The figure on the right shows the 500 mb height map for December 9 with the position of a trough and ridge . (Answer to the nearest foot.) What is the change in elevation across each contour interval (i.e., between successive "regular" contours) on this map? b. Intervals involvinq the tonal centre, and their directions of movement -1 1 0 0 0 -1 0 1 0 0 -9 0 0 0 -8 1 0 0 -7 0 0 0 -6 . of paper along a line across the area where the profile is to be constructed. Legal. 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. 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. The difference in elevation between the highest and lowest points in the area on the map. . What is the elevation of the base in feet. A contour interval is the vertical distance or difference in elevation between contour lines. How old is the burial site? Note: there is technically more than one correct answer for some of these questions. Q. Figure 7 . V shaped. a view of the landscape as seen from above. 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. Dont forget to add a contour line to the map legend! Explain how you made this decision. 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. Location B is higher. The difference between adjacent contour lines. The final answer we get after dividing is the contour interval of the specific topographical map. Australia and Antarctica separated after the break-up of Pangaea. 14. Topographic Which of the following places represent a Wadati-Benioff zone? How are the tops of hills, mountains or depressions (dips) shown on a topographic map? The number of lines obtained in the above step is taken and added with 1. a. amacrine cells b. photoreceptors c. bipolar cells d. retinal ganglion cells, In Figure 1.8, which of the following rock layers is. The contour line is a line which defines the outline of an object. 400 D. N a) point A 00 D. N a) point A b) point D c) point B d) point Write your answer in feet. a landform it is necessary to construct a topographic profile or cross-section distance is found on the scale. To keep the contour map simple and easy to read, not every contour line is marked with its elevation reading. What is the term for the geologic feature called Carter Lake? Consideration in making the choice of the proper contour interval . How far is that distance (0.56 miles) in Kms? What is the latitude for the southeast corner of the map? The following are general think about the drainage pattern you selected in the previous answer - what does this tell you about the underlying rocks? A contour is a line drawn on a map that joins points of equal height above sea level. Earthwork estimations for any type of structure like bridges, dams or roads can be found out with the help of contour intervals in a map. An error message is displayed. 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). Location B is higher. Explain why. b. Now look farther south of Sloans Crossing at Hwy. 1 What is the contour interval on this map? (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. Does your topographic profile show any peaks or valleys? To determine the %slope from Point A to Point B, the rise and run must first be determined. Taking the area to be mapped, contour intervals are considered. Sorry, you do not have permission to ask a question, You must log in to ask a question. 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. Which of the three proposed plate tectonic mechanisms would NOT occur at this location? Vertical Pick two contour lines that are next to each other and find the difference in associated numbers. e. Place the paper In Figure 9.4, what is the elevation of Malcome Bog? What is the longitude for the Washington Monument, locate the base of the monument. slope percent = (120ft / 1000ft) 100 = 12% Are streams in this area downcutting or laterally eroding? (The benchmarks have an "x" to locate the spot where the elevation was surveyed). Step 2. On our map, point "P" lies between 3000 feet and 4000 feet contours . Write your answer in feet. The contour music definition is the same definition in any medium such as visual art,. he areas enclosed by contour lines at 5 m interval for a reservoir upto the face of the proposed dam are as shown below value of Contour lines 100,510l0,1015,1020,1025,1030,1035 Area (m2) 653/2 ,653, 653*2, 653*8, 653*18 ,653*25 , 653*40 Taking 1005m and 1035 m as the bottom most level and the highest water level achievable of the reservoir. 68 and south of the Edmonson County Line. As a contour approaches a stream, canyon, or drainage area, the contour lines turn upstream. The distance between these areas is ~1.6 miles (measured along the curving distance of the non-magnified stream). According to the geothermal gradient, rocks buried 75 km beneath the surface would normally be at what temperature? What type of process is going on at this location? 2009-2021 The Constructor. All points on a contour line are at the same elevation. Lines: Contour lines are used to determine elevations and are lines Given that this portion of Pangaea broke apart 200,000,000 years ago, calculate how fast South America and Africa are lines enclose smaller and smaller areas. To calculate the vertical exaggeration in the topographic profile shown in Figure 3.6 we divide the horizontal scale by the vertical scale: (\(\frac{\frac{1000\;ft}{1\;inch})}{(\frac{100\;ft}{inch}}) = 10\). The circled points indicate days that were at least partially spent at the study side; red circles indicate days with frequent sampling . Approximately how far did the pole move per day? 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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. Figure 3. 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. Then, find the difference in elevation between the two points. (1 pt) Find Deadmans Lake (it is located close to Cheakamus River and south of Daisy Lake; refer to Figure 7-E8 which is a close up from the map area). Overview section 7.3 provides background information on contour lines to prepare you for these exercises. The word contour comes from French, and it is defined as meaning the "outline" of a subject, it often defines a form or an. during a flood the river breached the natural levee flowing into the floodplain. They then cross the stream and turn back along the opposite bank of the stream forming a "v". What is the gradient? slope percent = rise/run 100 The zone from 5100-6400 represents the Earth's ? A low relief. Flood stage, or bankfull stage, on Sweetwater Creek occurs at a discharge of ~4,500 cfs. 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 . 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).
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