Today's paper

Takahashi, H. G., and J. M. B. Dado, 2018: Relationship between sea surface temperature and rainfall in the Philippines during the Asian summer monsoon. J. Meteor. Soc. Japan, 96, 283-290.
https://doi.org/10.2151/jmsj.2018-031Graphical Abstract with highlights

Highlights:

  • We offer a new perspective on a relationship between sea surface temperature (SST) over the windward region of the Philippines and rainfall in the western Philippines during the Asian summer monsoon season, which has been known as the negative correlation.
  • A warmer local SST results in greater rainfall over the western Philippines under similar monsoon westerlies conditions, particularly during moderate and relatively stronger monsoon regimes (Fig. 1). This result is obtained after selecting only the moderate or relatively stronger monsoon days, because the positive effect of SST on rainfall is masked by the apparent negative correlation between SST and rainfall.
  • The warmer SSTs being associated with less rainfall correspond to weaker cooling by weaker monsoon westerlies and the cooler SSTs being associated with more rainfall correspond to stronger cooling by stronger monsoon westerlies. The cooler SSTs are the result of stronger monsoon cooling and are not the cause of the greater rainfall, which is the apparent statistical relationship.

New Releases and Graphical Abstracts

JMSJ, 2018, Vol. 96, No.5 (October)  EOR NEW

  • Chen, Y., J. Wang, Y. Gao, X. Chen, H. Wang, and X.-Y. Huang, 2018: Refinement of the use of inhomogeneous background error covariance estimated from historical forecast error samples and its impact on short-term regional numerical weather prediction. J. Meteor. Soc. Japan, 96, https://doi.org/10.2151/jmsj.2018-048.
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