Climatology of precipitation and clouds over Guinea_Sierraleone_Liberia
Guinea Sierraleone Liberia


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

  • During 1998-2013, total 110323 snapshots of precipitation features with size > 80 km^2 have been collected over Guinea_Sierraleone_Liberia , where 4494 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 110323 365 1525 5.5 1.7 0.54
    DJF 7227 218 981 6.5 1.8 0.69
    MAM 18523 375 1721 7.0 2.0 1.22
    JJA 47614 376 1488 4.8 1.5 0.28
    SON 36959 374 1581 5.6 1.9 0.50

  • Extreme rainy events
  • In all 110323 precipitation features, top 1% ( volumetric rain > 29340 mm/hr*km^2) rainy features contribute 59 % of total rainfall. Top 100 rainiest events observed by TRMM during 1998-2013 over Guinea_Sierraleone_Liberia 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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