Carnegie Institution of Washington Publication Volume 204

Carnegie Institution of Washington Publication Volume 204

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1915 edition. Excerpt: ...rate is attained with hour 18 and is maintained till hour 7. The ratio of maximum to average night rate (0.53) is 14.1 in this February series. The March graph shows the maximum (7.00) with hour 12, an hour earlier than the occurrence of the evaporation maximum, thus suggesting some incipient drying in the late forenoon hours. The low night period extends from hour 17 to hour 6 of the next day, its average value being 0.37. The ratio of the maximum to this average is 18.9. SOIL _, _-__I_ TRANSPIRING POWER (T-e-E). The February graph of this feature shows its maximum hour 14, the same houras occurs the maxim The period of I w ni h (2 98) w'th umof absolute transpiration o g t values extends from hour 17 to hour 6 't, s aver 4 5 6 7 5 9 Fro. 3.--Graphs for Polar age value bein aomlum. g 0.42 and the ratio of the maximum to thi The March graph exhibits its maximum (2. _ same hour as occurs th _ M. _ ur 12, also at the for absolute transpiration. The riod extends from hour 16 to hour 6, with an average valueof 0.27. The maximum is 8.1times this average. This March graph bears evidence of some incipient drying of the leaves about noon, thus agreeing with the corresponding graph of absolute transpiration; ENVIRONMENTAL ARIDITY (I XE). The February graph here exhibits its maximum (8.94) with hour 13, the same hour as shows the maximum in evaporation. The February period of low night values extends from hour 23 to hour 7 of the day following, having an average value of 0.98. The ratio of the maximum to this average is 8.6. The March graph shows a maximum (17.92) an hour later than the first, its night period reaching from hour 23 to hour 6. The night average is here 0.88 and the maximum is 20.4 times this average. The more

Product details

  • Paperback
  • 189 x 246 x 2mm | 82g
  • United States
  • English
  • black & white illustrations
  • 1236993039
  • 9781236993038