Climatology of precipitation and clouds over NW_ATLANTIC_2
NW ATLANTIC 2


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 2194392 snapshots of precipitation features with size > 80 km^2 have been collected over NW_ATLANTIC_2 , where 17280 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 2194392 248 870 3.9 1.2 0.07
    DJF 489196 263 841 3.2 0.7 0.03
    MAM 389060 304 1083 3.7 0.9 0.12
    JJA 646736 212 766 4.5 1.6 0.11
    SON 669400 241 870 3.9 1.3 0.04

  • Extreme rainy events
  • In all 2194392 precipitation features, top 1% ( volumetric rain > 10359 mm/hr*km^2) rainy features contribute 69 % of total rainfall. Top 100 rainiest events observed by TRMM during 1998-2013 over NW_ATLANTIC_2 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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