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Table 3 Indices and brief descriptions of lower troposphere in each sub-period

From: Meridional march of diurnal rainfall over Jakarta, Indonesia, observed with a C-band Doppler radar: an overview of the HARIMAU2010 campaign

Sub-periods Period-I (CENS active) Period-II (transition) Period-III (CENS inactive)
Date 16–25 January 26 January–04 February 05–14 February
CENS Index [avg] (ms−1) −3.42 −3.83 −2.25
CENS Index [min] (ms−1) −6.53 −4.80 −4.30
CT Index [avg] (deg.C) 27.07 27.14 27.54
CT Index [min] (deg.C) 26.78 26.93 27.35
Temperature Cooler Getting warmer Warmer
Zonal wind Strong westerly Westerly Easterly
Meridional wind Most northerly Southerly Little northerly
Remarks CENS reached its maximum in the beginning of the sub-period with the lowest CT, cool atmosphere, and strong westerly wind in the lower troposphere followed by an intermittent break. CENS started to retreat accompanied by both warmer CT and atmospheric temperature in the lower troposphere with decreasing easterly wind. CENS mostly retreated with the warmest CT and atmospheric temperature in the lower troposphere followed by easterly wind.
  1. Italicized letter in the CENS Index [min] shows above the criteria of “CENS” by Hattori et al. (2011). See text in detail