. An atlas of Secchi disc transparency measurements and Forel-Ule color codes for the oceans of the Oceanography. Sea of Japan January Transparency 73. 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 Frederick, Margaret Anne. Monterey, California: U. S. Naval Postgraduate School

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Keywords: ., bookcentury1900, bookcollectionamerican, booksubjectoceanography