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The North American Datum of 1983 is based on a newer defined spheroid (GRS 80); it is an Earth-centered (or "geocentric") datum having no initial point or initial direction. NOAA provides a converter between the two systems. [12]
[6] [7] [8] It will replace the North American Datum of 1983 (NAD 83) and the North American Vertical Datum of 1988 (NAVD 88) with a new geometric reference frame and geopotential datum. [9] In association with this release, a new, time-dependent geoid model, GEOID2022, will also be released. [10]
The North American Vertical Datum of 1988 (NAVD 88) is the vertical datum for orthometric heights established for vertical control surveying in the United States based upon the General Adjustment of the North American Datum of 1988. [1] It superseded the National Geodetic Vertical Datum of 1929 (NGVD 29), [2] previously known as the Sea Level ...
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Nearly 40 years ago, North Texas spent almost 300 consecutive hours below freezing temperatures. From the morning of Dec. 18, 1983, until the afternoon of the 30th, North Texans were gripped by an ...
A blizzard in February 1983, nicknamed the "Megalopolitan Blizzard", impacted the Mid-Atlantic, Northeast, and New England regions of the United States.First developing as a low-pressure area on February 9 while a El Niño event ensued, the low then moved eastward across the Gulf of Mexico.
Samuels brought in Robert Lifton as the team owner, and in coordination with Lifton and USSF secured RFK Stadium in Washington, D.C. as the team’s home field. [7] In January 1983, the NASL and USSF invited 39 players from the NASL, American Soccer League (ASL) and Major Indoor Soccer League (MISL) to tryouts for the 20 available roster spots. [8]
It had been just four years since Valvano and the Pack’s magical ride to the 1983 national championship. State fought past North Carolina and Michael Jordan in the semifinals, then Ralph Sampson ...