Composite water anomaly index map for Southeast Asia (April-September2015).

Composite water anomaly index map for Southeast Asia (April-September2015).

Although monthly deficits are forecast to become less intense after May 2015, the impacts of recent severe to exceptional deficits in Southeast Asia are forecast to continue through Sept 2015. The map depicts deficits for April-Sep 2015, compared to historic norms for the region.  The most intense deficits are forecast for eastern and southern Thailand and western Cambodia.

This blog post presents results from our April “WSIM Global Water Monitor and Forecast” report. This report is based on observed temperature and precipitation through March 2015 and an ensemble of 28 temperature and precipitation forecasts issued by NOAA's CFSv2 the last week of March 2015.

Comment

Many analyses reported in ISciences-authored blog posts are based on data generated by the ISciences Water Security Indicator Model (WSIM). Other sources, if used, are referenced in footnotes accompanying individual posts. WSIM is a validated capability that produces monthly reports on current and forecast global freshwater surpluses and deficits with lead times of 1-9 months at 0.5°x0.5° resolution. This capability has been in continuous operation since April 2011 and has proven to provide reliable forecasts of emerging water security concerns in that time-frame. WSIM has the ability to assess the impacts of water anomalies on people, agriculture, and electricity generation. Detailed data, customized visualizations, and reports are available for purchase.

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