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Campbell-stokes data for radiation calibration purposes in East Africa

Campbell-Stokes Meßdaten zur Kalibrierung der Einstrahlung in Ostafrika

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Summary

It is shown from literature research that constants in the statistical relationship between total global solar radiation and sunshine duration are now well established for East Africa. Taking into account the differences in data collection errors with other simple methods of solar radiation determination, we show Campbell-Stokes data to be suitable for checking, calibrating or temporarily replacing these other methods where no calibrated pyranometers are available in the tropics. An example is given for Gunn-Bellanis.

Zusammenfassung

Es wird gezeigt, daß auf Grund von Angaben in der Literatur die Konstanten für die statistische Beziehung zwischen der Globalstrahlung und der Sonnenscheindauer für Ostafrika nun hinreichend gesichert angegeben werden können. Werden die Unterschiede der Fehler bei der Datenerfassung mit anderen einfachen Meßmethoden der solaren Einstrahlung berücksichtigt, kann gezeigt werden, daß Campbell-Stokes Meßwerte gut geeignet sind zur Überprüfung, Kalibrierung oder zum zeitweisen Ersatz sonstiger Meßmethoden, wo in den Tropen keine geeichten Pyranometer verfügbar sind. Ein Beispiel wird gegeben für Gunn-Bellanis.

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Authors and Affiliations

  1. Physics Department, University of Dar es Salaam, P. O. Box 35063, Dar es Salaam, Tanzania

    C. J. Stigter &  J. M. Waryoha

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  1. C. J. Stigter
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  2. J. M. Waryoha
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Stigter, C.J., Waryoha, J.M. Campbell-stokes data for radiation calibration purposes in East Africa. Arch. Met. Geoph. Biocl., Ser. B 29, 99–109 (1981). https://doi.org/10.1007/BF02278194

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