Assessment of water clarity within Dokan lake using remote sensing techniques
Other Title(s)
تقييم نقاوة المياه في بحيرة دوكان باستخدام تقنيات التحسس النائي
Joint Authors
Abd Allah, Hasti Shwan
Ibrahim, Hikmat Mustafa
al-Khafaji, Mahmud Salih Mahdi
Source
Issue
Vol. 23, Issue 8 (31 Aug. 2017), pp.13-28, 16 p.
Publisher
University of Baghdad College of Engineering
Publication Date
2017-08-31
Country of Publication
Iraq
No. of Pages
16
Main Subjects
Earth Sciences, Water and Environment
History and Geography
Topics
Abstract EN
It is impractical to monitor lakes water quality by conventional field methods because of expense and time consuming.
Satellite image is more convenient to be used to collect the required data for monitoring and assessing lakes water quality.
This study aims to develop a water clarity estimation model based on remote sensing and GIS techniques to estimate and assess the water clarity within Dokan Lake in Kurdistan Region of Iraq.
Twenty points in the lake were selected and studied at autumn and spring seasons.
For assessing water clarity, the Secchi Disk Transparency (SDT) and the Trophic State Index (TSI) were used at these twenty stations in the lake.
Multiple linear regression is used to obtain mathematical models for estimating the water clarity depending on spectral reflectance of Landsat 8 OLI.
In this study, the new band (coastal blue) of Landsat 8 OLI has been undertaken in developing of the monitoring models.
Moreover, new Independent Component Analysis (ICA) and new 7 band ratios with 16 band combinations have been investigated.
The obtained highest determination coefficient values for SDT and TSI were 0.98 and 0.87 for autumn season and 0.95 and 0.97 for spring season respectively.
Generally, for spring season, the performance of all models is reduced due to seasonal change, variance of parameters and other factors.
The developed models were used to map the water clarity distribution within Dokan Lake.
The results of the developed SDT and TSI models showed that the correlation of all bands of Landsat 8 OLI is appropriate to monitor the water clarity.
These models can be effectively used to monitor the water clarity within the lake with conservation of time efforts and cost
American Psychological Association (APA)
Abd Allah, Hasti Shwan& al-Khafaji, Mahmud Salih Mahdi& Ibrahim, Hikmat Mustafa. 2017. Assessment of water clarity within Dokan lake using remote sensing techniques. Journal of Engineering،Vol. 23, no. 8, pp.13-28.
https://search.emarefa.net/detail/BIM-747204
Modern Language Association (MLA)
Abd Allah, Hasti Shwan…[et al.]. Assessment of water clarity within Dokan lake using remote sensing techniques. Journal of Engineering Vol. 23, no. 8 (Aug. 2017), pp.13-28.
https://search.emarefa.net/detail/BIM-747204
American Medical Association (AMA)
Abd Allah, Hasti Shwan& al-Khafaji, Mahmud Salih Mahdi& Ibrahim, Hikmat Mustafa. Assessment of water clarity within Dokan lake using remote sensing techniques. Journal of Engineering. 2017. Vol. 23, no. 8, pp.13-28.
https://search.emarefa.net/detail/BIM-747204
Data Type
Journal Articles
Language
English
Notes
Includes appendices : p. 23-28
Record ID
BIM-747204