Analysis of Wind Speed Series at Four Sites in Mexico
Por:
Pereyra-Castro K., Caetano E., Miranda-Miranda U.
Publicada:
1 ene 2023
Resumen:
Long-term mean and turbulent wind data from four sites in Mexico were examined to understand the full-scale boundary layer wind spectrum for periods between 6 and 9 years. Spectral peaks were evident in 3 × 10–8 Hz (1 year), between 2 × 10–6 Hz and 3 × 10–6 Hz (3.9–5.7 days), and 1 × 10–5 Hz (1 day). Frontal systems (frequency ~ 6 days) were more commonly observed in winter. However, low-frequency maxima were associated with easterly waves during summer in southern Mexico. The daily peak was more intense than that observed in middle latitudes, suggesting thermal circulations and convective systems are the main weather systems in the summer. Downdrafts of convective systems caused wind ramp events in summer, lasting 1 to 6 h. Near-surface diurnal and sub-diurnal wind maxima decreased slightly with height. The spectral gap existed at frequency (f) range from 2 × 10–4 to 2 × 10–3 Hz and rapidly decreased with height. The spectrum of the observed wind speed S(f) at the high-frequency range of the daily peak (10–5 to 2 × 10–4 Hz) followed the f-5/3 curve. These results guide wind numerical prediction models, turbulence studies, and engineering applications. NOAA Rapid Refresh model had a steeper slope in the mesoscale range with ~ f-3 due to energy removal by the models associated with filtering and damping schemes, especially in the summer for the study region. Uncertainties on wind energy management and the implications of energy removal on wind ramp forecast distribution were discussed. © 2023, The Author(s), under exclusive license to Springer Nature Switzerland AG.
Filiaciones:
Pereyra-Castro K.:
Posgrado en Ciencias de la Tierra, Universidad Nacional Autónoma de México, Mexico City, 04510, Mexico
Caetano E.:
Instituto de Geografía, Universidad Nacional Autónoma de México, Mexico City, 04510, Mexico
Miranda-Miranda U.:
Gerencia de Energías Renovables, Instituto Nacional de Electricidad y Energías Limpias, Cuernavaca, 62490, Mexico
|