Date (Creation)

2025-12-10

Identifier

IDEC / model-orientacions-litoral-50cm-202212-202301

Purpose

The main objectives of this geoinformation are: To facilitate the carrying out of studies of biodiversity and coastal ecology (influence of slope orientation on the environmental conditions of the coast, dynamics of dune habitats, regeneration of vegetation after storms and the location of species sensitive to the microclimate, etc.) which at the same time allow planning of environmental conservation and restoration strategies, and assess the impact of climate change on coastal biodiversity; To facilitate the calculation of flood risk and other risks where knowledge of the relief is essential; To provide a reference base for the development of any activity that has a territorial impact and that must take relief into account. They are especially relevant in the field of technical activities, management, planning or administration of the territory; Carry out spatial analysis operations with other sets of geographic information, especially in 3D.

GEMET - INSPIRE themes, version 1.0

• Elevation

IDEC - llocs

• Catalonia
• Spain
• Europe

IDEC - temes

• Hub litoral
• SIDL

Access constraints

Other restrictions

Other constraints

No limitations

Use constraints

Other restrictions

Other constraints

Creative Commons Attribution 4.0 International (CC BY 4.0)

Aggregate Datasetindentifier

model-elevacions-terreny-litoral-lidar-50cm-202212-202301

Association Type

source Source

Spatial representation type

Grid

Distance

0.5  m

Metadata language

Catalan; Valencian

Character set

UTF8

Topic category

• Elevation

Description

Spatial extent covers Catalonia coastal. Temporal extent refers to the date of the data sources. Vertical extent is approximate.

Begin date

2022-12-05

End date

2023-01-29

Unique resource identifier

ETRS89 UTM zone 31 North (EPSG:25831)

Reference system identifier

Orthometric altitudes referred to the geoid EGM08D595

Distribution format

• COG ()

OnLine resource

Data download

Access point

OnLine resource

Product description

Access point

OnLine resource

Technical specifications

Access point

Hierarchy level

Dataset

Statement

The orientation model is obtained from a terrain elevation model (MET), which represents the bare surface of the terrain. This MET can be produced in different ways, but, generally, those of the coast are derived from lidar point clouds. The method used in each case is specified in the metadata lineage of each publication. The process for obtaining the orientation model from the MET consists of: 1. Gradient derivation: the slope in the X and Y directions is calculated using finite difference methods on the regular MET grid; 2. Calculation of the orientation angle: from the gradients, the angle in degrees with respect to true north is determined, which is translated into a cardinal direction (N, NE, E, SE, etc.); 3. Assignment of values ​​per cell: each pixel in the model receives an orientation value between 0° and 360°, where 0° corresponds to north, 90° to east, 180° to south and 270° to west. Additionally, a colored orientation model is generated by assigning RGB values ​​to each pixel according to the interval (of orientations) in which it is located and the established legend.

Description

Terrain elevations model of the coastline.

File identifier

model-orientacions-litoral-50cm-202212-202301 XML

Metadata language

Catalan; Valencian

Character set

UTF8

Hierarchy level

Dataset

Date stamp

2026-01-29

Metadata standard name

IDEC profile of metadata of spatial datasets

Metadata standard version

Version 5.0