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How to interpret cell size ArcGIS using raster?
Since the data that you have in WGS 84, this means that the cell size is in degree unit. In order to get the cell size in meter, you need to change the projection of your raster from WGS84 to meter projection such as UTM or any other projections that is meter unit depending of the size of the study area.
What do you mean by resolution of raster data?
In a GIS, you are most often concerned with the spatial resolution of a raster dataset, especially when displaying or comparing raster data with other data types, such as vector. In this case, resolution refers to the cell size (the area covered on the ground and represented by a single cell).
How to choose the correct cell size for a GIS?
Choosing an appropriate cell size is not always simple. You must balance your application’s need for spatial resolution with practical requirements for quick display, processing time, and storage. Essentially, in a GIS, your results will only be as accurate as your least accurate dataset.
How is spatial resolution related to cell size?
Spatial resolution refers to the dimension of the cell size representing the area covered on the ground. Therefore, if the area covered by a cell is 5 x 5 meters, the resolution is 5 meters. The higher the resolution of a raster, the smaller the cell size and, thus, the greater the detail.
What happens when cell size is not specified in ArcMap?
If a numeric cell size value is specified, it will not be projected if the output is in a spatial reference other than that of the input data. In other cases, the input dataset will be projected and the new cell size will be used. Exercise caution when specifying a cell size finer than the input raster datasets.
What is the default cell size in ArcGIS Pro?
The default cell size when a feature dataset is used as input to a tool is the width or height (whichever is shorter) of the extent of the feature dataset, divided by 250. If a numeric cell size value is specified, it will not be projected if the output is in a spatial reference other than that of the input data.
How is the resolution of a raster determined?
Therefore, if the area covered by a cell is 5 x 5 meters, the resolution is 5 meters. The higher the resolution of a raster, the smaller the cell size and, thus, the greater the detail.