Stream 400 D. N a) point A 00 D. N a) point A b) point D c) point B d) point (Answer to the nearest foot.) d. Prepare a vertical The contour interval is stated on every topographic map and is usually slope percent = rise/run 100 Contour line art is a method of drawing where you draw only the outline of an object, without any shading. What is the contour interval on a map based on? The numbered contour lines are the index contours; the unnumbered contour lines are the supplemental contours. What is the elevation of the base in feet. Answered: Topographic Maps EXERCISE 2 POST-LAB | bartleby Contour Lines tops of peaks, and some are marked with xs with numbers next to them. "Contour" actually means "outline" in French, which is where the name comes from. Given that this portion of the Australian plate moves at a speed of 2.2 inches per year, how old are the snake fossils? 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. Joyce McBeth; Karla Panchuk; Tim Prokopiuk; Lyndsay Hauber; and Sean Lacey, 1.3 GEOLOGY & RESOURCE MAPS FOR CANADIAN PROVINCES & TERRITORIES, 1-E1 LAB EXERCISES CANADIAN GEOLOGY & MINERAL AND ENERGY RESOURCES, 1-E2 LAB EXERCISES REGIONAL GEOLOGY & MINERAL AND ENERGY RESOURCES, 2-E1 LAB EXERCISES MINERAL IDENTIFICATION, 3.5 IGNEOUS ROCK FORMATIONINTRUSIVE VS. EXTRUSIVE, 3.6 LAB EXERCISES IGNEOUS ROCK IDENTIFICATION, 4-E1 LAB EXERCISES SEDIMENTARY ROCK IDENTIFICATION, 5.4 LAB EXERCISES METAMORPHIC ROCK IDENTIFICATION, 6.7 LAB EXERCISE CHOOSING ABSOLUTE DATING METHODS, Answers to Practice Lab Exercises in section 7-E1, 8.6 GEOLOGIC STRUCTURES CREATED BY PLASTIC & BRITTLE DEFORMATION, 8-E5 EXERCISES COMPLEX GEOLOGICAL MAPS & CROSS-SECTIONS, 9-E1 LAB EXERCISE LOCATING AN EPICENTER, 9-E3 LAB EXERCISE HISTORICAL EARTHQUAKE, 10.3 STREAM GRADIENT AND THE CYCLE OF STREAM EROSION, Introductory Physical Geology Laboratory Manual First Canadian Edition (v.3 Jan 2020), https://pub.data.gov.bc.ca/datasets/177864/pdf/092G/092G095.pdf, Next: Extra Practice Question on Topographic Maps, Introductory Physical Geology Laboratory Manual First Canadian Edition (v.3 - Jan 2020), Creative Commons Attribution-ShareAlike 4.0 International License. Compare the contour intervals from the Royal Gorge, Colorado map (map 5.1) to the Omaha N, Nebraska-Iowa map. This is a graded activity, please submit it to your TA at the end of the lab. None of these. 7. They also show some features made by people such as brodges. (1 pt) Mount Price is located next to Garibaldi Lake (just west of Table Bay, Figure 7-E9 above). Table of Contents and lab manual chapter pdf files for download, Overview of Canadian Geology and Mineral and Energy Resources, 4. The intervals +4tt and 4tt, then, respectively showed intervals ascending and descending from the tonal centre. Mark Absolutley amazing app and would definitely recommend. 250/5 = 50. Lab 7 Activity - Laboratory Manual for Earth Science - BCcampus 3.6: Drawing Contour Lines and Topographic Profiles Extra Practice Question on Topographic Maps, Overview of Geological Structures Part 1: Strike, Dip, and Structural Cross-Sections, Exercises on Geological Structures Part 1: Strike, Dip, and Structural Cross-Sections, Overview of Geological Structures Part 2: Folds, Faults, and Unconformities, Exercises on Geological Structures Part 2: Folds, Faults, and Unconformities, 6. The distance between these areas is ~1.6 miles (measured along the curving distance of the non-magnified stream). b. Once your contour lines are drawn, you will notice that you had to draw some lines closer together in some areas and wider apart in other areasand that you may have even enclosed an area by drawing a contour line in a circular pattern. How far did the pole move? Learn more about how Pressbooks supports open publishing practices. Generally, there are various contour intervals for the various maps. Contour lines do not cross each other, divide or split. 31W. If the river on this map is 1.93 miles long, what is the gradient for this river? Write your estimates for the elevation at each waypoint next to the waypoint. Put simply, contour lines mark points of equal elevation on a map. which of the above geologic events is the second in the sequence, which of the above geologic events is the fifth in the sequence. Zoom out and examine the surrounding area, what geological hazards are likely in the area? Is the church likely to be at risk of contamination from this same leak? The horizontal distance between two points on two consecutive contour lines for a given slope is known as horizontal equivalent. Q: Refer to figure 23.5. A contour interval is the vertical distance or difference in elevation between contour lines. A person standing at point "F" would only be visible to a person standing at: Examine the figure below. look at a map of the Sulphur-Boundary Creek area along the Middle Fork of the Geology Labs 1-6 (some questions and answers, Applications and Investigations In Earth Science, Dennis G. Tasa, Edward J. Tarbuck, Frederick K. Lutgens, Chapter 42: The Physician's Office Laboratory. be found. The steepest slope on this hill can be found on the side that is facing which direction? How big is the base (area) of the washington monument in sq feet? Considering the above map, the steps involved in contour interval calculation are. Location A is higher. Horizontal MATLAB automatically selects the contour lines to display. Large contour interval is to be used if the time available for the survey work is less. Contour lines never cross. The lowest contour line is at 200m. The difference between two adjacent contours is called the contour interval, which is 10 ft for the Figure 2-2 example. What are the different types of handrails used in bridges? Describe how you decided on an estimated elevation for points A and E. c. Is the elevation of waypoint A > (greater than) or < (less than) waypoint E? View Source. What is the latitude for this monument? The speed the islands are sinking can be estimated by measuring the difference in elevation between two islands and dividing by the difference in their ages (this method assumes the islands were a similar size when they were active). PDF 2-1. BATHYMETRIC CHARTS - UMass D A red "X" in Figure 9.5 marks a spot on a contour line along the shore of Baskahegan Lake, but the printed DEM doesn't say anything about its elevation. please add a brief explanation thank you What are Contour Lines? | How to Read a Topographical Map 101 The difference in elevation between one contour line and the next. How is the top of a mountain shown on a topographic map? Why are colors and symbols used on topographic maps? In the early days of ribosome research, before the exact role of ribosomes was clear, a researcher made the following observation. What Is Contour Interval & How To Calculate It - Civiconcepts The commonly used contour interval is 20 feet for a 1:24,000 map scale. far apart represent gentle slopes. It is usually every fifth line that indicates a change in elevation. In the context of evolution through natural selection, explain why multicellular organisms have specialized exchange systems and surfaces. Hint- make sure to re-read the section on plate boundaries before answering! 8,194,375 years to sink. Melodic contour is the shape and sequence of movements of a melodic line. A topographic map is a precise, graphic representation of the three-dimensional shape of the earth's surface. 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. Are the rocks likely tilted and folded or horizontal? 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). A. Contour the water table data, using a contour interval of 10ft. 0.5 in 24,000 in/in = 12,000 in CHAPTER 3 - ELEMENTS OF TOPOGRAPHY - Food And Agriculture Organization do not cross each other, divide or split. The number of contour lines in-between 7000 and 7100 are 4. The Contour Interval of the above map us 20 Units. Answer: B. A contour interval is the vertical distance or difference in elevation between contour lines. Difference of annual-mean surface zonal wind stress (N m 2) computed as the simulation with flattened topography (FLAT) minus control (ALL) from ref. trend up valleys and form a "V" or a "U" where they cross General Because the stream flows south, contour a, which lies downstream of contour b, must be the lower of the two. Upon adding divalent ions, she could regain 70S70 S70S particles, but never 1005 or 1305 particles. Examine unconformities 1 and 2 indicated in Figure 1.9. . Write your answer in feet. Locations A and B are at the same elevation. (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 topographic profile is a cross-sectional view The difference between Contour intervals and Horizontal Equivalent are tabulated below: Contour Lines and Its Types, Characteristics and Uses in Surveying. Locations A and B are at the same elevation. Contour chart in excel | Math Index (1 pt) Examining your map, you will see there is a black line that outlines a rectangle that takes up most of the map area. Follow the creek along its path. Description. Flood stage, or bankfull stage, on Sweetwater Creek occurs at a discharge of ~4,500 cfs. The direction system is useful but imprecise. BIOMEDICINE: Digestive System | Description o. 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 To construct a profile, you need graph paper, a ruler, and a pencil. The rendition of this topography as an isoline (contour) map from an overhead perspective is shown directly below. For small scale maps covering a wide area of varying terrain, For rough topographical map meant for initial assessment only, If a detailed map is to be prepared for execution work, If the ground has large variation in levels, for instance, hills and ponds, No measurement or scaling is required since the contour levels are indicated on the contour lines, The distance must be measured on the map and converted to actual distance by multiplying with the scale of the map, In a given map the contour interval is a constant, The horizontal equivalent varies with slope. Contour interval: The change in elevation from one contour line to the next is always the same within the same map.Many maps have either a 40- or 80-foot contour interval: An 80-foot interval simply means that each contour line is 80 vertical feet away from . Considering the size of the area to be mapped, contour intervals are assumed. example. What type of drainage pattern is present in this area? These circular patterns indicate hilltops, like in the diagram below (Figure 3.6). each contour to the horizontal line of the same elevation. The horizontal map distance measures 0.5 inches. Be sure to only plot those elevations that are at the intersection of the contour line with line A-B. on the paper the exact place where each contour, stream and hill top crosses (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. Was Carter Lake cut off before or after the state boundary between Nebraska and Iowa was drawn? on a topographic map base. For producing a detailed study of Vertical Topographic Sharp contour points indicate pointed ridges. Geology Labs 1-6 (some questions and answers missing) e. Place the paper fault. Show your work below. The height of an object above the surface of the sea. Examine the path of the river that feeds into and flows out of Quail Lake. The Grand Canyon is an extraordinarily steep area. What is the benchmark elevation at Sloans Crossing? Example 1- In the graphic below, what is the vertical distance between the contour lines? 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. Pick two contour lines that are next to each other and find the difference in associated numbers. exaggeration: Then, find the difference in elevation between the two points. Is Lake Creek flowing into or out of Phelps Lake? Answered: Please draw he contour line of the | bartleby distance is found on the scale. At 75 km depth, rocks will be heated to about _______ degrees Celsius. shows the surface features, or topography of Earth or a certain area. 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. d. Is the elevation of waypoint D > or < waypoint C? 3. What is the dc saturation current? The numbers are the elevation at the top of the peak. (in feet) between the two points. Please use Occams razor as you answer the questions: use the simplest explanation rather than the most complicated explanation to answer the question. 40 feet. See example under CONTOUR/SPACING below. 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. The river in this area has a rather particular pattern, what geologic process caused this? What is Melodic Contour in Music? - Study.com To calculate the vertical exaggeration in the topographic profile shown in Figure 3.6 we divide the horizontal scale by the vertical scale: (\(\frac{\frac{1000\;ft}{1\;inch})}{(\frac{100\;ft}{inch}}) = 10\). What does each contour line on a map show? maps also have a vertical scale to allow the determination of a point in three Step 3. Make sure to zoom out to get a good view of the relevant features. -- - . Gradient: Stream gradient can also be determined from a topographic The figure above illustrates various topographic features. Explain why. unit_3_lab_ch.odt - Question 1 (4 points) The river in this figure is 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 from a distance), you can draw what is known as a topographic profile. The circled points indicate days that were at least partially spent at the study side; red circles indicate days with frequent sampling . The image to the left shows a perspective view of a river mouth at the head of a valley between a steep cliff (to the left) and a smoother slope (to the right). The direction of plate movement in the last 1.1 million years. What is Contour Interval? | Complete Guide - Civil Lead Take that distance and divide it by the speed you calculated in question 3 to estimate when the next supercontinent will form. Note: The intervals are increasing, therefore, the contours indicate a hill. 2. Does your topographic profile show any peaks or valleys? It is thought to have formed by the runoff of either precipitation or groundwater. The following are general To use the same interval for both x and y , specify xyinterval as a two-element vector of the form [min max]. It is south of Mammoth Cave. At 500 degrees Celsius, rocks will be buried to about _______ km depth. 13. Step 2. fairmount. Generally, there are totally distinct contour intervals for various maps. which of the above geologic events is fifth in the sequence. contour lines, the steeper the slope. (1 pt) What is the ratio scale of this map? Which one travels faster? The terms below For example, the first hill on the left has a top contour line of 50ft. Write your answer in feet. which of the above geologic events is the seventh in the sequence? the "V" points to the area of higher elevation or upstream. Every sixth contour line has an index contour, which is a bolder or thicker line. What type of drainage pattern would this area represent? c. Label each mark along a line drawn through a portion of a topographic map. Determining In every map, on the right-hand bottom side, the contour interval is described. As a contour approaches a stream, canyon, or drainage area, the contour lines turn upstream. Answered: 1. What is the contour interval of the | bartleby . North 3050 4000 ft 1 km 3050 1:25,000 A. Contour interval 10 1.3 Tips for Measuring %Slope on Contour Maps Understanding Topographic Maps - Idaho State University It is impossible to determine which location is higher. 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. long-term time-average of sea level). First, subtract the lower number from the higher number and then divide the result by the number of contour lines. Solved What is the contour interval for the figure below? D - Chegg Now calculate the difference between the two-selected index contour line selected from a map. The zone from 20-2900 Km represents the earth? What is the profile view to Topographic Map #1? Measure the distance, using bar scale, between the pole in 1400 and 1500 (locations C and D). 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. f. Is the elevation of waypoint C > or < waypoint B? Scale: Maps come in a variety of scales, covering areas ranging from from the highest, and dividing the result by the horizontal distance. When the vertical dimension of your graph is different from the horizontal dimension on your map, you may end up with a graph that shows a vertical exaggerationand the features of the Earth represented by your topographic profile may be deformed such as in Figure 3.7. right hand portion of the window. Please hand in this lab to your TAs at the end of the lab period. What shape are the contour lines that cross a valley or stream? Please refer to this Saskatoon topographic map to complete the next three questions. Refining interval counts to include these produced Figure 7 and - Table 8, below. 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). which of the following is the best way to obtain an absolute date for the sequence of rocks, the geologist determines there is 78.3% of the parent remaining in the sample that they examine. A contour map consists of contour lines of a given geographical region. located below the scale. When the contour interval is not specified in the map, it can be calculated as explained in the following sections. What is the change in elevation across each contour interval (i.e., between successive "regular" contours) on this map? Transcribed image text: (5 pts) Figure 7-E4 shows five waypoints (A, B, C, D, and E) on a topographic map. Are streams in this area downcutting or laterally eroding? Measure the horizontal map distance between points A and B to get the vertical ground distance. D) Nothing. Topographic In this case, to find out the intermediate points elevation, contour intervals are used. Suppose that (x,y,z)=i+k\nabla \varphi(x, y, z)=\mathbf{i}+\mathbf{k}(x,y,z)=i+k. A darker, heavier contour line that is labeled with an elevation. How far apart are North America and Mainland Asia in cm? What type of stream drainage pattern is present on this map? a) Label the elevation of every contour line on the map. 2. Why do you think then that only a 1-2 drops of indicator is used in an acid-base titration? The elevation at sea level is zero meters. Point D is marked at 10,000 elevation and the next label is marked as 10,500 elevation. As you look at the map, notice that the contour Line 1 starts with the contour interval, not the projection point. First, we must identify the two contours that lie on either side of "P." In some cases the contours that we need are clearly labeled; however, in other instances, you will need to use the contour interval (1,000 feet, in this case) to "count" up or down from a labeled contour. B. If you were to walk the path of a contour line in real life, you would remain at the same elevation the whole hike, never traveling up or down. This content is subject to copyright. 9.4) to estimate the elevation of this point as accurately as possible. 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. For consistency, assume that elevations between contour lines are 1/2 a contour interval higher than elevation of the lower line. Contour interval calculator - Math Index Adjacent means next to. What is the contour interval of the Figure 9 map (shown at the bottom of the page)? The following are general characteristics of contour lines: 1. Forests across much of the United States are becoming denser. What type of plate tectonic boundary is at this exact location? slope of the area you are interested in by subtracting the lowest elevation 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. For the following exercises, please refer to British Columbia Topographic Map 092G095 of the Mount Garibaldi area in southern BC. Write your answer in feet. The contour interval is determined by the scale of the map and the degree of relief of the terrain being represented. Sometimes vertical exaggeration is desiredbut, in some cases, you may not want it. 30 seconds. How far have the snake fossils moved apart since they were originally deposited? 31. Contour lines that are very close together indicate a steep slope. Indicators themselves are weak acids or weak bases. (1 pt) What is the longitude along the eastern edge of this rectangle? Why would a smaller ratio scale be used for this map in comparison to the Garibaldi map? Note: This lab is in colour. Please give your answer in grams/milliliter. o drainage ' divide or watershed boundary 1000 ft -::-:: Contour interval 50 Feet Figure 12.5 Flow lines across a topographic surface. How to Determine Elevation From a Topographic Map in the southern portion of the map, the area is underlain by limestone. which means that every place between the marked 6800 foot line and the next Taking the area to be mapped, contour intervals are considered. The other side is covered with a layer of fiberglass 2.5cm2.5 \mathrm{~cm}2.5cm thick. Measure in centimeters the distance (Map Length) between the two points you recorded in the previous question. 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 three proposed plate tectonic mechanisms would NOT occur at this location? (a) Suggest what the 100S100 \mathrm{~S}100S and 130S130 \mathrm{~S}130S particles might represent, in light of current knowledge of protein synthesis. 5.5 Contour Lines and Intervals | NWCG interval. First Edition. What Is Contour Interval? Search for the "Washington Monument" and zoom into 3000 feet eye altitude. It is impossible to determine which location is higher. with the labeled contour lines at the bottom of the profile paper and project Show your work! backward or by clicking on the arrows above and below the eye in the upper Index contour lines: Every fifth contour line is a thicker, "index" line.At some point along that line, its exact elevation is listed. Figure 6.13 | Coastal area topographic map. f. Connect the 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? What do close contour lines represent on a map? Contour intervals must be obeyed, therefore the contour line elevations can only be multiples of the contour interval . Slope Worksheet- Use the information from the example above and complete the slope worksheet. Question 20. Vertical exaggeration is the effect that is created when the horizontal and which Geologic Law did you use to come to the conclusion you made in the previous question? Join now! It is determined as follows: Let's take an example of two contour lines which are labelled. The contour music definition is the same definition in any medium such as visual art,. They are marked with short, straight lines inside the circle. tilting. Practice questions on Topographic Maps, 5. A beginners guide to understanding map contour lines What Is Contour Interval | Calculation of Contour Intervals | Uses of during a flood the river breached the natural levee flowing into the floodplain. 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. Join TheConstructor to ask questions, answer questions, write articles, and connect with other people. 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? This makes reading the map easier. 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?