29 lines
1.1 KiB
JavaScript
29 lines
1.1 KiB
JavaScript
// Metadata of image collections
|
|
|
|
// Load a Landsat 8 ImageCollection for a single path-row.
|
|
var collection = ee.ImageCollection('LANDSAT/LC08/C01/T1_TOA')
|
|
.filter(ee.Filter.eq('WRS_PATH', 44))
|
|
.filter(ee.Filter.eq('WRS_ROW', 34))
|
|
.filterDate('2014-03-01', '2014-08-01');
|
|
print('Collection: ', collection);
|
|
|
|
// Get the number of images.
|
|
var count = collection.size();
|
|
print('Count: ', count);
|
|
|
|
// Get the date range of images in the collection.
|
|
var range = collection.reduceColumns(ee.Reducer.minMax(), ["system:time_start"])
|
|
print('Date range: ', ee.Date(range.get('min')), ee.Date(range.get('max')))
|
|
|
|
// Get statistics for a property of the images in the collection.
|
|
var sunStats = collection.aggregate_stats('SUN_ELEVATION');
|
|
print('Sun elevation statistics: ', sunStats);
|
|
|
|
// Sort by a cloud cover property, get the least cloudy image.
|
|
var image = ee.Image(collection.sort('CLOUD_COVER').first());
|
|
print('Least cloudy image: ', image);
|
|
|
|
// Limit the collection to the 10 most recent images.
|
|
var recent = collection.sort('system:time_start', false).limit(10);
|
|
print('Recent images: ', recent);
|
|
|