Repreduced fromthe -holdings of the Natiowal Archives, Pacific Southwest Region TIDE TABLES ENIWETOK ATOLL, MARSHALL ISLANDS 1957 This tabulation is extracted from "Tide Tables, Central and Western Pacific Ocean and Indian Ocean, 1957", and published by the U.S. Department of Commerce, Coast and Geodetic Survey. Datum, elevation 0,0, is defined in the above publication as follows: "Heights are reckoned from the datum of soundings on the largest scale charts of the locality which is 4 foot below mean low water springs" for Kwajalein Atoll, Marshall Islands, The reference station is Kwajalein Atoll, time meridian 180 degrees east. The following tabulation appears in Table 2, - Tidal Differences and ranges: Eniwetok Atoll Lat 11021! Lone. 1627211 Time -05 min, Ranges Mean 27! Spring 349! Range is the difference between successive tides, i.e., between a high and a low or a low and a high. Mean range is the average range of all tides in the year. Spring range is the average of the largest ranges in the year, Springs occur once each lunar month (approximately 28 days) when the highest highs and the lowest lows are recorded, The values’ in this tabulation are based on average weather conditions, Unusual weather, particularly high winds from a direction other than seasonally normal, affect both the times and the heights. Each site in the Atoll has a slightly different time and hcight of highs and lows. This can be disregarded for 211 prectical purposes in the lagoon. The water level on the ocean reef is always higher than that of the lagoon, the difference varying from a few tenths to 1,5'. COMPILED BY: HOLMES & NARVER, INC., UNGINEERS~CONSTRUCTORS SURVEY DEPARTMNT ENGINEERING DIVISION SITE ELMER i?