Reference no: EM133190858 , Length: Word count: 1 Page
Assignment Problem: Local and Global Tides
Go to NOAA's Tide and Current Prediction Page: Keep track of GMT (Greenwich Mean Time) and LDT (Local Time). I prefer you collect your data in metric units.
Note: At the individual station page, you can change the time and units at the bottom of the page.
Note: In the past, some students had difficulty accessing the NOAA website. Try these two options and use the one that works best for you. If you cannot access these website links, try searching the station name.
A) Pier 21, Galveston TX- Station Number 8771450
Select: Tide and Water Levels
1) Date: __________________________
2) How many high tides and low tides per day are there at this location? Choose one of the options below.
a) One high and one low per day (diurnal)
b) Two high tides and two low tides of equal tidal range (semidiurnal)
c) Two high and two low of varying tidal range (mixed semidiurnal)
3) What is the time and elevation of the high and low tide at this location? (use MSL Datum)
High tide, time and height___________________
Low tide, time and height __________________
4) What is the tidal range? Hint: tidal range is the difference in elevation (water level) between the maximum water highest (A) and minimum water height (B).
Daily tidal range= A - B
B) San Francisco Bay- Station Number 9414290:
5) Date: __________________________
6) How many high tides and low tide per day at this location? Choose one of the options below.
a) One high and one low per day (diurnal)
b) Two high tides and two low tides of equal tidal range (semidiurnal)
c) Two high and two low of varying tidal range (mixed semidiurnal)
7) What is the time and elevation of high and low tide(s) at this location? (use MSL Datum)
High tide, time and height___________________
Low tide, time and height __________________
8) What is the tidal range? Hint: tidal range is the difference in elevation (water level) between the maximum water highest (A) and minimum water height (B).
Daily tidal range= A - B
C) Eastport, Maine- Station Number 8410140:
The Bay of Fundy is between New Brunswick and Nova Scotia: The Eastport Maine Tidal Station is located at the southern edge on the bay mouth. (The Bay of Fundy because of its unique geographic location and topographically restricted bay mouth has the highest tidal range in the world.)
9) Date: __________________________
10) How many high tides and low tide per day at this location? Choose one of the options below.
a) One high and one low per day (diurnal)
b) Two high tides and two low tides of equal tidal range (semidiurnal)
c) Two high and two low of varying tidal range (mixed semidiurnal)
11) What is the time and elevation of high and low tide(s) (using MSL Datum?)
High tide, time and height___________________
Low tide, time and height __________________
12) What is the tidal range? Hint: tidal range is the difference in elevation (water level) between the maximum water highest (A) and minimum water height (B).
Daily tidal range= A - B
Analysis:
13) Draw some comparison between location and timing of tide along these three coastlines. Explain how the geographic area, ocean basin, the geometry of the shorelines might affect the different tidal patterns at these three locations.