Retrieval of surface properties in the NIR nightside windows of Venus

Kurzfassung

Based on a radiative transfer simulation model as well as new multi-window retrieval techniques, deep atmosphere and surface parameters can be retrieved from VIRTIS- M-IR data in the NIR nightside spectral transparency windows of Venus. A detailed error analysis for surface emissivity retrieval demonstrates the necessity for a new multi-spectrum retrieval technique. Local emissivity anomalies and differences in highland and lowland regions of Venus have been identified. One example (Idunn Mons) is discussed in the present paper.