I am also involved in reviewing a number of international journals and conference papers. The followings are some of them:

Hydrological Sciences Journal

Journal of Hydroinformatics

Journal of Hydrology

Hydrology and Earth System Science (HESS)

Journal of Hydrologic Engineering

Environmental Modelling and Software

Journal of Flood Risk Management

IEEE Transactions on Automation Science and Engineering

International Journal of Environmental Studies

International Joint Conference on Neural Networks

and many more ....