But if we are interested in viewing details on the Earth’s surface using satellite imagery, clouds or snow can hide what we want to see, and in quantity can be an impediment to using the imagery effectively. We’ve often admired and pondered clouds-those fascinating and dynamic suspensions of tiny water droplets or ice crystals that bring rain to parched land and complement any day by making for colorful sunsets. If you already know which version of the imagery you want to use, you can locate it in the group and create a map directly from the item.Īll of these workflows are detailed below. There is an ArcGIS Online item for every archived version of imagery which you can find in the Wayback Imagery group. Tip: In addition to using the Wayback app, there is a third option. The process of creating a map is exactly the same for both options, the only difference with the second option is that you will add the map to a custom basemap group that your organization will use. Option 2 – Create a map using the Wayback app to include in a custom basemap gallery, allowing use of the Wayback imagery throughout your organization and allowing you to combine current Esri basemaps with your preferred version of World Imagery. This allows you to use the imagery when desired, keeping your organization’s basemap gallery as-is. Option 1 – Create a map using the Wayback app with the previous vintage imagery as the basemap. There are two options if you prefer to use imagery from a previous date. Wayback will allow you to use the version of World Imagery that best suits your needs. For example, the previous imagery may better align with your GIS layers, or may offer fewer clouds or snow cover.
In the vast majority of cases the updated imagery is better, more recent, and is preferred, but there may be exceptions. When and where updates occur, the previous imagery is replaced and is no longer visible. The World Imagery basemap is updated regularly with newer imagery.