Heliosat-2
WebIt is concluded that the Heliosat-2 method provides new knowledge about solar radiation in French Guiana. Acknowledgements The authors are grateful to Météo-France for supplying ground measurement data. They acknowledge the positive role of the reviewers whose comments helped in increasing the quality of this article. WebJun 21, 2024 · As stated in the introduction, Heliosat-V (HSV) is a method approximating the attenuation of DSSI radiation by clouds with a cloud index, n. Here, the cloud index components are reflectances considered at the TOA and corresponding to the satellite radiometer viewing geometry and spectral sensitivity. Reflectances are defined by the …
Heliosat-2
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WebThis will automatically download and load any required SPICE kernels (using spiceypy).Note that kernel or data files will be stored in ~/.heliosat by default. As this may use up alot of disk space you can alternatively change the default path by setting the environment variable HELIOSAT_DATAPATH.. Querying data (any tz-unaware datetime objects are assumed … Webthen describes the several developed improvements, which define the method Heliosat 2. Finally, it presents comparisons with ground measurements, which quantify the accuracy of these satellite estimations. 2 THE METHOD HELIOSAT 1 The principle of the method Heliosat 1 is the construction of a "cloud index" resulting from a comparison of
WebThe recent method Heliosat 2 is used. It offers several improvements in operation and accuracy with respect to previous methods. Typical bias for irradiance for a month is 3 W m(-2). A database is being produced, covering the Eastern Atlantic Ocean, Europe and Africa from 1985 onwards and for each day. WebThe satellite-derived solar radiation database HelioClim-3 is limited to the coverage of the Meteosat Second Generation satellite, i.e. -66° to 66° both in latitude and longitude. The objective is to develop an operational service to process the real time Meteosat Second Generation images now available on the Indian ocean for the IODC service.
WebJan 23, 2024 · The latest version of the Heliosat family, Heliosat-4, is a full physical model composed of two models mostly based on physically derived Look-Up Tables (Qu et al. 2024 ): the McClear model for solar irradiance under clear sky conditions and the McCloud model for determining the extinction of irradiance due to clouds.
WebIt is concluded that the Heliosat-2 method provides new knowledge about solar radiation in French Guiana. Acknowledgements The authors are grateful to Météo-France for …
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