We show an algorithm to construct a rain-gauge-based analysis of dailyprecipitation for the Middle East. One of the key points of our algorithm isto construct an accurate distribution of climatology. One possible advantageof this product is to validate high-resolution climate models and/or todiagnose the impact of climate changes on local hydrological resources. Manyusers are familiar with a monthly precipitation dataset (New et al., 1999)and a satellite-based daily precipitation dataset (Huffman et al., 2001),yet our data set, unlike theirs, clearly shows the effect of orography ondaily precipitation and other extreme events, especially over the FertileCrescent region. Currently the Middle-East precipitation analysis product isconsisting of a 25-year data set for 1979–2003 based on more than 1300stations.
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