GIS for Water Resources and Watershed Management

  

 GIS for Water Resources and Watershed Management



تحميل كتاب نظم المعلومات الجغرافية لإدارة موارد المياه GIS for Water Resources and Watershed Management، استكمالا لسلسلة تعلم نظم المعلومات الجغرافية Learn GIS نقدم لكم في هذه المقالة كتاب نظم المعلومات الجغرافية لإدارة موارد المياه GIS for Water Resources and Watershed Management، من تأليف John G. Lyon.

Introduction book GIS for Water Resources and Watershed Management

This e-book is an encyclopedia for GIS for Water Resources and Watershed Management, as it contains 15 main topics, these topics are divided into many sub-topics, all in 300 pages, and these some topics are covered in the book GIS for Water Resources and Watershed Management:- 

A number of GIS applications to water resources and watersheds have been completed over the years, and they nicely illustrate the potential of the technology. Many of these efforts have resulted from the need to address difficult-to-achieve project goals. GIS applications are applied due to the variability of the resources over time and space, and the number of variables that must be evaluated.


Geographic Information Systems are databases that usually have a spatial component to the storage and processing of the data. Hence, they have the potential to both store and create maplike products. They also offer the potential for performing multiple analyses or evaluations of scenarios such as model simulations.
Data are stored in multiple files. Each file contains data in a coordinate system that identifies a position for each data point or entry. Characteristics of the data point are stored as “attributes.” A database of individual files is developed and the combined files may contain characteristics or attributes such as stream locations, topography, water or soil chemical sampling, management practices, ownership, biota, point sources, and any other data that can be collected and have meaning for the analysis.

The GIS supplies value by virtue of the detail of the database, and how these data can be used to address the application of interest. Each variable or “layer” in the GIS supports the application with data on the characteristics of water resources or watersheds.

An important capability of GIS is the simulation of physical, chemical, and biological processes using models. GIS can potentially be used with deterministic or complex models based on algorithms simulating processes, or they can be applied with statistical models. The requirement is that the model to be applied has the capability to take spatial and/or multiple file or “layer” data as input to computations.

تعليقات
ليست هناك تعليقات
إرسال تعليق



    وضع القراءة :
    حجم الخط
    +
    16
    -
    تباعد السطور
    +
    2
    -