The data types supported by netCDF are character, byte, short, long, float, and double. These data types are maintained in the netCDF raster layer, feature layer, or table created from a netCDF file.
According to the CF conventions, variables representing time must always explicitly include the units attribute. The units attribute is a string value formatted as per the recommendations in the Udunits package. If a variable has one of the acceptable units for time, the data is represented as a date in ArcGIS.
The following table shows the netCDF data types and corresponding Esri field types.
| NetCDF data type | ESRI field type | 
|---|---|
character  | esriFieldTypeString  | 
byte  | esriFieldTypeSmallInteger  | 
short  | esriFieldTypeSmallInteger  | 
long  | esriFieldTypeInteger  | 
float  | esriFieldTypeSingle  | 
double  | esriFieldTypeDouble  | 
data with time units  | esriFieldTypeDate  |