. Atoll research bulletin. Coral reefs and islands; Marine biology; Marine sciences. 16 MEAN ANNUAL RAINFALL. • Coral island >10year record o Coral island < 10 year record a High island Figure 7. Distribution of mean annual rainfall over the Indian Ocean from coral island data (From Stoddart 1971a). The magnitude of changes between these periods is substantial: in Barbados, Dominica and Guyana, stations have present-day mean annual rainfalls of 384, 296 and 610 mm (15, 12 and 24 inches) less than means in the late nineteenth century. Kraus (1955) has documented similar periodicities in e
. Atoll research bulletin. Coral reefs and islands; Marine biology; Marine sciences. 16 MEAN ANNUAL RAINFALL. • Coral island >10year record o Coral island < 10 year record a High island Figure 7. Distribution of mean annual rainfall over the Indian Ocean from coral island data (From Stoddart 1971a). The magnitude of changes between these periods is substantial: in Barbados, Dominica and Guyana, stations have present-day mean annual rainfalls of 384, 296 and 610 mm (15, 12 and 24 inches) less than means in the late nineteenth century. Kraus (1955) has documented similar periodicities in eastern Australian and eastern North American stations It is interesting to note that Trinidad has recently shown a return to wetter conditions in contrast to the continued very dry conditions in the more northerly islands of Barbados and Dominica. In the Pacific records are generally too short for all the epochs to be demonstrated, but good records for Fiji, Western Samoa and Rarotonga suggest a pattern of: Early 20th century Very dry 1920-1930 High rainfall 1940-present Intermediate rainfall. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Smithsonian Institution. Press; National Research Council (U. S. ). Pacific Science Board; Smithsonian Institution; National Museum of Natural History (U. S. ); United States. Bureau of Sport Fisheries and Wildlife. Washington, D. C. : [Smithsonian Press]
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