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• Actual soil characteristics can vary widely within a grid box.  Users and forecasters should take into account the peculiarities of a location when interpreting model output.
• The assigned average soil type for a grid box is not necessarily representative of an individual location.
• Runoff can be up to 30% of rainfall in complex orography or mountainous regions.
• Recycling of moisture by evaporation from surface often has an impact on maintaining cyclones over the dessert.
• Availability of water in the soil for plant uptake allows plant roots to better extract water, especially in relatively dry conditions.  Evapotranspiration can affect the surface specific humidity.
• Impacts of errors associated with soil moisture. 

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