Risk of hail - Wideumont weather radar
Hail products are derived from the observed vertical profiles of radar reflectivity and the NWP vertical profiles of temperature. Three types of products are generated. poh : probability of hail of any size (larger than 0.5 cm diameter)expressed in %. posh : probability of severe hail(larger than 2cm)expressed in %. mesh : maximum expected size of hailexpressed in mm of hailstone diameter. All products are generated every 5 minutes. This product is not publically available yet.
Simple
- Date (Révision)
- 2023-02-28
- Identificateur
- RMI-be / wideumont_hail
- Etat
- Mise à jour continue
- Fréquence de mise à jour
- Continue
- GEMET - INSPIRE themes, version 1.0
-
- Conditions atmosphériques
- Mots clés
-
- federal government
- hail
- observation
- Spatial scope
- Contraintes d'accès
- Autres restrictions
- Autres contraintes
- Pas de restrictions concernant l'accès public
- Contraintes d'utilisation
- Droit de propriété intellectuelle / Droit patrimonial
- Restrictions de manipulation
- Non classifié
- Type de représentation spatiale
- Raster
- Distance de résolution
- 500 http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_19139_Schemas/resources /uom/ML_gmxUom.xml#m
- Langue
- English
- Catégorie ISO
-
- Climatologie/Météorologie/Atmosphère
N
S
E
W
![](https://publish.geo.be/geonetwork/F0ow2Say/api/regions/geom.png?geomsrs=EPSG:4326&geom=POLYGON((8.9985%2047.6612,8.9985%2052.1658,2.0103%2052.1658,2.0103%2047.6612,8.9985%2047.6612)))
- Date de début
- 2016-04-01T00:00:00
- Code
- EPSG:4258
- Format (encodage)
-
-
HDF
(
5
)
-
HDF
(
5
)
- Ressource en ligne
-
Portail opendata de l'IRM
(
WWW:LINK-1.0-http--link
)
Portail opendata de l'IRM
- Niveau
- Jeu de données
- Autre
- dataset
Cohérence du domaine de valeurs
- Nom du test
- INSPIRE Conformity
Résultat de conformité
- Date (Publication)
- 2010-12-08
- Explication
- See the referenced specification
- Degré de conformité
- Non
- Généralités sur la provenance
- Hail detection module is an implementation of two hail detection algorithms: of Witt and of Waldvogel (Waldvogelet al., 1979). The module takes radar observations and temperature information and estimates probability of hail (POH, %), probability of severe hail (POSH, %) and maximum expected size of hail (MESH, mm). The implementation of the Waldvogel algorithm is based on the Holleman s equation (I. Holleman, 2001), which was verified for Belgium by Delobbe et al. (2003). The POH is derived in the algorithm from the presence of a substantial updraft detected above the freezing level (0º-isoterm). The implementation of the Witt algorithm is based on the weighted integration of the reflectivity values between the heights of 0º-isoterm and -20º-isotherm (Witt et al., 1998). This algorithm provides POSH and MESH estimates.
- Identifiant de la fiche
- RMI_DATASET_WIDEUMONT_HAIL XML
- Langue
- English
- Type de ressource
- Jeu de données
- Date des métadonnées
- 2023-02-28