Community Radiative Transfer Model: Difference between revisions

Revision as of 04:47, 6 April 2024

Revision as of 04:48, 9 April 2024

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CRTM contains [[forward radiative transfer model|forward]], [[tangent linear radiative transfer model|tangent linear]], [[adjoint radiative transfer model|adjoint]] and K (full Jacobian matrices) versions of the model; the latter three modules are used in [[Inverse_problem|inversion methods]], including variational assimilation and satellite retrievals.

The CRTM model is used primarily in numerical weather prediction codes employed by NOAA and NASA, and is developed and maintained through the Joint Center for Satellite Data Assimilation (JCSDA).<ref>Johnson, B.T., Dang, C., Stegmann, P., Liu, Q., Moradi, I. and Auligne, T., 2023. The Community Radiative Transfer Model (CRTM): Community-focused collaborative model development accelerating research to operations. Bulletin of the American Meteorological Society, 104(10), pp.E1817-E1830.</ref>. Its primary function is to relate changes in satellite-based observations to changes in the model physical state. This capability is essential to the use of satellite observations in data assimilation methodologies. One of several applications of CRTM are retrievals of brightness temperature and [[sea surface temperature]] from [[Advanced Very High Resolution Radiometer]] sensor, among many other infrared and microwave sensors.

== See also ==