Waterbirds as bio-indicators of seasonal – climatic changes in river basin properties: Eight years monthly monitoring in lower Sanaga, Cameroon

2009 ◽  
Vol 6 (29) ◽  
pp. 292021
Author(s):  
Gordon Ajonina ◽  
J Amougou ◽  
I Ayissi ◽  
P Ajonina ◽  
E Ntabe ◽  
...  
2009 ◽  
Vol 5 (S260) ◽  
pp. 87-95 ◽  
Author(s):  
Ivan Šprajc

AbstractThe observation of the sky had an important rôle among the Maya, Aztecs and other prehispanic peoples of Mesoamerica. Their familiarity with the regularities of the apparent motion of the Sun, the Moon and bright planets is attested in a large amount of astronomical data contained in codices and monumental hieroglyphic inscriptions, as well as in their sophisticated calendrical system. On the other hand, the study of architectural alignments has disclosed that civic and ceremonial buildings were largely oriented on astronomical grounds, mostly to sunrises and sunsets on certain dates, allowing the use of observational calendars that facilitated a proper scheduling of agricultural and the associated ritual activities in the yearly cycle. Both accurate knowledge and other astronomically-derived concepts reveal that the significance attributed to certain celestial events by the ancient Mesoamericans can be explained in terms of the relationship of these phenomena with specific environmental and cultural facts, such as seasonal climatic changes and subsistence strategies. It was particularly due to its practical utility that astronomy, intertwined with religious ideas and practices, had such an important place in the worldview and, consequently, in the cosmologically substantiated political ideology of Mesoamerican societies


2016 ◽  
Vol 62 (5) ◽  
pp. 715-728 ◽  
Author(s):  
Djigbo Félicien Badou ◽  
Evison Kapangaziwiri ◽  
Bernd Diekkrüger ◽  
Jean Hounkpè ◽  
Abel Afouda

2021 ◽  
pp. 247-254
Author(s):  
Gohar Stepanyan

In the Collection of Armenian proverbs by Aram Ghanalanyan the proverbs in which the Armenian traditional holidays are mentioned constitute a certain number. We suggest uniting in two groups the proverbs, which have holiday references, diffused in different thematic sections and chapters, as well as in the appendices of the collection of proverbs. These two groups include: sayingsproverbs, which are based on a) interrelation of the time and holiday, and b) one or another attribute of the holidays. In a part of sayings-proverbs, referring to time, the question is directly about the time in the semantic context, according to which everything has its time. In case of other proverbs, the question refers to the seasonal-climatic changes of the time. The latter are based on the folk ecological knowledge, preserved in the feast tradition. In this group of proverbs the holidays play a role of the real medium of time calculation. The following series of proverbs present primary associations, connected to the feast, specific descriptors of the holidays, which are, as a rule, more connected to their external, secular, rather than deep mythological aspect.


2013 ◽  
Vol 38 (2) ◽  
pp. 119-125
Author(s):  
V. A. Bel’chikov ◽  
A. Ya. Polunin ◽  
Yu. A. Simonov ◽  
A. V. Khristoforov

2012 ◽  
Vol 518-523 ◽  
pp. 5798-5804
Author(s):  
Xiang Yi Ding ◽  
Yang Wen Jia

Many observational facts and studies have shown that the climatic conditions in the Hai River Basin, which is the political and cultural centre of China, changed significantly over last half of the 20th century. This study attempts to evaluate the variability of climatic elements such as precipitation and temperature in the basin based on observed meteorological data, and the temporal variations and sudden changes of precipitation and temperature during past 40 years (1961-2000) are analyzed combining moving-average and linear regression with Mann-Kendall method. In addition, the observed climatic changes are attributed to different factors including natural variability and anthropogenic forcing using the fingerprint-based attribution method. The results indicate that: 1) during 1961-2000, the precipitation slightly decreased and the estimated sudden change time was 1965, the temperature significantly increased and the estimated sudden change time was 1964; 2) natural climate variability may be the factors responsible for the observed precipitation changes during the past 40 years in the basin, while anthropogenic forcing may be the main factors responsible for the observed temperature changes during the past 40 years in the basin.


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