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Wind Resource Modeling: Uncertainty Quantification in Bangladesh

channary-khin avatar
channary-khin
22 diapositives · 337 Views · Nov 06, 2014

Investigating wind resources in Bangladesh using ERA-Interim, MERRA, and CFSR reanalysis data. Analysis at key measurement sites in Rajshahi, Chandpur, Sitakunda, Inani Beach, and Rangpur. Comparison of annual wind speeds to determine wind potential.

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  1. Wind Resource Modeling & Uncertainty Quantification for Wind Resource Assessment: Application to Bangladesh

  2. Task 1: • ERA Interim, MERRA and CFSR reanalysis wind investigations at NREL Phase 1 meteorological measurement sites in Bangladesh

  3. Phase I Sites Rajshahi24.170350°, 88.907340° Chandpur23.211152°, 90.642340° Sitakunda22.603917°, 91.660083° InaniBeach 21.147340°, 92.075831°  Rangpur25.606600°, 89.068770°

  4. Phase I Sites

  5. ERA-Interim annual wind at Rangpur site(25.606600°, 89.068770° ) Rangpur ERA-Interim 5

  6. MERRA annual wind at Rangpur site(25.606600°, 89.068770° ) Rangpur MERRA 6

  7. CFSR annual wind at Rangpur site(25.606600°, 89.068770° ) Rangpur CFSR 7

  8. ERA-Interim annual wind at Rajshahi site(24.170350°, 88.907340° ) Rajshahi ERA-Interim 8

  9. MERRA annual wind at Rajshahi site(24.170350°, 88.907340° ) Rajshahi MERRA 9

  10. CFSR annual wind at Rajshahi site(24.170350°, 88.907340° ) Rajshahi CFSR 10

  11. ERA-Interim annual wind at Chandpur site(23.211152°, 90.642340° ) Chandpur ERA-Interim 11

  12. MERRA annual wind at Chandpur site(23.211152°, 90.642340° ) Chandpur MERRA 12

  13. CFSR annual wind at Chandpur site(23.211152°, 90.642340° ) Chandpur CFSR 13

  14. ERA-Interim annual wind at Sitakunda site(22.603917°, 91.660083°) Sitakunda ERA-Interim 14

  15. MERRA annual wind at Sitakunda site(22.603917°, 91.660083°) Sitakunda MERRA 15

  16. CFSR annual wind at Sitakunda site(22.603917°, 91.660083°) Sitakunda CFSR 16

  17. ERA-Interim annual wind at Inani Beach site(21.147340°, 92.075831°) Inani Beach ERA-Interim 17

  18. MERRA annual wind at Inani Beach site(21.147340°, 92.075831°) Inani Beach MERRA 18

  19. CFSR annual wind at Inani Beach site(21.147340°, 92.075831°) Inani Beach CFSR 19

  20. Summary • Except on the coast MERRA winds are consistently stronger than ERA-Interim and CFSR winds • ERA-Interim and CFSR winds are similar • The strongest winds are at Sitakunda and Chandpur

  21. Notes • Mean wind speed was computed from mean wind components, based on the climatological products offered by ERA, MERRA and CFSR. • Cancellations can occur on scalar quantities during the averaging process (e.g. same wind speed but opposite direction). This may explain the weak annual winds. • NCAR is recomputing the annual winds from wind speed. Early results on ERA-Interim (1979-1987) shows that annual winds can be twice as large

  22. wind speed vs wind components averaging Wind speed average ERA-Interim 1979-1987 Wind components average ERA-Interim 1979-1987