Symposium on Palaeomagnetism and Secular Variation
نویسندگان
چکیده
منابع مشابه
Growth variation, final height and secular trend
Growth and body height have always been interesting topics in the public opinion. Particularly the stupendous increase of some 15 to 19 cm in final adult height during the last 150 years in most European countries (the “secular trend”), the concomitant changes in body and head proportions, the tendency towards early onset of sexual maturation, the changes in the age when final height is being r...
متن کاملCompatibility of magnetic imprinting and secular variation
to reach sexual maturity [7] and is thus absent from its natal area for much longer than animals such as salmon and elephant seals [2,3]. Given this long absence, the Kemp’s ridley appears to be particularly susceptible to effects of secular variation if it relies on magnetic imprinting. The modeling results we report here show that the magnetic imprinting hypothesis can account for how the Kem...
متن کاملPolynomial Modelling of Southern African Secular Variation Observations Since 2005
The COMPASS (COmprehensive Magnetic Processes under the African Southern Sub-continent) program forms part of a collaboration project between Germany and South Africa, called Inkaba ye Africa, and aims to investigate the regional geomagnetic field in this area, particularly its evolutionary behaviour. Results obtained from field surveys conducted by the Hermanus Magnetic Observatory (HMO) and ...
متن کاملFour centuries of geomagnetic secular variation from historical records
We present a new model of the magnetic eld at the core{mantle boundary for the interval 1590{1990. The model, called gufm1, is based on a massive new compilation of historical observations of the magnetic eld. The greater part of the new dataset originates from unpublished observations taken by mariners engaged in merchant and naval shipping. Considerable attention is given to both correcti...
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ژورنال
عنوان ژورنال: Geophysical Journal International
سال: 1958
ISSN: 0956-540X,1365-246X
DOI: 10.1111/j.1365-246x.1958.tb00039.x