Springer Nature is making Coronavirus research free. View research | View latest news | Sign up for updates

La durée d'insolation au centre de la Cuvette Congolaise

  • 23 Accesses

Summary

Continuous records of sunshine are available since 1945. These records are carefully checked and interruptions are interpolated by aid of a second station nearby. The homogenized data indicate generally more sunshine from December to May and 15% less from July to November. The fluctuations from one year to the other are rather great, only 1736 hours in 1948 but 2135 hours in 1956. The daily variation is nearly symmetric at M'Bandaka compared to Kinshasa-Binza where are much more clouds in the morning and less in the afternoon. The energetic measurements of global radiation since 1961 show a pronounced minimum in July 346 cal/cm2 d, a secondary maximum in October 416 cal/cm2 d and the principal maximum of 445 cal/cm2 d in March and April. These values are rather low due to clouds as well as to atmospheric turbidity.

This is a preview of subscription content, log in to check access.

Bibliographie

  1. [1]

    M. De Coster etW. Schüepp,Le rayonnement solaire à Stanleyville (Kisangani) ARSC in 8° nouvelle série II, 1 Cl. Sc. nat. Bruxelles (1955).

  2. [2]

    B. Ikwa,Le dépouillement des héliographes Campbell-Stokes. Service Météorologique Léopoldville-Binza (1962).

  3. [3]

    L. Hostaux etB. Ikwa,Données du rayonnement solaire à Léopoldville (Kinshasa) 1953 à 1962. Pub. 46 Service Météorologique du Congo Bruxelles (1963).

  4. [4]

    Rapports de la IVè Session du GTR-AR-I (Groupe de Travail pour le Rayonnement)de l'Organisation Météorologique Mondiale. Tunis 1961 et Léopoldville (Kinshasa) 1962.

  5. [5]

    W. Köppen,Das geographische System der Klimate, Handb. d. Klimatologie I/C Berlin (1936).

  6. [6]

    W. Schüepp,Le rayonnement solaire à Léopoldville (Kinshasa), Pub. 3 Service Météorologique IRCB in 8° XXV 4 Bruxelles (1954).

  7. [7]

    W. Schüepp L'influence du fleuve au climat étudié à l'éxemple du rayonnement à Léopoldville (Kinshasa), Misc., Geofisica Angola, Luanda (1956).

  8. [8]

    W. Schüepp,La conversion du rayonnement sphérique en rayonnement global Archiv. Met. Geoph. Biokl. B. 10, (1960).

  9. [9]

    Bulletin Trimestriel du Rayonnement, Meteorological Office Pretoria (1952 to 1962).

  10. [10]

    Solar radiation and Radiation Balance Data, USSR Hydro-Meteor. Service Voeikov-Observatory Leningrad (since 1967).

Download references

Author information

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Ikwa, B. La durée d'insolation au centre de la Cuvette Congolaise. PAGEOPH 91, 218–226 (1971). https://doi.org/10.1007/BF00879569

Download citation