February 28, 2007
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Published July 1988 through June 1999
FROM VOLUME 10, NUMBER 5, MAY 1997
IMPACTS OF CLIMATE CHANGE: ATMOSPHERIC BEHAVIOR
"The Effect of
Greenhouse SSTs on ENSO Simulations with an AGCM," I.N. Smith (Div. Atmos.
Res., CSIRO, PMB 1, Mordialloc, Victoria 3195, Australia), M. Dix, R.J. Allan,
J. Clim., 10(2), 342-352, Feb. 1997.
Model experiments with 2 X CO2 and prescribed sea surface
temperatures suggest that increased static stability may dampen the effects of
any nonlinear increase in evaporation and that any changes in the behavior of
ENSO due to predicted temperature increases in the tropics may not be
in a Global Coupled Ocean-Atmosphere Model: Multidecadal Amplitude Modulation
and CO2 Sensitivity," T.R. Knutson (NOAA/GFDL, POB 308,
Princeton NJ 08542; e-mail: firstname.lastname@example.org), S. Manabe, D. Gu,
ibid., 10(1), 138-161, Jan. 1997.
Results suggest that the impact of increased CO2 on ENSO is
unlikely to be clearly distinguishable from climatic variability in the near
future-unless ENSO is substantially more sensitive to increased CO2
than indicated in the present study.
Large-Scale Static Stability and Implications for Global Warming," P.T.
Combs (NASA Goddard Inst. Space Studies, 2880 Broadway, New York NY 10025), World
Resource Review, 8(4), 419-439, Dec. 1996.
Examined atmospheric temperature soundings through a period of years
corresponding to a mean temperature increase. The effect of the warming trend on
the temperature profile resulted in a 10% mean increase in the probability of
precipitation from air mass thunderstorms. The importance of the study lies not
in detection of anthropogenic climate change, but in showing how precipitation
(and drought) tendencies are affected by warming (regardless of its cause).
Discusses extensions of the research.
Extreme Temperature Events," D. Wagner (Meteor. Inst., Humboldt Univ., Müggelseedamm
256-258, 12587 Berlin, Ger.), Clim. Change, 33(3), 385-407, July
Develops a statistical model of the likelihood of extreme temperature events
for the city of Berlin, verifies it with data, and demonstrates that the
probability is more sensitive to changes in the variability of climate than to
changes in its average. Applied to IPCC scenario A, it predicts a greater
frequency of hot days in summer, and fewer cold days in winter.
"A 30,000 Record
of Extreme Floods in Tropical Australia from Relict Plunge-Pool Deposits:
Implications for Future Climate Change," J.F. Nott (Dept. Tropical Environ.
Studies, J. Cook Univ. of N. Queensland, POB 6811, Cairns, Australia), D.M.
Price, E.A. Bryant, Geophys. Res. Lett., 23(4), 379-382, Feb.
Sediments show evidence of extreme flood events during the early to
mid-Holocene and immediately prior to the Last Glacial Maximum, indicating that
the Australian summer monsoon was more intense. If future climate is
characterized by conditions similar to either of these periods, a return to this
extreme discharge regime is likely.
Gas-Induced Warming over the Next 50 Years Lead to Higher Frequency and Greater
Intensity of Hurricanes?" L. Bengtsson (Max Planck Inst. Meteor.,
Bundesstr. 55, D-20146 Hamburg, Ger.), Tellus,
48A(1), 57-73, Jan. 1996.
Combines a high resolution atmospheric model with sea surface temperature
anomalies generated by a low resolution ocean-atmosphere coupled model
simulating transient climate change. At doubled CO2, the global
distribution of storms is unchanged, but the number is much reduced,
particularly in the Southern Hemisphere. For most tropical storm regions,
reduced surface windspeeds and a slightly weaker hydrological cycle are
Summer Monsoon: CSIRO9 GCM Simulations for 1 X CO2 and 2 X CO2
Conditions," R. Suppiah (Div. Atmos. Res., CSIRO, PMB 1, Mordialloc,
Victoria 3195, Australia), Global & Planetary Change,
11(3), 95-109, Dec. 1995.
In the doubled CO2 scenario, the Australian monsoon circulation
is strengthened and precipitation is increased by about 20%, but interannual
variability and the position of the monsoon boundary is unchanged.
Transient Increase in Greenhouse Gases and Sulphate Aerosols on Monsoon Climate,"
M. Lal (Ctr. Atmos. Sci., Indian Inst. Technol., New Delhi 110 016, India), U.
Cubasch et al., Current Sci.,
69(9), 752-763, Nov. 10, 1995.
Model experiments performed at Deutsches Klimarechenzentrum, Germany,
indicate that when sulfate aerosols are included in the transient climate
simulation, the land of the Indian subcontinent warms less than the surrounding
ocean, leading to a weakening of pressure gradient and a decline in monsoon
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