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Multibeam Report for Niihau


Ship Name: Ocean Alert
Chief Scientist: Clague, David
Monterey Bay Aquarium Research Institute
Source Organization: Monterey Bay Aquarium Research Institute (MBARI)
Start Date: 1998-02-06
End Date: 1998-02-08

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Multibeam Bathymetry

Cruise Details

Project: MBARI 1998 Mapping Project
Instrument: Simrad EM300

Data Quality

Number of Files: 34
Number of Records: 54600
BATHYMETRY DATA Quantity Percentage
Number of Beams 7365870 100%
Number of Good Beams 6519142 88.5%
Number of Zero Beams 581298 7.89%
Number of Flagged Beams 265430 3.6%

Navigation Totals

Total Time: 82.1158 hours
Total Track Length: 1383.6875 km
Average Speed: 16.85 km/hr (9.0983 knots)

Cruise Bounds

Northern Extent: 22.372969
Southern Extent: 21.73756
Western Extent: -160.51399
Eastern Extent: -159.65956

Limits

Minimum Sonar Depth -6553.6 Maximum Sonar Depth 9.44
Minimum Altitude 0 Maximum Altitude 5160.92
Minimum Depth 108.88 Maximum Depth 4435.39

File Information

Full Resolution Bathymetry as collected (raw): 32

Files File Size Description
mbari_1998_niihau_10_msn.mb57.gz 16.87MB Simrad multibeam processing format
mbari_1998_niihau_10_msnp.mb57.gz 16.81MB Simrad multibeam processing format
mbari_1998_niihau_11_msn.mb57.gz 9.27MB Simrad multibeam processing format
mbari_1998_niihau_11_msnp.mb57.gz 9.25MB Simrad multibeam processing format
mbari_1998_niihau_12_msn.mb57.gz 5.39MB Simrad multibeam processing format
mbari_1998_niihau_12_msnp.mb57.gz 5.37MB Simrad multibeam processing format
mbari_1998_niihau_13_msn.mb57.gz 10.37MB Simrad multibeam processing format
mbari_1998_niihau_13_msnp.mb57.gz 10.36MB Simrad multibeam processing format
mbari_1998_niihau_1_msn.mb57.gz 21.66MB Simrad multibeam processing format
mbari_1998_niihau_1_msnp.mb57.gz 21.48MB Simrad multibeam processing format
mbari_1998_niihau_2_msn.mb57.gz 23.70MB Simrad multibeam processing format
mbari_1998_niihau_2_msnp.mb57.gz 23.55MB Simrad multibeam processing format
mbari_1998_niihau_3_msn.mb57.gz 17.11MB Simrad multibeam processing format
mbari_1998_niihau_3_msnp.mb57.gz 17.07MB Simrad multibeam processing format
mbari_1998_niihau_4_msn.mb57.gz 3.00MB Simrad multibeam processing format
mbari_1998_niihau_4_msnp.mb57.gz 3.01MB Simrad multibeam processing format
mbari_1998_niihau_5_msn.mb57.gz 15.18MB Simrad multibeam processing format
mbari_1998_niihau_5_msnp.mb57.gz 15.15MB Simrad multibeam processing format
mbari_1998_niihau_6_msn.mb57.gz 16.41MB Simrad multibeam processing format
mbari_1998_niihau_6_msnp.mb57.gz 16.38MB Simrad multibeam processing format
mbari_1998_niihau_7_msn.mb57.gz 13.27MB Simrad multibeam processing format
mbari_1998_niihau_7_msnp.mb57.gz 13.21MB Simrad multibeam processing format
mbari_1998_niihau_8_msn.mb57.gz 16.07MB Simrad multibeam processing format
mbari_1998_niihau_8_msnp.mb57.gz 16.00MB Simrad multibeam processing format
mbari_1998_niihau_9_msn.mb57.gz 16.50MB Simrad multibeam processing format
mbari_1998_niihau_9_msnp.mb57.gz 16.43MB Simrad multibeam processing format
mbari_1998_transit_to_kauai_1_msn.mb57.gz 26.99MB Simrad multibeam processing format
mbari_1998_transit_to_kauai_1_msnp.mb57.gz 26.83MB Simrad multibeam processing format
mbari_1998_transit_to_niihau_1_msn.mb57.gz 6.99MB Simrad multibeam processing format
mbari_1998_transit_to_niihau_1_msnp.mb57.gz 7.06MB Simrad multibeam processing format
mbari_1998_transit_to_niihau_2_msn.mb57.gz 24.95MB Simrad multibeam processing format
mbari_1998_transit_to_niihau_2_msnp.mb57.gz 24.58MB Simrad multibeam processing format

Metadata Files: 1

Files File Size Description
Niihau_Multibeam.xml NGDC created ISO metadata

Ancillary Files: 1

Files File Size Description
svp.tar.gz 2.7KB Sound Speed Profiles (SSP or SVP)