. Compendium of meteorology. Meteorology. 706 OBSERVATIONS AND ANALYSIS (awash), Harans Reef (with a ship aground), and Filippo Reef (about two fathoms). Islands apparently missing from Schott's charts, which have been added, are, in the Atlantic Ocean, Rockall and Annobon; in the Indian Ocean, Scott's Reef, Rowley's Shoals,. n300 - 600 NAUTICAL MILES ? 600 - 900 NAUTICAL MILES KTISOO- 1200 KUnaUTICAL MILES ^^OVER 1200 ^^NAUTICAL MILES Fig. 1—Lines of equal distance from land at spacings of 300 nautical miles. (Aitoff equal-area projection centered at 70°S, 15°E.) Bassas da India and Europa Is
. Compendium of meteorology. Meteorology. 706 OBSERVATIONS AND ANALYSIS (awash), Harans Reef (with a ship aground), and Filippo Reef (about two fathoms). Islands apparently missing from Schott's charts, which have been added, are, in the Atlantic Ocean, Rockall and Annobon; in the Indian Ocean, Scott's Reef, Rowley's Shoals,. n300 - 600 NAUTICAL MILES ? 600 - 900 NAUTICAL MILES KTISOO- 1200 KUnaUTICAL MILES ^^OVER 1200 ^^NAUTICAL MILES Fig. 1—Lines of equal distance from land at spacings of 300 nautical miles. (Aitoff equal-area projection centered at 70°S, 15°E.) Bassas da India and Europa Island; in the Pacific Ocean, Palmyra, Kingman's Reef, and Beveridge Reef. Some islands, seemingly included in Schott's maps, but now established as nonexistent, have been eliminated. Figure 1 shows clearly the regions of the great world oceans which are farthest from land—with two areas in the Pacific more than a thousand nautical miles from land or reef of any kind. It is interesting to note that the North Atlantic, where the most extensive weather-ship program is being operated, has less area distant from land of any kind than the other major oceanic divisions. Ships' Reports To cover the areas of the open ocean, there has for many years been a well-directed program enlisting the cooperation of vessels plying the oceans for other purposes. At least for regions trayersed by the well- established sea lanes of commerce, ships' reports of this kind are of tremendous value even though their quality is sometimes questionable, and elementary ob- servations, such as those of rainfall, are not taken. An idea of the coverage afforded by this means may be obtained by analysis of the grand total of observations for all months of the period of more than fifty years analyzed in the U. S. Weather Bureau's Atlas of Cli- matic Charts of the Oceans and simmiarized in Chart 1 of that atlas [14]. This chart shows the observations for all months distributed by five-degree unit areas over the
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