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.

Datum (Überarbeitung): 2024-10-01

Identifikator: RMI-be / wideumont_hail

Bearbeitungsstatus: Kontinuierliche Aktualisierung

Ansprechpartner

Königliche Meteorologische Institut

Eigentümer / Datenherr

Königliche Meteorologische Institut

Überarbeitungsintervall: Kontinuierlich

GEMET - INSPIRE themes, version 1.0

Atmosphärische Bedingungen

Keywords Schlüsselwörter

federal government
hail
observation

Spatial scope

National

Zugriffseinschränkungen: Benutzerdeifinierte Einschränkungen

Andere Einschränkungen: Öffentliche Zugang nicht beschränkt

Nutzungseinschränkungen: Geistiges Eigentum

Sicherheitseinstufung: Unbeschränkt

Räumliche Darstellungsart: Raster, Gitter

Distanz: 500 http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_19139_Schemas/resources /uom/ML_gmxUom.xml#m

Sprache: English

Thematik

Atmosphäre

Anfangszeitpunkt: 2016-04-01T00:00:00

Code: EPSG:4258

Abgabeformat

HDF ( 5 )

Online: RMI opendata portal ( WWW:LINK-1.0-http--link )
RMI opendata portal

Bezugsebene: Datenbestand

Andere: dataset

Konsistenz des Wertebereichs

Testverfahren: INSPIRE Conformity

Konformitätsergebnis

Datum (Publikation): 2010-12-08

Erklärung: See the referenced specification

Bestanden: Nein

Erläuterung: 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.