RESUME The German Remote Sensing Data Center (DFD) of the German Aerospace Center (DLR) is an element in the network of the Multimission Facilities of ESA and responsible among other tasks for SAR processing. The DLR has implemented a service for value added products over land. This service can support the user community with preceise geocoded products in addtion to the standard products of ESA...

An algorithm for the retrieval of the aerosol optical thickness over land and over water from SCIAMACHY (SCanning Imaging Absorption SpectroMeter for Atmospheric ChartographY) is presented. Because calibrated data are not yet available for the SCIAMACHY channels used by the algorithm, the concepts were tested with GOME (Global Ozone Monitoring Experiment) data. The cloud fraction in the GOME pi...

The mission RA-2 has an essential role to play in the Envisat mission, as indicated in Table 1. Operating over oceans, its data can be used to monitor seasurface topography, thereby supporting research into ocean circulation and sea-level change, as well as providing observations of the sea floor structure or shape, and marine geoid characteristics. It will also be possible to determine near-se...

This paper discusses the variation and validation of the precision, or estimated random error, associated with the ESA Level 2 products from the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS). This quantity represents the propagation of the radiometric noise from the spectra through the retrieval process into the Level 2 profile values. The noise itself varies with time, stea...

The measurement of the range (or actually delay time) performed by an altimeter is affected by the delay of the ionosphere. This delay is in turn dependent on the frequency used. One of the major innovations of RA-2 is the second channel, at S-band (3.2 GHz), that provides the altimeter with the ionospheric correction This paper describes the characteristics of the S-band channel in RA-2, the u...

Validation of ENVISAT/SCIAMACHY columnar CO by FTIR profile retrievals at the Ground-Truthing Station Zugspitze R. Sussmann and M. Buchwitz IMK-IFU, Forschungszentrum Karlsruhe, Garmisch-Partenkirchen, Germany Institute of Environmental Physics (iup), University of Bremen FB1, Bremen, Germany Received: 13 July 2004 – Accepted: 13 January 2005 – Published: 3 February 2005 Correspondence to: R. S...

Validation of ENVISAT/SCIAMACHY columnar methane by solar FTIR spectrometry at the Ground-Truthing Station Zugspitze R. Sussmann, W. Stremme, M. Buchwitz, and R. de Beek IMK-IFU, Forschungszentrum Karlsruhe, Garmisch-Partenkirchen, Germany Institute of Environmental Physics (iup), University of Bremen FB1, Bremen, Germany Received: 27 January 2005 – Accepted: 23 March 2005 – Published: 13 April...