Study on Water Information Cloud of Nanjing Based on CloudStack

At present, cloud computing technology and its layout have been increasingly improved, but its application in water resources informatization is just the beginning. Therefore, it is necessary to study on the construction of water information cloud. Taking the present situation of Nanjing water resources as the background, this paper proposes a four-layer architecture of Nanjing water information cloud which includes physical layer, infrastructure layer, service layer and presentation layer. The cloud computing platform is built using CloudStack, and three kinds of related service clusters are advanced according to the requirements of Nanjing water conservancy. Finally, we analyze the application prospects and development orientation of water information clouds.