{"product_id":"environmental-applications-of-geographical-information-systems-von-ahmed-el-kenawy","title":"Environmental Applications of Geographical Information Systems","description":"\u003cp\u003eThe objective of this study was to examine how  semi-variograms can be used to model the spatial  variability of water quality in Lake Manzala, Egypt.  The lake has potential economic value not only to the  local community but also to the national economy. The  lake wetland habitats are rich in wildlife species.  More recently, the lake has been subjected to abrupt  changes in its water quality giving the most alarming  example amongst the northern Egyptian lakes as a  result of economic development, urbanization and  population growth,urban agglomeration and land  reclamation schemes.   Spherical models were found to be a more successful  estimator of water quality condition and were of  support to traditional methods as an adequate tool to  provide valuable spatial and temporal detailed  information about water quality in the Lake. Ordinary  Kriging provided good estimations of water quality  parameters points in the lake where field sampling  was limited and which can be of importance in future  sampling schemes. The modeled distribution of water  quality was presented in the form of digital maps  based on both traditional sample data and variogram  models.\u003c\/p\u003e\u003cdiv class=\"aw-variant-hidden-subtitle-div\" id=\"aw-variant-subtitle-9783838338446\"\u003e\u003ch3\u003eModelling water quality\u003c\/h3\u003e\u003c\/div\u003e","brand":"Autorenwelt Shop","offers":[{"title":"Softcover - 9783838338446","offer_id":39485432037469,"sku":"9783838338446","price":49.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0622\/files\/1c138779-c772-4040-ade8-61486de86f0e.jpg?v=1769668060","url":"https:\/\/shop.autorenwelt.de\/products\/environmental-applications-of-geographical-information-systems-von-ahmed-el-kenawy","provider":"Autorenwelt Shop","version":"1.0","type":"link"}