The study analyzes the evolution of the beaches of Sant Adrià de Besòs, Badalona and Montgat during the last decades to be able to characterize the problems encountered there, identify the most critical points and define initial proposals to solve the problem of regression they suffer.

: Information regarding an avalanche observed in the past. Mapped based on a survey of inhabitants of the area where the phenomenon took place. The boundaries shown are based on the explanations given by the witnesses consulted. Information is usually taken from Avalanche Zones close to inhabited areas where avalanches have historically interfered with human activity. For this reason the majority of the information is found around these zones. They are shown in purple. Cartography often maps only the avalanche arrival zone, as the descriptions usually refer to their extent and the damage caused.

The patterns of use and frequentation of beaches are a useful tool in coastal management and planning. The aim of this article is to apply the methodology for the analysis of physical carrying capacity in 16 beaches of the island of Menorca, based on the values in m²/user recommended in 2000. A multi-temporal analysis of the evolution of the beaches is carried out using qualitative variables that allow obtaining the trends of the beaches with parameters that analyze their management and occupation (2000-2017). The results obtained show that the beaches have acceptable carrying capacities and that environmental management, their publicity, and the services provided condition their spatio-temporal evolution. The methodology allows establishing future scenarios through the use of the analyzed variables.

This study analyzes the structure and dynamics of the coastal juniper forest of Punta de la Creueta in Tarragona, comparing it with juniper forests of the island of Mallorca.

Measurements of gravimetric anomalies and zoning of the territory according to them: the gravimetric anomaly of Bouguer at a scale of 1:250,000 and 1:500,000; the regional gravimetric anomaly at a scale of 1:250,000; and the residual gravimetric anomaly at a scale of 1:250,000.

Inventory of defence structures built to reduce the risk of avalanches. Single and lineal structures are documented, such as artificial avalanche release systems, road barriers, breakers, deflection structures, retention nets, screens, wind baffles, deflectors, rigid and flexible barriers, retention walls, reforestation and controlled areas.

Information regarding an area exposed to an avalanche. Mapped based on analysis of the terrain and of signs that avalanches leave in their path, mainly, in forests. In Avalanche Zones, avalanches occur frequently and are of different sizes. Avalanche Zones have been systematically mapped throughout the region. They are shown in orange. There are two types of Avalanche Zones: zones where avalanches usually follow the same path, shown in orange, and zones where avalanches usually follow different paths, shown in pale orange.

The documentation of the data set establishes 76 operational objectives that are deployed in 312 adaptation measures for the various natural systems, socio-economic areas and territories of Catalonia.

Continuous digital hydrogeological cartography 1:25,000 is a set of geothematic information related to the quantitative and qualitative characteristics of groundwater, the environment that contains it and the associated hydrogeological elements such as wells, piezometers, springs and water mines.

This study analyzes the historical transformation and current situation of the dune landscape in Catalonia.