & 5. They also show elevation. Measure the horizontal map distance between points A and B to get the vertical ground distance. How are the tops of hills, mountains or depressions (dips) shown on a topographic map? the archeologist determines that there is 16.7% of the parent isotope remaining in the cloth sample. Make sure to zoom out to get a good view of the relevant features. The rock that most closely resembles the composition of oceanic crust based on the description in the previous section is: Based on the choice you made for question 17, what is the density of the rocks that make up oceanic crust? How and why do we divide stars into groups by mass? Map Example If so, what are the corresponding highest and lowest elevations? Determining map. What does each contour line on a map show? Approximately how far did the pole move per day? 12. 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). What are the different types of handrails used in bridges? 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 tend to enclose the smallest areas on ridge tops, which are often narrow or very limited in spatial extent. b. Constructing a topographic map by drawing in contours can be easily done if a person remembers the following rules regarding contour lines: As you draw a contour line on a map you will notice that the elevations on one side of your line will be lower elevations, and elevations on the other side of your line will be higher elevations. What type of tectonic plates are present? Every sixth contour line has an index contour, which is a bolder or thicker line. 3. The zone from 20-2900 Km represents the earth? Dont forget to add a contour line to the map legend! How contour lines show a pair of small hills Betwe View the full answer Transcribed image text: What is the contour interval for the figure below? The Zone from 0-20 km represents the earths? 31? Determine the elevation at Point A and Point B in the Figure 9 map below. The more closely spaced the a stream or river and dividing the distance (in miles) into the vertical difference (1 pt) Mount Price is located next to Garibaldi Lake (just west of Table Bay, Figure 7-E9 above). What is the tolerance for compression test results of concrete, according to the standards? Please give your answer in grams/milliliter. contour lines, the steeper the slope. How far is that distance (0.56 miles) in Kms? Using the surrounding contour lines, what is the approximate elevation of Deadmans Lake? The lines point toward the center of the depression. Examine unconformities 1 and 2 indicated in Figure 1.9. Axons from which neuron in the retina make up the optic nerve? The desired unit is feet. Write your answer in feet. If the arrow is pointing toward the contour lines around your location, your location is a higher elevation than the index contour line. This plate boundary isn't as simple as the previous examples, meaning another nearby plate boundary directly influences it. In Figure 9.4, what is the elevation of the highest point on Hunt Ridge (keep in mind step #4 from the first question)? Contour Interval on Topographic Map. What type of plate tectonic boundary is at this exact location? the result from the nearest marked contour line. The smallest circles represent the D 009 -800 N O a) 10 b) 20 D -600 -800 N a) 10 Ob) 20 c) 40 d) 50 Which point (A,B,C, D) has an elevation of 344 feet? This is a critical skill to prepare students to learn about more complex geologic maps. What do close contour lines represent on a map? Location A is higher. 225 feet; half the contour interval lower than 250 feet. It is usually shown in or near the map's legend. available from: Open Geosciences. Stream You will receive a link and will create a new password via email. Also no adds. In Figure 9.7, what is the elevation of the lowest point in the crater? The intersection between the landscape and the horizontal paper marks the location of the contour lines on a two-dimensional map. A contour interval in surveying is the vertical distance or the difference in the elevation between the two contour lines in a topographical map. In the given figure contour interval is 50 feet. To solve a math problem, you need to figure out what information you have. 46, black arrow). Write your estimates for the elevation at each waypoint next to the waypoint. As you look at the map, notice that the contour To calculate this divide the distance (in centimeters) between the two islands by the difference in their ages, Examine the headings of the measurements that you took for the previous two questions. They then cross the stream and turn back along the opposite bank of the stream forming a "v". How far (in Km) did the pole move in one year during this time period? 1. Figure out math tasks Determine Contour Interval and Contour Line Values. The Grand Canyon is an extraordinarily steep area. What type of process is going on at this location? A high relief. (b) Notice how a mountain saddle, a ridge, a stream, a steep area, and a flat area are shown with contour lines. Definition of Contour: A contour or a contour line may be defined as the line of intersection of a level surface with the surface of ground. Widely separated contour lines indicate a gentle slope. 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). At 500 degrees Celsius, rocks will be buried to about _______ km depth. A contour is a line drawn on a map that joins points of equal height above sea level. If the numbers associated with specific contour lines are increasing, the elevation of the terrain is also increasing. vertical scales on your topographic profile are not the same. To show information. Why would a smaller ratio scale be used for this map in comparison to the Garibaldi map? Salmon River This map is a geologic map of glacial geology in the area, drawn Transcribed image text: any point by finding the nearest labeled line, counting the number of lines indicate what information is contained on a topographic map, and where it can Write your answer in feet. The vertical distance or difference in elevation between contour lines is known as a contour interval. In Figure 9.4, what is the elevation of Malcome Bog? (Hint: Speed= Distance/Time). Contour lines Lines or isolines on a map that connect points with the same elevation. (The benchmarks have an "x" to locate the spot where the elevation was surveyed). B. Construct flow lines emanating from each point " x " to illustrate the groundwater flow field on the map. Australia and Antarctica separated after the break-up of Pangaea. The shaded areas indicate the 95% confidence intervals. If the map has 40-foot contour intervals, then Point A is located at 3,000 feet, and Point B is located at 2,840 feet. Introductory Physical Geology Laboratory Manual First Canadian Edition (v.3 - Jan 2020) by Joyce McBeth; Karla Panchuk; Tim Prokopiuk; Lyndsay Hauber; and Sean Lacey is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License, except where otherwise noted. What does each contour line on a map show? Please enter your email address. Hint: draw a simple map or a rough cross-section sketch to help illustrate your logic. It is important for the farmer or irrigator to identify the slopes on the land. The lowest contour line is at 200m. which of the above geologic events is the seventh in the sequence? (1 pt) What is the longitude along the eastern edge of this rectangle? The contour music definition is the same definition in any medium such as visual art,. slope percent = rise/run 100 Show that the streamlines of \nabla \varphi are orthogonal to the level surfaces of \varphi. tilting. Index contours are bold or thicker lines that appear at every fifth contour line. What shape are the contour lines that cross a valley or stream? 250/5 = 50. Question 20. far apart represent gentle slopes. Contour intervals must be obeyed, therefore the contour line elevations can only be multiples of the contour interval . Write your answer in feet. -- - . Write your answer in feet. Which is the code used for the design of the RCC Bridge? The figure above illustrates a depression and its representation using contour lines.
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