Climatology of precipitation and clouds over IRAQ
IRAQ


General info
Precipitation
System properties
Cloud
Seasonal variation
Diurnal variation
Vertical Structure
Extreme events
  • Mean properties of precipitation system

  • During 1998-2011, total 45221 snapshots of precipitation features with size > 80 km^2 have been collected over IRAQ , where 3572 of them have lightning flashes inside. Some mean properties of these features are listed below:
    samples (#) mean size (km^2) mean volumetric rain (mm/hr*km^2) mean echo top (km) mean 30 dBZ ehco top (km)mean flash count (#)
    All 45221 972 2383 6.2 2.4 0.68
    DJF 17551 1198 2786 5.4 1.7 0.32
    MAM 15826 924 2366 6.7 2.7 1.03
    JJA 3248 302 956 7.8 4.0 0.82
    SON 8596 852 2129 6.3 2.6 0.73

  • Extreme rainy events
  • In all 45221 precipitation features, top 1% ( volumetric rain > 47396 mm/hr*km^2) rainy features contribute 44 % of total rainfall. Top 100 rainiest events observed by TRMM during 1998-2011 over IRAQ are listed here . Following figure shows the location of the precipitation feautres categorized by the volumetric rainfall.


  • Extreme intense events
  • Some of the precipitation sytems are much intense with large hails and many lightning than others (see the lists of top lightning storms. Following figure shows the location of the precipitation feautres categorized by the lightning rate and 30 dBZ echo top.


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