Comparison of SAR Wind Speed Retrieval Algorithms for Evaluating Offshore Wind Energy Resources

K. Kozai; T. Ohsawa; Y. Takeyama; S. Shimada; R. Niwa; Charlotte Bay Hasager; Merete Badger

Comparison of SAR Wind Speed Retrieval Algorithms for Evaluating Offshore Wind Energy Resources

K. Kozai
, T. Ohsawa
, Y. Takeyama
, S. Shimada
, R. Niwa
, Charlotte Bay Hasager
, Merete Badger

Kobe University
National Institute of Advanced Industrial Science and Technology

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research

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Abstract

Envisat/ASAR-derived offshore wind speeds and energy densities based on 4 different SAR wind speed retrieval algorithms (CMOD4, CMOD-IFR2, CMOD5, CMOD5.N) are compared with observed wind speeds and energy densities for evaluating offshore wind energy resources. CMOD4 ignores effects of atmospheric stability, while CMOD5.N assumes a neutral condition. By utilizing Monin-Obukov similarity theory in the inverse LKB code, equivalent neutral wind speeds derived from CMOD5.N are converted to stability dependent wind speeds (CMOD5N_ SDW). Results of comparison in terms of energy density indicate the CMOD5N_SDW shows the lowest errors than the other algorithms.

Original language	English
Title of host publication	Proceedings (CD-ROM)
Publisher	Techno-Ocean Network
Publication date	2010
Pages	007
Publication status	Published - 2010
Event	Techno-Oceaqn 2010: A new Era of the ocean - Kobe, Japan Duration: 14 Oct 2010 → 16 Oct 2010

Conference

Conference	Techno-Oceaqn 2010
Country/Territory	Japan
City	Kobe
Period	14/10/2010 → 16/10/2010

Keywords

Wind power meteorology
Wind Energy

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@inproceedings{c9ddd05760f14548b4b001ef73794111,

title = "Comparison of SAR Wind Speed Retrieval Algorithms for Evaluating Offshore Wind Energy Resources",

abstract = "Envisat/ASAR-derived offshore wind speeds and energy densities based on 4 different SAR wind speed retrieval algorithms (CMOD4, CMOD-IFR2, CMOD5, CMOD5.N) are compared with observed wind speeds and energy densities for evaluating offshore wind energy resources. CMOD4 ignores effects of atmospheric stability, while CMOD5.N assumes a neutral condition. By utilizing Monin-Obukov similarity theory in the inverse LKB code, equivalent neutral wind speeds derived from CMOD5.N are converted to stability dependent wind speeds (CMOD5N\_ SDW). Results of comparison in terms of energy density indicate the CMOD5N\_SDW shows the lowest errors than the other algorithms.",

keywords = "Wind power meteorology, Wind Energy, Vindkraftmeteorologi, Vindenergi",

author = "K. Kozai and T. Ohsawa and Y. Takeyama and S. Shimada and R. Niwa and Hasager, \{Charlotte Bay\} and Merete Badger",

year = "2010",

language = "English",

pages = "007",

booktitle = "Proceedings (CD-ROM)",

publisher = "Techno-Ocean Network",

note = "Techno-Oceaqn 2010 : A new Era of the ocean ; Conference date: 14-10-2010 Through 16-10-2010",

}

TY - GEN

T1 - Comparison of SAR Wind Speed Retrieval Algorithms for Evaluating Offshore Wind Energy Resources

AU - Kozai, K.

AU - Ohsawa, T.

AU - Takeyama, Y.

AU - Shimada, S.

AU - Niwa, R.

AU - Hasager, Charlotte Bay

AU - Badger, Merete

PY - 2010

Y1 - 2010

N2 - Envisat/ASAR-derived offshore wind speeds and energy densities based on 4 different SAR wind speed retrieval algorithms (CMOD4, CMOD-IFR2, CMOD5, CMOD5.N) are compared with observed wind speeds and energy densities for evaluating offshore wind energy resources. CMOD4 ignores effects of atmospheric stability, while CMOD5.N assumes a neutral condition. By utilizing Monin-Obukov similarity theory in the inverse LKB code, equivalent neutral wind speeds derived from CMOD5.N are converted to stability dependent wind speeds (CMOD5N_ SDW). Results of comparison in terms of energy density indicate the CMOD5N_SDW shows the lowest errors than the other algorithms.

AB - Envisat/ASAR-derived offshore wind speeds and energy densities based on 4 different SAR wind speed retrieval algorithms (CMOD4, CMOD-IFR2, CMOD5, CMOD5.N) are compared with observed wind speeds and energy densities for evaluating offshore wind energy resources. CMOD4 ignores effects of atmospheric stability, while CMOD5.N assumes a neutral condition. By utilizing Monin-Obukov similarity theory in the inverse LKB code, equivalent neutral wind speeds derived from CMOD5.N are converted to stability dependent wind speeds (CMOD5N_ SDW). Results of comparison in terms of energy density indicate the CMOD5N_SDW shows the lowest errors than the other algorithms.

KW - Wind power meteorology

KW - Wind Energy

KW - Vindkraftmeteorologi

KW - Vindenergi

M3 - Article in proceedings

SP - 007

BT - Proceedings (CD-ROM)

PB - Techno-Ocean Network

T2 - Techno-Oceaqn 2010

Y2 - 14 October 2010 through 16 October 2010

ER -

Comparison of SAR Wind Speed Retrieval Algorithms for Evaluating Offshore Wind Energy Resources

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