When I try to export I am facing the error stating:
"Unknown element type provided: string. Expected: ee.Image, ee.ImageCollection, ee.FeatureCollection, ee.Element or ee.ComputedObject."
var s2 = ee.ImageCollection("COPERNICUS/S2");
var filtered = s2.filter(ee.Filter.lt('CLOUDY_PIXEL_PERCENTAGE', 30))
.filter(ee.Filter.date('2016-01-01', '2016-12-31'))
.filter(ee.Filter.bounds(studyArea))
var image = filtered.median().clip(studyArea);
Map.centerObject(studyArea, 10)
var ndvi = image.normalizedDifference(['B8', 'B4']).rename(['ndvi']);
Map.addLayer(ndvi);
var mndwi = image.normalizedDifference(['B3', 'B11']).rename(['mndwi']);
Map.addLayer(mndwi);
var awei = image.expression(
'4*(GREEN - SWIR1) - (0.25*NIR + 2.75*SWIR2)', {
'GREEN': image.select('B3').multiply(0.0001),
'NIR': image.select('B8').multiply(0.0001),
'SWIR1': image.select('B11').multiply(0.0001),
'SWIR2': image.select('B12').multiply(0.0001),
}).rename('awei');
//Map.addLayer(awei);
// Simple Thresholding
var waterMndwi = mndwi.gt(0)
var waterAwei = awei.gt(0)
Map.addLayer(waterMndwi);
Map.addLayer(waterAwei);
// Combining Multiple Conditions
var waterMultiple = ndvi.lt(0).and(mndwi.gt(0))
// Export the image to Drive
Export.image.toDrive({
image: 'waterMndwi',
description: 'Mndwi',
scale: 30,
region: studyArea
});