Streamer is a
radiative transfer
Radiative transfer is the physical phenomenon of energy transfer in the form of electromagnetic radiation. The propagation of radiation through a medium is affected by absorption, emission, and scattering processes. The equation of radiative tran ...
code (Key and Schweiger, 1988) to calculate
radiance
In radiometry, radiance is the radiant flux emitted, reflected, transmitted or received by a given surface, per unit solid angle per unit projected area. Radiance is used to characterize diffuse emission and reflection of electromagnetic radiati ...
s (intensities) or
irradiance In radiometry, irradiance is the radiant flux ''received'' by a ''surface'' per unit area. The SI unit of irradiance is the watt per square metre (W⋅m−2). The CGS unit erg per square centimetre per second (erg⋅cm−2⋅s−1) is often used ...
s in the atmosphere.
The code uses N-stream approximation to the radiative transfer equations (Stamnes et al. 1988) and allows for flexible choice of bands. The code can be used both for satellite radiance applications and estimates of heating rates in both cloudy and non-cloudy atmosphere. One can specify surface reflectivity. Streamer is written in
FORTRAN.
FluxNet
FluxNet, the
neural network
A neural network is a network or circuit of biological neurons, or, in a modern sense, an artificial neural network, composed of artificial neurons or nodes. Thus, a neural network is either a biological neural network, made up of biological ...
version of Streamer, calculates upwelling and downwelling surface flux in either shortwave or longwave. It is less flexible than Streamer but is two to four times faster.
See also
*
List of atmospheric radiative transfer codes
An atmospheric radiative transfer model, code, or simulator calculates radiative transfer of electromagnetic radiation through a planetary atmosphere.
Methods
At the core of a radiative transfer model lies the radiative transfer equation that ...
*
Atmospheric radiative transfer codes
An atmospheric radiative transfer model, code, or simulator calculates radiative transfer of electromagnetic radiation through a planetary atmosphere.
Methods
At the core of a radiative transfer model lies the radiative transfer equation that ...
*
DISORT DISORT (Discrete Ordinates Radiative Transfer Program for a Multi-Layered Plane-Parallel Medium) - general and versatile plane-parallel radiative transfer program applicable to problems from the ultraviolet to the radar regions of the electromagneti ...
References
* Key, J. and A.J. Schweiger, 1998, Tools for atmospheric radiative transfer: Streamer and FluxNet, Computers & Geosciences, 24(5), 443-451.
* Stamnes, K., S. Tsay, W. Wiscombe and K. Jayaweera, 1988: Numerically stable algorithm for discrete-ordinate-method radiative transfer in multiple scattering and emitting layered media. Appl. Opt., 27, 2502-2509.
External links
Streamer home pageFluxNet home page
Atmospheric radiative transfer codes
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