TONGA TONGATAPU BATHYMETRY - library.gem.spc.int
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LEGEND
NOTES
LOCATION
GEODETIC INFORMATION
SCALE
PROJECT TITLE
Colour BandingMultibeam Bathymetry
Metres
PACIFIC ISLANDS APPLIED GEOSCIENCE COMMISSIONPrivate Mail Bag, GPO, Suva, Fiji Islands
www.sopac.org
Geodetic datumEllipsoid Projection
Horizontal positioning
WGS84WGS84UTM Zone 1 South
Stand alone GPS
TONGATONGATAPU
BATHYMETRY
Scale 1 : 75 000
A0 Original
SOPAC/EU Project:Reducing Vulnerability of Pacific ACP States
DRAWING TITLE
NOT TO BE USED FOR NAVIGATION
Backdrop is an IKONOS Satellite imageAcquisition date 21 December 2000
Date of SurveyAcquisition systemCollection softwareProcessing softwareData presentationSurvey vessel
Multibeam Bathymetry data by SOPAC/EU:
November to December 2003Reson 8160 Multibeam EchosounderHypack 4.3Hypack 4.3ASurfer 8.03M/V Turagalevu
Water depths have been reduced to chart datum (0.75m below MSL) frompredicted tidal heights using WXtides software (www.wxtide32.com).
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0km 10kmslope angle in degrees
Gradient slope angle generated from the 50 m gridded bathymetry.Red indicates steep slopes, while blue indicates near horizontal seafloor.
Three dimensional perspective image of Tongatapu, looking northwest.Two times vertical exaggeration Shaded relief map of Tongatapu.
Sun illumination from the northwest
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Metres
0km 10km
Drawn by: Jens Kruger and Ashishika Sharma. Report Reference: ER111. Drawing No.: ER111.1
200 Contours are shown at 100 metre intervals.
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