Welcome to the Earthdata User Forum! Here, subject matter experts from several NASA Distributed Active Archive Centers (DAAC) can discuss general questions, research needs and data applications. Users can query how to access, view and interpret the data.
Due to GEDI being attached to the International Space Station (ISS), GEDI is not in the more common sun-synchronous or polar orbits, meaning that it acquires data at different times of day and on a non-standard schedule. Thus the temporal resolution varies with the varying orbit of the ISS, and is location-dependent. There are a higher frequency of observations as you approach ~51.6 degrees N/S latitude, and decreasing frequency as you approach the equator (with no observations recorded above ~53 degrees N or below ~53 degrees S latitudes). Also, since GEDI is a Lidar sampling mission (with ~25 m shot footprints)--there are no guarantees that a given location will have multiple directly overlapping samples for the entire lifetime of the mission. However, it is possible for certain points on the Earth’s surface to have repeated/revisited points. If you are looking for points that have multiple GEDI observations over the same footprint for your research or application, I would recommend searching areas near ~51.6 degrees N/S latitude, where there are many more GEDI shots acquired due to the orbit of the ISS.