Hannah Nissan

Associate Research Scientist

  • Email: ude.aibmuloc.irinull@hannah
  • Address:117 Monell Building
    61 Route 9W
    Palisades, NY 10964


Hannah studied physics at the University of Bristol in the UK and holds a Postgraduate Diploma in Economics from the University of Cambridge. She completed her PhD in Atmospheric Physics at Imperial College London. She has worked at the International Energy Agency of the OECD and at the Scottish Government. Hannah joined the IRI in 2015 as an Earth Institute Fellow and a Fulbright Scholar, working in partnership with the Red Cross Red Crescent Climate Centre.

Research Interests

Hannah works on evaluating the suitability of climate information for decision-making across a range of timescales, including sub-seasonal to seasonal forecasts as well as long-term climate projections. She has a particular interest in translating scientific evidence into guidance for policy and decision-makers, with a focus on the health and humanitarian sectors and, to this end, she also engages in capacity building within stakeholder communities. She has worked on heat early warning systems and adaptation plans, conducting research into heat wave predictability, working with national and regional climate service providers to develop practically-relevant forecasts and delivering training to meteorological and health practitioners on the development of heat early warning systems, particularly in South Asia and the Caribbean.