Air Pressure Lab and Scientific Method Please answer the following 1. Please des
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Question
Air Pressure Lab and Scientific Method
Please answer the following
1. Please describe what barometers are and the two types currently in use within the meteorological community?
2. What are the two ways to describe air pressure readings (units) and what is the sea level average for both?
3. Use the table (Weather Balloon) below to answer the following questions relating to weather data over Illinois on Sunday Oct. 27.
a. What is the relationship between air pressure and altitude readings?
b. Why are sea level pressure readings and station air pressure readings different?
c. What altitude is the 500 mb pressure reading found?
74560 ILX Lincoln Observations at 12Z 27 Oct 2013
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PRES HGHT TEMP DWPT RELH MIXR DRCT SKNT THTA THTE THTV
hPa m C C % g/kg deg knot K K K
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1000.0 160
998.0 178 -5.1 -6.2 92 2.42 120 2 268.2 274.9 268.6
994.0 210 0.4 -2.2 83 3.29 131 2 274.0 283.1 274.6
990.0 242 3.2 -1.8 70 3.40 143 2 277.1 286.7 277.7
982.0 308 5.4 -3.6 52 3.00 166 3 280.0 288.6 280.5
972.0 392 6.6 -4.4 45 2.85 195 3 282.0 290.3 282.5
946.4 610 5.0 -4.9 49 2.81 270 5 282.6 290.7 283.0
925.0 796 3.6 -5.4 52 2.78 255 5 283.0 291.1 283.5
911.6 914 2.6 -6.0 53 2.68 285 11 283.1 291.0 283.6
888.0 1125 0.8 -7.2 55 2.52 285 11 283.4 290.8 283.8
877.7 1219 0.2 -8.7 51 2.27 285 11 283.7 290.4 284.1
864.0 1345 -0.7 -10.7 47 1.97 290 14 284.1 290.0 284.4
850.0 1475 0.0 -14.0 34 1.53 295 18 286.1 290.8 286.4
830.0 1666 1.6 -18.4 21 1.09 287 22 289.8 293.2 290.0
813.4 1829 1.2 -20.4 18 0.93 280 26 291.0 294.0 291.2
790.0 2063 0.6 -23.4 15 0.74 288 25 292.8 295.2 292.9
783.0 2134 0.8 -31.7 7 0.35 290 25 293.8 295.0 293.9
773.0 2238 1.2 -43.8 2 0.10 293 25 295.3 295.7 295.3
766.0 2311 2.4 -46.6 1 0.08 296 25 297.4 297.6 297.4
754.0 2438 2.2 -46.8 1 0.08 300 25 298.5 298.8 298.5
751.0 2470 2.2 -46.8 1 0.08 299 25 298.8 299.1 298.8
726.0 2743 1.1 -47.9 1 0.07 295 24 300.5 300.8 300.5
711.0 2910 0.4 -48.6 1 0.07 292 25 301.6 301.8 301.6
709.0 2933 0.4 -34.6 5 0.29 292 25 301.8 302.8 301.9
705.0 2978 0.0 -15.0 31 1.70 291 26 301.8 307.4 302.1
700.0 3035 -0.5 -12.5 40 2.10 290 26 301.9 308.6 302.3
699.0 3046 -0.5 -12.5 40 2.10 290 26 302.0 308.8 302.4
691.0 3138 -1.1 -12.1 43 2.20 290 26 302.4 309.4 302.8
685.0 3208 -0.9 -24.9 14 0.74 290 27 303.3 305.9 303.5
677.0 3301 -1.1 -34.1 6 0.32 290 27 304.1 305.3 304.2
673.0 3348 -0.9 -24.9 14 0.76 290 28 304.9 307.5 305.0
668.0 3407 -1.3 -17.3 28 1.48 290 28 305.1 310.0 305.3
647.2 3658 -3.0 -15.9 37 1.72 290 29 305.9 311.5 306.2
642.0 3722 -3.5 -15.5 39 1.79 289 29 306.1 311.9 306.4
626.0 3921 -4.1 -21.1 25 1.14 286 31 307.6 311.5 307.8
622.7 3962 -4.3 -21.1 26 1.14 285 31 307.9 311.7 308.1
603.0 4215 -5.3 -21.3 27 1.16 289 30 309.5 313.5 309.7
599.0 4267 -5.3 -25.1 20 0.84 290 30 310.0 313.0 310.2
588.0 4412 -5.5 -35.5 7 0.32 291 30 311.5 312.7 311.6
564.0 4736 -7.9 -34.9 9 0.35 294 30 312.4 313.7 312.5
558.0 4819 -8.5 -27.5 20 0.72 295 30 312.6 315.2 312.8
553.8 4877 -8.6 -33.9 11 0.40 295 30 313.2 314.6 313.2
552.0 4903 -8.7 -36.7 8 0.30 295 30 313.4 314.5 313.4
524.0 5303 -11.3 -40.3 7 0.22 295 35 314.9 315.8 315.0
511.0 5495 -12.7 -38.7 9 0.26 295 37 315.5 316.5 315.6
500.0 5660 -14.3 -26.3 35 0.90 295 39 315.5 318.7 315.7
Source:
4. Please refer the scientific methodLinks to an external site. reading:
Please address how the scientific method could be used to address issues relating to the factors related to the Ideal
Gas Gas (Page 105 in your work)
Use the observations from Lincoln, Illinois (above) and Key West, FL to verify how temperatures impact patterns associated with the Ideal Gas
Law. Use the following steps to verify the following research question: Do temperatures impact air pressure readings?
Clearly, I would assume you can identify that temperatures are warmer in Key West and this should impact air pressure readings. Will temperatures, which are warmer in southern Florida, increase
or decrease air pressure values? Use the list below to address and structure a true scientific approach to addressing this question.
Make observations (Review your chapter 4 readings 101-107 and associated videos for chapter 4) This step, in theory, is required in developing your knowledge to proposed a hypothesis. Again, I want you to focus on how temperature and density of air. Do warmer temperatures tend to lead to higher or lower air pressure at the surface of the earth? HIGHER 500 AND 850 MB HEIGHTS RELATE TO AIR EXPANDING AND BEING LESS DENSE AT THE SURFACE.
Please answer the following questions
2. Make a specific statement or observation referencing how air reactions to temperatures with references to expanding or compressing air. In turn, what impact should these processes have on surface air pressure readings.
Propose a NULL hypothesis.(Make a clear testable hypothesis statement relating how surface temperatures and air pressure are likely related)
Example: The two classes have NO differences on test scores.
Example 2: Air temperatures has _______ impact on surface and upper air level air readings.
Hint: What word would you use to make example two a correct null hypothesis for this project?
3. Design and perform an experiment to test the hypothesis (Locate both the 850 mb and 500 mb values for both location. Please record the altitude for each location and graph the values using some sort Microsoft Excel graph option (line graph, histogram, or bar chart). The goal is to use proper labeling to clearly see which location (Illinois or Florida) have higher altitude readings. Higher altitude readings means air is expanding and producing low air pressure through producing lower density air. Higher air pressure readings for the same altitude, in theory, directly relate in lower air pressure readings due to air expanding at the surface of the earth. Use the attached file to help you complete this step: Copy of APLab2.xls [Preview the document] [View in a new window]
Use this file which already the data input into an Excel spreadsheet. Highlight the cells with data and select the input menu to generate some sort of graph to capture the difference in the 850 and 500MB heights over Illinois and Key West.
4. Analyze your data to determine whether to accept or reject the hypothesis. Examine your graph and evaluate to accept or reject your hypothesis. Did your findings support your hypothesis (support or reject)? Make sure to reference your chart/graph when answering this step.
Please attach your graph with your short answers
72201 KEY Key West Observations at 12Z 27 Oct 2013
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PRES HGHT TEMP DWPT RELH MIXR DRCT SKNT THTA THTE THTV
hPa m C C % g/kg deg knot K K K
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1015.0 13 24.2 17.2 65 12.31 50 9 296.1 331.8 298.3
1000.0 146 23.4 17.4 69 12.66 55 20 296.6 333.3 298.8
981.8 305 22.2 17.0 72 12.55 50 22 296.9 333.4 299.2
947.9 610 20.0 16.2 79 12.34 85 21 297.6 333.6 299.8
925.0 822 18.4 15.6 84 12.19 95 17 298.1 333.8 300.3
918.0 887 18.0 14.9 82 11.74 99 16 298.4 332.7 300.5
915.1 914 17.9 14.2 79 11.24 100 16 298.5 331.5 300.6
896.0 1095 17.4 9.4 59 8.33 76 15 299.8 324.6 301.3
888.0 1171 17.0 5.0 45 6.19 66 14 300.2 318.9 301.3
883.1 1219 17.4 -2.6 25 3.58 60 14 301.0 312.2 301.7
880.0 1249 17.6 -7.4 17 2.50 61 13 301.6 309.5 302.0
853.0 1514 17.4 -10.6 14 2.01 74 9 304.1 310.6 304.4
850.0 1544 17.2 -11.8 13 1.83 75 8 304.1 310.1 304.5
821.9 1829 15.9 -13.1 12 1.71 100 4 305.8 311.4 306.1
810.0 1953 15.4 -13.6 12 1.66 86 4 306.5 312.0 306.8
798.0 2079 14.4 -11.6 15 1.98 71 5 306.7 313.2 307.1
792.8 2134 13.9 -2.4 32 4.05 65 5 306.7 319.5 307.5
790.0 2164 13.6 2.6 47 5.88 58 5 306.7 325.0 307.8
787.0 2196 13.6 4.6 54 6.80 51 4 307.1 328.1 308.3
783.0 2239 13.4 3.4 51 6.28 41 4 307.3 326.8 308.5
775.0 2326 13.6 -14.4 13 1.63 21 2 308.4 313.9 308.7
771.0 2369 13.6 -16.4 11 1.38 11 2 308.9 313.6 309.1
764.7 2438 13.0 -9.5 20 2.45 355 1 308.9 316.9 309.4
761.0 2479 12.6 -5.4 28 3.38 357 1 308.9 319.8 309.6
749.0 2612 11.2 3.2 58 6.47 4 2 308.8 329.0 310.0
737.3 2743 9.8 3.8 66 6.85 10 3 308.7 330.0 310.0
737.0 2746 9.8 3.8 66 6.87 8 3 308.7 330.1 310.0
731.0 2814 9.6 1.6 57 5.91 332 5 309.2 327.8 310.3
719.0 2952 8.4 5.4 81 7.88 257 8 309.4 333.8 310.9
710.7 3048 7.7 5.2 84 7.88 205 11 309.6 334.1 311.1
700.0 3173 6.8 5.0 88 7.87 205 13 310.0 334.4 311.4
687.0 3327 5.8 4.8 93 7.91 235 11 310.5 335.2 312.0
684.9 3353 5.7 4.0 89 7.50 240 11 310.7 334.1 312.1
677.0 3448 5.4 1.1 74 6.16 245 13 311.4 330.8 312.6
667.0 3569 5.6 -10.4 31 2.61 251 15 312.9 321.6 313.4
660.0 3656 5.0 -6.0 45 3.72 255 16 313.2 325.3 313.9
659.8 3658 5.0 -6.4 44 3.61 255 16 313.2 325.0 313.9
656.0 3705 5.2 -13.8 24 2.02 254 16 314.0 320.8 314.4
652.0 3755 5.0 -12.0 28 2.35 253 17 314.3 322.2 314.8
647.0 3818 5.2 -29.8 6 0.50 252 17 315.2 317.1 315.3
625.0 4100 4.8 -36.2 3 0.28 248 19 317.9 319.0 317.9
618.0 4192 4.0 -14.0 26 2.11 246 20 318.0 325.2 318.4
612.3 4267 3.7 -17.6 19 1.58 245 20 318.5 324.0 318.8
604.0 4378 3.2 -22.8 13 1.02 250 20 319.2 322.8 319.4
596.0 4486 2.2 -13.8 30 2.22 254 19 319.2 326.8 319.7
590.0 4567 1.4 -5.6 60 4.29 257 19 319.2 333.4 320.1
572.0 4816 -0.5 -8.5 55 3.54 267 18 319.8 331.7 320.5
568.0 4872 -0.7 -16.7 29 1.83 270 18 320.2 326.6 320.6
567.7 4877 -0.7 -17.7 26 1.68 270 18 320.3 326.2 320.6
561.0 4972 -0.7 -38.7 4 0.24 259 17 321.4 322.3 321.4
554.0 5072 -1.5 -28.5 11 0.66 248 16 321.6 324.0 321.7
546.4 5182 -2.2 -28.5 11 0.67 235 15 322.1 324.6 322.2
531.0 5408 -3.5 -28.5 12 0.69 241 14 323.1 325.7 323.2
527.0 5468 -4.1 -23.1 21 1.14 242 14 323.1 327.2 323.3
505.7 5791 -6.9 -22.8 27 1.22 250 13 323.5 327.9 323.7
500.0 5880 -7.7 -22.7 29 1.24 250 14 323.6 328.1 323.8
Explanation / Answer
1. Please describe what barometers are and the two types currently in use within the meteorological community?
Barometer is an instrument which is used to measure the atmospheric pressure. Barometer is especially used in weather forecasting and determining the altitude. The atmospheric pressure changes as the height changes from sea level that is why we can use barometer to measure altitude.
Mercury and aneroid these are two main types of barometer used within meteorological community. Mercury barometer balances the atmospheric pressure with mercury column and aneroid barometer measures the atmospheric pressure in mechanical movement. Mercury barometer is used to calibrate the aneroid barometer.
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