| Abstract:
Synoptic analysis of spring falls in North West Iran through the mapping of climate and land surface reflectance of long-wavelength radiation Attempts to study climate maps at different levels of the atmosphere and Earth's surface and maps of the land reflecting the long wavelength radiation conditions for the formation of convective rainfall in the North West explain. Using data from synoptic stations recorded precipitation was the North West, 15 april 2016 days with heavy precipitation and determining been demystified in the preparation of research data from NCEP data networks horizontal resolution of 5 ° geographic length and width were used and Through the application Grads, daily maps of sea level and 500 hPa, humidity advection maps and volubility 700 hpa, map of convergence and divergence moisture flow, long-wavelength reflectance map of the Earth's surface, atmosphere and maps omega vertical advection map queries. Survey maps indicate that extreme precipitation North West of Iran on 15 april, 2016 with model combines local convection effect is caused by the intrusion of Western air.
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