0

I have run a script to produce a land use classification clipped to my study site using google earth engine. However, when i export the classified image and open it in ArcGIS, the image is cut off at the bottom. Could someone kindly assist.

Below is an example of what I am talking about. The link to my script is also available below.

enter image description here

Script : https://code.earthengine.google.com/94fcd072ee8a9cbf06bf6142e98fe156

1

The reason this happened is because of how the Export.image process works. Paraphrasing the documentation provided by Earth Engine which states: "If no region is specified for export, the region defaults to the viewport at the time of invocation." Basically, you were only viewing part of the image when exporting and it cut off the bottom.

Generally, it is good practice to provide the region parameters when exporting images to avoid this problem. Here is an your example that exports the full image (starting at line 128):

///////////EXPORT  CLASSIFIED IMAGE//////////////

var exportRegion = studysite.geometry().bounds()

Export.image.toDrive({
   image: composite,
   description: 'LU',
   folder: 'GEE data',
   scale: 30,
   region: exportRegion,
   fileFormat: 'GeoTIFF'
 });

Notice that the exportRegion variable is extracted from the study area you provided and then passed as a parameter in the export task. Here is the full working link.

| improve this answer | |

Not the answer you're looking for? Browse other questions tagged or ask your own question.