BACKGROUND, AIM, AND SCOPE Fujian reservoirs in southeast China are important water resources for economic and social sustainable development, although few have been studied previously. In recent years, growing population and increasing demands for water shifted the focus of many reservoirs from flood control and irrigation water to drinking water. However, most of them showed a rapid increase ...

Variations in the physico-chemical characteristics of estuaries, such as surface water salinity and temperature, lead to establishment gradients that are closely related with distribution nutrients suspended sediment. This affects light penetration, which turn influences Chlorophyll-a (Chl-a) concentration primary productivity. We used MODIS imagery identify spatio-temporal patterns sea salinit...

To improve the accuracy of remotely sensed estimates trophic state index (TSI) inland urban water bodies, key environmental factors (water temperature and wind field) were considered during modelling process. Such can be easily measured display a strong correlation with TSI. Then, backpropagation neural network (BP-NN) was applied to develop TSI estimation model using remote sensing factors. Th...

The Bacanga River Estuary is socioeconomically important due to artisanal fishing and aquaculture. It blocked by a dam under human pressure along its drainage basin, intensifying the eutrophication process. This study reports on occurrence of phytoplankton blooms trophic state (TSI TRIX) at six sampling sites during annual cycle. estuary was divided into downstream upstream regions. Higher sali...

Both the conventional and the Carlson trophic state index (TSI) classification methods were employed to assess the eutrophication state of 26 lakes in the Norfolk Broads, UK. The parameters employed were: Secchi depth, chlorophyll a and total phosphorous which had been obtained previously by using Landsat TM imagery, ground reference data and empirical algorithms for the Norfolk Broads (Baban, ...

Abstract Phosphorus (P) is one of the key nutrient compounds for phytoplankton grow. In conducted work, eutrophication indexes were used assessment level water course (Służewiecki Stream) and waters nearby lakes (Bottom Berensewicz’s Pond, Wyścigi Wilanowskie Lake). Calculating based on most important indicators which crucial process: total phosphorus (TP), nitrogen (TN), chlorophyll a (Chl( ))...

Soil use and occupation alter the physicochemical biological processes of aquatic ecosystems. Urban streams are fundamental components macro-drainage system cities; however, with advance urbanization, most modified to point that they no longer recognized as but sewage receptors. Physical diagnosis monitoring water quality essential understand trophic state these ecosystems in relation environme...

Abstract Regular monitoring of inland water bodies is essential to identify the areas deteriorating quality and take measures curb impairment. The present study aims develop a semi-analytical model for estimating Trophic State Index (TSI) from Sentinel 2 (S2) imagery. A algorithm, QAA-v6, parameterized S2 data (referred as QAA-S2) based on correlation between retrieved inherent optical properti...

anzali wetland on the south west of caspian sea is a unique ecosystem was registered as ramsar site at 1975. anzali wetland was deteriorated due to numerous disorder and poor water quality. the riverin input were strongly affective in the process of eutrophication where the eastern and central region was more degraded. the first survey on the eutrophication process was conducted at 1969, since ...