I want to prepare cultiuated areas using landsat monthly. each 5 to 6 scenes cover my stduy area. I want to know following points:
1- how to dowload my study area's images automatically
2- How to mask clouds
3- How can I correct strips in landsat7?
Below I have attached some documents of GEE about the mentions topics.
https://developers.google.com/earth-engine/tutorial_api_05
https://developers.google.com/earth-engine/exporting
Article Multitemporal Cloud Masking in the Google Earth Engine
Hope You will Enjoy it.
With the Landsat 8 TOA reflectance collection loaded into a variable called l8, you saw that the following code results in a recent-value composite:
var landsat2016 = l8.filterDate('2016-01-01', '2016-12-31'); Map.addLayer(landsat2016, visParams, 'l8 collection');
One of the problems with this composite is that it's full of clouds. Instead of just taking the last pixel in the collection (when you add a collection to the map, Earth Engine implicitly calls mosaic() on it), you can reduce the ImageCollection (Learn more about reducing image collections).
https://developers.google.com/earth-engine/tutorial_api_05
https://developers.google.com/sitemap/earth-engine
https://developers.google.com/earth-engine/tutorial_api_05
For the first two tasks you can use gee_tools functions (https://github.com/gee-community/gee_tools) from Rodrigo E. Principe:
1) Use col2drive (https://github.com/fitoprincipe/geetools-code-editor/blob/master/tools)
var tools = require('users/fitoprincipe/geetools:tools');
var exportfunction = tools.col2drive;
2) Use cloud_masks: (https://github.com/fitoprincipe/geetools-code-editor/blob/master/cloud_masks)
var cloud_masks = require('users/fitoprincipe/geetools:cloud_masks');
var cloud_mask_fun = cloud_masks.landsatTOA();
3) You can use a reducer (https://developers.google.com/earth-engine/ic_reducing)
For examples and more information, visit https://github.com/fitoprincipe/geetools-code-editor/wiki
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