Drought refers to a shortage of precipitation or a circumstance when the water can’t meet the requirements. Due to their high frequencies, long duration, wide range of impacts, and a large number of accompanying disasters, droughts have become the reason for great economic losses to the national economies, especially to agricultural production in many countries. In the world, the economic losses caused by natural disasters have reached an average of $250–300 billion (China News Service, 2015) per year. In the recent years, the number of people affected by drought is 50.5 million per year, much higher than the average of 35.4 million in the past 10 years.
The thematic knowledge service of the spatio-temporal distribution of arable land drought in the Belt and Road has been released. Considering the urgent demand for drought disasters over long periods of time in the Belt and Road region, this knowledge service shows the monthly spatio-temporal distribution of the drought from 1998 to 2015 with the Precipitation Abnormity Percent-age drought model. MapServer is used to release Web Map Service (WMS) referring the international specifications and standards. The combination of data and MapBox tiles is used by LeafletJS to generate the GIS map view. When the app page is opened, the GIS map could be visualized as the map service.
Selecting GIS data operation in the sidebar navigation, you can see the corresponding options (year and month) and click the drop-down arrow to display the year and month lists, including the years from 2001 to 2013, and the months from January to December. Documents and information are classified by label control. Additional links for related pages are listed in the app page for user to get more readings.
The information is provided by the DRR Knowledge Service System of IKCEST.