NERC Data Catalogue Service
VIRTEM: Aircraft and Laboratory Based Spectroscopic Measurements
The new satellite instrument, IASI (Infrared Atmospheric Sounding Interferometer), is a moderate resolution (0.25 cm-1) Fourier Transform spectrometer launched in 2002 on the European METOP satellite. This instrument offers more spectral channels at a considerably higher spectral resolution than HIRS (High Resolution Infrared Sounder) - the instrument which it replaced as the operational infra-red sounder. IASI delivers vertical profiles of temperature and humidity data with a resolution of 1km compared with approximately 4km from HIRS.
Translating the improvement in the spectral resolution of the instrument into improvements in the accuracy and height resolution of the temperature, humidity and ozone profiles is dependent on a detailed knowledge of the spectroscopy of the atmosphere in this spectral region. The aim of the Validation of IASI (Infrared Atmospheric Sounding Interferometer) Radiative Transfer Experiments and Modelling (VIRTEM) project was to make the improvements to the spectroscopy necessary to make full use of the increased spectral resolution of IASI.
The primary objectives of the VIRTEM project were:
*To generate a detailed set of atmospheric observations of radiances and supporting in-situ data.
*To analyse and validate the current spectroscopy using state of the art line-by-line radiation models.
*To generate an improved spectroscopic database.
VIRTEM was an EU project to validate the instrumentation and retrieval methods to be used on IASI. Data in this dataset collection include both aircraft based and lab based spectroscopic measurements.
Default
Identification info
- Metadata Language
- English (en)
- Dataset Reference Date ()
- 1999-12-10T03:09:32
- Dataset Reference Date ()
- 1999-12-10T03:09:32
- Identifier
- NCAS British Atmospheric Data Centre (NCAS BADC) / 67a97e179d0dcee074969cb7ea87e928
- Maintenance and update frequency
- unknown
- Update scope
- series
- Keywords
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- VIRTEM
- IASI
- Temperature Humidity
- GEMET - INSPIRE themes, version 1.0 ()
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- atmospheric conditions
- Limitations on Public Access
- otherRestrictions
- Other constraints
- Please contact the data centre for assistance on accessing data from this dataset collection.
- Use constraints
- otherRestrictions
- Other constraints
- Usage limitations for the data within this collection is set at the individual dataset level. Please refer to the licence details of each underlying dataset.
- Spatial representation type
- grid
- Topic category
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- Climatology, meteorology, atmosphere
))
- Begin date
- 1998-08-04T23:00:00
- End date
- 1999-05-05T23:00:00
- Code
- WGS 84
Distribution Information
- Data format
-
-
Contact data centre for format details.
()
-
Contact data centre for format details.
()
- Resource Locator
-
CEDA Data Catalogue Page
Detail and access information for the resource
- Resource Locator
-
Copy of VIRTEM project website
No further details.
- Resource Locator
-
CEDA Data Catalogue Page
Detail and access information for the resource
- Resource Locator
-
Copy of VIRTEM project website
No further details.
- Quality Scope
- series
Report
- Dataset Reference Date ()
- 2010-12-08
- Statement
- Please see data lineage statements for each dataset within this collection for data lineage details.
Metadata
- File identifier
- 67a97e179d0dcee074969cb7ea87e928 XML
- Metadata Language
- English (en)
- Character set
- 8-bit variable size UCS Transfer Format, based on ISO/IEC 10646
- Resource type
- series
- Hierarchy level name
- series
- Metadata Date
- 2021-11-03T02:04:44
- Metadata standard name
- UK GEMINI
- Metadata standard version
- 2.3
