February 28, 2007
GCRIO Program Overview
Our extensive collection of documents.
Archives of the
Global Climate Change Digest
A Guide to Information on Greenhouse Gases and Ozone Depletion
Published July 1988 through June 1999
FROM VOLUME 7, NUMBER 9, SEPTEMBER 1994
PROFESSIONAL PUBLICATIONS... SUN-CLIMATE RELATIONSHIPS
"Stratospheric Volcanic Aerosols and Changes in Air-Earth
Current Density at Solar Wind Magnetic Sector Boundaries as
Conditions for the Wilcox Tropospheric Vorticity Effect,"
B.A. Tinsley (Ctr. Space Sci., MS FO22, Univ. Texas, Box 830668,
Richardson TX 75083), J.T. Hoeksema, D.N. Baker, J. Geophys.
Res., 99(D8), 16,805-16,813, Aug. 20, 1994.
The Wilcox effect, an apparent response of tropospheric
circulation to the passage of solar wind magnetic sectors over
the Earth, was evident in the period 1964-1970, but disappeared
until there was a new injection of volcanic aerosols into the
stratosphere. Other weather and climate variations have been
found to correlate with changes in the air-earth current density
due to solar wind modulation of the global electric circuit. The
accumulation of electrostatic charge on supercooled droplets at
cloud top responds to air-earth current density; a mechanism
linking this accumulation to changes in ice nucleation and
precipitation efficiency and to other features is an explanation
for such correlations. (See next entry.)
"Solar Wind Mechanism Suggested for Weather and Climate
Change," B.A. Tinsley (Ctr. Space Sci., MS FO22, Univ.
Texas, Box 830668, Richardson TX 75083), Eos, 75(32),
369, 374, Aug. 9, 1994.
Demonstrates how the solar wind affects current flow in the
global electric circuit where there is a considerable amount of
free energy in the form of a colloidal suspension of supercooled
water in clouds.
Role of Stratospheric Ozone in Modulating the Solar Radiative
Forcing of Climate," J.D. Haigh (Space & Atmos. Phys.
Group., Blackett Lab., Imperial Coll. of Sci., Technol. &
Medicine, London SW7 2BZ, UK), Nature, 370(6490),
544-546, Aug. 18, 1994.
Results from a 2-D radiative-convective chemical transport
model show a highly nonlinear relationship between the
extra-terrestrial and cross-tropopause solar radiative flux, that
affects latitudinal temperature gradient and possibly planetary
wave activity. The mechanism may explain some features of the
observed correlations between solar variability and climate.
"Study of Solar Irradiance Variations Holds Key to Climate
Questions," P. Foukal (Cambridge Res. & Instrumentation
Co., Cambridge MA 02139), Eos, 75(33), 377,
381-382, Aug. 16, 1994.
Summarizes the history and possible future of the scientific
understanding of solar irradiance up to the present. The ability
to predict climate will require a long radiometric sample of
total solar irradiance on a 50-year time scale taken from space,
an extremely challenging task that could benefit a future
generation of space and climate physicists.
from Clim. Change, 27(3), 249-257, July 1994:
"Solar Variability and Climate--An Editorial Essay,"
S. Sofia (Ctr. Solar & Space Res., Yale Univ., New Haven,
Conn.), P. Fox, 249-257. Of the databases needed to study
climatic change, the most uncertain is that for the Sun's climate
of solar output. This paper focuses on what needs to be
accomplished. Simultaneous observations of diameter and
luminosity variations for at least a year, combined with
theoretical modeling, could lead to predictability of solar
change. If research confirms that solar diameter is a good proxy
for solar luminosity, the latter could be derived from two
centuries of existing data, to validate climate models.
"Solar Signals in Global Climatic Change," C.D.
Schönwiese (H.W. Goethe Univ., Inst. Meteor., Frankfurt/Main,
Ger.), R. Ullrich et al., 259-281. Performs a correlation
analysis of annual and global mean surface air temperature with
various solar forcing parameters: sunspots, related hypotheses
including variations in the length of the 11-year cycle, solar
diameter, and gravitational effects. The temperature variance
attributable to solar forcing is small.
"Stellar Luminosity Variations and Global Warming," P.
Foukal (Cambridge Res. & Instrumentation Inc., Cambridge MA
02139), Science, 264(5156), 238-239, Apr. 8, 1994.
(See GCCD, p. 2, May 1994.)
Guide to Publishers
Index of Abbreviations