| Project: | Mariana 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: | 2019-04-19 |
| End Date: | 2019-05-07 |
Multibeam Bathymetry

| Project: | Mariana Trench |
| Instrument: | Kongsberg EM124 |

| Number of Files: | 395 |
| Number of Records: | 39755 |
| BATHYMETRY DATA | Quantity | Percentage |
|---|---|---|
| Number of Beams | 10177280 | 100% |
| Number of Good Beams | 9341906 | 91.79% |
| Number of Zero Beams | 0 | 0% |
| Number of Flagged Beams | 835374 | 8.21% |

| Total Time: | 172.9891 hours |
| Total Track Length: | 2893.1054 km |
| Average Speed: | 16.724 km/hr (9.0302 knots) |

| Northern Extent: | 12.961383 |
| Southern Extent: | 10.799719 |
| Western Extent: | 139.67299 |
| Eastern Extent: | 146.15881 |

| Minimum Sonar Depth | 0 | Maximum Sonar Depth | 0 |
| Minimum Altitude | 2.84 | Maximum Altitude | 10954.2197 |
| Minimum Depth | 2101.7439 | Maximum Depth | 12606.0596 |
File Information


| Files | File Size | Description |
|---|---|---|
| Challenger_75m.xyz.gz | 148.95MB | xyz grid file provided by the originator |
| Challenger_CUBE_75m.bag.gz | 258.44MB | Bathymetric Attributed Grid |
| Challenger_CUBE_75m.bag.xml.gz | 16.2KB | Product Specific Metadata |
| Challenger_CUBE_75m.tif.gz | 20.59MB | GeoTIFF survey image |
| Mariana_100m_bksctr.tiff.gz | 5.94MB | GeoTIFF survey image |

| Files | File Size | Description |
|---|---|---|
| DSSVPD_Mariana_DAPR.pdf | 4.65MB | PDF metadata file |
| DSSVPD_Mariana_DR.pdf | 3.87MB | PDF metadata file |
| PD19MT02.txt | 0.9KB | Informal metadata text |

| Files | File Size | Description |
|---|---|---|
| qpd_projects.tar.gz | 293.16MB | Ancillary Data Files |
| qps_projects.tar.gz | 27573.76MB | Ancillary Data Files |
| soundspeed_processed.tar.gz | 20.7KB | Ancillary Data Files |
| soundspeed_raw.tar.gz | 34.9KB | Ancillary Data Files |