Marion Schroedter-Homscheidt

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We have analysed the upper tropospheric humidity with respect to ice (UTHi) data product obtained from the Television Infrared Observation Satellite (TIROS) Operational Vertical Sounder (TOVS) instrument onboard the National Oceanic and Atmospheric Administration NOAA-14 polar orbiting satellite. While in the production of the official UTHi product values(More)
Monthly mean aerosol optical depth (AOD) over ocean is compared from a total of 9 aerosol retrievals during a 40 months period. Comparisons of AOD have been made both for the entire period and sub periods. We identify regions where there is large disagreement and good agreement between the aerosol satellite retrievals. Signifi-5 cant differences in AOD have(More)
Accurate solar irradiance data are not only of particular importance for the assessment of the radiative forcing of the climate system, but also absolutely necessary for efficient planning and operation of solar energy systems. Within the European project Heliosat-3 a new type of solar irradiance scheme is developed. This new type will be based on(More)
Monthly mean aerosol optical depth (AOD) over ocean is compared from a total of 9 aerosol retrievals during a 40 months period. Comparisons of AOD have been made both for the entire period and sub periods. We identify regions where there is large disagreement and good agreement between the aerosol satellite retrievals. Significant differences in AOD have(More)
A synergetic aerosol retrieval method (SYNAER) to retrieve aerosol optical thickness and type has been developed and validated at DLR-DFD with GOME and ATSR-2, both onboard ERS-2 ([1] and [2]). This method is currently adapted to ENVISAT SCIAMACHY and AATSR and will also be applicable to METOP GOME-2 and AVHRR. Based on 14 months of data in 1997/1998 from(More)
Within the Earth Observation Market and Development (EOMD) programme at the European Space Agency (ESA) the ENVISOLAR project aims at an intensified usage of Earth Observation based information products in the solar energy industries. Existing services for investment decision, plant management, load forecasting and for science and consulting rely on high(More)
  • Wald L, Gschwind B, Lefevre M, Menard L, Wald F, Hoyer-Klick C +12 others
  • 2011
Early achievements towards an automatic assessment of the uncertainty in solar irradiation using web services. Abstract A long standing effort aims at creating and operating an automatic procedure for the assessment of the uncertainty in solar radiation data and the delivery of this information to users. This communication presents the early achievements.(More)
Parameterisation of changes of the solar irradiance at ground level with a specific variable (e.g. solar zenithal angle, aerosol optical depth, altitude, etc.) is often used in operational processes because it saves computational time. This paper deals with the modelling of the vertical profile of downwelling solar irradi-ance for the first two kilometres(More)
Knowledge of the solar resource is essential for the planning and operation of solar energy systems. A number of data bases giving information on solar resources have been developed over the past years. The result is a fragmentation of services each having each own mechanism of access and all are giving different results due to different methods, input data(More)
Exploitation of radiative transfer model for assessing solar radiation: the relative importance of atmospheric constituents. Abstract Solar radiation is modified in its way downwards by the content of the atmosphere. Quantifying the influences of the parameters describing the optical state of the atmosphere is necessary for development of a method for the(More)