This study assesses the changes in coastal dune landscapes in Catalonia, based on photographic, cartographic, and documentary sources between 1890 and 1960, comparing them with the current status of dunes.

The current sanitary crisis caused by the rapid expansion of COVID-19 offered the possibility of giving respite to dune systems and allowing their natural regeneration after the effects of storm Gloria. This storm affected the Levantine and Balearic coasts between January 21 and 23, and when some systems began to recover, intensive coastal management again compromised the integrity of dune systems. The urgency to have the systems "ready" for consumption and exploitation moves away from the concept of sustainable tourism management and does not contribute to climate change adaptation. In this work, et points out some management actions on emerged beaches that have taken place during lockdown and deconfinement. The study focus on three management actions that reveal malpractice, such as leveling and mechanical cleaning, the construction of breakwaters, and the removal of Posidonia oceanica. For this, several case studies representing some of the best-preserved beach-dune systems in Catalonia and the Balearic Islands have been chosen.

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.

Based on the "Preliminary Studies for the stabilization of the beaches of Sant Adrià de Besòs, Badalona and Montgat", of March 2021, this document proposes a series of stabilization measures for the beaches of Badalona and Montgat.

This work assesses the level and role of management and the morphological status of coastal dunes in Catalonia and Valencia. Ten beach-dune systems were studied to determine how management actions influence their morphological status. Results show two main groups: those without sustainable management, in an advanced erosive state, and those where sustainable management was applied, presenting good conservation status.

The study analyzes the influx and mobility of recreational and sports boats on the beaches and coves of the Baix Empordà coastline, as well as user behavior and the impact on ecosystems.

This study evaluates the geomorphological state of 12 beach-dune systems over time, classifying them into four stages according to their degree of degradation: 1- systems in a natural state (two beaches), 2- highly altered or disappeared dune systems (three beaches), 3- dune systems in recovery process (five beaches), and 4- stabilized dune systems (two beaches).

Study that collects, from a more general perspective, all the information on the problem of sand loss and the disappearance of beaches in the Maresme region. From a more specific level, the study focuses on the port of Masnou and the coastal dynamics correction measures that can be applied there.

This technical report is an update and expansion of the preliminary studies for the stabilization of the beaches of Gavà and Viladecans, of December 2019. This new document analyzes the entire coastal section that extends from the mouth of the Llobregat river to Ginesta port and the evolution of the shoreline from 1990 to 2020, critical areas and related problems are identified with coastal stability, and action strategies are proposed that can solve the problem that has been identified.

The study focuses on floristic diversity and impacts on dune systems along the Catalan coast. Twenty-one dune-restricted plant species were identified as indicators of ecological integrity. A new index was applied to measure species diversity relative to total site biodiversity. Results indicate that dunes with less human activity retain more native species.