A fast radiative transfer operator for advanced satellite infrared sounders

Introduction       Releases       Code development under CVS       Documentation      


Gastropod is an Open Source Free Software Fortran 90 library of forward and gradient routines for fast radiative transfer calculations for the advanced infrared sounders. The source code is available free of charge under the Free Software LGPL license.

Gastropod was initially developed at The Met Office (UK). Ongoing development is supported by NIWA (New Zealand's National Institute of Water and Atmospheric Research).

The current distribution (version 0.3.0) comprises:

Future developments include:

If you intend to use (and/or contribute) to the Gastropod project, or have any technical questions concerning Gastropod, please post to the gastro-users mailing list.

Obtaining Gastropod


Regression coefficients

Gastropod regression coefficients are derived from the University of Maryland Baltimore County convolved transmittance database. To date regression coefficients have been derived for the pre-launch instrument spectral response function (160 MBytes) and the v02 post-launch instrument spectral response function (70 MBytes).

Code development under CVS

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Installation information

Related References

Gastropod is hosted by

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Last updated 06 April 2005. Contact for any comments regarding this web page. Art work is a gastro-gift from A. Collard.