Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1007/s00382-016-3385-z |
Temporal variability in wind-wave climate and its validation with ESSO-NIOT wave atlas for the head Bay of Bengal | |
Patra, Anindita; Bhaskaran, Prasad K. | |
2017-08-01 | |
发表期刊 | CLIMATE DYNAMICS
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ISSN | 0930-7575 |
EISSN | 1432-0894 |
出版年 | 2017 |
卷号 | 49期号:4 |
文章类型 | Article |
语种 | 英语 |
国家 | India |
英文摘要 | The head Bay region bordering the northern Bay of Bengal is a densely populated area with a complex geomorphologic setting, and highly vulnerable to extreme water levels along with other factors like sea level rise and impact of tropical cyclones. The influence of climate change on wind-wave regime from this region of Bay of Bengal is not known well and that requires special attention, and there is a need to perform its long-term assessment for societal benefits. This study provides a comprehensive analysis on the temporal variability in domain averaged wind speed, significant wave height (SWH) utilizing satellite altimeter data (1992-2012) and mean wave period using ECMWF reanalysis products ERA-Interim (1992-2012) and ERA-20C (1992-2010) over this region. The SWH derived from WAVEWATCH III (WW3) model along with the ERA-Interim reanalysis supplements the observed variability in satellite altimeter observations. Further, the study performs an extensive error estimation of SWH and mean wave period with ESSO-NIOT wave atlas that shows a high degree of under-estimation in the wave atlas mean wave period. Annual mean and wind speed maxima from altimeter show an increasing trend, and to a lesser extent in the SWH. Interestingly, the estimated trend is higher for maxima compared to the mean conditions. Analysis of decadal variability exhibits an increased frequency of higher waves in the present decade compared to the past. Linear trend analysis show significant upswing in spatially averaged ERA-20C mean wave period, whereas the noticed variations are marginal in the ERA-Interim data. A separate trend analysis for the wind-seas, swell wave heights and period from ERA-20C decipher the fact that distant swells governs the local wind-wave climatology over the head Bay region, and over time the swell activity have increased in this region. |
英文关键词 | Wind-wave climate Satellite altimeter WW3 ERA-Interim ERA-20C Wave atlas Wave rider buoy Bay of Bengal |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000407247200008 |
WOS关键词 | SATELLITE ALTIMETER ; ARABIAN SEA ; TRENDS ; OCEAN ; SPEED |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/36300 |
专题 | 气候变化 |
作者单位 | Indian Inst Technol Kharagpur, Dept Ocean Engn & Naval Architecture, Kharagpur 721302, W Bengal, India |
推荐引用方式 GB/T 7714 | Patra, Anindita,Bhaskaran, Prasad K.. Temporal variability in wind-wave climate and its validation with ESSO-NIOT wave atlas for the head Bay of Bengal[J]. CLIMATE DYNAMICS,2017,49(4). |
APA | Patra, Anindita,&Bhaskaran, Prasad K..(2017).Temporal variability in wind-wave climate and its validation with ESSO-NIOT wave atlas for the head Bay of Bengal.CLIMATE DYNAMICS,49(4). |
MLA | Patra, Anindita,et al."Temporal variability in wind-wave climate and its validation with ESSO-NIOT wave atlas for the head Bay of Bengal".CLIMATE DYNAMICS 49.4(2017). |
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