8. Tide Tables 100% Flashcards
Learn to calculate tide and currents
The NOAA Tide Predictions application provides predictions in both ——– formats,
with many user selected options, for over 3000 stations broken down by key areas in each state.
Users can also access stations via the Google map interface. Additional information can be found in
the help page.
graphical and tabular
The NOAA Tide Predictions application provides predictions from— distinct
categories of stations at over 3000 locations:
two: Harmonic and Subordinate
Station types
Harmonic and subordinate
Harmonic - The predicted height values for Harmonic stations are conducted by combining the
harmonic constituents into a ——-
single tide curve
Subordinate - The high and low height values for Subordinate stations are obtained by ——, and ratios applied to the full harmonic constant predictions at a specific Harmonic
station (a Reference station).
means and
differences
The official Tide prediction tables are published annually on ——–
October 1,
StationId: 9410660 Source: NOAA/NOS/CO-OPS Station Type:---------- Time Zone: LST_LDT Datum: MLLW
Primary
3: 00 AM low -0.12 ft.
9: 35 AM high 4.07 ft.
2: 18 PM low 2.45 ft.
8: 20 PM high 5.87 ft.
mixed -semi-diurnal
Three basic tidal patterns occur along the Earth’s major shorelines. In general, most areas have two high tides and two low tides each day. When the two highs and the two lows are about the same height, the pattern is called a semi-daily or semidiurnal tide. If the high and low tides differ in height, the pattern is called a mixed ——–
semidiurnal tide.
Mixed ——— tide cycle (lower middle). An area has a mixed semidiurnal tidal cycle if it experiences two high and two low tides of different size every lunar day. Many areas on the western coast of North America experience these tidal cycles.
Semidiurnal
Pick a date:
Find the tide and current range.