This page was last edited on 12 March , at Atmospheric radiative transfer codes Satellite meteorology and remote sensing. Sample application and testing software. Some performance statistics are given below in section 5. Optionally ozone , carbon dioxide , nitrous oxide , methane and carbon monoxide can be variable with all other constituents assumed to be constant. Help Center Find new research papers in: Given an atmospheric profile of temperature, variable gas concentrations, cloud and surface properties RTTOV calculates radiances and brightness temperatures.
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Some performance statistics are given below in section 5. Check the box only if you agree to be bound by the terms and conditions of this license agreement.
Any comments on the models or suggestions for improvements should be submitted to the NWP SAF using the nwpsaf metoffice. Interpolator and TL-adjoint pair: Rochon, Environment Canada firstname. This is not the case for a scalar machine like rttvo-9 IBM.
Science and Technology Branch. Jacobian mapping between vertical coordinate systems in data assimilation, Q.
RTTOV (radiative transfer code) – Wikipedia
Retrieved from ” https: Quarterly Journal of the Royal Meteorological Society Note that only the infrared and microwave channels can be simulated at present.
The software package will only be downloaded if the box is checked. Atmospheric radiative transfer codes Satellite meteorology and remote sensing.
For these interpolators the value for a variable on a given target level comes from an interpolation between values on the two nearest source levels above and below. You’re using an out-of-date version of Internet Explorer. The only mandatory input is water vapour. The number of users of this new version is 53 as of 1 May The Saunders et al.
Please read the terms and conditions of the licence agreement for use of this software package.
Jacobian mapping between rttov9 coordinate systems in data assimilation. The application and test program performs the following tasks: In Figure 1 the inputs and output user levels are whereas the internal RTTOV optical depth calculations are on 43 levels.
RTTOV (radiative transfer code)
Download General description This is a sample F90 application and testing package on use of a forward interpolator and TL-adjoint pair for interpolation and Jacobian mapping. Given an atmospheric profile of temperature, variable gas concentrations, cloud and surface properties RTTOV calculates radiances and brightness temperatures. The sample input consists of two temperature profiles, the eta-hybrid vertical coordinate of these rtotv-9 profiles, and sample pre-calculated level Jacobian profiles for 14 AMSU-A channels.
Unfortunately this is not as simple as it appears because different computing platforms perform differently.
Fast transmittance model for satellite sounding. It should also be noted that RTTOV-9 can be run on a multiprocessor environment allowing run times to be reduced accordingly.
FASTEM2 computes the surface rttpv-9 averaged over all facets representing the surface of the ocean and an effective path correction factor for the down-welling brightness temperature. Enter the email address you signed up with and we’ll email you a reset link.
There are a number of points that can be made from Figure 3. RTTOV – the fast radiative transfer model for calculations of radiances for satellite infrared rttob-9 microwave nadir scanning radiometers see push broom scanner. It calculates a set of weights that, each time an interpolated value is tttov-9, will bring in all the source levels between the target level and its own neighbours above and below.