IRAP Newsletter February 2017

  • A clustering of daily Outgoing Longwave Radiation, a proxy for convection, helped identifying three recurrent weather types related to rainfall-producing convective anomalies propagating northwestwards across the Caribbean basin from May to November. These can be traced to the southward incursion of baroclinic waves from the 
midlatitudes, and anticyclonic wave breaking, while higher frequencies of occurrence during MJO phases 1 and 2 suggest a connection with easterly waves emanating from African 
Relationships with hurricanes that created major damages (Opal in 1995, Ivan in 2004, Dennis and Wilma in 2005, Ike in 2008) and archived historical floods illustrate potentials for regional flood risk management. More details on the weather typing analysis can be found in the following publication: Vigaud, N., and A. W. Robertson (2017) Convection regimes and tropical-midlatitude interactions over the Intra-American Seas from May to November, Int. Jour. Climatol., DOI:10.1002/joc.5051
India – Bihar
  • Andy R. and Nachiketa A., visited India for the Integrated Research Applications Program-JEEVIKA project, a joint collaboration with the University of Arizona, February 4-16. They met with scientists from the Indian Institute of Tropical Meteorology in Pune and the Director General of Indian Meteorological Department in Delhi regarding future opportunities to share data and install the IRI data library. 
  • While in India, Andy R. and Nachiketa A. also met higher-level officers from the Bihar Rural Livelihood Promotion Society (BRLPS), Government of Bihar and visited several villages to interact with farmers regarding the use of climate information in their farming practices.

India – Other

  • Dr Sahai’s group at International Institute of Technology Madras (IITM) in India has indicated an interest in collaborating on heat wave research. Hannah N. is looking into a possible proposal submission for phase 2 of the Indian Monsoon Mission, which will focus on climate applications. 


  • Hannah N. is working on a validation of sub-seasonal forecasts for heat waves in Bangladesh in collaboration with Adrian Tompkins at International Center for Theoretical Physics (ICTP) in Italy.

  • Diana L. attended the first authors meeting for the IPCC Special Report on the world at 1.5C in Brazil. The group will be working over the next year to assess the pathways to keeping warming below 1.5C, the impacts of a 1.5C warming compared to 2C and above, and the implications of response options that could limit warming to 1.5C and adapt to it.