{
 "layers": [
  {
   "layerId": 0,
   "layerName": "Multibeam Bathymetric Surveys",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "1980 - 1989",
     "url": "2d22eac57c0f48ceda62beef1eaaa7b0",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAT0lEQVQ4jWNhoDJgGTWQYsBCuRGoYKQaeP5/UT8jA5MIJQYxMvy/rs/Y2wY2kImB8fV/BgYRqrlQn7G3jRqGDaFIoSZgoappDKMGMlABAADHNwmV8Kl7YwAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      1989
     ]
    },
    {
     "label": "1990 - 1994",
     "url": "03fdb1e83d04f2117cf40d7f1556379f",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATklEQVQ4jWNhoDJgGTWQYsBCuRGoYKQauPZLfP9/JgYRSgxiZGS8Hsy5oA3iQmbG1wz//4tQzYXBnAvaqGHYEIoUagIWqprGMGogAxUAAMb5CtT3bgKqAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      1994
     ]
    },
    {
     "label": "1995 - 1999",
     "url": "241a6b0797dbaf27a9a6bbe231289249",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATUlEQVQ4jWNhoDJgGTWQYsBCuRGoYKQa2P/Wt/8/I6MIZUb9v14ktLkNbOB/RobXDAwMIlRzYZHQ5jZqGDaEIoWagIWqpjGMGshABQAAbdwLDUXz6vIAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      1999
     ]
    },
    {
     "label": "2000 - 2004",
     "url": "f6b83c5d4042694b4f8d18d7607274d1",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATElEQVQ4jWNhoDJgGTWQYsBCuRGoYKQamHnfsp+BkVGEMqMYr09XONoGcSEj02sGhv8iVHPhdIWjbdQwbAhFCjUBC1VNYxg1kIEKAAB6zAlU2uZ+7AAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      2004
     ]
    },
    {
     "label": "2005 - 2009",
     "url": "8750d6f7cac8b86deab1257b1d303a43",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATklEQVQ4jWNhoDJgGTWQYsBCuRGoYKQa6HJNvf8/A4MIRSYxMl7fq3mjDWzgf0bG1wz//4tQzYV7NW+0UcOwIRQp1AQsVDWNYdRABioAANCrDJMkHPunAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      2009
     ]
    },
    {
     "label": "2010 - 2030",
     "url": "79f0a003fbf2f75dcd157560e74f1929",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAT0lEQVQ4jWNhoDJgGTWQYsBCuRGoYKQayHear5+BgUGEEoMYmRivfzT+2AY2kJGJ8fX/f/9FqObCj8Yf26hh2BCKFGoCFqqaxjBqIAMVAAA6hgvrertwegAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      2030
     ]
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": "Survey Year"
    }
   ]
  }
 ]
}