124 ANNUAL REPORT SMITHSONIAN INSTITUTION, 1944 
1920 21 22 23 2 2 26 27 #2 29 #19399 3! 32 33 34 3% 36 ST 38 _ 39 1940 
i | Bal 
| A VY Nita mal a 
S It 8 1) 8 EO ae aL 
& suo AE BT AT A ea a a WD 
see Ne A i N° 7 lH is ye ees 
Ils MEOPI TTA a WET EM UR APs Ee en 
~ COT RIE Th A ha a Re ee 
e CWT TE TTA IA He TY | 1d il 
a ee ft +t HA} PE a} tt tf} 
8 A 1 A A aap (PND GF WT HTS SE 
Ens ott) (SpE le ia iy isu (no EN, ad 
SEE aN |, ane MA I, WS WA RY PETE TG AT) 
ROR DP eR A DONT FTN HR P,P I 
ee 2 eee 
CEG) RD RR RAG CO I PE ERI IR PLP CG IR OT 
oe APR A PR CPN ASP FAS LO Ara ea Foe Og Fake PY Ee 
RPA PAW: eR bere Has Wa fan a ae PN ec al We ek eo 
AG SURES SA A Ms De EU ST 
sigst ea agi a pe at WM eC ee 
: G70” Na Pn RT Pea fa FI ee 
Figure 2.—March of monthly values of solar constant of radiation, 1920 to 1939. 
A, observed; B, synthesis of 14 regular periodicities, all approximately aliquot 
parts of 273 months. 
and in opposite hemispheres, agree in the 5-year interval from Jan. 
uary 1932 to December 1936. All days simultaneously observed, good 
and bad alike, are included. 
These results we arranged in groups in order of their divergence, as 
shown in the table. The unit is 1/1,000 calorie. Most of the values 
concern Montezuma and Table Mountain, but there are a great many 
in which Mount St. Katherine figures with one of the other stations. 
TaBLe 1—Numbers of daily differences between stations having certain 
amplitudes 
Amplitudes, A---_-----~ 22-28 20-22 18-20 16-18 15 14 18 12 i111 10 
Number of days__-__--_ alr 12 10 35 13) 2th yi 22n e022 iat 
Product lines 1 x 2____ 391 252 190 595 195 210 286 240 242 270 
Amplitudes, A--------- 9 8 (i 6 5 cs s 2 1 0 
Number of days.._.---~-~ 34 30 35 43 51 bo OO Ot) ULSt oe 
Product lines 1 x 2__~_ 306 240 245 258 255 220 165 74 48 0 
Total’ days saute Liss cee ee ee Se Se ee ee eee 616 
Total of products. 3-2 ee eee eee 4, 682 
Weighted, 'mesn))\ to." 2 Boek ee Se ae oe 7.6 
