Cloudy satellite imagery is hidden by default in the timeline because the biomass layers can't be applied to them, and therefore Variable N-Rate Application maps can't be created with such imagery.
Tip: For some crops, where the last cloud-free satellite image is more than five days old, a calculation option is displayed below the map to extrapolate a current cloud-free satellite image. Click Calculate to start the extrapolation. Read more about growth estimation here. [add to all new VRA articles for countries with growth estimation feature]
You can view cloudy satellite images and check whether they're actually cloudy or not as follows:
- Web: Click Show cloudy days in the timeline below the map on the field page. / Mobile: Click on the cloud icon below the map on the field page.
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All satellite images will be displayed in the timeline regardless of cloud cover, indicating cloudy images with a cloud symbol.
- Web: Click Hide cloudy days to hide the cloudy images again. / Mobile: Click on the cloud icon to hide the cloudy images again.
- Select a satellite image with the desired date to view it. A biomass map generated from a cloudy satellite image will look like the image below.
- Web: Click on the map layer tile in the bottom right corner of the map and select Field view to view the satellite image taken on the selected date. / Mobile: Click on the map layer dropdown below the map and select Field view to view the satellite image taken on the selected date.
- Check if the image is indeed cloudy or if it's actually cloud-free. The image must be clear of cloud cover and look similar to the image below. Such images can now be used to create Variable N-Rate Application maps, even though they've been marked as cloudy.
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