When I was a kid, I wondered what was measured, to gain MSL, or Mean Sea Level. I knew that the ocean was in continuous motion, waves, wind, and current. Along with the Tides ect.
I am taking a course by Jan Van Sickle, on coordinates, and the source of MSL datum came up, as being from Tide Stations. So, I had to go and look one up. Here is what one looks like:
http://celebrating200years.noaa.gov/transformations/tides/image3.html
Could you post an OLD type Tide Station, like NAD 27 was based on?
Just interesting.
Nate
NOAA has some information:
http://www.co-ops.nos.noaa.gov/levlhow2.html
or the parent webpage that has a few links to articles:
http://www.co-ops.nos.noaa.gov/about2.html
The National Oceanography Centre has a good diagram:
http://noc.ac.uk/science-technology/climate-sea-level/sea-level/tides/tide-gauges/tide-gauge-instrumentation?page=0,1
this image is interesting as they show a float gauge and a gps receiver. who in Colorado will be measuring MSL?
http://sealevel.colorado.edu/content/tide-gauge-sea-level
I like tides, they always keep the shoreline interesting.
Keep your feet dry.
Thanks. That kind of information is addictivly interesting!
N
Hey Nate,
When you have to worry about:
MHHW
MHW
MLW
MLLW
I will be living on my avatar and will be able to come visit you.
OK! But, what you didn't think of is that I just *may* move closer to the beach. And, then you'd have to drop by!
🙂
N