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- var ROI = ee.Geometry.Point([141.041807, -34.033391]);
- var kulkurna_A = ee.Geometry.Polygon([
- [
- [141.045513, -34.031637], [141.045252, -34.031597], [141.045002, -34.031647],
- [141.044686, -34.031915], [141.044520, -34.032018], [141.040777, -34.035606],
- [141.040349, -34.036386], [141.041069, -34.036233], [141.041372, -34.035775],
- [141.042721, -34.034827], [141.043463, -34.034567], [141.045337, -34.031958]
- ]
- ]);
- Map.addLayer(kulkurna_A, {color: 'blue'}, 'Kulkurna_A');
- var kulkurna_B = ee.Geometry.Polygon([
- [
- [141.041761, -34.031699], [141.041590, -34.031794], [141.039482, -34.033245],
- [141.038768, -34.034018], [141.039511, -34.035584], [141.039796, -34.034948],
- [141.039535, -34.033698], [141.040783, -34.032723], [141.041335, -34.032393],
- [141.041793, -34.031935]
- ]
- ]);
- Map.addLayer(kulkurna_B, {color: 'red'}, 'Kulkurna_B');
- //Center the Map
- Map.setCenter(141.041807, -34.033391, 15);
- var ens = [
- ee.Feature(kulkurna_A, {label : 'Kulkurna A'}),
- ee.Feature(kulkurna_B, {label : 'Kulkurna B'})
- ];
- var collection = ee.FeatureCollection(ens);
- //print(collection); //Un comment to see values in console
- // NDVI: NIR B5 and RED B4
- var addNDVI = function(L8) {
- var nir = L8.select('B5');
- var red = L8.select('B4');
- var ndvi = nir.subtract(red).divide(nir.add(red)).rename('NDVI');
- return L8.addBands(ndvi);
- };
- // Apply the cloud mask and NDVI function to Landsat 8 imagery and print the chart
- var l8 = ee.ImageCollection("LANDSAT/LC08/C01/T1_RT_TOA")
- .filter(ee.Filter.calendarRange(2013,2019,'year'))
- .filter(ee.Filter.calendarRange(1,12,'month'))
- .filterBounds(ROI)
- //Filter the WRS Row to 84 to prevent NDVI readings coming in from the overlap of adjacent rows
- //(Landsat.usgs.gov/landsat_acq#convertPathRow)
- .filter(ee.Filter.eq('WRS_ROW',84))
- //Filter the row
- .filter(ee.Filter.eq('WRS_PATH',96))
- .map(addNDVI);
- //------------------------------------------------
- //Start graphing results
- //------------------------------------------------
- // Create an empty panel in which to arrange widgets.
- // The layout is vertical flow by default.
- var panel = ui.Panel({style: {width: '400px'}})
- .add(ui.Label('NDVI Charts'));
- // Define customisation options.
- var options = {
- title: {label: ens},
- hAxis: {title: 'Time'},
- vAxis: {title: 'NDVI'},
- lineWidth: 2,
- pointSize: 3,
- series: {
- 0: {color: 'blue'}, //Colour of Chart
- }};
- //Graph all regions on same chart
- var all_regions_graph = ui.Chart.image.seriesByRegion({
- imageCollection: l8,
- regions: collection,
- band: 'NDVI',
- reducer: ee.Reducer.mean(),
- scale: 30,
- seriesProperty: 'label'
- })
- .setChartType('ScatterChart')
- .setOptions({
- title: 'Kulkurna A & B',
- hAxis: {title: 'Time'},
- vAxis: {title: 'NDVI'},
- lineWidth: 2,
- pointSize: 3,
- });
- //Print graph to User Interface, .set(x, name of graph) where: x = UI vertical position
- panel.widgets().set(2, all_regions_graph);
- //Graph individual region on its own chart
- var kulkurna_A_graph = ui.Chart.image.seriesByRegion({
- imageCollection: l8,
- regions: kulkurna_A,
- band: 'NDVI',
- reducer: ee.Reducer.mean(),
- scale: 30,
- seriesProperty: 'kulkurna_A',
- })
- .setChartType('ScatterChart')
- .setOptions({
- title: 'Kulkurna A',
- hAxis: {title: 'Time'},
- vAxis: {title: 'NDVI'},
- lineWidth: 2,
- pointSize: 3,
- series: {0: {color: 'blue'}},
- });
- //Print graph to User Interface, .set(x, name of graph) where: x = UI vertical position
- panel.widgets().set(3, kulkurna_A_graph);
- //Graph individual region on its own chart
- var kulkurna_B_graph = ui.Chart.image.seriesByRegion({
- imageCollection: l8,
- regions: kulkurna_B,
- band: 'NDVI',
- reducer: ee.Reducer.mean(),
- scale: 30,
- seriesProperty: 'Kulkurna B'
- })
- .setChartType('ScatterChart')
- .setOptions({
- title: 'Kulkurna B',
- hAxis: {title: 'Time'},
- vAxis: {title: 'NDVI'},
- lineWidth: 2,
- pointSize: 3,
- series: {0: {color: 'red'}},
- });
- //Print graph to User Interface, .set(x, name of graph to show) where: x = UI vertical position
- panel.widgets().set(4, kulkurna_B_graph);
- // Add the panel to the ui.root.
- ui.root.add(panel);
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