Dear colleagues, our COST Action MP1104 will organize a WG4 meeting *Spectropolarimetric experiments for remote sensing* in *Helsinki*, Finland, from *19 to 21 August 2013*. ------------------------------------------------------------------------------------------------------------------------------------------ _Rationale_ : Polarized light reflectance measurements are essential to empirically validate physically-based parameterization, to verify selected theoretical models, to provide ground reference data for the calibration of remote-sensing observations, and to support databases needed for data-analysis techniques. Exploitation of acquired experimental information is a valuable tool in target classification and quantification. In the frame of the proposed workshop we invite researchers conducting reflectance measurements or using the measurement data. The primary focus is on the polarimetric characterization of test sites and targets, covering also angular, spatial and spectral aspects. Measurement techniques, modelling, and other use of measurement data can also be discussed, where related to polarimetric experiments. It is expected, that the workshop could lead to the organization of future joint measurement campaigns, raise a number of important applications and suggest novel retrieval algorithms by combining measured data obtained from different sensors. ------------------------------------------------------------------------------------------------------------------------------------------ The website is now ready : http://www.polarisation.eu/index.php/meetings/spectropolarimetricexperiments Registration is open. Limited financial support is available. If you would like to receive some funding from our COST Action to attend this meeting, indicate it at the time of the registration. Please have also a look at the financial support sub-page to check about your eligibility and what COST reimburses. *Deadline for registration & abstract submission is 31 May 2013.* If you have any question, please contact me or the LOC. Best wishes, Hervé -- Dr. Hervé Lamy Chairman of the COST Action MP1104 BRAMS team leader Senior Scientist Space Physics group Belgian Institute for Space Aeronomy Avenue Circulaire 3, 1180 Brussels Phone number: +32 (0)2 3730418 Fax number : +32 (0)2 3748423 e-mail : herve.lamy@aeronomie.be