Climatology of precipitation and clouds over W_PACIFIC_ITCZ
W PACIFIC ITCZ


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

  • During 1998-2011, total 1220642 snapshots of precipitation features with size > 80 km^2 have been collected over W_PACIFIC_ITCZ , where 4319 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 1220642 736 2621 5.1 2.5 0.01
    DJF 266999 701 2416 4.5 2.2 0.02
    MAM 252136 668 2415 4.9 2.5 0.02
    JJA 352551 776 2801 5.4 2.7 0.01
    SON 348956 772 2746 5.2 2.6 0.01

  • Extreme rainy events
  • In all 1220642 precipitation features, top 1% ( volumetric rain > 46810 mm/hr*km^2) rainy features contribute 52 % of total rainfall. Top 100 rainiest events observed by TRMM during 1998-2011 over W_PACIFIC_ITCZ 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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