| Project: | Tonga Trench |
| Instrument: | Kongsberg EM124 |
| All Bathy/Relief | Coastal | DEM Portal | Fishing | Global | Lakes | Multibeam | NOS |
| Ship Name: | Pressure Drop |
| Chief Scientist: | Bongiovanni, Cassie Caladan Oceanic LLC |
| Source Organization: | Caladan Oceanic LLC |
| Start Date: | 2019-05-28 |
| End Date: | 2019-06-06 |
Multibeam Bathymetry

| Project: | Tonga Trench |
| Instrument: | Kongsberg EM124 |

| Number of Files: | 203 |
| Number of Records: | 15336 |
| BATHYMETRY DATA | Quantity | Percentage |
|---|---|---|
| Number of Beams | 3926016 | 100% |
| Number of Good Beams | 3531988 | 89.96% |
| Number of Zero Beams | 0 | 0% |
| Number of Flagged Beams | 394028 | 10.04% |

| Total Time: | 88.4652 hours |
| Total Track Length: | 1387.011 km |
| Average Speed: | 15.679 km/hr (8.4660 knots) |

| Northern Extent: | -20.411661 |
| Southern Extent: | -25.400923 |
| Western Extent: | -175.19939 |
| Eastern Extent: | -173.20369 |

| Minimum Sonar Depth | 0 | Maximum Sonar Depth | 0.56 |
| Minimum Altitude | 1.36 | Maximum Altitude | 10828.8877 |
| Minimum Depth | 6279.873 | Maximum Depth | 10862.8154 |
File Information


| Files | File Size | Description |
|---|---|---|
| 95Uncert.xyz.gz | 34.37MB | xyz grid file provided by the originator |
| 95Uncert_Tonga_CUBE_200m.xyz.gz | 9.53MB | xyz grid file provided by the originator |
| Bin_Tonga_CUBE_200m.xyz.gz | 9.35MB | xyz grid file provided by the originator |
| CUBEUncert_Tonga_CUBE_200m.xyz.gz | 9.80MB | xyz grid file provided by the originator |
| CubeUncert.xyz.gz | 67.62MB | xyz grid file provided by the originator |
| TongaTrench_Mosaic_75m.tiff.gz | 7.05MB | GeoTIFF survey image |
| Tonga_CUBE_200m.bag.gz | 25.05MB | Bathymetric Attributed Grid |
| Tonga_CUBE_200m.bag.xml.gz | 16.1KB | Product Specific Metadata |
| Tonga_CUBE_200m.xyz.gz | 13.75MB | xyz grid file provided by the originator |
| Tonga_CUBE_75m.tif.gz | 11.62MB | GeoTIFF survey image |
| Tonga_CUBE_75m_06072019.bag.gz | 171.46MB | Bathymetric Attributed Grid |
| Tonga_CUBE_75m_06072019.bag.xml.gz | 16.1KB | Product Specific Metadata |

| Files | File Size | Description |
|---|---|---|
| DSSVPD_Tonga_DAPR.pdf | 4.64MB | PDF metadata file |
| DSSVPD_Tonga_DR.pdf | 2.07MB | PDF metadata file |
| DSSVPD_Tonga_Log.pdf | 64.3KB | PDF metadata file |
| DSSVPD_Tonga_Log2.pdf | 79.1KB | PDF metadata file |
| PD19TT02.txt | 0.8KB | Informal metadata text |

| Files | File Size | Description |
|---|---|---|
| qpd_projects.tar.gz | 258.78MB | Ancillary Data Files |
| qps_projects.tar.gz | 2303.64MB | Ancillary Data Files |
| soundspeed_processed.tar.gz | 40.3KB | Ancillary Data Files |
| soundspeed_raw.tar.gz | 1.70MB | Ancillary Data Files |