AUGUST, 1927 368 MONTHLY WEATHER REVIEW
______ 1.13 1:?8
1.13 1.28
1.18
Scientific monthly. New York. v. 25. September, 1927.
Scottish geographical magazine. Edinburgh. ti. 43. J u l y 15, 1.927- The new outlook in meteorology aid its geo-
Sweden. Statens meteorologisk-h ydrogrujislia anstult. dieddclandcn.
Angstram, Anders. Recording nocturnal radiation. 15 p.
Galbas, P. A. Die Gesellschaft zur Forderurig der Klininfor- schung iin Nordseegebiet. p. l S .2 1 . (Jan.) Groissmayr, Fritz. NorcllieniisphSirisclie Geliiete winterliclier
Temperaturgegensatze. 11. p. 21-24. (Jail.) Moese, O., & Schinze, G. Die Sclileifzone vom 15. uiid 16.
Oktober 1926. p. 3-7. (Jan.) Treibich, A. Welche hIittel sind geeignet, die Treffsicherheit der Wetterprognosen und die Wertschiitzuiig des \Tetter-
dieiistes iu der &€ entlichkeit zu heben. p. 17-19. (Jail.)
Holmes, Bert E. Vocal thermometers. p. 261-264.
Stevens, A.
.. graphical bearings. p. 215-236.
Sto,cPholni. Band 3. No. 19. 1997.
Wetter. Berlin. 44. Jahrgang. 1997.
1.26 1.02 0.83 ______ ______ 15.65 1.32 .---.-.-.-....-.-------- 18.58 1.32 ______ _____. ______ ______ 15.11 1.39 ______ ______ ______ ______ 12.24 1.45 ______ ._____ ______ ______ 7.87 1.47 _____________
~
__________ 8.81
Wetter. Berlin. 44. Jahrgang. 1927-Continued. Voigts, Heinrich. RIeteorolngie riiicl Wetterliunde in den physikalischeii Lehrbuchern fur hohere Schulen. p. 7-14.
(Jan.) Federov, E. E. Das Iclima als Wettergesamtheit. p. 145-
157. (Juli.) Fischer, Joh. Die Uiiwetterliatastrophe am 19. Juli in Pfohren. p. 163-165. (Juli.)
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see. p. 161-162. (Juli.) Die taglichen und jahreszeitlichen Veraiiderungeii in der Gestalt und Btruktur uiiberer Lufthiille. p. 165-167. (Juli.)
Wigand, A. Luftelektrisch-physiologische Reaktionen des
IVettersinnes. p. 157-158. [Juli.)
Zeitschrifi fur G'letschokunde. Leipzig. Band 14. H . 3. Juli 1927. Die Ergebnisse der polleiianalytischen Forschung
in Bezug nuf die Geschichte der Vegetation uiid des Klirnas
vou Europa. p. 161-190.
Gams, H.
1.201 1.461 1.12
SOLAR OBSERVATIONS
0.95 0.61 ______I 7.87
SOLAR AND SKY RADIATION MEASUREMENTS DURING AUGUST, 1927
By IRVINQ F. HAND, Solar Radiation Investigations
For a description of instruments and exposures and an account of the method of obtaining and reducing t,he
measurements the reader is referred to the REVIEW for
January, 1924, 52 :42, January, 1935, 53 :29, and July,
1925, 53:315. From Table 1 it is seen that solar radiation intensities averaged above normal a t both Madison and Lincoln,
but below nornial a t Washington. Table 2 shows an excess in the total radiation received
on a horizontal surface from the sun and sky a t Madison
and a decided deficiency a t Washington and Lincoln. August w-eather at Washington was marked for its hazi-
ness in general. Skylight polarization measurements made a t Washing-
ton &%hree days give a mean of 44 per cent, withLa
maximum of 47 per cent on the 5th. At Madison rneas- urements made on nine days give a mean of 64 per cent,
with a niaxinium of 73 on the 9th. The Madison values
are close to noimal values, but the values for Washingt,on
are much below average August determinations.
TABLE 1.-Solar radiation intensities during Aicgusi, 1927
[Gram-calories per minute per square centimeter of normal surface]
WASHINGTON, D. C.
Sun's zenitli distance
I mm.
Extrapolated.
i 8 .7 O 1 75.7' I70.7' I60.0' 1 0.0' 180.0" I70.io 1 75.7' I 76.7' Noon
Local
~
me:m so1:ir A. M. P. hl. time
_~~.~_______~
Air mass
__
5.0 4.0 3.0 2.0 *1.0 2.0 3.0 1 4.0 5.0 e.
eal. eal. cal. eal. caI. cal. cal. cal. cal. mni. 0.30 0.39 0.52 0.74 1.05 _-________________._____ 13.61 --___ ___-_- ----- - -- ---- 1.39 1.10 --_-__ ___--- _-__._ Q.41 _____ ______ _____- 0.73 ______ ----__ __.___ ______ ______ 12.13
____________-_-- --- ____ 1.41 1.14 0.91 ._____._____ d.87 _____ ______ 0.78 0.91 --__-- -- ---- --____ ___--- _-____ 12.68
___________ 0.44 0.70 :0.30) (0.39) 0.58 0.77 -0.34 -0.23 -0. 16 -0. 15
TABLE l.--Solu~ rudialion intensiiies diiring Aiigust, 1997-Con.
MADISON, WIS.
Sun's 2enit.h distance
I
Air mas3 55th
time 1 i A. &I. P. M.
a.
~
5.0 I 4.0 1 3.0 I 2.0
Local mean solar time
-
e.
LINCOLN, NEER.
25 _.._.____ 10 59 ._____ 1 ____._ 1 _____. 1
______I
1 321 1.0.51 0 671 0.69; ______
~
10.59 1Ie.ins ...._....______ l(O76l 0.82 0.97 1.20 1.37 1 0 6 0.88(0.75)'____ ________ Departures ___.. ..____ '+O. 10 f0.05 +O 07 +O. I2 +O. 07 -0.01 -0.01 *O. 00 ______
~
_____ I l l l l
TABLE 3.--Solur aud sky radiation received on a horizontal surface
[Gram-dories per square centimeter of horlzontal surface]
I 1 1 Average daily departure from normal Arerage daily radiation
Week be- ginning Wash- Madi- Twin Wash-
I :$; 1 Fzg 1 Falls
11
ington
i
ington 1 son 1
I I I I I I Deficiency since first of year on Gept. 2 ______________
MRdi- son
cal.
+59 4-50
- 63
4-89
+19
-f 346
___
-
Lin- coln
cd.
-6.5 -I -91 -36 -4a
-7,133