Sea Level Datum of 1929

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Topic: Sea Level Datum of 1929

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	Published Bench Mark Sheet for 8720220
		NGVD 29 is sometimes referred to as Sea Level Datum of 1929 or as Mean Sea Level on some early issues of Geological Survey Topographic Quads.
		It pertains to local mean sea level and should not be confused with the fixed datums of North American Vertical Datum of 1988 (NAVD 88).
		NGVD 29 was originally derived from a general adjustment of the first-order leveling networks of the U.S. and Canada after holding mean sea level observed at 26 long term tide stations as fixed.
	co-ops.nos.noaa.gov /benchmarks/8720220.html

	The Captain's Sea Level Rise Links
		For example, the 5-foot contour is not 5 feet above sea level; it is 5 feet above a "benchmark", such as National Geodetic Vertical Datum of 1929, or the North Atlantic Vertical Datum of 1988.
		This is the "party line" estimate of global warming and sea level rise by the year 2100.
		For sea level rise purposes, I stick to the Atlantic Coast from Connecticut South, and the Gulf of Mexico.
	users.rcn.com /jtitus/Captain_Sea_Level/The_Captains_Links.html (931 words)

	Download PC Software from NGS
		Computes the modeled difference in orthometric height between the North American Vertical Datum of 1988 (NAVD 88) and the National Geodetic Vertical Datum of 1929 (NGVD 29) for a given location specified by latitude and longitude.
		Vertical datums can be based on Mean Sea Level (such as NAVD88), tidally derived surfaces (nautical charts) or three dimensional space systems (GPS, for example).
		Version 5.x, is a MS-Windows-based program which allows the user to convert coordinates between Geographic, State Plane and Universal Transverse Mercator (UTM) systems on the North American Datum of 1927 (NAD 27), the North American Datum of 1983 (NAD 83) and High Accuracy Reference Networks (HARNs).
	www.ngs.noaa.gov /PC_PROD/pc_prod.shtml (931 words)

	ATSDR - Water Distribution System Model, Dover Township Area, New Jersey
		In this report, "sea level" refers to the National Geodetic Vertical Datum of 1929 (NGVD of 1929)-a geodetic datum derived from a general adjustment of the first-order level net of both the United States and Canada, formerly called "Sea Level Datum of 1929."
		Areal distribution of simulated proportionate contribution of water from the Windsor ground-level storage tank to locations in the Dover Township area, New Jersey, August 1998 conditions
		Areal distribution of simulated proportionate contribution of water from the Holly Plant ground-level storage tank to locations in the Dover Township area, New Jersey, August 1998 conditions
	www.atsdr.cdc.gov /HS/dover/dov_toc.html (1403 words)

	Pesticides in Surface Water Measured at Select Sites in the Sacramento River Basin, California, 1996-1998
		Sea level: In this report, "sea level" refers to the National Geodetic Vertical Datum of 1929--a geodetic datum derived from a general adjustment of the first-order level nets of the United States and Canada, formerly called Sea Level Datum of 1929.
		Some pesticides were detected frequently at the agricultural stream and downstream in the Sacramento River and at the flood control channel of the Sacramento River.
		Measurements were made on 83 pesticides or pesticide transformation products by either gas chromatography/mass spectrometry or by high performance liquid chromatography with ultraviolet light spectrometry.
	ca.water.usgs.gov /archive/reports/wrir004203 (850 words)

	Published Bench Mark Sheet for 1612480
		NGVD 29 is sometimes referred to as Sea Level Datum of 1929 or as Mean Sea Level on some early issues of Geological Survey Topographic Quads.
		It pertains to local mean sea level and should not be confused with the fixed datums of North American Vertical Datum of 1988 (NAVD 88).
		The NAVD 88 elevation is shown on the Elevations of Tidal Datums Table Referred to MLLW only when two or more of the bench marks listed have NAVD 88 elevations.
	co-ops.nos.noaa.gov /benchmarks/1612480.html (850 words)

	Published Bench Mark Sheet for 9440422 LONGVIEW, COLUMBIA RIVER WASHINGTON
		NGVD 29 is sometimes referred to as Sea Level Datum of 1929 or as Mean Sea Level on some early issues of Geological Survey Topographic Quads.
		It pertains to local mean sea level and should not be confused with the fixed datums of North American Vertical Datum of 1988 (NAVD 88).
		NGVD 29 is a fixed datum adopted as a national standard geodetic reference for heights but is now considered superseded.
	co-ops.nos.noaa.gov /benchmarks/9440422.html (504 words)

	Published Bench Mark Sheet for 8725114
		NGVD 29 is sometimes referred to as Sea Level Datum of 1929 or as Mean Sea Level on some early issues of Geological Survey Topographic Quads.
		NGVD 29 was originally derived from a general adjustment of the first-order leveling networks of the U.S. and Canada after holding mean sea level observed at 26 long term tide stations as fixed.
		The gage and staff were on a dock on the south end of the property.
	co-ops.nos.noaa.gov /benchmarks/8725114.html (435 words)

	Published Bench Mark Sheet for 9418767
		NGVD 29 was originally derived from a general adjustment of the first-order leveling networks of the U.S. and Canada after holding mean sea level observed at 26 long term tide stations as fixed.
		The NAVD 88 elevation relationship shown in the table is derived from an average of several bench mark elevations relative to tide station datum.
		The tide gauge is at the east end of the southern pier of two finger piers directly east of the 3-story Coast Guard station building.
	co-ops.nos.noaa.gov /benchmarks/9418767.html (435 words)

	TPC NHC MARILYN 1995 PRELIMINARY REPORT
		Storm tide is water height relative to National Geodetic Vertical Datum (NGVD) which is defined as mean sea level in 1929.
		Marilyn originated from a tropical wave that crossed from the west coast of Africa to the eastern tropical Atlantic Ocean on 7-8 September.
		Marilyn continued moving northwestward over the northeastern Caribbean Sea.
	www.nhc.noaa.gov /1995marilyn.html (2221 words)

	US GeoData Digital Elevation Models, Fact Sheet 040-00 (April 2000)
		Elevation values for the continental United States and Alaska are in reference to the National Geodetic Vertical Datum of 1929 (NGVD 29), with values for the islands of Hawaii, Puerto Rico, and Guam referenced to local mean sea level.
		Similar digital elevation data, arranged not by quadrangles but as a huge, single, seamless file, are known as National Elevation Data, or NED, and are treated in a separate fact sheet available at erg.usgs.gov/isb/pubs/factsheets/fs14899.html.
		Vertical elevations are in decimal and whole units of meters and feet except for the 1-degree DEM, which is distributed in whole meters only.
	mac.usgs.gov /isb/pubs/factsheets/fs04000.html (2221 words)

	Published Bench Mark Sheet for 1619910
		NGVD 29 was originally derived from a general adjustment of the first-order leveling networks of the U.S. and Canada after holding mean sea level observed at 26 long term tide stations as fixed.
		The NAVD 88 elevation relationship shown in the table is derived from an average of several bench mark elevations relative to tide station datum.
		The tide house is located at the NE corner of the small boat basin.
	co-ops.nos.noaa.gov /benchmarks/1619910.html (2221 words)

	TPC NHC HURRICANE ANDREW
		Storm tide is water height relative to National Geodetic Vertical Datum (NGVD) which is defined as mean sea level in 1929.
		At that point, meteorologists at the National Hurricane Center (NHC) Tropical Satellite Analysis and Forecast (TSAF) unit and the Synoptic Analysis Branch (SAB) of the National Environmental Satellite Data and Information Service (NESDIS) found the wave sufficiently well-organized to begin classifying the intensity of the system using the Dvorak (1984) analysis technique.
		The 0800 UTC data included a two-minute wind of 123 kt with a gust to 147 kt at a platform height of about 130 ft. The U.S. National Data Buoy Center used a boundary-layer model to convert the sustained wind to a two-minute wind of 108 kt at 33 ft elevation.
	www.nhc.noaa.gov /1992andrew.html (5837 words)

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Topic: Sea Level Datum of 1929

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