Climatology of precipitation and clouds over NW_ATLANTIC_2

General info
System properties
Seasonal variation
Diurnal variation
Vertical Structure
Extreme events
Time series
  • Precipitation diurnal variation

  • Many studies suggested that the diurnal variation of the precipitation is related to the life cycles of the precipitation systems, which is frequently driven by the surface sensible heating. Over NW_ATLANTIC_2, mean annual precipitation are estimated with 1190.0 (mm/year) from precipitation radar. Detailed diurnal variation of the precipitation at high resolution can be accessed here (NOTE: it may take long time to generate for a large area). The diurnal variation of precipitation from systems with different sizes and heights are shown below:

    In total, thunderstorms (systems with detected lightning flashes) contribute 36 %, MCSs (Mesoscale convective systems with raining area > 2000 km^2) contribute 72 % of all precipitation over NW_ATLANTIC_2. Diurnal variations of fraction of precipitation from thunderstorms and MCSs over NW_ATLANTIC_2 are shown below:

  • Cloud day vs. night differences

  • Certainly there is a strong diurnal variation of different types of clouds. Because CloudSat observes at 0130 and 1330 local time, here the daytime and night cloud fraction in different seasons are presented:

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