AUTHOR=Martin-Vide Javier , Sarricolea Pablo , Moreno-García M. Carmen TITLE=On the definition of urban heat island intensity: the “rural” reference JOURNAL=Frontiers in Earth Science VOLUME=3 YEAR=2015 URL=https://www.frontiersin.org/journals/earth-science/articles/10.3389/feart.2015.00024 DOI=10.3389/feart.2015.00024 ISSN=2296-6463