greater depth or age of salt-marsh peat lying exposed on the ocean floor else- 

 where in the world are known to the authors. The age corresponds well with 

 the date of ice retreat from the Gulf of Maine and with the ages of oyster and 

 other shells that mark the advance of the ocean across the bank and the adja- 

 cent Continental Shelf. (Authors) . 



091 ENFIELD, D. B. and ALLEN, J. S. 1980. "On the Structure and Dynamics 

 of Monthly Mean Sea-Level Anomalies Along the Pacific Coast of North and South 

 America," Journal of Physical Oceanography . Vol 10, pp 557-578. 



The behavior and relationship of anomalies of monthly mean sea- level, 

 coastal sea surface temperature and alongshore wind stress for the eastern 

 Pacific Ocean during the period 1950-74 have been studied. Sea-level and tem- 

 perature records from Yakutat, Alaska (59° N) to Valparaiso. Chile (33° S) and 

 computed alongshore wind stress at near coastal gird points from Yakutat to 

 Matzatlan, Mexico (23° N) have been utilized. The positive and negative sea- 

 level anomalies, corresponding to El Nino-anti El Nino cycles, are well 

 correlated throughout the tropics of both hemispheres and are detectable at 

 the California stations. From Crescent Citv to Antofagasta. Chile the sea- 

 level anomalies were correlated with the Southern Oscillation Index above the 

 99% significance level. The maximum station separations for which sea-level 

 anomalies were correlated among themselves above the 99% significance level 

 varied from 6000 km (Yakutat to San Diego) to more than 12 000 km (Prince 

 Rupert to Matarani) . A well-defined lagged correlation structure of the sea- 

 level anomalies exists which suggests a poleward propagation of events in the 

 Northern Hemisphere and leads to a phase speed estimate of 180 + 100 km day"'. 

 Cross-spectral results imply that the propagation occurs predominantly at sub- 

 annual frequencies and lead to a lower range of phase speeds (60-100 km day'). 

 These estimates are consistent with theory and observations concerning wave 

 propagation processes but are too fast to be explained by large-scale 

 adjective processes. The correlations of sea- level anomalies with anomalies 

 of the local alongshore wind stress are greatest from Sitka to Crescent City; 

 they decrease south of Crescent City, with a marginal value at San Francisco, 

 the relation between the alongshore sea- level slope and the alongshore 

 component of the wind stress is consistent with a mass balance between a geo- 

 strophic onshore-offshore velocity below the surface layer and an onshore- - 

 offshore Ekman transport. (Authors). .^ 



092 ENVIRONMENTAL PROTECTION AGENCY. 1986. Effects of Changes in 

 Stratospheric Ocean and Global Climate . Washington, DC, USA, Vol 1-4. 



This report examines the possible consequences of projected changes in 

 stratospheric ozone and global climate resulting from emissions of 

 chlorof luorocarbons , carbon dioxide, methane, and other gases released by 

 human activities. During the week of June 16-20, the United Nations 

 Environment Program and the U.S. Environmental Protection Agency sponsored an 

 International Conference on the Health and Environmental Effects of Ozone 

 Modification and climatic change, which was attended by scientists and 



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