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18-Aug-2017   
Path: RAMI3
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Active submission period:
HOMOGENEOUS SCENES - March 2005 - July 2005
HETEROGENEOUS SCENES - March 2005 - December 2005

On-line results publication: March 2007

Scientific Publication:

RAMI-3 Publication Widlowski, J-L., M. Taberner, B. Pinty, V. Bruniquel-Pinel, M. Disney, R. Fernandes, J.-P. Gastellu-Etchegorry, N. Gobron, A. Kuusk, T. Lavergne, S. Leblanc, P. Lewis, E. Martin, M. Mottus, P. J. R. North, W. Qin, M.Robustelli, N. Rochdi, R.Ruiloba, C.Soler, R.Thompson, W. Verhoef, M. M.Verstraete, and D. Xie (2007), 'The third RAdiation transfer Model Intercomparison (RAMI) exercise: Documenting progress in canopy reflectance modelling', Journal of Geophysical Research, 112, D09111, 28, DOI: 10.1029/2006JD007821.

Bibliography: LaTeX, Word

Overview:

The third phase of the RAMI exercise is now officially closed. 18 different RT models from all over the globe have been participating in the various experiments of RAMI-3. First results (homogeneous cases only) were presented at the ISPMSRS meeting in October 2005 in Beijing, China. A more comprehensive presentation of the RAMI-3 results was given at the IWMMM-4 workshop in Sydney, Australia in March 2006. The experiments of RAMI-3, which built upon and extended the scope of previous RAMI phases, have been constructed around two major components:
  • Homogeneous scenes, which require the simulation of a standard set of radiative quantities in both the solar domain and under conservative scattering conditions for discrete and turbid-medium canopy representations. Here, the repetition of experiments known from previous RAMI phases offers the possibility to re-evaluate veteran models, as well as to welcome newcomers. Both 1-D and also 3-D RT models are kindly requested to submit their simulation results for this category by 31st July 2005.

    HOMOGENEOUS experiments
    HOMOGENEOUS TURBID: Solar Domain HOMOGENEOUS TURBID: Purist Corner HOMOGENEOUS DISCRETE: Solar Domain HOMOGENEOUS DISCRETE: Purist Corner

  • Heterogeneous scenes, which have been subdivided into 1) the Floating Spheres baseline scenarios requiring to simulate a standard set of radiative quantities in the solar domain and under conservative scattering conditions for both discrete and turbid-medium canopy representations, and 2) the Advanced Cases where additional measurement configurations within structurally complex environments may be required. All participating models are kindly requested to submit their simulation results for this category by 30th November 2005.

    HETEROGENEOUS experiments: Baseline scenarios
    TURBID FLOATING SPHERES: Solar Domain TURBID FLOATING SPHERES: Purist Corner DISCRETE FLOATING SPHERES: Solar Domain DISCRETE FLOATING SPHERES: Purist Corner
    HETEROGENEOUS experiments: Advanced scenarios
    CONIFER FOREST: NO TOPOGRAPHY CONIFER FOREST: TOPOGRAPHY REAL ZOOM-IN BIRCH STAND

Access to the various experiment description pages can be obtained by clicking on the corresponding images above. First time users, on the other hand, may want to explore the various test cases of this RAMI phase by using the hierarchic link provided below. In addition, a synoptic overview table is also provided to give direct access to all experiments of RAMI-3 (left column) and their associated measurements (right column).

Frst time users interested in participating in RAMI events, may want to read the FAQ section to get started, in particular, the How can I participate with my model(s) in a RAMI phase? question. Veteran users, on the other hand, should inform themselves of the full list of (file formatting and other) new features in RAMI-3. Outside active RAMI phases model developpers and customers can evaluate their tools As a novelty, RAMI-3 offers participants the possibility to test the compliance of their model-generated results files with the RAMI file-naming and formatting convention, prior to their submission via ftp: To do so follow the on-line format checker link in the top navigation bar.

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