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Correction of the Full-text : An Investigation into Sea Level Rise in Sri Lankan Waters with Satellite Altimetry published on 01st October 2021 in the same issue Vol.1(2) 2021

Original article

Authors:

M. D. E. K. Gunathilaka ,

Sabaragamuwa University of Sri Lanka, Belihuloya 70140, LK
About M. D. E. K.
Department of Surveying and Geodesy, Faculty of Geomatics
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W. S. Kannangara

Sabaragamuwa University of Sri Lanka, Belihuloya 70140, LK
About W. S.
Department of Surveying and Geodesy, Faculty of Geomatics
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Abstract

Most of the socio-economic activities of Sri Lanka are centred in the coastal regions,  which  can  be  described  according  to  its  unique  geographical  and geophysical  backgrounds.  It  is  estimated  that  Sri  Lanka  has  a  shore  line about  1,700  km  in  length.  Therefore,  better  knowledge  and  understanding of the characteristics of sea level is very essential. The sea level has traditionally  been  measured  mainly  at  tide  gauges  set  up  along  the  coast line. However, the number of tide gauge stations is few and sparse in most countries. But, with the advancements of satellite altimetry technology, it is now  accepted  as  an  alternative  technique  to  study  regional  and  global  sea level changes. The basic concept in altimetry is the range measurements to the water surface measured from the altimeter antenna. The surface of the sea,  or  sea  level,  is  continuously  changing  for  many  reasons.  Here,  some changes are fast whereas others occur gradually. Among them, some factors  are  natural causes,  while  others  occur  due  to  man-made  activities such as the greenhouse effect. These changes can be regional or extend at a global scale. The main aim of this research was to examine the trends in sea level  rise  around  the  Sri  Lankan  coastline  using  two  decades  of  satellite altimetry data  from  1993  to  2012.  The  computed  sea  level  rise  trends around  Sri  Lanka are around  2.5  to  3  mm  per  year,  with  a standard deviation  of  +/-  0.6  mm.  The  obtained  trend  of  sea  level  rise  from  the altimetry data was validated with tide gauge data in Colombo, and found to be  highly  correlated,  with  a  correlation  coefficient  (R2)  of  0.93  for  annual mean sea level. This study confirms that satellite altimetry can be successfully used to investigate the long term sea level trend studies, particularly in the absence of long term tide data.
How to Cite: Gunathilaka, M.D.E.K. and Kannangara, W.S., 2021. Correction of the Full-text : An Investigation into Sea Level Rise in Sri Lankan Waters with Satellite Altimetry published on 01st October 2021 in the same issue Vol.1(2) 2021

Original article

. Journal of Geospatial Surveying, 1(2), pp.14–22. DOI: http://doi.org/10.4038/jgs.v1i2.31
Published on 15 Oct 2021.
Peer Reviewed

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