@prefix agrovoc: <http://aims.fao.org/aos/agrovoc/> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix ns0: <http://art.uniroma2.it/ontologies/vocbench#> .
@prefix dc: <http://purl.org/dc/terms/> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .

agrovoc:xDef_96da1a04
  rdf:value "A polynya is an open water area surrounded by sea ice in polar regions. Polynyas are large areas (10–90 000 km2) of open water or reduced ice cover in the midst of the thick ice pack that cover polar oceans during much of the year. By remaining open in winter or becoming ice-free early in spring, polynyas serve as feeding, mating, spawning and over-wintering grounds for a diverse and populous bird and mammal community. Accordingly, polynyas have been compared to oases in terrestrial deserts."@en ;
  ns0:hasSource "Barber, D., Marsden, R., Minnett, P., Ingram, G., & Fortier, L. (2001). Physical processes within the North Water (NOW) polynya. Atmosphere-Ocean, 39(3), 163–166. https://doi.org/10.1080/07055900.2001.9649673" ;
  dc:created "2026-07-03T11:04:56"^^xsd:dateTime .

agrovoc:c_86bda733 skos:definition agrovoc:xDef_96da1a04 .