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Support to Aviation control |
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Tropospheric
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monitoring |
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O3
- tropical NO2 - global - central Europe CH2O - global Aerosol - AOD - aerosol index Clouds - cloud info |
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monitoring |
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UV
- UV index - UV dose |
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monitoring |
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Ozone
- total column - global field - ozone bulletin BrO - global field |
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Aviation control |
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Volcanic plume
- SO2 & AAI |
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15 May 2007
Volcano eruptions are important sources of gases, such as sulphur dioxide (SO2), and volcanic ash (aerosols) in the atmosphere. These emissions may have an impact on air traffic, and therefore it is useful to monitor these compounds: near-real time information on the emissions of volcanic ash and sulphur dioxide will enable better planning of air line routes.
For the Service, a set of geographic regions covering known volcanoes has
been defined and each of these regions is monitored. Concentrations of SO2
are derived from UV measurements by satellite based instrument. If the
concentrations in a given region exceed a limit, a warning is issued of a
possible volcano eruption.
| Aviation control products | ||
| product | delivery NRT = near-real time |
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Sulphur dioxide (SO2) volcano warning data archive |
NRT - under development off-line |
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At a later stage the SO2 warning may be combined with information on the
aerosol distribution in the regions, e.g. using an Aerosol Absorbing
Index (AAI) or dedicated aerosol retrieval, to provide additional
information on possible volcano eruptions.
Related information
- Brief product introductions, made at the start of TEMIS in 2001: