Indian summer monsoon rainfall variability during 2014 and 2015 and associated Indo-Pacific upper ocean temperature patterns
The factors responsible for the deficit ISM rainfall in 2014 and 2015 are examined. It is found that remote forcing in summer 2015 due to El Niño is mostly responsible for the deficit monsoon rainfall. The assimilation of only Argo temperature and salinity profiles using IITM-GODAS could capture all observed surface and subsurface temperature variations from early spring to summer during 2014 and 2015 over this region. This study highlights the necessity of maintaining observing systems such as Argo for accurate monsoon forecast.