The synergistic impact of ENSO and IOD on Indian summer monsoon rainfall in observations and climate simulations – an information theory perspective

Pothapakula, Praveen Kumar; Primo, Cristina; Sørland, Silje; Ahrens, Bodo

doi:https://doi.org/10.5194/esd-11-903-2020

Articles | Volume 11, issue 4

https://doi.org/10.5194/esd-11-903-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/esd-11-903-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 11, issue 4

Research article

|

03 Nov 2020

Research article |

| 03 Nov 2020

The synergistic impact of ENSO and IOD on Indian summer monsoon rainfall in observations and climate simulations – an information theory perspective

Praveen Kumar Pothapakula, Cristina Primo, Silje Sørland, and Bodo Ahrens

Supplement

https://doi.org/10.5194/esd-11-903-2020-supplement

Model code and software

pothapakulapraveen/ESD: Codes P. K. Pothapakula https://doi.org/10.5281/zenodo.4192441

Download

Article (9947 KB)
Full-text XML

Short summary

Information exchange (IE) from the Indian Ocean Dipole (IOD) and El Niño–Southern Oscillation (ENSO) to Indian summer monsoon rainfall (ISMR) is investigated. Observational data show that IOD and ENSO synergistically exchange information on ISMR variability over central India. IE patterns observed in three global climate models (GCMs) differ from observations. Our study highlights new perspectives that IE metrics could bring to climate science.