NilReasonType Valid None Data Dictionary Vocabularies Eionet Data Dictionary Inapplicable The data element is not applicable to a specific context. Valid Data Dictionary Vocabularies Eionet Data Dictionary NilReasonType Missing The data value is missing. Valid Data Dictionary Vocabularies Eionet Data Dictionary NilReasonType None The data value is 'none'. Note the distinction with 'inapplicable': in this case, the data element can exist in a given context, but the data value is 'none', which means that none of the available options actually applies. The 'none' value is semantically similar to 'none applied' or 'none applicable'. Valid Data Dictionary Vocabularies Eionet Data Dictionary NilReasonType Other Other data element value not present in the data element domain (e.g. not mappable to any code in the domain codelist). Valid Data Dictionary Vocabularies Eionet Data Dictionary NilReasonType Template The value will be available later. Valid Data Dictionary Vocabularies Eionet Data Dictionary NilReasonType Unknown In the context of spatial data: The correct value for the specific spatial object is not known to, and not computable by, the data provider. However, a correct value may exist. EXAMPLE When the "elevation of the water body above the sea level" of a certain lake has not been measured, then the reason for a void value of this property would be 'Unknown'. NOTE 'Unknown' is applied on an object-by-object basis in a spatial data set. Valid Data Dictionary Vocabularies Eionet Data Dictionary NilReasonType Unpopulated In the context of WFD2016: Mandatory value not reported by the data provider. Use only if not reported (Annex 0 of the WFD Reporting Guidance). In the context of spatial data: The characteristic is not part of the dataset maintained by the data provider. However, the characteristic may exist in the real world. EXAMPLE When the "elevation of the water body above the sea level" has not been included in a dataset containing lake spatial objects, then the reason for a void value of this property would be 'Unpopulated'. NOTE The characteristic receives this value for all objects in the spatial data set. Valid Data Dictionary Vocabularies Eionet Data Dictionary NilReasonType Withheld In the context of spatial data: The characteristic may exist, but is confidential and not divulged by the data provider. Valid Data Dictionary Vocabularies Eionet Data Dictionary NilReasonType