Inter-annual variations in wave spectral characteristics at a location off the central west coast of India
The inter-annual variations in wave spectrum are examined based on the wave data measured at 9 m water depth off the central west coast of India from 2009 to 2012 using a wave rider buoy. The temporal variation of the spectral energy density over a calendar year indicates similar variation in all...
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Copernicus Publications
2015-02-01
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Series: | Annales Geophysicae |
Online Access: | https://www.ann-geophys.net/33/159/2015/angeo-33-159-2015.pdf |
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doaj-1fff8991ef3a409f93509f96fa70a87a2020-11-25T00:11:58ZengCopernicus PublicationsAnnales Geophysicae0992-76891432-05762015-02-013315916710.5194/angeo-33-159-2015Inter-annual variations in wave spectral characteristics at a location off the central west coast of IndiaV. Sanil Kumar0M. Anjali Nair1Ocean Engineering, CSIR-National Institute of Oceanography (Council of Scientific & Industrial Research) Dona Paula, Goa 403 004, IndiaOcean Engineering, CSIR-National Institute of Oceanography (Council of Scientific & Industrial Research) Dona Paula, Goa 403 004, IndiaThe inter-annual variations in wave spectrum are examined based on the wave data measured at 9 m water depth off the central west coast of India from 2009 to 2012 using a wave rider buoy. The temporal variation of the spectral energy density over a calendar year indicates similar variation in all the four years studied. The inter-annual variations in wave spectrum are observed in all months with larger variations during January to February, May and October to November due to the changes in wind-sea. The seasonal average wave spectrum during the monsoon (June–September) is single-peaked and the swell component is high in 2011 compared to other years. The annual averaged wave spectrum had higher peak energy during 2011 due to the higher spectral energy present during the monsoon period. During the non-monsoon period, two peaks are predominantly observed in the wave spectra; with the average peak at 0.07 Hz corresponding to the swells from the Indian Ocean and another at 0.17 Hz due to the local wind field.https://www.ann-geophys.net/33/159/2015/angeo-33-159-2015.pdf |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
V. Sanil Kumar M. Anjali Nair |
spellingShingle |
V. Sanil Kumar M. Anjali Nair Inter-annual variations in wave spectral characteristics at a location off the central west coast of India Annales Geophysicae |
author_facet |
V. Sanil Kumar M. Anjali Nair |
author_sort |
V. Sanil Kumar |
title |
Inter-annual variations in wave spectral characteristics at a location off the central west coast of India |
title_short |
Inter-annual variations in wave spectral characteristics at a location off the central west coast of India |
title_full |
Inter-annual variations in wave spectral characteristics at a location off the central west coast of India |
title_fullStr |
Inter-annual variations in wave spectral characteristics at a location off the central west coast of India |
title_full_unstemmed |
Inter-annual variations in wave spectral characteristics at a location off the central west coast of India |
title_sort |
inter-annual variations in wave spectral characteristics at a location off the central west coast of india |
publisher |
Copernicus Publications |
series |
Annales Geophysicae |
issn |
0992-7689 1432-0576 |
publishDate |
2015-02-01 |
description |
The inter-annual variations in wave spectrum are examined based on the wave
data measured at 9 m water depth off the central west coast of India from
2009 to 2012 using a wave rider buoy. The temporal variation of the spectral
energy density over a calendar year indicates similar variation in all the
four years studied. The inter-annual variations in wave spectrum are observed
in all months with larger variations during January to February, May and
October to November due to the changes in wind-sea. The seasonal average wave
spectrum during the monsoon (June–September) is single-peaked and the swell
component is high in 2011 compared to other years. The annual averaged wave
spectrum had higher peak energy during 2011 due to the higher spectral energy
present during the monsoon period. During the non-monsoon period, two peaks
are predominantly observed in the wave spectra; with the average peak at
0.07 Hz corresponding to the swells from the Indian Ocean and another at
0.17 Hz due to the local wind field. |
url |
https://www.ann-geophys.net/33/159/2015/angeo-33-159-2015.pdf |
work_keys_str_mv |
AT vsanilkumar interannualvariationsinwavespectralcharacteristicsatalocationoffthecentralwestcoastofindia AT manjalinair interannualvariationsinwavespectralcharacteristicsatalocationoffthecentralwestcoastofindia |
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