News and events



Changelog update | 22 November 2021
RAMI-V archive: the file RAMI5list.txt containing the list of experiments has been fixed for HET28_DIS_D2D scene as it contained one missing testcase.
(md5 sum)
Changelog update | 9 November 2021
RAMI4ATM: the second announcement regarding the new initiative dedicated to the benchmarking of coupled surface-atmosphere radiative transfer models.
RAMI4ATM will be publicly opened in January 2022.
Changelog update | 13 October 2021
RAMI-V archive: the file RAMI5list.txt containing the list of experiments has been fixed for HET51_WWO_TLS scene as it contained wrong illumination tags.
(md5 sum)
Changelog update | 30 September 2021
A new version of HET51_WWO_TLS scene
A new version (v2) of HET51_WWO_TLS scene has been obtained from the Wytham Woods 3D model: you can find more information here. This archive contains all the files needed to built HET51 version 2 (v2) scene. They can also be accessed individually on the presentation page.

Changelog update | 9 August 2021
HET08_OPS_WIN background reflectance is lambertian in RAMI-V, in contrast with the anysotropic properties assumed in RAMI-4. The description of the scene contained some refuse and has been updated in the "Spectral Properties" section only. Please, apologize for the misleading message in previous version of the page.
News | 14 July 2021
Journal of Remote Sensing Special Issue
is now considering submissions for its second special issue, Radiation Transfer Modeling With Radiation Transfer Model Intercomparison Vegetation Canopies.
It aims to publish results related to the RAMI-V phase and is open to scientists who directly participate in RAMI-V, but also to those who use RAMI-I to RAMI-V vegetation canopies to model various RS data in other spectral and other research domains.
Manuscripts may be submitted starting July 1, 2021 and through June 30, 2022: submission instructions here.
Changelog update | 21 May 2021
RAMI-V archive: is a new archive that includes all files needed to setup RAMI-V scenes and experiments, and a "readme.txt" file listing summary tables of the scenes, bands, measurements and other informations which can be useful to run your RAMI-V phase. A full list of experiment names is also included.
(md5 sum)
Changelog update | 27 April 2021
RAMI4ATM: an early announcement regarding the new initiative dedicated to the benchmarking of coupled surface-atmosphere radiative transfer models. RAMI4ATM will thus extend the RAMI to the simulation of satellite observations.
Changelog update | 14 April 2021
HET50_SAV_PRE: to improve performances of 3D codes the grassy part of the scene has been arranged in ~15k boxes hierarchically organized as
object grassysceneobject boxes (~15k)groups of plants (~10 per box).

Two additional files are then released for the models which can benefit from this rearrangement: grass_grid.zip. Please see also the comment on the head of the ".def" version, which includes a note on the ".obj" version (point 4).
Apart of this reorganization, with respect to the first issue of the scene (specifically grass.all.def), there is no change with respect the 200k plants to be instantiated which is still completely valid.

For what concerns the overstorey, we found that some boxes (172 of 48847) produced warnings. They are listed in the file linked list_tree_warning.txt and we advise to comment them in the corresponding tree plant files, given you get the same issue.
Changelog update | 18 March 2021
HET51_WWO_TLS in stand-by. As possible issues could arise with energy consevation at scene boundaries due to the sloping ground of the current implementation of the Wytham Wood forest, we decided to put this experiment in "stand-by". A further notice will follows as soon as the modified scenario will be issued.

Changelog update | 22 February 2021
HET09 and HET15: BEPE spectral properties were fixed for both the birchstand scenes. The corresponding files of the spectral properties, marked as _v2.txt, is now more explicit with respect to the properties of the different trees and additional comments were added.
Changelog update | 22 February 2021
HET09 birchstand scene a typo was corrected in the definition of the BEPE leaf (the keyword “ssphere” was used instead of the correct “sphere”).
Changelog update | 22 February 2021
HET07 pinestand summer some broken links in the table related to "tree structure" description have been fixed.
  1. 19 October 2020
    Fifth RAMI phase
  2. 30 November 2021
    End of submission period
  3. January 2022
    RAMI V results will be available
  4. January 2022
    RAMI4ATM phase will be opened