This book describes some key global water challenges, perspectives for remote sensing approaches, and their importance for water resources-related activities. It presents eight key types of water resources management variables, a list of sensors that can produce such information, and a description of existing data products with examples.

This report forms part of the GEF-funded project on “Groundwater Governance: A Global Framework for Country Action” under the International Waters focal area, and includes partners from the FAO, GEF-IW, IAH, UNESCO-IHP and the Bank.