Comparison and analysis of Envisat ASAR ocean wave spectra with buoy data in the northern Pacific Ocean

doi:10.1007/s00343-011-9926-8

IOCAS-IR > 海洋环流与波动重点实验室

	Comparison and analysis of Envisat ASAR ocean wave spectra with buoy data in the northern Pacific Ocean
	Ren Qifeng 2,3; Zhang Jie1,4 ; Meng Junmin 1; Song Pingjian 1
	2011
发表期刊	CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY
ISSN	0254-4059
卷号	29 期号:1 页码:10-17
文章类型	Article
摘要	The validation and assessment of Envisat advanced synthetic aperture radar (ASAR) ocean wave spectra products are important to their application in ocean wave numerical predictions. Six-year ASAR wave spectra data are compared with one-dimensional (1D) wave spectra of 55 co-located moored buoy observations in the northern Pacific Ocean. The ASAR wave spectra data are firstly quality control filtered and spatio-temporal matched with buoy data. The comparisons are then performed in terms of 1D wave spectra, significant wave height (SWH) and mean wave period (MWP) in different spatio-temporal offsets respectively. SWH comparison results show the evident dependence of SWH biases on wind speed and the ASAR SWH saturation effect. The ASAR wave spectra tend to underestimate SWH at high wind speeds and overestimate SWH at low wind speeds. MWP comparison results show that MWP has a systematic bias and therefore it should be bias-modified before used. The comparisons of 1D wave spectra show that both wave spectra agree better at low frequencies than at high frequencies, which indicates the ASAR data cannot resolve the high frequency waves.; The validation and assessment of Envisat advanced synthetic aperture radar (ASAR) ocean wave spectra products are important to their application in ocean wave numerical predictions. Six-year ASAR wave spectra data are compared with one-dimensional (1D) wave spectra of 55 co-located moored buoy observations in the northern Pacific Ocean. The ASAR wave spectra data are firstly quality control filtered and spatio-temporal matched with buoy data. The comparisons are then performed in terms of 1D wave spectra, significant wave height (SWH) and mean wave period (MWP) in different spatio-temporal offsets respectively. SWH comparison results show the evident dependence of SWH biases on wind speed and the ASAR SWH saturation effect. The ASAR wave spectra tend to underestimate SWH at high wind speeds and overestimate SWH at low wind speeds. MWP comparison results show that MWP has a systematic bias and therefore it should be bias-modified before used. The comparisons of 1D wave spectra show that both wave spectra agree better at low frequencies than at high frequencies, which indicates the ASAR data cannot resolve the high frequency waves.
关键词	Advanced Synthetic Aperture Radar (Asar) Wave Spectrum Moored Buoy Integrated Wave Parameter
学科领域	Marine & Freshwater Biology ; Oceanography
DOI	10.1007/s00343-011-9926-8
URL	查看原文
收录类别	SCI
语种	英语
WOS记录号	WOS:000286203200002
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/11565
专题	海洋环流与波动重点实验室
作者单位	1.State Ocean Adm, Inst Oceanog 1, Qingdao 266061, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 3.Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China 4.State Ocean Adm, Key Lab Marine Sci & Numer Modeling MASNUM, Qingdao 266061, Peoples R China
第一作者单位	中国科学院海洋研究所
推荐引用方式 GB/T 7714	Ren Qifeng,Zhang Jie,Meng Junmin,et al. Comparison and analysis of Envisat ASAR ocean wave spectra with buoy data in the northern Pacific Ocean[J]. CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2011,29(1):10-17.
APA	Ren Qifeng,Zhang Jie,Meng Junmin,&Song Pingjian.(2011).Comparison and analysis of Envisat ASAR ocean wave spectra with buoy data in the northern Pacific Ocean.CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,29(1),10-17.
MLA	Ren Qifeng,et al."Comparison and analysis of Envisat ASAR ocean wave spectra with buoy data in the northern Pacific Ocean".CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY 29.1(2011):10-17.

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