Arica is a coastal city located in northern Chile, in the Atacama Desert. The behavior of surface temperatures in the city between 1985 and 2019 was studied using Landsat satellite images, leading to the identification of surface urban heat islands (SUHI), surface urban cold islands (SUCI), and average temperature zones. The higher intensities of the SUHI reach values of almost 45 °C and the SUCI lower values are below 13 °C. From the socioeconomic characterisation of the population based on indicators retrieved from the 2012 and 2017 population censuses, we identified that during the study period there was a lower presence of SUHI, but these were linked to spaces of lower socioeconomic level and, for the most part, would form new urban spaces within the city. On the other hand, SUCI had a greater spatial presence in the study area and in the urban morphology, being found mostly in areas of high socioeconomic level and in consolidated spaces with few possibilities of generating new constructions.

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La Unión Europea (UE) es una forma y proceso de integración supranacional y una comunidad política supraestatal de compleja articulación jurídica e instrumental que ha respondido históricamente a una serie de objetivos de interés en el ámbito territorial para los Estados miembros. Este estudio pretende dar a conocer algunos aspectos fundamentales del trabajo realizado por la UE a escala internacional y más concretamente en los países del sur de Europa. Dentro de esta labor que desempeña la UE, este estudio se centra en el análisis de la llamada política de cohesión y cómo esta influye en el desarrollo regional de determinadas zonas meridionales de Europa. La UE está compuesta por 27 países europeos entre los cuales existen claras disparidades socioeconómicas. Este escenario plural y diverso influye en la forma en que se concretan los fondos europeos en el territorio, y más concretamente en la Europa del Sur. Estudiar este proceso es fundamental para lograr los objetivos de desarrollo sostenible de la Agenda 2030 y dotar a las regiones de instrumentos propios que les hagan ser dinámicas y competitivas.

In arid areas, rural communities can be affected by erosive phenomena caused by intense rainfall. By involving such communities in participatory mapping over the last few decades, our ability to analyse the effects of these phenomena has been enhanced. The aim of this study was to evaluate participatory mapping as a tool for spatially analysing agricultural variations caused by erosive phenomena, using local people to identify chronologies of physical events so we could analyse their effects on agriculture. The study was conducted in Laonzana, Tarapacá Valley, in northern Chile. We selected the participants for the participatory mapping using speci c criteria, and carried out eld activities in different phases, which allowed the identi cation, georeferencing and registration (through participatory mapping) of the information collected in the eld and from the collective memories of the participants. Three periods were studied: 1) "before 1977" with 26 sites and covering 234,273 m 2 ; 2) "between 1977 and 2012" with 6 sites and an area of 92,941 m 2 ; and 3) "after 2012' with three sites, covering 29,852 m 2 . This provided evidence for a decrease in the number of productive sites, these being limited to the vicinity of the village. The participatory mapping technique has become a useful tool in desert and mountainous areas with low population densities for recovering experiential information from communities. This participation contributes to the provision of examples for researchers, communities and government agencies to use in arguing for the need for cartographic information.

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