The Lagoon - Revision history

Moleski at 12:06, 27 October 2012

2012-10-27T12:06:06Z

← Older revision		Revision as of 12:06, 27 October 2012
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	Nikumaroro is a typical coral atoll island with a lagoon surrounded by a ribbon of coral. The lagoon at Niku is approximately 3 miles long and a mile wide at ~~it's~~ widest point. There are two channels that connect the lagoon with the ocean both on the southwestern side of the island, Tatiman Passage (pronounced Taziman) to the north, and Baureke Passage to the south. Baureke passage is on occasion blocked and dry as we found during the Niku IIII expedition in 2001 (and seen in the satellite photo below), but was flowing in 2007 when NIku V visited the island.		Nikumaroro is a typical coral atoll island with a lagoon surrounded by a ribbon of coral. The lagoon at Niku is approximately 3 miles long and a mile wide at its widest point. There are two channels that connect the lagoon with the ocean both on the southwestern side of the island, Tatiman Passage (pronounced Taziman) to the north, and Baureke Passage to the south. Baureke passage is on occasion blocked and dry as we found during the Niku IIII expedition in 2001 (and seen in the satellite photo below), but was flowing in 2007 when NIku V visited the island.

	The lagoon is generally fairly shallow with an average depth of 15 ft, and a maximum depth of no more than 20 feet. There are coral heads to be found sporadically, and the bottom is generally a deep layer of very fine silt that can be stirred up during periods of windy weather reducing visibility underwater to virtually nil and giving the lagoon a milky quality. The temperature of the water is in the 90° F range. Beyond coral, there are a wide variety of marine animals that live in the lagoon including fish, turtles, crabs, Tridacna and other clams, and sharks (generally juvenile black tip reef sharks up to about 3 ft in length).		The lagoon is generally fairly shallow with an average depth of 15 ft, and a maximum depth of no more than 20 feet. There are coral heads to be found sporadically, and the bottom is generally a deep layer of very fine silt that can be stirred up during periods of windy weather reducing visibility underwater to virtually nil and giving the lagoon a milky quality. The temperature of the water is in the 90° F range. Beyond coral, there are a wide variety of marine animals that live in the lagoon including fish, turtles, crabs, Tridacna and other clams, and sharks (generally juvenile black tip reef sharks up to about 3 ft in length).

Moleski: /* GPS Data and the Start of the NIku GIS Project */

2012-08-22T18:34:51Z

GPS Data and the Start of the NIku GIS Project

← Older revision		Revision as of 18:34, 22 August 2012
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	During Niku IIII in 2001, TIGHAR dive team members Van Hunn, Walt Holm, and Andrew McKenna surveyed the NW end of the lagoon from the passage inlet delta of sand to the NW corner by using a 16 ft aluminum boat with outboard motor to pull two divers on manta boards. The two divers would skim the bottom of the lagoon searching for any unusual objects to be found. The survey utilized a series of markers and GPS waypoints to systematically cover the entire NW end of the Lagoon. See the tan dots in the overlay of the sat photo below.		During Niku IIII in 2001, TIGHAR dive team members Van Hunn, Walt Holm, and Andrew McKenna surveyed the NW end of the lagoon from the passage inlet delta of sand to the NW corner by using a 16 ft aluminum boat with outboard motor to pull two divers on manta boards. The two divers would skim the bottom of the lagoon searching for any unusual objects to be found. The survey utilized a series of markers and GPS waypoints to systematically cover the entire NW end of the Lagoon. See the tan dots in the overlay of the sat photo below.

			http://tighar.org/aw/mediawiki/images/d/d1/GIS_Niku_GPS_Mstr-1.png


	http://tighar.org/aw/~~mediawiki~~/~~images~~/d/d1/~~GIS_Niku_GPS_Mstr-1~~.~~png~~		== Links ==
			* [http://tighar.org/smf/index.php/topic,726.msg14450.html#msg14450 Andrew McKenna, "re: The Lagoon as a Collection Basin."]
			* [http://tighar.org/smf/index.php/topic,726.msg15258.html#msg15258 Walt Holm, "re: The Lagoon as a Collection Basin."]

	[[Category:Nikumaroro\|Lagoon]]		[[Category:Nikumaroro\|Lagoon]]
	[[Category:Maps\|Lagoon]]		[[Category:Maps\|Lagoon]]
	[[Category:Archaeology of Nikumaroro\|Lagoon]]		[[Category:Archaeology of Nikumaroro\|Lagoon]]
	[[Category:Geology of Nikumaroro]]		[[Category:Geology of Nikumaroro]]

Moleski at 21:14, 11 December 2011

2011-12-11T21:14:42Z

← Older revision		Revision as of 21:14, 11 December 2011
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	[[Category:Maps\|Lagoon]]		[[Category:Maps\|Lagoon]]
	[[Category:Archaeology of Nikumaroro\|Lagoon]]		[[Category:Archaeology of Nikumaroro\|Lagoon]]
			[[Category:Geology of Nikumaroro]]

Moleski: /* GPS Data and the Start of the NIku GIS Project */

2010-12-12T17:20:41Z

GPS Data and the Start of the NIku GIS Project

← Older revision		Revision as of 17:20, 12 December 2010
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	[[Category:Nikumaroro\|Lagoon]]		[[Category:Nikumaroro\|Lagoon]]
	[[Category:Maps\|Lagoon]]		[[Category:Maps\|Lagoon]]
	[[Category:Archaeology of Nikumaroro]]		[[Category:Archaeology of Nikumaroro\|Lagoon]]

Moleski: /* GPS Data and the Start of the NIku GIS Project */

2010-12-12T16:40:01Z

GPS Data and the Start of the NIku GIS Project

← Older revision		Revision as of 16:40, 12 December 2010
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	[[Category:Nikumaroro\|Lagoon]]		[[Category:Nikumaroro\|Lagoon]]
	[[Category:Maps\|Lagoon]]		[[Category:Maps\|Lagoon]]
			[[Category:Archaeology of Nikumaroro]]

Rickerjones at 15:40, 12 June 2010

2010-06-12T15:40:55Z

← Older revision		Revision as of 15:40, 12 June 2010
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	http://tighar.org/aw/mediawiki/images/d/d1/GIS_Niku_GPS_Mstr-1.png		http://tighar.org/aw/mediawiki/images/d/d1/GIS_Niku_GPS_Mstr-1.png
	[[Category:Nikumaroro]]		[[Category:Nikumaroro\|Lagoon]]
	[[Category:Maps\|Lagoon]]		[[Category:Maps\|Lagoon]]

Rickerjones at 15:20, 12 June 2010

2010-06-12T15:20:52Z

← Older revision		Revision as of 15:20, 12 June 2010
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	http://tighar.org/aw/mediawiki/images/d/d1/GIS_Niku_GPS_Mstr-1.png		http://tighar.org/aw/mediawiki/images/d/d1/GIS_Niku_GPS_Mstr-1.png
	[[Category:Nikumaroro]]		[[Category:Nikumaroro]]
	[[Category:Maps\|~~Nikumaroro~~]]		[[Category:Maps\|Lagoon]]

Rickerjones at 15:18, 12 June 2010

2010-06-12T15:18:41Z

← Older revision		Revision as of 15:18, 12 June 2010
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	http://tighar.org/aw/mediawiki/images/d/d1/GIS_Niku_GPS_Mstr-1.png		http://tighar.org/aw/mediawiki/images/d/d1/GIS_Niku_GPS_Mstr-1.png
	[[Category:Nikumaroro]]		[[Category:Nikumaroro]]
	[[Category:Maps]]		[[Category:Maps\|Nikumaroro]]

Rickerjones: Add catagory: Nikumaroro, Maps

2010-06-11T21:03:10Z

Add catagory: Nikumaroro, Maps

← Older revision		Revision as of 21:03, 11 June 2010
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	http://tighar.org/aw/mediawiki/images/d/d1/GIS_Niku_GPS_Mstr-1.png		http://tighar.org/aw/mediawiki/images/d/d1/GIS_Niku_GPS_Mstr-1.png
			[[Category:Nikumaroro]]
			[[Category:Maps]]

McKenna at 05:03, 20 September 2009

2009-09-20T05:03:44Z

← Older revision		Revision as of 05:03, 20 September 2009
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	Nikumaroro is a typical coral atoll island with a lagoon surrounded by a ribbon of coral. The lagoon at Niku is approximately 3 miles long and a mile wide at it's widest point. There are two channels that connect the lagoon with the ocean both on the southwestern side of the island, Tatiman Passage (pronounced Taziman) to the north, and Baureke Passage to the south. Baureke passage is on occasion blocked and dry as we found during the Niku IIII expedition in 2001 (and seen in the satellite photo below), but was flowing in 2007 when NIku V visited the island.		Nikumaroro is a typical coral atoll island with a lagoon surrounded by a ribbon of coral. The lagoon at Niku is approximately 3 miles long and a mile wide at it's widest point. There are two channels that connect the lagoon with the ocean both on the southwestern side of the island, Tatiman Passage (pronounced Taziman) to the north, and Baureke Passage to the south. Baureke passage is on occasion blocked and dry as we found during the Niku IIII expedition in 2001 (and seen in the satellite photo below), but was flowing in 2007 when NIku V visited the island.

	The lagoon is generally fairly shallow with a maximum depth of no more than 20 feet. There are coral heads to be found sporadically, and the bottom is generally a deep layer of very fine silt that can be stirred up during periods of windy weather reducing visibility underwater to virtually nil. The temperature of the water is in the 90° F range. Beyond coral, there are a wide variety of marine animals that live in the lagoon including fish, turtles, crabs, Tridacna and other clams, and sharks (generally juvenile black tip reef sharks up to about 3 ft in length).		The lagoon is generally fairly shallow with an average depth of 15 ft, and a maximum depth of no more than 20 feet. There are coral heads to be found sporadically, and the bottom is generally a deep layer of very fine silt that can be stirred up during periods of windy weather reducing visibility underwater to virtually nil and giving the lagoon a milky quality. The temperature of the water is in the 90° F range. Beyond coral, there are a wide variety of marine animals that live in the lagoon including fish, turtles, crabs, Tridacna and other clams, and sharks (generally juvenile black tip reef sharks up to about 3 ft in length).

	The lagoon can best be understood by looking at the 2001 satellite photo of Nikumaroro.		The lagoon can best be understood by looking at the 2001 satellite photo of Nikumaroro.