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Flow direction of the cold air drainage (automatic grid adjustment)

Layer description:

The wind arrows ("flow direction of cold air") refer to the situation at 4 a.m. during a low-exchange radiation weather situation in summer. They are output at a height of 2 m above ground. The present wind arrows were aggregated (combined) from their original resolution of 25 m into a resolution of 25 m, 100 m , 200 m, 300 m, 500 m or 1000 m. The display is automatically adjusted to the respective zoom level (grid adjustment).



Explanation:

The present geodata are taken from the regional climate analysis of Luxembourg (GEO-NET & LIST 2021) which was published with the report « KLIMAÖKOLOGISCHE SITUATION IN LUXEMBURG“ - Modellbasierte regionale Klimaanalyse / (La situation au Luxembourg en matière d’écologie climatique) » by the Administration for Environment.



Source:

-> https://environnement.public.lu/fr/klima-an-energie/changement-climatique/klimaanalyse.html

-> https://data.public.lu/fr/datasets/klimaokologische-situation-in-luxemburg-la-situation-au-luxembourg-en-matiere-decologie-climatique/



Abstracts:

The Luxembourg regional climate, which is formed during a low-exchange radiative weather pattern in summer, was investigated using high-resolution computer-based modelling. In total, the model area is described with 8,272,693 grid cells, with information on terrain height, land use, structural height and degree of sealing stored for each grid cell. The urban climate model FITNAH-3D according to Groß (1992) forms the basic framework for the modelling. The input data and model results are based on a horizontal spatial resolution of 25 m x 25 m. The model results are presented in maps. The model results are presented in cartographic representations of the nocturnal temperature field, the nocturnal cold air flow field (4 a.m. in each case) and the thermal load during the day (2 p.m.) and concretised in the form of a climate analysis map.



The main product of the work process is a planning recommendation map with an associated catalogue of measures. On the one hand, the map makes visible the graduated need for action to improve thermal comfort in summer in all living/working and recreational areas (“load area”) of the population in Luxembourg. On the other hand, the planning recommendation map also assigns a value to all green and open spaces in the country ("compensation area") with regard to the climate-ecological functions they provide.



Notes:

- The geodata are only to be used in the context of the specific considerations of the above-mentioned report (e.g.: basic data as of 2018, specific meteorological framework conditions).

- The composition of the layers is based on the corresponding maps from the above-mentioned report. Even though these layers can be combined with any other layers from other thematic areas in the geoportal, it should be noted that these representations can easily lead to misinterpretations.

Simple

Date (Creation)
Invalid DateT00:00:00
Date (Revision)
Citation identifier
/ 8a11d9b4-2274-4505-8b03-ff9f075d7470
Presentation form
Digital map
Status
On going
Point of contact
Organisation name Individual name Electronic mail address Role

Administration du Cadastre et de la Topographie

Administration du Cadastre et de la Topographie

info@act.public.lu

Author
Maintenance and update frequency
As needed

Entités au Grand-Duché de Luxembourg

  • Grand-Duché du Luxembourg

Keywords
  • Flow direction of the cold air drainage (automatic grid adjustment); Climate analysis map

Geoportail.lu themes

  • Environment

Geoportail.lu structure

  • Environment>Climate protection

Keywords
  • geoportail.lu

  • intranet

Access constraints
Other restrictions
Spatial representation type
Vector
Denominator
500
Character set
UTF8
N
S
E
W
thumbnail




Reference system identifier
EPSG / http://www.opengis.net/def/crs/EPSG/0/2169
Distribution format
Name Version

ShapefileTODO

OnLine resource
Protocol Linkage Name

UKST

https://map.geoportail.lu/theme/emwelt?version=3&zoom=10&X=692693&Y=6407693&lang=fr&rotation=0&layers=2163&opacities=1&time=&bgLayer=basemap_2015_global&crosshair=false

Flow direction of the cold air drainage (automatic grid adjustment)

WWW:LINK-1.0-http--link

https://data.public.lu/fr/datasets/climate-and-energy-the-climate-ecology-situation-in-luxembourg/

OGC:WMS-1.3.0-http-get-map

https://wms.geoportail.lu/public_map_layers/service

2163

Hierarchy level
Dataset

Metadata

File identifier
7a2dabf0-a51d-4a37-be5e-24f679649a86 XML
Metadata language
Français
Character set
UTF8
Hierarchy level
Dataset
Hierarchy level name

dataset

Date stamp
2025-02-19T09:51:45
Metadata standard name

ISO 19115:2003/19139

Metadata standard version

1.0

Metadata author
Organisation name Individual name Electronic mail address Role

Administration de l'environnement

Luc Lieffring

luc.lieffring@aev.etat.lu

Administration de l'Environnement

data@aev.etat.lu

Other language
Language Character encoding
Luxembourgish; Letzeburgesch UTF8
English UTF8
German UTF8
French UTF8
 
 

Overviews

overview

Spatial extent

thumbnail

Keywords

Flow direction of the cold air drainage (automatic grid adjustment); Climate analysis map
Geoportail.lu structure

Environment>Climate protection
Geoportail.lu themes

Environment


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