AI-generated Key Takeaways
-
The
mergemethod combines two image collections into a single collection containing all images from both inputs. -
It takes one image collection as an argument (
collection2) and is called on a second (collection1). -
The method returns a new
ImageCollectionobject.
| Usage | Returns |
|---|---|
ImageCollection.
merge
(collection2)
|
ImageCollection |
| Argument | Type | Details |
|---|---|---|
|
this:
collection1
|
ImageCollection | The first collection to merge. |
collection2
|
ImageCollection | The second collection to merge. |
Examples
Code Editor (JavaScript)
// Sentinel-2 surface reflectance image collection. var ic = ee . ImageCollection ( 'COPERNICUS/S2_SR' ); // Filter the images to those that intersect Mount Shasta for 3 months // in 2019 and 2021 (two image collections). var geom = ee . Geometry . Point ( - 122.196 , 41.411 ); var ic2018 = ic . filterBounds ( geom ). filterDate ( '2019-07-01' , '2019-10-01' ); print ( '2018 image collection' , ic2018 ); var ic2021 = ic . filterBounds ( geom ). filterDate ( '2021-07-01' , '2021-10-01' ); print ( '2021 image collection' , ic2021 ); // Merge the two image collections. var icMerged = ic2018 . merge ( ic2021 ); print ( 'Merged image collection' , icMerged );
import ee import geemap.core as geemap
Colab (Python)
# Sentinel-2 surface reflectance image collection. ic = ee . ImageCollection ( 'COPERNICUS/S2_SR' ) # Filter the images to those that intersect Mount Shasta for 3 months # in 2019 and 2021 (two image collections). geom = ee . Geometry . Point ( - 122.196 , 41.411 ) ic2018 = ic . filterBounds ( geom ) . filterDate ( '2019-07-01' , '2019-10-01' ) display ( '2018 image collection:' , ic2018 ) ic2021 = ic . filterBounds ( geom ) . filterDate ( '2021-07-01' , '2021-10-01' ) display ( '2021 image collection:' , ic2021 ) # Merge the two image collections. ic_merged = ic2018 . merge ( ic2021 ) display ( 'Merged image collection:' , ic_merged )
