{
 "layers": [
  {
   "layerId": 0,
   "layerName": "GEBCO_2023 TID",
   "layerType": "Raster Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "Singlebeam",
     "url": "c9e9f7e25e4813ffb1c99b99c253f205",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAP0lEQVQ4je3UsQ0AIBBCUS5hRad0yLPShBrs7g/wCgqIcPwG9kI7UG2UgKk4oB19QhvQjwFDGtDvbXj/LAamOkOhA/6O0LZSAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    },
    {
     "label": "Multibeam",
     "url": "b95600f6b139acf3b14340f719d02a86",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAQElEQVQ4jWNhoDJgoZmBSrtY/lNi0D23P4woBlILsIwaSDFgodwIVDBqIOWAhQpmoIBRAykH8DCElWdUM5BaAABqvAZyTCCitgAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    },
    {
     "label": "Seismic",
     "url": "98ed4464ed9e05e25ceedd92ea8e509e",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAQElEQVQ4jWNhoDJgoZmBJ0M5/lNikPnqH4woBlILsIwaSDFgodwIVDBqIOWAhQpmoIBRAykH8DCElWdUM5BaAABSCQYsxlC3QQAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    },
    {
     "label": "Isolated sounding",
     "url": "b182f91dcce8e287d7d41d4d109d69c3",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAQElEQVQ4jWNhoDJgoZmBBx+f/E+JQfay5owoBlILsIwaSDFgodwIVDBqIOWAhQpmoIBRAykH8DCElWdUM5BaAADiWwTlcos/lAAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    },
    {
     "label": "ENC sounding",
     "url": "f26f75aecc278004b7db60157d5c1997",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAQElEQVQ4jWNhoDJgoZmBkfy//lNi0PKPbIwoBlILsIwaSDFgodwIVDBqIOWAhQpmoIBRAykH8DCElWdUM5BaAAA+ywXwDMQiugAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    },
    {
     "label": "Lidar",
     "url": "57a3423494a9a90992d5aa3255d0a364",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAQElEQVQ4jWNhoDJgoZmB8yQ9/lNiUNLzHYwoBlILsIwaSDFgodwIVDBqIOWAhQpmoIBRAykH8DCElWdUM5BaAABf3AZTO8N8SwAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    },
    {
     "label": "Depth measured by optical light sensor",
     "url": "d9214538e281f663288de523548ac03f",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAQElEQVQ4jWNhoDJgoZmBZv4i/ykx6NTGN4woBlILsIwaSDFgodwIVDBqIOWAhQpmoIBRAykH8DCElWdUM5BaAACDIAa5OYCaGgAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    },
    {
     "label": "Combination of direct measurement methods",
     "url": "dc701eec9df3dbb455bd660e9bab6c49",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAQElEQVQ4jWNhoDJgoZmBN09K/KfEIHXzF4woBlILsIwaSDFgodwIVDBqIOWAhQpmoIBRAykH8DCElWdUM5BaAAAfKQWY0E/x+wAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    },
    {
     "label": "Predicted based on satellite-derived gravity data",
     "url": "0b6987fdaaa00eb26ef16d8996e267d8",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAP0lEQVQ4je3UsQ0AIBBCUU2Yj2FZUKszuRrs7g/wCgqwwuEbKOk4EMndwFQY0A4+0RvQDwGjNaDf27D+LAamugBKBTwIK4i+AAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "1",
     "height": 20,
     "width": 20
    },
    {
     "label": "Interpolated (computer algorithm/GMT)",
     "url": "3fb08359149f8a4ac1013d72d9ac12de",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAP0lEQVQ4je3UsQ0AIBBCUU0YlpHYVqszuRrs7g/wCgqwwuEbSPI4kKTdwFQY0A4+0RvQDwGjNaDf27D+LAamukyaBhoAVSbTAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "1",
     "height": 20,
     "width": 20
    },
    {
     "label": "Digitized contour",
     "url": "fe243027af51cde3c94fe7fb39e7f5da",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAQElEQVQ4jWNhoDJgoZmBn5be/k+JQXzRqowoBlILsIwaSDFgodwIVDBqIOWAhQpmoIBRAykH8DCElWdUM5BaAADghATgN/rE9AAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "1",
     "height": 20,
     "width": 20
    },
    {
     "label": "Bathymetric sounding within gridded dataset",
     "url": "dfafe873902b83dc5ded69e5e0041407",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAQElEQVQ4jWNhoDJgoZmBG6qi/1NiUEDbUkYUA6kFWEYNpBiwUG4EKhg1kHLAQgUzUMCogZQDeBjCyjOqGUgtAAAxzQXNK4OQPQAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "1",
     "height": 20,
     "width": 20
    },
    {
     "label": "Pre-generated grid",
     "url": "ea5313947f536f6ca5049fd3043a5059",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAQElEQVQ4jWNhoDJgoZmBmdeq/1Ni0HStVkYUA6kFWEYNpBiwUG4EKhg1kHLAQgUzUMCogZQDeBjCyjOqGUgtAAAf/AWY6b3upAAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "2",
     "height": 20,
     "width": 20
    },
    {
     "label": "Unknown source",
     "url": "1b2be97c153ff30a4dd6959e2f4486fa",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAQElEQVQ4jWNhoDJgoZmB0qzt/ykx6OnvSkYUA6kFWEYNpBiwUG4EKhg1kHLAQgUzUMCogZQDeBjCyjOqGUgtAAB+3garjuT+TAAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "2",
     "height": 20,
     "width": 20
    },
    {
     "label": "Steering points",
     "url": "3529b49e8723dd4f6d1a01701fd8e191",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAQElEQVQ4jWNhoDJgoZmBfO2Z/ykx6FPldEYUA6kFWEYNpBiwUG4EKhg1kHLAQgUzUMCogZQDeBjCyjOqGUgtAABg5QZUbCwSQQAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "2",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": "Direct Measurements"
    },
    {
     "id": "1",
     "heading": "Indirect Measurements"
    },
    {
     "id": "2",
     "heading": "Unknown"
    }
   ]
  }
 ]
}