6-3. Temporal control with manual timestamps

Attach timestamps to your Above Ground Biomass layer (ABG) datasets by hand.

1. Edit the AGB layer card. Scroll down to the Controls section, toggle Temporal control on and set the dropdown to Years. Save and exit.
2. On the Datasets tab, edit the AGB dataset. A timestamp field is now available. Enter the date matching the data — a full date like 2023-01-01 is required, but with the granularity set to Years the GE will show it simply as 2023. Save and return to the layer.
3. Add another dataset via Direct connection → COG and paste in this URL:

https://eoresults.esa.int/d/FCM-AGB-100m/2021/01/01/FCM-AGB-100m-2021/FCM_Europe_demo_2021_AGB.tif

Set the timestamp to 2021-01-01 and save.

1. Optionally, open the layer's JSON editor and confirm that each dataset now has a timestamp field.

2. Preview and use the temporal control to step between years. The changes are subtle but visible if you look closely — the year shown in the temporal control updates and the layer values change to match the selected timestamp.