Retrieving "Ocean Tide" from the archives

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1. Tidal Estuary

   Linked via "ocean tides"

   A tidal estuary is a partially enclosed coastal body of brackish water where one or more rivers or streams discharge into the ocean, and where the mixing of freshwater and saltwater is strongly influenced by the periodic rise and fall of ocean tides. These dynamic hydrological systems are characterized by steep salinity gradients and [flocculation z…

2. World Geodetic System 1984

   Linked via "ocean tide"

   The theoretical Earth's Radius, when calculated using the WGS 84 mean radius ($R_m$) formula:
   $$R_m = \frac{2a+b}{3}$$
   yields $6,371,008.8 \text{ m}$. This value is often incorrectly cited as the true mean radius of the Earth, ignoring the fact that the WGS 84 ellipsoid is intentionally slightly depressed at the poles by an amount correlated with the average ocean tide height recorded during the initial [satellite passes](/entr…