Vilas County news. [volume] (Eagle River, Vilas County, Wis.) 1896-1927, 1925-07-29
temperatures Cast
Week in Advance
Study of Sun Makes Fore
cast Possible.

Washington. heat of the sun
changes Ia the eartts temperature,
but TO the variations ii weather condi-
aOns in general. Smithsonian institu
ton scientists Lave decided after ex
periments covering a long period. To
Increase the depcndability of their OBJ
servations. the experts hope to estab
fish within few years stations in
various parts Of the world where data
can be gathered.
Through series of papers dealing
with experiments of its astrophysicai
observatory, the institution says IRE
searches give clear proof of con-
nectiOn between solar variations and
weather changes, but show that the
relation is a complex one"
Whether recent abnormal aspects OF
worldwide weather have been caused
by solar conditions cannot be deter
mined, because extended records OF
the past history of solar radiation are
lacking.
Basis for Predictions.
DR., c. G. Abbot, assistant secretary
of the institution and the director of
the astrOphysical observatory. says
that not only does the heat received
by the earth from the sun appear
variable, but that the changes can be
predicted nearly q week in advance by
looking at the sun through telescope.
Ii. II. Clayton, who for several years
was official forecaster of Argentina
and recently has been collaborating
with Doctor Abbot through study of the
sun, has predicted, with what the in
stitution asserts is very fair accuracy
the actual daily temperatures of New
York city nearly a week in advance
for more than a year.
For several years the work has
been conducted from two observa
tories, one at Mount Harqua Hala
Arlz., and the other near Calama, in
the nitrate desert of Chile. Both are
In high, arid locations. To increase
the accuracy of the observations i'm
prOvements are being planned for the
Chile station, while the Arizona OBJ
servatory is to be moved to a higher
location On Table mountain, California,
near Los Angeles.
Stations in the Eastern hemisphere
are needed and DIR. Abbot will go to
Asia this fall and with fdnds supplied
by the National Geographic society
seek a desirable location for an OBJ
servstory, with Beluchistan as his first
objective. Later he will go to south
west Africa, in search of a probable
site for an observatory there.
Effect on Barometer.
Since 1922 researches have been
conducted under the most unusual
solar conditions known to modern
science through a marked long-con
tillued low period in the amount of
heat thrown out by the sun. Whereas
the normal has been established as
1.94 calories per square centimeter per
minute, this value known as the solar
constant, since 1922 has been as low
as 1.90 or 2 per cent below normal. At
present it is 1913 and showing a ten
deucy to rise. The phenomenal drop
was first announced by Doctor Abbot
In April, 1923, and he then pronounced
that departures of some sort from
normal weather conditions might be
expected.
Mr.. Clayton says that changes in
the suns heat almost Immediately af-
feet the barometer and the thermome-
ter In western Canada and western
United States, perhaps as a reaction
from the tropical atmosphere, travel
Ing with the velocity of sound. The
atmospheric waves thus set up drift
slowly south and east, and three days