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)
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)
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)
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)
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)
Knowledge of the solar energy resource is essential for the planning and operation of solar energy systems. In past years there has been substantial European and national funding to develop information systems on solar radiation data, leading to the situations that several data bases exist in parallel, developed by different approaches, various spatial and(More)
Our energy production increasingly depends on renewable energy sources, which impose new challenges for distributed and decentralized systems. One problem is that the availability of renewable energy sources such as wind and solar is not continuous as it is affected by meteorological factors. The challenge is to develop forecast methods capable of(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)
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)