Annual variation


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Related to Annual variation: seasonal variation
(Astron.) the yearly change in the right ascension or declination of a star, produced by the combined effects of the precession of the equinoxes and the proper motion of the star.

See also: Variation

References in periodicals archive ?
Develop water regulation schedules and capacities that promote the protection of wetlands and flatwoods communities, provide annual variation in water depth and hydroperiod in response to climatic inputs, and enhance habitats for wildlife without adversely affecting adjacent landowners.
Indications for a Diurnal and Annual Variation in the Anisotropy of Diffusion Patterns - A Reanalysis of Data Presented by J.
Recurring mobile service revenue recorded annual variation of +5.
The report said the differing results highlight how sectors are vulnerable to annual variation.
Upto November 2013, the average inflation rate, measured by annual variation in the Consumer Price Index (CPI) for the Sultanate, stood lower at 1.
Parameters of nighttime and daytime temperatures were predictive in this model; the annual variation (amplitude) and the mean absolute temperature values scored high in the ranking.
The findings of the study showed a clear annual variation in the decay rate of a radioactive isotope called chlorine 36, with the highest rate in January and February and the lowest rate in July and August, over a period from July 2005 to June 2011.
Hence, it was with the goal of quantifying and understanding the basis of annual variation in reproductive traits of bullsnakes (Pituophis catenifer sayi) that this study was undertaken.
Up to September 2011, the average inflation rate, measured by annual variation in the Consumer Price Index (CPI) for the Sultanate, stood higher at 4.
They paid special attention to the annual variation in dry season rainfall.
of the values of relative soil moisture and of the maximum annual variation decreased with decreasing means of topsoil moisture.
Less than 20 percent of the annual variation in per-capita consumption can be explained by changes in the level of efficiency savings, while energy prices explain 40 percent of the annual variation.
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