For a hypothetical planet on a highly eccentric orbit, we have calculated the osculating orbital parameters and its closest approaches to Earth and Moon over a period of 750 kyr. The approaches which are close enough to influence the climate of the Earth form a pattern comparable to that of the past climatic changes, as recorded in deep sea sediments and polar ice cores.

Correlative species distribution models have long been the predominant approach to predict species' range responses to climate change. Recently, the use of dynamic models is increasingly advocated for because these models better represent the main processes involved in range shifts and also simulate transient dynamics. A well-known problem with the application of these models is the lack of dat...

The design of photovoltaic or solar systems and estimating their performance require knowledge the intensity radiation. measurement this parameter for some sites in Algeria is unfortunately not obvious. However, researchers are moving towards modeling, estimation prediction. To model global radiation Algeria, we must take into account geographical climatic parameters such as sunshine duration, ...