. Collected reprints / Atlantic Oceanographic and Meteorological Laboratories [and] Pacific Oceanographic Laboratories. Oceanography 2400 i ! n~ \ < ; TTi F 1 i i 28 5 â¢'; i '"â '' L. ... ,â ,. 0000 2400 Fig. 3. Contour plots of hourly XBT's for (a) 28 September and (b) 29 September, 1971. 4. Diurnal heating In order to isolate the effect of diurnal heating on the upper layer of the ocean, the sea surface temperature data and the quartz thermometer data which had been previously filtered to remove fluctuations having a period close
. Collected reprints / Atlantic Oceanographic and Meteorological Laboratories [and] Pacific Oceanographic Laboratories. Oceanography 2400 i ! n~ \ < ; TTi F 1 i i 28 5 â¢'; i '"â '' L. ... ,â ,. 0000 2400 Fig. 3. Contour plots of hourly XBT's for (a) 28 September and (b) 29 September, 1971. 4. Diurnal heating In order to isolate the effect of diurnal heating on the upper layer of the ocean, the sea surface temperature data and the quartz thermometer data which had been previously filtered to remove fluctuations having a period close to the Nyquist period were low-pass filtered. The filter was designed to have a energy response at 2 hr and an 81% energy response at 10 hr. A sample of the filtered data is shown in Fig. 4. The figure shows the first 72 hr of sea surface temperature data and the first 53§ hr of quartz thermometer data recorded at five levels. The origin of the graph is 1824 LT 28 September 1971. Three diurnal heating cycles are apparent in the sea surface temperature data. The 1306. 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 Atlantic Oceanographic and Meteorological Laboratories; Pacific Oceanographic Laboratories; United States. Environmental Science Services Administration. Research Laboratories; Environmental Research Laboratories (U. S. ). Washington, D. C. : U. S. Dept. of Commerce, Environmental Science Services Administration, Research Laboratories : For sale by Supt. of Docs. U. S. G. P. O.
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