IDEAS home Printed from https://ideas.repec.org/a/eee/renene/v17y1999i3p319-338.html
   My bibliography  Save this article

How anthropogenic activities influence terrestrial heat/temperature patternsfn2fn2An invited paper presented at the international conference on Current Research Trends in the field of Renewable Energy held in Nairobi from 17–20 February 1998

Author

Listed:
  • Njau, Ernest C

Abstract

It is shown analytically that continuous interactions involving earthward extraterrestrial solar energy, the Earths spinning (and hence solar energy sampling) motion, and variation in the Sun–Earth distance give rise to large heat energy oscillations at the seasonal cycle frequency as well as at the frequencies of the solar cycles. These heat energy oscillations interact together to form some heat energy patterns (HEPs) made up of large seasonal oscillations that are themselves significantly amplitude-modulated by the large energy oscillations at the frequencies of solar cycles. Formation and characteristics of the HEPs are out of control or influence by man. But the heat/temperature variations that actually characterise the surface-atmosphere system (SAS) result from multiplicative interactions between the HEPs (whose formation is out of mans influence) and SAS characteristics (which can be influenced by man) . Since the influences of anthropogenic activities are mostly confined to the latter characteristics, we conclude that such activities can influence terrestrial heat/temperature variations only by changing some multiplicative terms attached to the HEPs and hence to solar forcing contributions. Finally, application of the analysis mentioned above to past global temperature records has led us into concluding that a new solar cycle exists at a period at or slightly greater than 320,000 years. Some physical justification for existence of this apparently new solar cycle is given.

Suggested Citation

  • Njau, Ernest C, 1999. "How anthropogenic activities influence terrestrial heat/temperature patternsfn2fn2An invited paper presented at the international conference on Current Research Trends in the field of Renewable Energy," Renewable Energy, Elsevier, vol. 17(3), pages 319-338.
  • Handle: RePEc:eee:renene:v:17:y:1999:i:3:p:319-338
    DOI: 10.1016/S0960-1481(98)00755-1
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0960148198007551
    Download Restriction: Full text for ScienceDirect subscribers only

    File URL: https://libkey.io/10.1016/S0960-1481(98)00755-1?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    References listed on IDEAS

    as
    1. Njau, Ernest C., 1998. "Amplitude-modulating periodicities in global and regional heat/temperature variations," Renewable Energy, Elsevier, vol. 13(3), pages 295-303.
    2. Njau, Ernest C., 1996. "Generalised theory of ENSO and related atmospheric phenomena," Renewable Energy, Elsevier, vol. 7(4), pages 339-352.
    3. Njau, Ernest C., 1997. "Existence and possible causes of some large-scale changes in temperature patterns," Renewable Energy, Elsevier, vol. 11(4), pages 401-408.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Njau, Ernest C, 1999. "Technical note Some new characteristics of El Nino events," Renewable Energy, Elsevier, vol. 17(2), pages 243-253.
    2. Njau, E.c, 1999. "Some new relationships between temperature variations and sunspot cycles—1. Long-period variations," Renewable Energy, Elsevier, vol. 18(1), pages 25-33.
    3. Njau, Ernest C, 2000. "New evidence for imminent change in global temperature patterns," Renewable Energy, Elsevier, vol. 20(2), pages 129-134.
    4. Njau, E.c, 1999. "Some causes of rapid changes in temperature patterns," Renewable Energy, Elsevier, vol. 18(2), pages 157-166.
    5. Njau, Ernest C., 1998. "Amplitude-modulating periodicities in global and regional heat/temperature variations," Renewable Energy, Elsevier, vol. 13(3), pages 295-303.
    6. Njau, Ernest C., 2000. "Some new relationships between temperature variations and sunspot cycles—2. Short-period variations," Renewable Energy, Elsevier, vol. 19(4), pages 565-577.
    7. Njau, Ernest C., 1997. "A new analytical model for temperature predictions," Renewable Energy, Elsevier, vol. 11(1), pages 61-68.
    8. Njau, Ernest C., 1997. "Existence and possible causes of some large-scale changes in temperature patterns," Renewable Energy, Elsevier, vol. 11(4), pages 401-408.
    9. Njau, E.c., 1999. "Differential variations of maximum and minimum temperatures," Renewable Energy, Elsevier, vol. 18(2), pages 147-155.

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:eee:renene:v:17:y:1999:i:3:p:319-338. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Catherine Liu (email available below). General contact details of provider: http://www.journals.elsevier.com/renewable-energy .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.