Input station (METRo)

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Description Edit

This file contains the specific configuration data for a RWIS station. These data should be, usually, rather statics. As example, we're not expecting the longitude of the RWIS station to change.

Version and revision date Edit

  • Version: 1.0
  • Revision date: November 3rd 2004

Contents Edit

Station geographic location, details related to the type of station (factory owner), the client (region, company).

Mandatory fields Edit

Header Edit

Field description Element name
Version number version
Date of creation production-date
Time zones of station time-zone
Latitude and longitude coordinate + latitude, longitude
Station type station-type

Layer description Edit

Field description Element name
Layers position (from the surface) position
Layer type type
Layer thickness (m) thickness

Warning: Under particular condition, METRo will not be able to run with a given configuration. You will then see an error containing the string "Numerical stability test failed". See the first bullet of the changelog of version 3.0.1 for more information.

Optional fields Edit

Sun/shadow Edit

Field description Element name Unit
Visible azimuth angle azimuth decimal degree. 0 degree is North, going clockwise (90 is East)
Visible elevation angle elevation decimal degree

Mandatory if the option --enable-sunshadow is used. The sun-shadow routine requires azimuth, elevation pairs being ordered by growing azimuths values and also uniform step in azimuth is required (i.e, each neighbour azimuth values are displaced by same distance), otherwise an error message is displayed. Moreover, the whole horizon should be covered by the data, i.e. from 0 to 360 degrees. If there is no 360 degrees value given, the value of 0 degrees is taken as 360 degrees.

Azimuth/elevation values can be found on the European Joint Research Centre, Institute for energy and transport, for all locations in Europe, Africa and Asia.

These information must be included in the <visible-horizon> / <direction> tree. Here is an example:


Subsurface sensor depth Edit

Field description Element name Unit
Subsurface sensor depth sst-sensor-depth m

This field should be included in the <header> node. The optional flag --use-sst-sensor-depth must be called in order for this value to be used. Otherwise, the default value of 0.4 m is used has subsurface sensor depth. When this flag is not set, the default value is computed from the surface and deep sensor values.

Example Edit

<?xml version="1.0"?>

METRo I/O files
Station | Observation | Forecast | Roadcast | Configuration
METRo I/O specification
Schema | | Flowchart | Format | Date | Observation QA/QC | Road condition | Station type | Time zone | Layer type | Latitude and longitude
METRo I/O examples
Station | Observation | Forecast | Roadcast | Graphical display

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This page is part of the documentation of the METRo software. Back to the table of content.

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