气候变化领域集成服务门户(CCPortal): Ocean Swell Comparisons Between Sentinel-1 and WAVEWATCH III Around Australia

CCPortal

DOI	10.1029/2020JC016265
	Ocean Swell Comparisons Between Sentinel-1 and WAVEWATCH III Around Australia
	Khan S.S.; Echevarria E.R.; Hemer M.A.
发表日期	2021
ISSN	21699275
卷号	126 期号:2
英文摘要	An intercomparison between directional wave spectra derived from Sentinel-1 Synthetic Aperture Radar (SAR) satellites and a WAVEWATCH III model hindcast in the wider Australian region is presented. The coastal buoy network around Australia is considerably sparse, and only a handful of buoy measurements exist in deeper oceans. National and regional scale wave models require validation and verification through intercomparisons with available observations to be confidently adopted and improved. In the absence of dense in-situ measurements, satellite-derived surface wave data provide an invaluable and independent source of observations. Satellite altimeters provide well-calibrated significant wave height data, but do not resolve wave directions, and are also not the platform of choice for resolving wave periods. SAR satellites that routinely map ocean surface waves fill this gap as they are able to measure directional wind-wave spectra of long period waves. This constitutes an important satellite data stream for better understanding the propagation of swell waves across ocean basins, and for comparisons with national and down-scaled wave models. However, both SAR wave measurements as well as wave models do not represent the truth and need qualification before regarding them as reliable data sets. The aim of this article is to perform an intercomparison of a wave model hindcast with SAR-derived wave information in the wider Australian region. The comparisons are done in the context of mean wave climate and its seasonal variability, and demonstrate good agreement for wave heights and periods. Valuable insights into possible sources of disagreement are given. © 2020. American Geophysical Union. All Rights Reserved.
英文关键词	Australia; climate; SAR; seasonal variability; Southern Ocean; waves
语种	英语
来源期刊	Journal of Geophysical Research: Oceans
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/186448
作者单位	Oceans and Atmosphere, Commonwealth Scientific and Industrial Research Organisation, Aspendale, VIC, Australia; Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, TAS, Australia; Australian Research Council, Centre of Excellence for Climate Extremes, University of Tasmania, Hobart, TAS, Australia; Oceans and Atmosphere, Commonwealth Scientific and Industrial Research Organisation, Hobart, TAS, Australia
推荐引用方式 GB/T 7714	Khan S.S.,Echevarria E.R.,Hemer M.A.. Ocean Swell Comparisons Between Sentinel-1 and WAVEWATCH III Around Australia[J],2021,126(2).
APA	Khan S.S.,Echevarria E.R.,&Hemer M.A..(2021).Ocean Swell Comparisons Between Sentinel-1 and WAVEWATCH III Around Australia.Journal of Geophysical Research: Oceans,126(2).
MLA	Khan S.S.,et al."Ocean Swell Comparisons Between Sentinel-1 and WAVEWATCH III Around Australia".Journal of Geophysical Research: Oceans 126.2(2021).