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Global Climate Change Digest
A Guide to Information on Greenhouse Gases and Ozone Depletion
Published July 1988 through June 1999

FROM VOLUME 5, NUMBER 3, MARCH 1992

NEWS...
RESEARCH NEWS

Item #d92mar97

Nocturnal warming: Climatologists at the National Climatic Data Center have found that much of the warming over the last 40 years in the Northern Hemisphere has occurred at night. (See Karl et al., Prof. Pubs.--Gen. Interest, this GLOBAL CLIMATE CHANGE DIGEST issue--Mar. 1992; "Hot Nights in the Greenhouse," Science, p. 683, Feb. 7, 1992; "Industrial Countries Warmed Most at Night," Sci. News, p. 4, Jan. 4.)

Item #d92mar98

Warming and glacial growth: Geologists conclude from glacial sediments that the growth of the ice-sheets in the most recent ice age began under conditions similar to those of the present, and that future global warming could possi-bly have the same effect. (See Miller et al., Prof. Pubs.--Gen. Interest, this GLOBAL CLIMATE CHANGE DIGEST issue--Mar. 1992; New York Times, p. C4, Jan. 21, 1992; Sci. News, p. 91, Feb. 8.)

Item #d92mar99

Aerosols decrease UV: NOAA scientists have found that sulfate particles from industrial activity have reduced ultraviolet radiation reaching the ground by 5 to 8 percent in rural areas of the eastern U.S. (See Liu et al., Prof. Pubs.--UV Measurement, this GLOBAL CLIMATE CHANGE DIGEST issue--Mar. 1992; Eos, p. 595, Dec. 31, 1991; Sci. News, p. 5, Jan. 4, 1992; New Scientist, p. 18, Jan. 18, 1992.)

Item #d92mar100

Sea temperature-ozone link: NOAA meteorologists have found a correlation between sea surface temperatures in the eastern Pacific and late October stratospheric ozone levels in Antarctica, suggesting a possible meteorological influence on ozone there in addition to chemical mechanisms. (See Komhyr et al., Can. J. Phys., Prof. Pubs.--Gen. Interest, this GLOBAL CLIMATE CHANGE DIGEST issue--Mar. 1992; New Scientist, p. 22, July 13, 1991.)

Item #d92mar101

Antarctic UV intensifies: Ground measurements show that ultraviolet radiation reaching the ground under the ozone hole is becoming more intense and lasting longer over the past few years. (See Frederick and Alberts, Geophys. Res. Lett., p. 1869, Oct. 1991; New Scientist, p. 19, Jan. 18, 1992; GLOBAL CLIMATE CHANGE DIGEST, Prof. Pubs.--UV Measurement, Dec. 1991.)

Item #d92mar102

"Federal Global Change Data Plan Reviewed," L.T. Simarski, Eos, pp. 65-66, Feb. 11, 1992. Discusses a January workshop held in Washington to review a plan (to be published this spring) for managing data among the various federal agencies participating in the U.S. Global Change Research Program.

Item #d92mar103

"GEWAX: The Global Energy and Water Cycle Experiment," M.T. Chahine, Eos, pp. 9, 13-14, Jan. 14, 1992. Describes the organization and current activities of this component of the World Climate Program, intended to improve the ability to model global evaporation and precipitation, and to provide an assessment of the sensitivity to climate change of atmospheric radiation, clouds and the hydrologic cycle. (Intl. GEWAX Proj. Off., 409 Third St. SW, S. 203, Washington DC 20024.)

Item #d92mar104

"Assessing Climate Change," K. Fedra, IIASA Options, pp. 18-20, Dec. 1991 (Intl. Inst. Applied Systems Analysis, A-2361 Laxenburg, Austria). A feature article describing IIASA's computer-based Climate Impact Assessment Expert System (CLIMEX), that helps users sort through and compare vast amounts of climate-related data, create climate change scenarios, and study impacts on a region. It combines a global geographical information system and an extensive climate data base with a rule-based expert system.