L'assorbimento della radiazione solare su scala planetaria
Main Article Content
Abstract
In the present paper the AA. search an eventual phenomenon
with the universal diurnal variation, which may influence the
natural terrestrial phenomena. Considering that the first cause of the
diurnal variations is the solar radiation arriving 011 the Earth, such a phenomenon
may be founded in the diurnal rotation of the Earth, therefore
1 lie regions illuminated by the sun are different according to the universal
time. Since the regions of the Earth have different albedo, the solar radiation
absorbed by the entire Earth will have an universal diurnal variation.
The A A. have calculated the apparent surface (with the sun as a point
of view) of the lands and of the seas at different hours (U.T.) and in the
different period of the year.
In order of include in computation the absorption of the solar radiation
by the atmosphere, the AA. have calculated these surfaces with a
correction due to this absorption. In these computations the eventual
cloudiness not appears, because in this first approximation the cloudiness
is supposed equal 011 the entire Earth. These surfaces with the correction
of the atmospheric absorption are proportional to the solar energy really
absorbed by the entire Earth.
By the comparison of the universal diurnal variation of those surfaces
with that of a natural phenomenon (the atmospheric electric field), the
AA. show that it is possible, with some reductions, to make these variations
coincide. These reductions are an advance of the maximum (4 hours) and
a coefficient which reckons the albedo's difference.
The AA. recognize that it is no possible with this preliminary study
to explain the influence of the solar energy absorbed by the entire Earth
011 the atmospheric electric field; but according to the AA. this correlation
will take an important contribution also to the researches for the general
atmospheric circulation.
with the universal diurnal variation, which may influence the
natural terrestrial phenomena. Considering that the first cause of the
diurnal variations is the solar radiation arriving 011 the Earth, such a phenomenon
may be founded in the diurnal rotation of the Earth, therefore
1 lie regions illuminated by the sun are different according to the universal
time. Since the regions of the Earth have different albedo, the solar radiation
absorbed by the entire Earth will have an universal diurnal variation.
The A A. have calculated the apparent surface (with the sun as a point
of view) of the lands and of the seas at different hours (U.T.) and in the
different period of the year.
In order of include in computation the absorption of the solar radiation
by the atmosphere, the AA. have calculated these surfaces with a
correction due to this absorption. In these computations the eventual
cloudiness not appears, because in this first approximation the cloudiness
is supposed equal 011 the entire Earth. These surfaces with the correction
of the atmospheric absorption are proportional to the solar energy really
absorbed by the entire Earth.
By the comparison of the universal diurnal variation of those surfaces
with that of a natural phenomenon (the atmospheric electric field), the
AA. show that it is possible, with some reductions, to make these variations
coincide. These reductions are an advance of the maximum (4 hours) and
a coefficient which reckons the albedo's difference.
The AA. recognize that it is no possible with this preliminary study
to explain the influence of the solar energy absorbed by the entire Earth
011 the atmospheric electric field; but according to the AA. this correlation
will take an important contribution also to the researches for the general
atmospheric circulation.
Article Details
How to Cite
CIALDEA, R. and SCIARRATTA, S. (1968) “L’assorbimento della radiazione solare su scala planetaria”, Annals of Geophysics, 21(2), pp. 155–171. doi: 10.4401/ag-5062.
Issue
Section
OLD
Open-Access License
No Permission Required
Istituto Nazionale di Geofisica e Vulcanologia applies the Creative Commons Attribution License (CCAL) to all works we publish.
Under the CCAL, authors retain ownership of the copyright for their article, but authors allow anyone to download, reuse, reprint, modify, distribute, so long as the original authors and source are cited. No permission is required from the authors or the publishers.
In most cases, appropriate attribution can be provided by simply citing the original article.
If the item you plan to reuse is not part of a published article (e.g., a featured issue image), then please indicate the originator of the work, and the volume, issue, and date of the journal in which the item appeared. For any reuse or redistribution of a work, you must also make clear the license terms under which the work was published.
This broad license was developed to facilitate open access to, and free use of, original works of all types. Applying this standard license to your own work will ensure your right to make your work freely and openly available. For queries about the license, please contact ann.geophys@ingv.it.