摘要
This is a most interesting and useful book for readers of this Journal,as it is very relevant to the Digital Earth topic of monitoring changes at global,regional and local levels.The book has eight chapters,which describe and discuss the occurrence of global drought events,their characteristics,causes and impacts,going from the Holocene(the last 12,000 years),through the twentieth century to the present day.It also gives expected trends to the end of the twenty-first century.The chapters describe the physical processes of drought development and the science behind drought reconstruction,observation and modelling.The book also places drought into the broader issue of Global Change.
