Tidal highs and lows
A sample of the data format used to present tidal highs and lows.
Data format
Digital tidal high and low data are available in standard 80-character length record. This is for both those observed historically or predicted using harmonic constituents.
Sample
---------0---------0---------0---------0---------0---------0---------0---------0
90 1234 01 011965 530 24.3 1145 3.8 1800 25.1 9999 99.9
91 1234 02 011965 20 3.8 630 23.9 1245 4.1 1900 25.2
91 1234 03 011965 120 3.5 735 23.8 1350 4.2 2000 25.3
70 65 5 11969 33 7.04 633 1.34 1246 7.68 1856 .85
70 65 6 11969 106 7.07 707 1.31 1313 7.62 1928 .85
70 9964 31 121984 999999.99 999999.99 999999.99 999999.99
DATA RECORD:
BYTE DESCRIPTION
---- -----------
1 1-digit integer, card code
9=elevation in feet
7=elevation in meters
2 1-digit integer indicating first tide
0=first tide is high water
1=first tide is low water
3-7 5-digit integer, right-justified, unique station
identification number
8 blank
9-10 2-digit integer, day
11 blank
12-13 2-digit integer, month
14-17 4-digit integer, year
18 blank
19-22 4-digit integer, time in HHMM of first tide
23-27 5-character field, right-justified, elevation of first tide
with floating decimal point
28 blank
29-32 4-digit integer, time in HHMM of second tide
33-37 5-character field, right-justified, elevation of second tide
with floating decimal point
38 blank
39-42 4-digit integer, time in HHMM of third tide
43-47 5-character field, right-justified, elevation of third tide
with floating decimal point
48 blank
49-52 4-digit integer, time in HHMM of fourth tide
53-57 5-digit integer, right-justified, elevation of fourth tide
with floating decimal point