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River Discharge Lab Report Applied Geomorphology

Order ID53563633773 TypeEssay Writer LevelMasters StyleAPA Sources/References4 Perfect Number of Pages to Order5-10 Pages

Description/Paper Instructions

Department of Geography and Environmental Studies, Wilfrid Laurier University

282 GG

ADD ON TO PART 1 IN LAB 4 EXERCISE

#7 and #8 have been added as new questions.

River Discharge in Applied Geomorphology

Watershed of the Nith River

In Google Earth, look at the Nith River, including the sites of some of the gauging stations. Usage Google Earth to learn about the area’s topography and cultural landscape, with a focus on land use. Examine the geomorphology of the channel, as well as the surficial geology and physiography maps.

Curves of Flood Frequency

Download and open the Nith River Stations Excel spreadsheet; your TA will assist you in understanding how the data is displayed. For the station Nith River above Nithburg, the calculations and graph are finished (refer to the lab handout). Complete the calculations and graphs for the other two stations that show Maximum Instantaneous Discharge vs. Recurrence Interval. To complete the calculations, rank each station’s maximum instantaneous discharge data and compute a recurrence interval for each record.

Answer Questions 1, 2, and 3 by performing the computations required. SAVE your documents. The Excel document that you will generate will contain the solutions to Questions 1, 2, and 3.

Q1. For each station, plot the annual maximum instantaneous discharge as a function of the recurrence interval (produce a scatterplot). Three graphs will be presented (one is already created for you). Each data set from a station should be treated separately. Draw a straight line through any data points with a recurrence interval of more than or equal to 1.5 years. To make the line, utilize a curve fitting process (use a logarithmic function). Make a copy of your finished graphs. into a document that will be submitted (5 points)

Q2. The maximum instantaneous discharge value for each year is shown in the IMAX column. Calculate the mean of each station’s annual maximum discharge series.

The Mean Annual Flood is a parameter. In m3s-1, express your response. Showcase the the end result (1.5 marks)

Q3. Determine the recurrence interval of the Mean Annual Flood from each station using your graphs or formulae (preferred is the equation). Present your findings. (1.5 points)

Q4. Estimate the magnitude of the Nith River’s 100-year flood using the flood frequency curves.

At each location, there is a river (1.5 marks)

Q5. Calculate the magnitude of flow (flood) episodes with recurrence periods of 5, 20, and 50 years.

For the three stations, it’s been 50 years. Fill in the blanks in the table below and analyze the results. The table shows the probabilities. (4.5 points)

Annual Flood Discharges and Probabilities for the Nith River are shown in Table 1.

Recurrence

Interval

Flood Magnitude’ (years) (m3/s) The likelihood of an event occurring in a given year. Intensity of incidence in the next ten years Above the Nith River

Nithburg Nith River at New Nithburg Nithburg Nithburg Nithburg Nithburg

Near the Nith River in Hamburg

Canning

5

20

50

Here are your probability calculations for a 5-year Recurrence Interval (RI):

(You can write it by hand, photograph your work, and then attach the the.jpeg.)

Calculations using the Manning Equation

Examine the diagram of the stream channel and nearby floodplain on page 9 of the lab background document. Consider a number of different flow scenarios. The water is contained within the channel under the first set of circumstances. Initially, the water level is low, then moderate, and finally, the water level is at the bankfull channel depth. Mannings n and the gradient are given values for each condition (S). Solve for R (hydraulic radius) and V (channel volume) using the channel geometry (velocity).

Q6 a) Flow in a single channel. The flow is contained within the canal here. Solve for R and V using the roughness coefficients and slope values in the table. (6 points)

Mannings n SR (m) V (m/s) Water Depth in Channel (m)

0.25 0.046 0.001

0.75 0.036 0.001

2.0 0.030 0.0015

Here’s one set of calculations (calculation for R, the calculation for V):

(You may write it down and photograph it, then submit a photograph of your rough work):

Q6 b) Flow Above Flood Stage in the Channel The flow has exceeded the channel’s bank full capacity, and the water level has risen to 2.5 meters above the channel’s bed. What are R and V if we use the roughness and gradient values below? (2 points)

Mannings n SR (m) V (m/s) Water Depth in Channel (m)

2.5 0.030 0.0015

Q6 c) A floodplain is depicted in the diagram. Water flows out onto the floodplain when the flow surpasses the bankfull capacity. Assume that the flow has exceeded the channel’s bank’s full capacity and that the water level has risen to 0.5 meters above the floodplain surface. What are R and V for the floodplain if we use the roughness and gradient numbers below? (2 points)

Above-ground water depth

Mannings n S R (m) V (m/s) Floodplain (m) Mannings n S R (m) V (m/s)

0.5 0.25 0.0015

Q7. INCLUDE THE FOLLOWING QUESTIONS AND ANSWERS IN YOUR ORIGINAL DOCUMENT:In Question 6, you used the Manning equation to compute the V(m/s) for our hypothetical river, as shown in the image below. You will now calculate the Discharge (Q = A x V) using the River Velocity you calculated earlier.

Q7 a) Calculate the Discharge (Q) for the identical scenarios using the Velocity values from Question 6.

(6 points)

Channel Water Depth (m)

n Mannings

A(m2) Q(m3/s) S V (m/s)

0.25 0.046 0.001

0.75 0.036 0.001

2.0 0.030 0.0015

Here’s an example of a Q calculation:

(You may write it down and photograph it, then submit a photograph of your rough work):

Q7 b) Calculate the Discharge (Q) for the river channel using the Velocity numbers from Question 6b.

(2 points)

Above-ground water depth

flooded area (m)

n S V (m/s) Mannings n S V (m/s) Mannings n S V (m/

A(m2) Q(m3/s)

2.5 0.030 0.0015

Q7 c) Calculate the Discharge (Q) for the river floodplain using the Velocity numbers from Question 6c.(2 points)

Above-ground water depth

flooded area (m)

n S V (m/s) Mannings n S V (m/s) Mannings n S V (m/

A(m2) Q(m3/s)

0.5 0.25 0.0015

Consider the velocity of the channel when it is overbanked.

a) Describe how the velocity changes as it approaches the floodplain. (1 point)

b) Using the Hjulstrom Curve (included in the Excel file), how would fine, medium, and coarse sand be delivered at that velocity? (3 points)

c) In the floodplain, what sediment sizes are most likely to be found? (1 point)

RUBRIC

QUALITY OF RESPONSENO RESPONSEPOOR / UNSATISFACTORYSATISFACTORYGOODEXCELLENTC ontent (worth a maximum of 50% of the total points)Zero points: Student failed to submit the final paper.20 points out of 50: The essay illustrates poor understanding of the relevant material by failing to address or incorrectly addressing the relevant content; failing to identify or inaccurately explaining/defining key concepts/ideas; ignoring or incorrectly explaining key points/claims and the reasoning behind them; and/or incorrectly or inappropriately using terminology; and elements of the response are lacking.30 points out of 50: The essay illustrates a rudimentary understanding of the relevant material by mentioning but not full explaining the relevant content; identifying some of the key concepts/ideas though failing to fully or accurately explain many of them; using terminology, though sometimes inaccurately or inappropriately; and/or incorporating some key claims/points but failing to explain the reasoning behind them or doing so inaccurately. Elements of the required response may also be lacking.40 points out of 50: The essay illustrates solid understanding of the relevant material by correctly addressing most of the relevant content; identifying and explaining most of the key concepts/ideas; using correct terminology; explaining the reasoning behind most of the key points/claims; and/or where necessary or useful, substantiating some points with accurate examples. The answer is complete.50 points: The essay illustrates exemplary understanding of the relevant material by thoroughly and correctly addressing the relevant content; identifying and explaining all of the key concepts/ideas; using correct terminology explaining the reasoning behind key points/claims and substantiating, as necessary/useful, points with several accurate and illuminating examples. No aspects of the required answer are missing.Use of Sources (worth a maximum of 20% of the total points).Zero points: Student failed to include citations and/or references. Or the student failed to submit a final paper.5 out 20 points: Sources are seldom cited to support statements and/or format of citations are not recognizable as APA 6^{th}Edition format. There are major errors in the formation of the references and citations. And/or there is a major reliance on highly questionable. The Student fails to provide an adequate synthesis of research collected for the paper.10 out 20 points: References to scholarly sources are occasionally given; many statements seem unsubstantiated. Frequent errors in APA 6^{th}Edition format, leaving the reader confused about the source of the information. There are significant errors of the formation in the references and citations. And/or there is a significant use of highly questionable sources.15 out 20 points: Credible Scholarly sources are used effectively support claims and are, for the most part, clear and fairly represented. APA 6^{th}Edition is used with only a few minor errors. There are minor errors in reference and/or citations. And/or there is some use of questionable sources.20 points: Credible scholarly sources are used to give compelling evidence to support claims and are clearly and fairly represented. APA 6^{th}Edition format is used accurately and consistently. The student uses above the maximum required references in the development of the assignment.Grammar (worth maximum of 20% of total points)Zero points: Student failed to submit the final paper.5 points out of 20: The paper does not communicate ideas/points clearly due to inappropriate use of terminology and vague language; thoughts and sentences are disjointed or incomprehensible; organization lacking; and/or numerous grammatical, spelling/punctuation errors10 points out 20: The paper is often unclear and difficult to follow due to some inappropriate terminology and/or vague language; ideas may be fragmented, wandering and/or repetitive; poor organization; and/or some grammatical, spelling, punctuation errors15 points out of 20: The paper is mostly clear as a result of appropriate use of terminology and minimal vagueness; no tangents and no repetition; fairly good organization; almost perfect grammar, spelling, punctuation, and word usage.20 points: The paper is clear, concise, and a pleasure to read as a result of appropriate and precise use of terminology; total coherence of thoughts and presentation and logical organization; and the essay is error free.Structure of the Paper (worth 10% of total points)Zero points: Student failed to submit the final paper.3 points out of 10: Student needs to develop better formatting skills. The paper omits significant structural elements required for and APA 6^{th}edition paper. Formatting of the paper has major flaws. The paper does not conform to APA 6^{th}edition requirements whatsoever.5 points out of 10: Appearance of final paper demonstrates the student’s limited ability to format the paper. There are significant errors in formatting and/or the total omission of major components of an APA 6^{th}edition paper. They can include the omission of the cover page, abstract, and page numbers. Additionally the page has major formatting issues with spacing or paragraph formation. Font size might not conform to size requirements. The student also significantly writes too large or too short of and paper7 points out of 10: Research paper presents an above-average use of formatting skills. The paper has slight errors within the paper. This can include small errors or omissions with the cover page, abstract, page number, and headers. There could be also slight formatting issues with the document spacing or the font Additionally the paper might slightly exceed or undershoot the specific number of required written pages for the assignment.10 points: Student provides a high-caliber, formatted paper. This includes an APA 6^{th}edition cover page, abstract, page number, headers and is double spaced in 12’ Times Roman Font. Additionally, the paper conforms to the specific number of required written pages and neither goes over or under the specified length of the paper.## GET THIS PROJECT NOW BY CLICKING ON THIS LINK TO PLACE THE ORDER

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