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Subtasks
Subtask A:
Standard Qualification for Solar Resource Products
Subtask Lead Country: Germany
Subtask Leaders:
Prof. Dr. Hans Georg Beyer
The objective of this subtask is to provide the user community
with benchmarked, standardized, validated worldwide solar resource
data sets. Key subtask activities to meet this objective are:
- Select and Qualify Ground Data Sets: this activity will include
a survey and documentation of existing data sources, and the
production and reporting of validation data
- Define Measures of Model Quality for Product Validation: besides
defining measures of model quality, this activity includes the
establishment and documentation of model intercomparison procedures;
- Develop Methodology for Establishing Coherent Benchmarking of
Products;
- Apply Benchmarking Procedures to Subtask C Products: this
activity includes a characterization of model performance as a
function of input data sets.
Subtask B:
Common Structure for Archiving and Accessing Data
Products
Subtask Lead Countries: France
Subtask Leaders: Prof. Lucien WALD
The objective of this Subtask is to provide a user-oriented
information system, such as a distributed data system, for archiving
and accessing solar resource data. Key subtask activities to meet
this objective are:
- Evaluate the Legal Aspects of Accessing Solar Resource Data:
this activity focuses on establishing copyright and proprietary
rights of data that will be made available through the distributed
data system, and to establish appropriate protocols with each
participating institution for making the data generally available to
the public;
- Identify Commonly-Used Software by End Users: this activity
examines available or needed software for use by industry and other
users to access the information system;
- Develop Data Exchange Protocols and Meta-Data: various data
exchange protocols will be examined, and one will be selected and
documented;
- Develop Prototype Data Networking Procedure: a prototype
web-based system will be developed whereby a user can request
information of a certain type and format, and the information system
provides the response or responses that most closely addresses the
request.
- Identify Resource Providers: a worldwide network of data
providers will be established, and the techniques for data exchange
among the providers will be investigated.
- Test the Prototype by Users: this activity defines the prototype
that can be accessed by users, and raises the awareness of the data
exchange system to external users;
- Define Automatic Access by Commercial Applications: This
activity will enable automatic and fast access of resources through
the information system by using commercial applications;
- Develop a Test Application (Solar Micrositing): a case study in
micro siting of a solar energy system will be developed to
demonstrate the benefits of the information system.
Subtask C:
Improved Techniques for Solar Resource
Characterization and Forecasting
Subtask Lead Countries: Germany
Subtask
Leaders: Dr. Detlev Heinemann
The objective of this Subtask is to conduct essential R&D to
improve the accuracy and the spatial and temporal coverage of
current techniques, including the introduction of solar resource
forecasting products. Key activities to meet this objective are:
- Improve Satellite Retrieval Methods for Solar Radiation
Products: This activity will focus on key model input parameters and
methodologies, such as cloud indices, radiative transfer schemes,
aerosol data retrievals, and treatment of snow and other surface
albedo artifacts. The activity also addresses ways of improving the
spatial resolution of satellite-derived broadband solar resource
products.
- Conduct Climatological Analysis of Solar Resources: In order to
ascertain future impacts on system performance due to climate
variations, his activity includes the analysis of long-term surface
and satellite-derived data sets and climate models; specifically
addressing natural long-term fluctuations associated within the
ocean-atmosphere system, such as the Southern Oscillation/El Nino.
- Evaluate Solar Radiation Forecasting Procedures: This activity
investigates different approaches for developing solar resource
forecasts based on global numerical weather predictions and
extrapolation of cloud motion vectors
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