Spatial

Generically, spatial resolution defines the level of detail at which you can resolve the physical features of a dataset. Spatial resolution also limits the achievable level of spatial accuracy for your model. For more information on spatial accuracy, see Spatial Scale & Control. 

Spatial resolution is the pixel’s size representative of the real-world. Spatial resolution is also referred to as Ground Sampling Distance (GSD). For example: an image with a spatial resolution of 2 centimeters has pixels that measure 2cmx2cm in the real world. What is the size of the target feature you are hoping to identify? A rule-of-thumb is to collect data at 3x the spatial resolution of the feature you want to identify.