seasonal variation

(redirected from Seasonality Factor)
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seasonal variation

[′sēz·ən·əl ‚ver·ē′ā·shən]
(geophysics)
The variation of any parameter of the upper atmosphere with season; for example, the variation of ion densities of different parts of the ionosphere, and the resulting variation in transmission of radio signals over large distances.
References in periodicals archive ?
A key financial consideration with opening standalone stores would be getting the merchandising mix right and addressing the seasonality factor.
To exclude the influence of other seasonal rhythms on the results--such as seasonal changes in employment levels--the seasonality factor was removed mathematically from the data so that only the influence of sunlight was measured on the frequency of suicides.
Readers are cautioned to keep the seasonality factor in view, while comparing the estimates with the previous quarter of 2012.
In addition to the seasonality factor, deteriorating demand for steel products is making steel producers edgy about their falling profitability, which in turn is making them aggressive with coal producers during price negotiations.
Kuschke however said he expect figures to normalise in the next few months due to the seasonality factor, as well as supply issues mentioned by some dealers.
Because of the nested nature of the seasonality factor, the analysis results in an adjustment factor for each month, for each year for the eleven-year sample period.
The current situation in the foreign exchange market in Kyrgyzstan, taking into account the seasonality factor, is generally characterized by relative stability, said the report.
Ettinger expects that Jennie-O's growth in the next quarter will not be as significant as in the previous quarter given the seasonality factor, which occurs during the Thanksgiving and Christmas periods, whereby consumers tend to buy more whole birds.
Daren Wiseman, senior editor of Black Book, says: "The seasonality factor which means that convertibles sell best in summer and 4x4s do better in winter is fading fast.
The seasonality factor which means that convertibles sell best in summer and 4x4s do better in the winter is fading fast,' said Daren Wiseman, Black Book editor.
He also mentioned the seasonality factor, whereby feed production tends to be lower in the first quarter of each year.
The fourth Section is devoted to consumption of limestone in Russia and contains supply-demand balance of limestone, as well as presents an estimate of sectoral (by end-uses) and regional pattern of limestone consumption with analysis of effect of seasonality factor on the products supplies; description of basic enterprise-consumers of limestone in Russia in also given here.