Document Title - Geoscience Australia
Document Title - Geoscience Australia
Document Title - Geoscience Australia
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Lord Howe High Resolution Grids<br />
Topographic Data..................................................................................................................... 29<br />
NSW LPMA.................................................................................................................... 29<br />
GA coastline data ............................................................................................................ 29<br />
SRTM data ...................................................................................................................... 29<br />
Other Data ............................................................................................................................... 29<br />
4. Data Processing ........................................................................................ 35<br />
Swath processing...................................................................................................................... 35<br />
Singlebeam echosounder processing........................................................................................ 35<br />
Chart data ................................................................................................................................. 35<br />
LADS data................................................................................................................................ 35<br />
Satellite data processing ........................................................................................................... 35<br />
5. Analysis and QC of Bathymetric Data .......................................................... 36<br />
Fledermaus ............................................................................................................................... 36<br />
ArcMap .................................................................................................................................... 36<br />
Procedure.................................................................................................................................. 36<br />
6. Gridding ................................................................................................... 39<br />
Preliminary considerations....................................................................................................... 39<br />
Gridding process ...................................................................................................................... 40<br />
Lord Howe regional 250 m grid...................................................................................... 41<br />
Lord Howe Island and Ball’s Pyramid plateau 100 m grid ............................................. 43<br />
Lord Howe Island, Ball’s Pyramid and reef 40 m grid ................................................... 44<br />
Lord Howe Island reef 8 m grid ...................................................................................... 45<br />
7. Final Grids ................................................................................................ 47<br />
Bibliography................................................................................................. 49<br />
Appendix 1 ................................................................................................... 51<br />
Multibeam systems................................................................................................................... 51<br />
Multibeam processing .............................................................................................................. 52<br />
Appendix 2 ................................................................................................... 54<br />
Satellite data processing ........................................................................................................... 54<br />
Method ............................................................................................................................ 54<br />
Quality control ................................................................................................................ 54<br />
Validation........................................................................................................................ 54<br />
Appendix 3 ................................................................................................... 56<br />
ANZLIC metadata record......................................................................................................... 56<br />
IV