Initial report on the dust and clouds retrieval

Report on the dust and clouds retrievalDust and cloud information will be retrieved from SPICAMUV and NOMAD UVIS and IR channels instruments From solar occultation observations vertical profiles will be obtained while from nadir measurements integrated optical depths will be derived In case of solar occultations vertical profiles of extinction number density loading will be retrieved as well as information on the size of the grains Using the wide spectral interval sounded by NOMAD covering the UVvisible and the IR domains it will be possible to derive more information shape andor composition It will be possible to distinguish dust and ice clouds From nadir observations spatial and seasonal maps of dust and ice cloud OD will be produced from retrievals using the new scattering properties measured in Task 26 and the vertical distribution a priori obtained in Task 54