A Basic Wind Speed Map for Oman

A.S. Alnuaimi, M.A. Mohsin, K.H. Al-Riyami

Abstract


The aim of this research was to develop the first basic wind speed map for Oman. Hourly mean wind speed records from 40 metrological stations were used in the calculation. The period of continuous records ranged from 4–37 years. The maximum monthly hourly mean and the maxima annual hourly mean wind speed data were analysed using the Gumbel and Gringorten methods. Both methods gave close results in determining basic wind speeds, with the Gumbel method giving slightly higher values. Due to a lack of long-term records in some regions of Oman, basic wind speeds were extrapolated for some stations with only short-term records, which were defined as those with only 4– 8 years of continuous records; in these cases, monthly maxima were used to predict the long-term basic wind speeds. Accordingly, a basic wind speed map was developed for a 50-year return period. This map was based on basic wind speeds calculated from actual annual maxima records of 29 stations with at least 9 continuous years of records as well as predicted annual maxima wind speeds for 11 short-term record stations. The basic wind speed values ranged from 16 meters/second (m/s) to 31 m/s. The basic wind speed map developed in this research is recommended for use as a guide for structural design in Oman.

 


Keywords


Oman, Basic wind speed, Basic wind speed map, Weather stations.

Full Text:

PDF

References


Abohemda MB, Al Shebani MM (2010), Wind load characteristics in Libya, World Academy of Science, Engineering and Technology 63:240-243.

Akosy H, Toprak ZF, Aytek A, Unal NE (2004), Stochastic generation of hourly mean wind speed data. Renewable Energy, Elsevier 29:2111-2131.

Al Maawli SS, Majid TA, Yahya AS (2008), Determination of basic wind speed for building structures in Oman. Proceedings of International Conference on Construction and Building Technology, ICCBT’08, F(22):235-244.

American Society of Civil Engineers (ASCE) (1991), Guidelines for electrical transmission line structural loadings, 1801 Alexander Bell Drive, Reston, Virginia 20191, USA.

An Y, Pandy M (2005), A comparison of methods of extreme wind speed estimation. Journal Wind Engineering and Industrial Aerodynamics, Elsevier 93:535–545.

BS 6399-2: (1997), Loading for buildings part 2. Code of Practice for wind loads. British Standard Institution, London.

Choi E, Tanurdjaja A (2002), Extreme wind studies in Singapore, an area with mixed weather system. Journal Wind Engineering and Industrial Aerodynamics, Elsevier 90:1611–1630.

Dorvlo ASS (2002), Estimating wind speed distribution. Energy Conversion and Management. Pergamon 43:311–2318.

Dyrbye, C, Hansen SO (1999), Wind loads on structures. John Wiley & Sons.

Gibbs T, Browne H, Rocheford B (1981), Code of practice for wind loads for Structural Design. BNS-CP28, sponsored by the Organization of American States, the National Council for Science and Technology and the Barbados Association of Professional Engineers.

Grigoriu M (1984), Estimation of extreme winds from short records. Journal of Structural Engineering ASCE 110(7):1467-1484.

Gringorten I (1963), A plotting rule for extreme probability paper. Journal of Geophysical Research 68(3):813-814.

Gumbel EJ (1958), Statistics of extreme, Colombia University press. New York, NYC, USA.

Harris RI (1996), Gumbel re-visited – a new look at extreme value statistics applied to wind speeds. Journal Wind Engineering and Industrial Aerodynamics 59: 1-22. Holmes J (2001), Wind loading of structures, SPON press.

Kasperski M (2002), A new wind zone map of Germany.Journal Wind Engineering and Industrial Aerodynamics 90:1271–1287.

Kishor CM, Delahay J (2004), Guide to the use of the wind load provisions of ASCE 7-02, 140,ASCE Press.

Kramer C, Gerhardt HJ (1988), Advances in Civil Engineering, Part 1:8, Elsevier Science Publishing Company, 665 Avenue of the Americas, New York, USA.

Lakshmanan N, Gomathinayagam S, Harikrishna P, Abraham A, Ganapathi SC (2009), Basic wind speed map of India with long-term hourly wind data. Currant Science 96(7):911-922.

Minimum Design Loads for Buildings and Other Structures ASCE/SEI-7-10 (2010), American society of civil engineers and the structural engineering institute. ASCE Standard, 1801 Alexander Bell Drive, Reston, Virginia 20191, USA.

Ministry of Transportation and Tele - communication (2014), Directorate General of Civil Aviation and Meteorology – Oman, Annual report.

Sahin A (2003), Hourly wind velocity exceedance maps of Turkey. Energy Conversion and Management 44:549-557.

Simiu E (2009), Wind loading codification in the Americas. Fundamentals for a Renewal, 11th Americas Conference on Wind Engineering, San Juan, PR, USA.

Simiu E, Filliben JJ, Shaver JR (1982), Short-term records and extreme wind speeds. Journal of Structural Division ASCE 108(11):2571-2577.

Simiu E, Heckert N, Filliben J, Johnson S (2001), Extreme wind load estimates based on the Gumbel distribution of dynamic pressures: an assessment. Structural Safety 23:221-229.




DOI: http://dx.doi.org/10.24200/tjer.vol11iss2pp64-78

Refbacks

  • There are currently no refbacks.




Copyright (c) 2017 A.S. Alnuaimi, M.A. Mohsin, K.H. Al-Riyami

Creative Commons License
This work is licensed under a Creative Commons Attribution-NoDerivatives 4.0 International License.

TJER 2017-CC BY-ND

This journal and its content is licensed under a Attribution-NoDerivatives 4.0 International.

Flag Counter