Sentence examples for yearly periodicity from inspiring English sources

The temperature of the Black Sea's upper layer has a marked yearly periodicity.

That yearly periodicity raises red flags for Donald Backer, an astronomer at University of California, Berkeley.

The diagram shows that both measures follow a yearly periodicity, with peaks corresponding to the winter season, which is then more stable than the others.

To achieve appropriate stationary time series, all dependent and independent variables were seasonally differenced with regard to yearly periodicity.

Third, some states exhibit strong yearly periodicity, which seems to be due to patterns in disease reporting.

As yearly periodicity was observed, we estimated seasonal and year-on-year trends in IPD occurrence using Poisson regression models that incorporated sine and cosine oscillators, with 52 week (annual) frequencies (i.e., incorporated fast Fourier transforms) [ 7, 22].

Guided by these findings, we calculated the ensemble average profiles for both the weekly and yearly periodicities.

A Fast Fourier Transform (FFT) was calculated from the time series data, and the results indicated the presence of strong weekly and yearly periodicities in the data.

Our implementation modeled the number of daily visits using linear regression on sine and cosine terms having yearly periodicities to capture seasonal effects, categorical variables for the day of week, and linear and quadratic terms.

The time series of syphilis cases has been studied at the country and state level at the yearly basis (1, 2), and it has been found that syphilis has a periodicity of approximately 10 years (2).

Since the empirical work carried out in this study utilizes monthly data, an added advantage of this index to corruption indicators from other organizations (e.g., World Bank, Freedom House, Transparency International, to mention a few) is its periodicity, since it is calculated on a monthly basis and not on a yearly basis, as is the case elsewhere.