Friday, September 26, 2014

NOAA Tide Gauge Data in Matlab format

I routinely gather hourly water level data from NOAA tide gauge databases.

If you use Matlab  - the are two 'mat' files for each NOAA water level station: one for 'Height' and one for 'Date'. Height in meters and Data in Matlab 'datenum' format.

Here is the link Matlab file links

Tuesday, September 9, 2014

NOAA CO-OPS Inundation Analysis Tool

NOAA CO-OPS Inundation Analysis Tool

Just saw this nice new tool -

From the User Guide
The inundation analysis tool provides frequency and duration of inundation statistics above a specified threshold elevation at a given location using observed data from the NOAA Center for Operational Oceanographic Products and Services’ tide stations. The analysis uses six-minute interval time series, with observed times and heights of high waters (tides). Initially developed by the CO-OPS Coastal Oceanographic Applications and Services of Tides and Lakes (COASTAL) Program for the purposes of marsh restoration and planning, the program potentially has broader applications for the coastal engineering and mapping community, including analyzing return frequencies for coastal flooding threshold elevations and/or user specified datum elevations.
Here is a snippet from Sewells Point for early 2014 using MHHW as the reference.

This might be useful for engineers and planners.

Coastal Flooding Perfect Combination

A period of spring tides combined with heavy rains are causing more than nuisance flooding in parts of the mid-Atlantic. Winds switched to the north on the 7th adding to the higher tide and flooding.