A Study on Spectral Reflectance with Surface Water Quality and Chlorophyll-A Concentrations in Muthupet Lagoon of Thiruvarur District, Tamilnadu
Thiruneelakandan1, B. Jeyavel Raja Kumar2, T. Dushiyanthan3, C. Suresh4, R. Karthikeyan K5, Davidraju D6
1Thiruneelakandan, Department of Earth Sciences, Annamalai University, Annamalai Nagar (Tamil Nadu), India.
2B.Jeyavel Raja Kumar, Department of Civil Engineering, Annamalai University, Annamalai Nagar (Tamil Nadu), India.
3T.Dushiyanthan, Department of Civil Engineering, Annamalai University, Annamalai Nagar (Tamil Nadu), India.
4C.Suresh, Department of Civil Engineering, Annamalai University, Annamalai Nagar (Tamil Nadu), India.
5R.Karthikeyan K, Department of Civil Engineering, Annamalai University, Annamalai Nagar (Tamil Nadu), India.
6Davidraju D, Government Engineering College, Tirunelveli (Tamil Nadu), India.
Manuscript received on 13 February 2014 | Revised Manuscript received on 20 February 2014 | Manuscript Published on 28 February 2014 | PP: 8-11 | Volume-3 Issue-9, February 2014 | Retrieval Number: H1445013814/14©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: In this paper, processing techniques for field measurements of spectral reflectance on chlorophyll-a in part of Muthupet lagoon, Thiruvarur district, Tamilnadu. This study focused upon improving the accuracy of chlorophyll quantification by applying wavelet analysis to reflectance spectra. Spectral reflectance measurement was carried out 5 different locations using ASD Field spectrometer in month of July 2011. The reflectance factor was computed and analyzed in RS3 software package the compared spectral curve shows peaks between 400 to 850 nm in most of the measuring locations. The chlorophyll-a content in spectral investigated locations 0.046, 2.258, 2.181, 3.569, 2.378 g/l. Our results show that spectral signatures for chlorophyll-a observed in the lagoon and the field had similar characteristics with high reflectance in visible region of the spectrum from 500 to 650 nm, but low in the NIR region from 750 to 850 nm.
Keywords: Chlorophyll-a, Reflectance, Spectral Signature.
Scope of the Article: Water Supply and Drainage