Researches on the Nocturnal Badiation by the Method of Automatic Necording

[摘要] By setting the thermo-couple just above the earth's surface, letting the cylinders of ito passive junctions burried into the ground, we had 84 sheets of automatic graph of nocturnal radiation from late in April to Dec. in 1942.On the same sheet we gained the automatic graph representing the temperature difference between the ground and 5 meter height (both are in the free atmospnere). The correlation's factor betweem both. curves has in general very high positive value, and is small in warm reason and large in cold season. i. e.The nocturnal .radiation R (outgoing-incoming) amounts 0.01-0.15 Here, outgoing radiation is 6T4 (T: earth's surface temperature). Let e the water-vapour tension (m.m) and Method of least squares. Seeking the relation between R/6T4 and √e by plotting on a graph, we have R/6T4=0.670-0.110√e Accordingly, the incoming radiation G=6T4(0.328+0.110√e This represents very good identity with that gained formerly by others.

[学科分类] 大气科学