{"KIND":"IMAGE","BAND_COUNT":1,"HAS_TABLE":false,"HAS_XFORM":false,"AREA_OR_POINT":"Area","crs#epsg_code":"EPSG:4326","crs#grid_mapping_name":"latitude_longitude","crs#inverse_flattening":"298.257223563","crs#semi_major_axis":"6378137","DataType":"Thematic","lat#axis":"Y","lat#long_name":"latitude","lat#sdn_parameter_name":"Latitude north","lat#sdn_parameter_urn":"SDN:P01::ALATZZ01","lat#sdn_uom_name":"Degrees north","lat#sdn_uom_urn":"SDN:P06::DEGN","lat#standard_name":"latitude","lat#units":"degrees_north","lon#axis":"X","lon#long_name":"longitude","lon#sdn_parameter_name":"Longitude east","lon#sdn_parameter_urn":"SDN:P01::ALONZZ01","lon#sdn_uom_name":"Degrees east","lon#sdn_uom_urn":"SDN:P06::DEGE","lon#standard_name":"longitude","lon#units":"degrees_east","NC_GLOBAL#comment":"dataType IDentifier definitions\\n0 - Land\\n10 Singlebeam - depth value collected by a single beam echo-sounder\\n11 Multibeam - depth value collected by a multibeam echo-sounder\\n12 Seismic - depth value colleced by seismic methods\\n13 Isolated sounding - depth value that is not part of a regular survey or trackline\\n14 ENC sounding - depth value extracted from an Electronic Navigation Chart (ENC)\\n15 Lidar - depth derived from a bathymetric lidar sensor\\n16 Optical - Depth measured by optical light sensor\\n17 Combination of direct measurement methods\\nIn-direct Methods\\n40 Predicted based on satellite-derived gravity data - depth value is an interpolated value guided by satellite-derived gravity data\\n41 Interpolated based on a computer algorithm - depth value is an interpolated value based on a computer algorithm (e.g. Generic Mapping Tools)\\n42 Digital bathymetric contours from charts - depth value taken from a bathymetric contour data set\\n43 Digital bathymetric contours from ENCs - depth value taken from bathymetric contours from an Electronic Navigation Chart (ENC)\\n44 Bathymetric sounding - depth value at this location is constrained by bathymetric sounding(s) within a gridded data set where interpolation between sounding points is guided by satellite-derived gravity data\\n45 Predicted based on airborne (helicopter/flight)-derived gravity data\\n46 Depth estimated by calculating the draft of a grounded iceberg using satellite-derived freebord measurement\\nUnknown\\n47 Depth derived from grounded Argo float data70 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.\\n71 Unknown source - depth value from an unknown source\\n72 Steering points - depth value used to constrain the grid in areas of poor data coverage\\n","NC_GLOBAL#Conventions":"CF-1.6, ACDD-1.3","NC_GLOBAL#creator_email":"gdacc@seabed2030.org","NC_GLOBAL#creator_name":"GEBCO through the Nippon Foundation-GEBCO Seabed 2030 Project","NC_GLOBAL#creator_type":"International organisation","NC_GLOBAL#creator_url":"https://www.gebco.net","NC_GLOBAL#date_created":"2025-07-18","NC_GLOBAL#geospatial_bounds":"{-180,-90,180,90}","NC_GLOBAL#geospatial_bounds_crs":"WGS84","NC_GLOBAL#geospatial_bounds_vertical_crs":"EPSG:5831","NC_GLOBAL#geospatial_lat_max":"90","NC_GLOBAL#geospatial_lat_min":"-90","NC_GLOBAL#geospatial_lat_resolution":"0.004166666666666667","NC_GLOBAL#geospatial_lat_units":"degrees_north","NC_GLOBAL#geospatial_lon_max":"180","NC_GLOBAL#geospatial_lon_min":"-180","NC_GLOBAL#geospatial_lon_resolution":"0.004166666666666667","NC_GLOBAL#geospatial_lon_units":"degrees_east","NC_GLOBAL#history":"Information on the development of the data set and the source data sets included in the grid can be found in the data set documentation available from https://www.gebco.net","NC_GLOBAL#id":"DOI: 10.5285/37c52e96-24ea-67ce-e063-7086abc05f29","NC_GLOBAL#identifier_product_doi":"DOI: 10.5285/37c52e96-24ea-67ce-e063-7086abc05f29","NC_GLOBAL#institution":"On behalf of the General Bathymetric Chart of the Oceans (GEBCO), the data are held at the British Oceanographic Data Centre (BODC).","NC_GLOBAL#keywords":"BATHYMETRY/SEAFLOOR TOPOGRAPHY, DIGITAL ELEVATION/DIGITAL TERRAIN MODELS","NC_GLOBAL#license":"The GEBCO Grid is placed in the public domain and may be used free of charge. Use of the GEBCO Grid indicates that the user accepts the conditions of use and disclaimer information: https://www.gebco.net/","NC_GLOBAL#naming_authority":"https://dx.doi.org","NC_GLOBAL#node_offset":"1","NC_GLOBAL#project":"Nippon Foundation - GEBCO Seabed2030 Project","NC_GLOBAL#references":"DOI: 10.5285/37c52e96-24ea-67ce-e063-7086abc05f29","NC_GLOBAL#source":"The GEBCO_2025 Grid is the 2025 release of the  global bathymetric product published by the General Bathymetric Chart of the Oceans (GEBCO) and has been developed through the Nippon Foundation-GEBCO Seabed 2030 Project. This is a collaborative project between the Nippon Foundation of Japan and GEBCO. The Seabed 2030 Project aims to bring together all available bathymetric data to produce the definitive map of the world ocean floor and make it available to all.","NC_GLOBAL#summary":"The GEBCO_2025 Grid is a continuous, global terrain model for ocean and land with a spatial resolution of 15 arc seconds.The grid uses as a base-map Version 2.7 of the SRTM15+ data set (Tozer et al, 2019). This data set is a fusion of land topography with measured and estimated seafloor topography. It is augmented with gridded bathymetric data sets developed as part of the Nippon Foundation-GEBCO Seabed 2030 Project.","NC_GLOBAL#title":"The GEBCO_2025 Grid Type Identifier","tid#flag_meanings":"Land Singlebeam Multibeam Seismic Isolated_sounding ENC_sounding Lidar Optical Combined predicted_altimetry interpolated contour_charts contour_ENC bathymetric_sounding predicted_airborne iceberg_groundinggrounded_Argo_float_derived pre-generated_grid unknown steering_point","tid#flag_values":"{0,10,11,12,13,14,15,16,17,40,41,42,43,44,45,46,47,70,71,72}","tid#grid_mapping":"crs","tid#long_name":"GEBCO Type Identifier","tid#sdn_parameter_name":"Source identifer of GEBCO grid cell data","tid#sdn_parameter_urn":"SDN:P01::GEBCOSRC","tid#sdn_uom_name":"Dimensionless","tid#sdn_uom_urn":"SDN:P06:UUUU","tid#units":"1","BandProperties":[{"KIND":"BAND","HAS_TABLE":0,"flag_meanings":"Land Singlebeam Multibeam Seismic Isolated_sounding ENC_sounding Lidar Optical Combined predicted_altimetry interpolated contour_charts contour_ENC bathymetric_sounding predicted_airborne iceberg_groundinggrounded_Argo_float_derived pre-generated_grid unknown steering_point","flag_values":"{0,10,11,12,13,14,15,16,17,40,41,42,43,44,45,46,47,70,71,72}","grid_mapping":"crs","long_name":"GEBCO Type Identifier","NETCDF_VARNAME":"tid","sdn_parameter_name":"Source identifer of GEBCO grid cell data","sdn_parameter_urn":"SDN:P01::GEBCOSRC","sdn_uom_name":"Dimensionless","sdn_uom_urn":"SDN:P06:UUUU","STATISTICS_COUNT":"3732480000.000000","STATISTICS_COVARIANCES":"497.6553218343473","STATISTICS_MAXIMUM":"72","STATISTICS_MEAN":"28.452206775335","STATISTICS_MEDIAN":"40.000000","STATISTICS_MINIMUM":"0","STATISTICS_SKIPFACTORX":"1","STATISTICS_SKIPFACTORY":"1","STATISTICS_STDDEV":"22.308189568729","units":"1","SourceBandIndex":0}]}