Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of Nivel del agua freática-es#Sense
Groundwater depth indicator-en#Sense
Grundwasserpegel-de#Sense
Groundwater gauge-en#Sense
Indicatore di profondità della falda freatica-it#Sense
Niveau de la nappe phréatique-fr#Sense