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GENERAL INFORMATION, CONVERSION TABLES, AND MATHEMATICS 2.79<br />

TABLE 2.12<br />

Reduction of the Barometer <strong>to</strong> Sea Level—Metric Units (Continued)<br />

Altitude<br />

in<br />

Meters<br />

Mean Temperature of Air Column in Centigrade Degrees<br />

16 8 4 0 6 10 14 18 20 22 26<br />

700 80.6 78.1 76.9 75.7 74.0 72.9 71.7 70.7 70.1 69.6 68.6<br />

750 86.3 83.7 82.4 81.1 79.3 78.1 76.9 75.7 75.1 74.6 73.5<br />

800 92.1 89.2 87.9 86.5 84.6 83.3 82.0 80.8 80.1 79.6 78.4<br />

850 97.8 94.8 93.4 92.0 89.8 88.5 87.1 85.8 85.2 84.5 83.3<br />

900 103.6 100.4 98.9 97.4 95.1 93.7 92.2 90.8 90.2 89.5 88.2<br />

950 109.3 106.0 104.4 102.8 100.4 98.9 97.4 95.9 95.2 94.5 93.1<br />

1000 115.1 111.5 109.8 108.2 105.7 104.1 102.5 100.9 100.2 99.4 98.0<br />

1050 120.8 117.1 115.3 113.6 111.0 109.3 107.6 106.0 105.2 104.4 102.9<br />

1100 126.6 122.7 120.8 119.0 116.3 114.5 112.7 111.0 110.2 109.4 107.8<br />

1150 132.3 128.3 126.3 124.4 121.6 119.7 117.9 116.1 115.2 114.4 112.7<br />

1200 138.1 133.8 131.8 129.8 126.8 124.9 123.0 121.1 120.2 119.3 117.6<br />

1250 143.8 139.4 137.3 135.2 132.1 130.1 128.1 126.2 125.2 124.3 122.5<br />

1300 149.6 145.0 142.8 140.6 137.4 135.3 133.2 131.2 130.2 129.3 127.4<br />

1350 155.3 150.6 148.3 146.0 142.7 140.5 138.4 136.3 135.2 134.2 132.3<br />

1400 161.1 156.2 153.8 151.4 148.0 145.7 143.5 141.3 140.2 139.2 137.2<br />

1450 166.8 161.7 159.3 156.8 153.3 150.9 148.6 146.4 145.3 144.2 142.1<br />

1500 172.6 167.3 164.8 162.3 158.5 156.1 153.7 151.4 150.3 149.1 147.0<br />

1550 178.3 172.9 170.2 167.7 163.8 161.3 158.8 156.4 155.3 154.1 151.8<br />

1600 184.1 178.5 175.7 173.1 169.1 166.5 164.0 161.5 160.3 159.1 156.7<br />

1650 189.8 184.0 181.2 178.5 174.4 171.7 169.1 166.5 165.3 164.1 161.6<br />

1700 195.6 189.6 186.7 183.9 179.7 176.9 174.2 171.6 170.3 169.0 166.5<br />

1750 201.4 195.2 192.2 189.3 185.0 182.1 179.3 176.6 175.3 174.0 171.4<br />

1800 207.1 200.8 197.7 194.7 190.2 187.3 184.5 181.7 180.3 179.0 176.3<br />

1850 212.9 206.3 203.2 200.1 195.5 192.5 189.6 186.7 185.3 183.9 181.2<br />

1900 218.6 211.9 208.7 205.5 200.8 197.7 194.7 191.8 190.3 188.9 186.1<br />

1950 224.4 217.5 214.2 210.9 206.1 202.9 199.8 196.8 195.3 193.9 191.0<br />

2000 230.1 223.0 219.7 216.3 211.4 208.1 204.9 201.9 200.3 198.8 195.0<br />

2050 235.9 228.6 225.1 221.7 216.7 213.3 210.1 206.9 205.3 203.8 200.8<br />

2100 241.6 234.2 230.6 227.1 221.9 218.5 215.2 211.9 210.4 208.8 205.7<br />

2150 247.4 239.8 236.1 232.5 227.2 223.7 220.3 217.0 215.4 213.8 210.6<br />

2200 253.1 245.4 241.6 237.9 232.5 228.9 225.4 222.0 220.4 218.7 215.5<br />

2250 258.9 250.9 247.1 243.4 237.8 234.1 230.6 227.1 225.4 223.7 220.4<br />

2300 264.6 256.5 252.6 248.8 243.1 239.3 235.7 232.1 230.4 228.7 225.3<br />

2350 270.4 262.1 258.1 254.2 248.3 244.5 240.8 237.2 235.4 233.6 230.2<br />

2400 276.1 267.7 263.6 259.6 253.6 249.7 245.9 242.2 240.4 238.6 235.1<br />

2450 281.9 273.2 269.1 265.0 258.9 254.9 251.0 247.3 245.4 243.6 240.0<br />

2500 287.6 278.8 274.5 270.4 264.2 260.1 256.2 252.3 250.4 248.5 244.9<br />

2550 293.4 284.4 280.0 275.8 269.5 265.3 261.3 257.3 255.4 253.5 249.8<br />

2600 299.1 290.0 285.5 281.2 274.8 270.5 266.4 262.4 260.4 258.5 254.7<br />

2650 304.9 295.5 291.0 286.6 280.0 275.7 271.5 267.4 265.4 263.4 259.6<br />

2700 310.6 301.1 296.5 292.0 285.3 280.9 276.6 272.5 270.4 268.4 264.5<br />

2750 316.4 306.7 302.0 297.4 290.6 286.1 281.8 277.5 275.4 273.4 269.4<br />

2800 322.1 312.3 307.5 302.8 295.9 291.3 286.9 282.6 280.4 278.3 274.3<br />

2850 327.9 317.8 313.0 308.2 301.2 296.5 292.0 287.6 285.4 283.3 279.2<br />

2900 333.6 323.4 318.4 313.6 306.4 301.7 297.1 292.6 290.4 288.3 284.1<br />

2950 339.4 329.0 323.9 319.0 311.7 306.9 302.2 297.7 295.5 293.3 289.0<br />

3000 345.1 334.5 329.4 324.4 317.0 312.1 307.4 302.7 300.5 298.2 293.8<br />

* From Smithsonian Meteorological Tables, 3d ed., 1907.

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