HORIZO-JTAL Airo VERTICAL HEaT EXCHANGE UKDER PARTLY CLOUDY SKIES 

 (CLOUD CODE 3-5) 



Calculation of horizontal and vertical components of heat exchange 

 under partly cloudy skies is similar to that described above. The 

 results are shown in tables 5 and 6. The radiational budget indicates 

 that heat is available for absorption between llOOZ and 2000Z. In 

 table 6 the horizontal heat exchange values for the layer to 20 feet 

 are larger than the vertical heat exchange totals. The horizontal 



TABLE 5 



KET AM) ABSORPTIVE HEAT CHANGES FOR PARTLY CLOUDY SKIES ( Cloud Code 3- 



(gin cal/cm2/hr) 



5) 



Hour 



11-12 

 12-13 



14-15 



15-16 



16-1? 



17-18 



18-19 



19-20 



TOTALS 

 for 



Net 



Radiation 



Budget 



12. U2 



29.61 



UO.69 



39.71 



1*3.64 



38.96 



34.85 



20.54 



1.96 



0'-20' 

 45.21 

 45.21 

 40,36 

 25.83 

 6.46 

 ■14.53 



Net Measured Heat Cbange 

 20'.4o' 4o'-6o' 6o'-8o' 8o'-10O' 

 38.75 32.29 27.45 27.45 



38.75 

 30.68 

 17.76 

 -1.61 

 -17.76 



-27.45 -29.06 

 -35.52 -33.91 

 -38.75 -32.29 



37.29 



20.99 



9.69 



-6.07 



-20.99 



-30.68 



-32.29 



-27.45 



25.83 



12.92 



3.23 



20.99 

 9.69 

 -3.23 



-12.92 -17.76 



-22.60 -24.22 



-29.06 -25.83 



-25.83 -20.99 



-20.99 -11.30 



Measured Absorptive Heat Change 



0'-20' 20'-40' 40'-60' 60'-80' 8o'-100' 



3.23 3.23 3.23 1.61 -1.61 



3.23 3-23 3-23 3.23 1.61 



.4.84 4.84 4.84 3.23 o.OO 



3.23 4.84 3.23 3.23 -3.23 



3.23 -4.84 1.61 3.23 1.61 



1.61 1.61 1.61 0.00 1.61 



1.61 0.00 1.61 -3.23 0.00 



-3.23 1.61 -3.23 -3.23 -1.61 



-3.23 -3.23 -1.61 -4.84 -4.84 



TOTALS 



9.69 



14.53 



17.75 



11.30 



4.84 



6.44 



-0.01 



-9.69 



-17.75 



II-20Z 262.38 46.82 11.31 -19.22 -41.97 -45.20 



14.52 11.29 14.52 



3.23 



TABLE 6 - 



CALCULATION OF HORIZONTAL AND VERTICAL HEAT EXCHANGE FOR 

 ■(Cloud Code 3-5) (gm cal/cm2/hr) 



Hour 

 (Z) 



Net After Removal of Absorption 



0'-20' 



11-12 41.98 



12-13 41.98 



13-14 35.52 



14-15 22.60 



15-16 3.23 



16-17 -16. l4 



17-18 -29.06 



18-19 -32.29 



19-20 -35.52 



20'-40' 

 35.52 

 35-52 

 25.84 

 12.92 

 3.23 

 -19.37 

 -29.06 

 -35-52 



4o'-6o' 



29.06 



34.06 



16.15 



6.46 



60 '-80' 



25.84 



22.60 



9.69 



0.00 



-9.68 -16.15 



-22.60 -22.60 



-32.29 -25.83 



-29.06 -22.60 



-35.52 -25.84 -16.15 



80' -100' 



29-06 



19.30 



9.69 



0.00 



-19.37 

 -25.83 

 -25.83 

 -22.60 

 -6.46 



Horizontal Plus Evaporative and 

 Heat Exchange 



PARTLY CLOUDY SKIES 



Sensible 



0'-20' 20'-40' 

 31.71 34.44 



17.49 

 1.87 

 -10.24 

 -32.86 

 -48.36 

 -57-88 

 -49.28 

 -37.14 



32.95 

 22.31 

 9.47 

 -0.56 

 -22.75 



-32.08 

 -37-30 



4o'-6o' 

 26.45 

 32.61 

 14. 16 

 4.51 

 -U.82 

 -24.51 

 -34.00 

 -30.07 



-35.69 -25.94 



60 '-So' 

 25.65 

 22.15 

 9.07 

 -0.60 

 -16.81 

 -23.19 

 -26.36 

 -22.91 

 -16.18 



80' -100' 



28.94 



19.08 



9.28 



-0.4o 



-19.81 

 -26.22 

 -26.18 

 -22.81 

 -6.48 



29.37 

 26.70 

 13.70 

 3.24 

 -12.25 

 -24.17 

 -29.66 

 -28.27 

 -21.07 



2.34 

 -9.21 

 -11.83 

 -13.48 

 -20.61 

 -24.19 

 -28.22 

 -21.01 

 -16.07 



-42.41 -142.28 



11 



