302 Table 73 



SATURATION MIXING RATIO OVER WATER 



ra= 0.62197/,,, xl0V/kg . 

 P — /«?« 

 r« = saturation mixing ratio over water, 



ev, = saturation vapor pressure over water in the pure phase, mb., 

 /„ = correction factor for the departure of the mixture of air and water vapor 



from ideal gas laws (see Table 89), 

 P = total pressure, mb. 



(Note.— 1 g./kg. = lO' 3 g./g.) 



Pressure — millibars 



T Tu P re ra " 1050 1000 950 900 850 800 750 700 600 500 



°C. g./kg. g./kg. g./kg. g./kg. g./kg. g./kg. g./kg. g./kg. g./kg. g./kg. 



-50 0.03789 0.03977 0.04185 0.04416 0.04674 0.04966 0.05295 0.05672 0.06613 0.07931 



-49 .04246 .04457 .04691 .04950 .05239 .05566 .05935 .06357 .07412 .08890 



-48 .04753 .04989 .05250 .05540 .05865 .06230 .06643 .07116 .08297 .09951 



-47 .05315 .05579 .05871 .06196 .06558 .06967 .07429 .07957 .09278 .1113 



-46 .05936 .06231 .06557 .06920 .07325 .07781 .08297 .08887 .1036 .1243 



-45 0.06621 0.06950 0.07314 0.07718 0.08169 0.08678 0.09255 0.09912 0.1156 0.1386 



-44 .07383 .07750 .08157 .08607 .09111 .09679 .1032 .1106 .1289 .1546 



-43 .08217 .08625 .09078 .09579 .1014 .1077 .1149 .1230 .1435 .1721 



-42 .09141 .09595 .1010 .1066 .1128 .1198 .1278 .1369 .1596 .1914 



-41 .1015 .1066 .1122 .1184 .1253 .1331 .1419 .1520 .1773 .2126 



-40 0.1127 0.1183 0.1245 .01314 0.1390 0.1477 0.1575 0.1687 0.1967 0.2360 



-39 .1250 .1312 .1380 .1457 .1542 .1638 .1747 .1871 .2181 .2617 



-38 .1384 .1453 .1529 .1614 .1708 .1814 .1935 .2073 .2417 .2899 



-37 .1532 .1608 .1692 .1786 .1890 .2008 .2141 .2294 .2675 .3208 



-36 .1693 .1777 .1871 .1974 .2090 .2220 .2367 .2536 .2957 .3547 



-35 0.1870 0.1963 0.2066 0.2180 0.2308 0.2452 0.2614 0.2801 0.3266 0.3918 



-34 .2063 .2166 .2279 .2405 .2546 .2705 .2884 .3090 .3603 .4322 



-33 .2275 .2388 .2513 .2652 .2808 .2982 .3180 .3407 .3973 .4765 



-32 .2505 .2630 .2768 .2921 .3092 .3285 .3503 .3752 .4376 .5249 



-31 .2757 .2894 .3046 .3215 .3403 .3615 .3855 .4130 .4816 .5777 



-30 0.3031 0.3182 0.3349 0.3534 0.3742 0.3975 0.4238 0.4540 0.5295 0.6352 



-29 .3330 .3495 .3679 .3883 .4110 .4366 .4656 .4988 .5817 .6978 



-28 .3655 .3837 .4037 .4261 .4511 .4792 .5110 .5475 .6385 .7659 



-27 .4008 .4207 .4428 .4673 .4947 .5255 .5604 .6004 .7002 .8400 



-26 .4392 .4610 .4852 .5121 .5421 .5759 .6141 .6579 .7673 .9206 



-25 0.4808 0.5048 0.5312 0.5607 0.5936 0.6305 0.6724 0.7204 0.8402 1.00S 



-24 .5260 .5522 .5811 .6133 .6493 .6897 .7356 .7881 .9191 1.103 



-23 .5750 .6037 .6353 .6705 .7098 .7540 .8042 .8615 1.005 1.206 



-22 .6280 .6593 .6939 .7323 .7753 .8236 .8783 .9409 1.097 1.317 



-21 .6854 .7195 .7572 .7992 .8461 .8988 .9586 1.027 1.198 1.437 



-20 0.7474 0.7847 0.8258 0.8716 0.9227 0.9802 1.045 1.120 1.306 1.568 



-19 .8145 .8551 .8999 .9498 1.006 1.068 1.139 1.221 1.424 1.708 



-18 .8868 .9310 .9799 1.034 1.095 1.163 1.241 1.329 1.550 1.861 



-17 .9650 1.013 1.066 1.125 1.191 1.266 1.350 1.446 1.687 2.025 



-16 1.049 1.102 1.159 1.224 1.295 1.376 1.468 1.573 1.835 2.202 



-15 1.140 1.197 J.260 1.330 1.408 1.495 1.595 1.709 1.994 2.393 



-14 1.238 1.300 1.368 1.444 1.529 1.624 1.732 1.856 2.165 2.599 



-13 1.343 1.410 1.484 1.566 1.658 1.762 1.879 2.014 2.349 2.820 



-12 1.456 1.529 1.609 1.698 1.798 1.910 2.038 2.183 2.548 3.059 



-11 1.578 1.656 1.744 1.840 1.949 2.070 2.208 2.366 2.761 3.315 



(continued) 



SMITHSONIAN METEOROLOGICAL TABLES 



