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Risk of hail - Jabbeke 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 (Revision)
2024-10-01
Identifier
RMI-be / jabbeke_hail
Status
On going
Point of contact
  Royal Meteorological Institute of Belgium
Owner
  Royal Meteorological Institute of Belgium
Maintenance and update frequency
Continual
GEMET - INSPIRE themes, version 1.0
  • Atmospheric conditions
Keywords
  • federal government
  • hail
  • observation
Spatial scope
  • National
Access constraints
Other restrictions
Other constraints
No limitations on public access
Use constraints
Intellectual property rights
Classification
Unclassified
Spatial representation type
Grid
Distance
500  http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_19139_Schemas/resources /uom/ML_gmxUom.xml#m
Metadata language
English
Topic category
  • Climatology, meteorology, atmosphere
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Begin date
2016-04-01T00:00:00
Unique resource identifier
EPSG:4258
Distribution format
  • HDF ( 5 )

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

RMI opendata portal

Hierarchy level
Dataset
Other
dataset

Domain consistency

Name of measure
INSPIRE Conformity

Conformance result

Date (Publication)
2010-12-08
Explanation
See the referenced specification
Pass
No
Statement
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.
File identifier
RMI_DATASET_JABBEKE_HAIL XML
Metadata language
English
Hierarchy level
Dataset
Date stamp
2024-10-01
Point of contact
  Royal Meteorological Institute of Belgium
http://www.meteo.be
 
 

Overviews

overview

Spatial extent

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Keywords


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