【摘 要】
：
Sea surface wind (SSW) observations from a newly developed “Black Pearl” wave glider,the Chinese-French Oceanography Satellite (CFOSAT),the HY-2A microwave scatterometer,and a recently released high-resolution atmospheric reanalysis (ERA5) are evaluated w
【机 构】
：
Key Laboratory of Marine Hazards Forecasting,Ministry of Natural Resources,Hohai University,Nanjing
论文部分内容阅读
Sea surface wind (SSW) observations from a newly developed “Black Pearl” wave glider,the Chinese-French Oceanography Satellite (CFOSAT),the HY-2A microwave scatterometer,and a recently released high-resolution atmospheric reanalysis (ERA5) are evaluated with respect to in-situ buoy observations (115.46°E,19.85°N) from the South China Sea.Buoy observations from June to November 2019 are used to evaluate the wind estimates from the different platforms.The comparisons show that the HY-2A and CFOSAT scatterometer wind speeds have mean root mean square errors (RMSEs) of approximately 1.6 and 1.6 m/s,respectively,and the corresponding mean wind direction RMSEs are approximately 19°and 17°,which indicates that these satellite retrievals meet the requirements of design engineering missions.The wind speed and wind direction RMSEs of ERA5 are approximately 1.9 m/s and 33°,respectively.The correlation coefficients between the HY-2A,CFOSAT,and ERA5 wind speeds and the buoy observations are 0.86,0.85,and 0.84,respectively,and the corresponding coefficients of the wind direction are 0.98,0.98,and 0.93,respectively,at a 95％ confidence level.However,the wind sensor in the wave glider provides relatively poor-quality observations compared with the buoy measurements and has higher wind speed and wind direction RMSEs of 2.9 rn/s and 50.1°,respectively.Taylor diagrams are utilized to illustrate comprehensive wind comparisons between the multiplatform observations and buoy observations.The results help identify the basic biases in SSWs among different products and enhance confidence in the future use of SSW data for studies of upper ocean dynamics and climate analysis.Suggestions are also offered to help improve the design of next-generation wave gliders.
其他文献
The Kuroshio Extension (KE) is one of the most eddy-energetic regions in the global ocean.However,most mesoscale eddy studies in the region are focused on surface eddies and the structure and characteristics of three-dimensional (3-D) eddies require addit
Based on analysis of gene structure of mamXY operon in Magnetospirillum gryphiswaldense strain MSR-1,we constructed a mamZ deletion mutant strain (ΔmamZ) and four complemented strains with different mamZ fragment lengths.Various cell phenotypic and physio
Hydrozoans and anthozoans are an important component of a great variety of marine communities,particularly abundant and ubiquitous as part of the fouling assemblages around the globe.Several negative impacts have been associated to their occurrence on art
假单胞菌属在各种环境广泛分布且具有重要的生态应用价值,然而当前研究对其环境适应性遗传基础的解析尚不充分.选择33株有效发表且具有全基因组序列以及一株新分离的假单胞菌的全基因组进行泛基因组学分析.结果表明,选择的假单胞菌属菌株泛基因组含有173 271条蛋白序列,共有30 847个同源基因家族,包括1 505个核心基因,基因组呈开放型.通过分析不同基因组的基因组演化特征,发现通过基因水平转移获得的基因占整个基因组的比例为32％-48％,其平均基因岛数量为53个.发现假单胞菌属泛基因组的开发性与其频繁的基因水
Magnetotactic bacteria (MTB) intact cells have been applied in magnetic hyperthermia therapy of tumor,showing great efficiency in heating for tumor cell inhibition.However,the detailed magnetic hyperthermia properties and optimum heat production condition
Harmful algal bloom (HAB) is an ecological disaster to local mariculture.At present,its impact on macrophytes has not been well studied.In this study,we cultivated sexually propagated embryos of Sargassum fusiformis— an edible seaweed—in Prorocentrum dong
We present observations from deployments of turbulent microstructure instrument and CTD package in the northern South China Sea from April to May 2010.From them we determined the turbulent mixing (dissipation rate ε and diapycnal diffusivity κ),nutrients
231Pa and 230Th are two crucial isotopes in the ongoing GEOTRACES Project.However,the controversy on 231Pa/230Th proxy pertaining to archiving ocean circulation or recording paleoproductivity,is still unresolved,partly owing to the unclear understanding o
Traditionally,the estimated volume transport of the North Equatorial Current/Undercurrent(NEC/NEUC) is based on geostrophic equations and/or model results;however,direct observational evidence has not been acquired.We focused on one-year mooring observati
The Andaman Sea has been a classic study region for internal solitary waves (ISWs) for several decades,and extraordinarily large ISWs are characteristic of the Andaman Sea in the Indian Ocean.This paper presents results on the estimation of the propagatio