A comparison of ASCAT wind measurements and the HIRLAM model over the Baltic Sea

• Autorzy: Služenikina J. , Männik A.
• Języki publikacji: EN

Abstrakty

EN

This paper presents a comparison of the wind data measured by the ASCAT polar-orbiting satellite scatterometer and winds forecast by the numerical weather prediction model HIRLAM in the Baltic Sea region during the stormy season in 2009. Two different resolution models were used in the comparison. Mutual quality and uncertainty characteristics of the measurements and predictions are determined. The results of the study show that the ASCAT wind data are well correlated with the HIRLAM predicted winds, which raises the credibility of both data sources in operational and hindcasting applications over the Baltic Sea. A case of phase error in a HIRLAM forecast of cyclonic activity over the Baltic Sea is discussed.

Słowa kluczowe

EN

ASCAT; scatterometer winds; HIRLAM model; Baltic Sea; numerical weather prediction

• Wydawca: Polish Academy of Sciences, Institute of Oceanology ; Elsevier
• Czasopismo: Oceanologia
• Rocznik: 2011
• Tom: No. 53 (1-TI)
• Strony: 229--244
• Opis fizyczny: Bibliogr. 18 poz., tab., wykr.

Twórcy

autor

Služenikina J.

autor

Männik A.

• Tallinn University of Technology, Ehitajate tee 5, Tallinn 19086, Estonia,

Bibliografia

• 1.Atlas R., Hoffman R.N., Leidner S.M., Sienkiewicz J., Yu T.-W., Bloom S.C., Brin E., Ardizzone J., Terry J., Bungato D., Jusem J.C., 2001, The effects of marine winds from scatterometer data on weather analysis and forecasting, Bull. Am. Meteorol. Soc., 82, 1965-1990. doi:10.1175/1520-0477(2001)082<1965:TEOMWF>2.3.CO;2
• 2.Bentamy A., Croize-Fillon D., Perigaud C., 2008, Characterization of ASCAT measurements based on buoy and QuikSCAT wind vector observations, Ocean Sci., 4 (4), 265-274. doi:10.5194/os-4-265-2008
• 3.Chelton D.B., Freilich M.H., 2005, Scatterometer-Based Assessment of 10-m Wind Analyses from the Operational ECMWF and NCEP Numerical Weather Prediction Models, Mon. Weather Rev., 133 (2), 409-429. doi:10.1175/MWR-2861.1
• 4.Figa-Salda~na J., Wilson J.W., Attema E., Gelsthorpe R., Drinkwater M.R., Stoffelen A., 2002, The advanced scatterometer (ASCAT) on the meteorological operational (MetOp) platform: A follow on for the European wind scatterometers, Can. J. Remote Sens., 28 (3), 404-412.
• 5.Funkquist L., Kleine E., 2000, An introduction to HIROMB, an operational baroclinic model for the Baltic Sea, Tech. Rep. SMHI., Norrköping.
• 6.Geernaert G. L., Katsaros K.B., 1986, Incorporation of stratification effects on the oceanic roughness length in the derivation of the neutral drag coefficient, J. Phys. Oceanogr., 16 (9), 1580-1584. doi:10.1175/1520-0485(1986)016<1580:IOSEOT>2.0.CO;2
• 7.Gelsthorpe R.V., Schied E., Wilson J. J.W., 2000, ASCAT-MetOpés advanced scatterometer, ESA Bull. 102, [http://esapub.esrin.esa.it/bulletin/bullet102_htm].
• 8.Hersbach H., 2010, Assimilation of scatterometer data as equivalent-neutral wind, Tech. Memo., ECMWF, [http://www.ecmwf.int/publications/library/ecpublications/ pdf/tm/601-700/tm629.pdf].
• 9.Keevallik S., Männik A., Hinnov J., 2010, Comparison of HIRLAM wind data with measurements at Estonian coastal meteorological station, Est. J. Earth Sci., 59 (1), 90-99. doi:10.3176/earth.2010.1.07
• 10.Portabella M., 2002, Wind field retrieval from satellite radar systems, Thesis, Univ. Barcelona, 207 pp., [http://www.knmi.nl/publications/fulltexts/phd thesis. pdf].
• 11.Stoffelen A., 1998, Scatterometry, Thesis, Univ. Utrecht., [http://igitur-archive.library.uu.nl/dissertations/01840669/inhoud.htm].
• 12.Stoffelen A., Portabella M., Verhoef A., Verspeek J., Vogelzang J., 2006, Mesoscale winds from the new ASCAT scatterometer, KNMI Res. Biennial Rep. 2005-2006, [http://www.knmi.nl/research/biennial/05-06ASCAT.pdf].
• 13.Stoffelen A., Vogelzang J., Verhoef A., 2010, Verification of scatterometer winds, 10th Int. Winds Workshop, [http://www.knmi.nl/publications/fulltexts/scat iww10.pdf].
• 14.Undén P., Rontu L., Järvinen H., Lynch P., Calvo J., Cats G., Cuxart J., Eerola K., Fortelius C., Garcia-Moya J.A., Jones C., Lenderink G., McDonald A., McGrath R., Navascues B., Nielsen N.W., Ødegaard V., Rodrigues E., Rummukainen M., Rõõm R., Sattler K., Sass B.H., Savijärvi H., Schreur B.W., Sigg R., The H., Tijm A., 2002, HIRLAM-5 scientific documentation, [http://www.hirlam.org/].
• 15.Verhoef A., Stoffelen A., 2009, Validation of ASCAT 12.5-km winds, version 1.2., SAF/OSI/CDOP/KNMI/TEC/RP/147, EUMETSAT Tech. Rep., [http://www.knmi.nl/scatterometer/publications/].
• 16.Verhoef A., Stoffelen A., 2010, ASCAT wind product user manual version 1.8, SAF/OSI/CDOP/KNMI/TEC/MA/126, EUMETSAT, [http://www.knmi.nl/scatterometer/publications/].
• 17.Verspeek J., Portabella M., Stoffelen A., Verhoef A., 2008, Calibration and validation of ASCAT winds, version 4.0, Doc. Extern. Proj., SAF/OSI/KNMI/TEC/TN/163, EUMETSAT.
• 18.Von Ahn J., Sienkiewicz J.M., Chang P., 2006, Operational impact of QuikSCAT winds at the NOAA Ocean Prediction Center, Weather Forecast., 21 (4), 523-539. doi:10.1175/WAF934.1