Data description
Footprints
The footprints were created using a model with a rotated
pole at longitude = 177.5 degrees, latitude = 37.5 degrees
(meaning that the z-axis of the new coordinate system lies
at longitude = 177.5, latitude = 37.5 degrees). This is a
standard technique in regional NWP and climate models, to
ensure that the spacing in km between grid points remains
relatively consistent. The footprints are on a regular
grid in the rotated coordinate system, with horizontal grid
spacing 0.22 degrees.
The storm footprints (raw and recalibrated) are
available in NetCDF and csv format.
- NetCDF: The NetCDF files should be compliant with the
NetCDF Climate and Forecast (CF) Metadata Convention 1.0
(http://cf-pcmdi.llnl.gov/).
More information on NetCDF files, including what software can
be used to read them, can be found from
Unidata website.
- csv: The csv files list grid number and maximum 3-second
gust speed in ms-1. The true locations (longitude and latitude)
of the grid points are given in grid
locations file.
Tracks
The track files contain a 5 line header. The information
in the body of the file gives:
- Date and time (YYYYMMDDHH).
- Longitude of relative vorticity maximum (degrees).
- Latitude of relative vorticity maximum (degrees).
- Relative vorticty at T42 resolution (x10-5 s-1).
- Longitude of associated MSLP minimum (degrees).
- Latitude of associated MSLP minimum (degrees).
- MSLP minimum (hPa).
- Longitude of 925hPa windspeed maximum within a 6 degree
radius of voriticity maximum (degrees).
- Latitude of 925hPa windspeed maximum within a 6 degree
radius of voriticity maximum (degrees).
- 925hPa windspeed maximum within a 6 degree radius of
voriticity maximum (ms-1).
- Longitude of 925hPa windspeed maximum over European and
Scandinavian land (excluding Iceland) within a 3 degree
radius of voriticity maximum (degrees).
- Latitude of 925hPa windspeed maximum over European and
Scandinavian land (excluding Iceland) within a 3 degree
radius of voriticity maximum (degrees).
- 925hPa windspeed maximum over European and Scandinavian
land (excluding Iceland) within a 3 degree radius of
voriticity maximum (degrees).
Licensing: The data provided on this site
can be used for research and commercial purposes under the
Creative Commons CC BY 4.0 International Licence:
http://creativecommons.org/licenses/by/4.0/deed.en_GB.
The following citation should be used for the XWS Datasets:
(c) Copyright Met Office, University of Reading and University
of Exeter. Licensed under Creative Commons CC BY 4.0 International
Licence: http://creativecommons.org/licenses/by/4.0/deed.en_GB.
Disclaimer: The organisations involved
give no warranty as to
the quality or accuracy of the information on this website or
its suitability for any use.
Your use of information provided by this website is at your own risk.
