Properties atmosphere at high altitude

Thermodynamics Related Resources

Properties of the atmosphere at high altitude

Altitude,
m
Temperature,
°C
Pressure,
kPa
Gravity
g
, m/s2
Speed of
Sound,
m/s
Density,
kg/m3
Viscosity
µ, kg/m · s
Thermal
Conductivity,
W/m · K
0
15.00
101.33
9.807
340.3
1.225
1.789 10-5
0.0253
200
13.70
98.95
9.806
339.5
1.202
1.783 10-5
0.0252
400
12.40
96.61
9.805
338.8
1.179
1.777 10-5
0.0252
600
11.10
94.32
9.805
338.0
1.156
1.771 10-5
0.0251
800
9.80
92.08
9.804
337.2
1.134
1.764 10-5
0.0250
1000
8.50
89.88
9.804
336.4
1.112
1.758 10-5
0.0249
1200
7.20
87.72
9.803
335.7
1.090
1.752 10-5
0.0248
1400
5.90
85.60
9.802
334.9
1.069
1.745 10-5
0.0247
1600
4.60
83.53
9.802
334.1
1.048
1.739 10-5
0.0245
1800
3.30
81.49
9.801
333.3
1.027
1.732 10-5
0.0244
2000
2.00
79.50
9.800
332.5
1.007
1.726 10-5
0.0243
2200
0.70
77.55
9.800
331.7
0.987
1.720 10-5
0.0242
2400
-0.59
75.63
9.799
331.0
0.967
1.713 10-5
0.0241
2600
-1.89
73.76
9.799
330.2
0.947
1.707 10-5
0.0240
2800
--3.19
71.92
9.798
329.4
0.928
1.700 10-5
0.0239
3000
4.49
70.12
9.797
328.6
0.909
1.694 10-5
0.0238
3200
-5.79
68.36
9.797
327.8
0.891
1.687 10-5
0.0237
3400
-7.09
66.63
9.796
327.0
0.872
1.681 10-5
0.0236
3600
-8.39
64.94
9.796
326.2
0.854
1.674 10-5
0.0235
3800
-9.69
63.28
9.795
325.4
0.837
1.668 10-5
0.0234
4000
-10.98
61.66
9.794
324.6
0.819
1.661 10-5
0.0233
4200
-12.3
60.07
9.794
323.8
0.802
1.655 10-5
0.0232
4400
-13.6
58.52
9.793
323.0
0.785
1.648 10-5
0.0231
4600
-14.9
57.00
9.793
322.2
0.769
1.642 10-5
0.0230
4800
-16.2
55.51
9.792
321.4
0.752
1.635 10-5
0.0229
5000
-17.5
54.05
9.791
320.5
0.736
1.628 10-5
0.0228
5200
-18.8
52.62
9.791
319.7
0.721
1.622 10-5
0.0227
5400
-20.1
51.23
9.790
318.9
0.705
1.615 10-5
0.0226
5600
-21.4
49.86
9.789
318.1
0.690
1.608 10-5
0.0224
5800
-22.7
48.52
9.785
317.3
0.675
1.602 10-5
0.0223
6000
-24.0
47.22
9.788
316.5
0.660
1.595 10-5
0.0222
6200
-25.3
45.94
9.788
315.6
0.646
1.588 10-5
0.0221
6400
-26.6
44.69
9.787
314.8
0.631
1.582 10-5
0.0220
6600
-27.9
43.47
9.786
314.0
0.617
1.575 10-5
0.0219
6800
-29.2
42.27
9.785
313.1
0.604
1.568 10-5
0.0218
7000
-30.5
41.11
9.785
312.3
0.590
1.561 10-5
0.0217
8000
-36.9
35.65
9.782
308.1
0.526
1.527 10-5
0.0212
9000
-43.4
30.80
9.779
303.8
0.467
1.493 10-5
0.0206
10,000
-49.9
26.50
9.776
299.5
0.414
1.458 10-5
0.0201
12,000
-56.5
19.40
9.770
295.1
0.312
1.422 10-5
0.0195
14,000
-56.5
14.17
9.764
295.1
0.228
1.422 10-5
0.0195
16,000
-56.5
10.53
9.758
295.1
0.166
1.422 10-5
0.0195
18,000
-56.5
7.57
9.751
295.1
0.122
1.422 10-5
0.0195

Source: U.S. Standard Atmosphere Supplements, U.S. Government Printing Office, 1966. Based on year-round mean conditions at 45° latitude and varies with the time of the year and the weather patterns. The conditions at sea level (z 0) are taken to be P 101.325 kPa, T 15°C, r 1.2250 kg/m3, g 9.80665 m2/s.

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