| Identifier |
PrefLabel |
Definition |
Date |
| GGB-8888 |
GEBCO_2019_source_data_type_-8888 |
Land elevation. |
2019-03-15 |
| GGB0 |
GEBCO_2019_source_data_type_0 |
Predicted based on satellite-derived gravity data - depth value is an interpolated value guided by satellite-derived gravity data (from the SRTM15_plus data set, https://topex.ucsd.edu/WWW_html/srtm30_plus.html). |
2019-03-15 |
| GGB10 |
GEBCO_2019_source_data_type_10 |
Singlebeam - depth value collected by a single beam echo-sounder. |
2019-03-15 |
| GGB11 |
GEBCO_2019_source_data_type_11 |
Multibeam - depth value collected by a multibeam echo-sounder. |
2019-03-15 |
| GGB13 |
GEBCO_2019_source_data_type_13 |
Isolated sounding - depth value that is not part of a regular survey or trackline. |
2019-03-15 |
| GGB14 |
GEBCO_2019_source_data_type_14 |
ENC sounding - depth value extracted from an Electronic Navigation Chart (ENC). |
2019-03-15 |
| GGB15 |
GEBCO_2019_source_data_type_15 |
Interpolated based on a computer algorithm - depth value is an interpolated value based on a computer algorithm. |
2019-03-15 |
| GGB16 |
GEBCO_2019_source_data_type_16 |
Digital bathymetric contours from charts - depth value taken from a bathymetric contour data set. |
2019-03-15 |
| GGB17 |
GEBCO_2019_source_data_type_17 |
Digital bathymetric contours from ENCs - depth value taken from bathymetric contours from an Electronic Navigation Chart (ENC). |
2019-03-15 |
| GGB18 |
GEBCO_2019_source_data_type_18 |
Pre-generated grid - depth value is taken from a pre-generated grid that is based on mixed source data types, e.g. single beam, multibeam, interpolation etc. |
2019-03-15 |
| GGB19 |
GEBCO_2019_source_data_type_19 |
Unknown source - depth value from an unknown source. |
2019-03-15 |
| GGB20 |
GEBCO_2019_source_data_type_20 |
Steering points - depth value used to constrain the grid in areas of poor data coverage. |
2019-03-15 |
| GGB21 |
GEBCO_2019_source_data_type_21 |
LiDAR - depth derived from a bathymetric LiDAR sensor. |
2019-03-15 |
| GGB22 |
GEBCO_2019_source_data_type_22 |
Bathymetric sounding - depth value at this location is constrained by bathymetric sounding(s) from the SRTM15_plus data set (https://topex.ucsd.edu/WWW_html/srtm30_plus.html). |
2019-03-15 |
| GGB23 |
GEBCO_2019_source_data_type_23 |
Pre-generated grid - depth value is based on the GEBCO_08 Grid. This data set is a global grid at 30 arc-seconds. It was largely generated from a data base of ship-track soundings with interpolation between soundings guided by satellite-derived gravity data. |
2019-03-26 |
