Spatiotemporal patterns of synchronous heavy rainfall events in East Asia during the Baiu season

Wolf, Frederik; Ozturk, Ugur; Cheung, Kevin; Donner, Reik V.

doi:https://doi.org/10.5194/esd-12-295-2021

Articles | Volume 12, issue 1

https://doi.org/10.5194/esd-12-295-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/esd-12-295-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 12, issue 1

Research article

|

03 Mar 2021

Research article |

| 03 Mar 2021

Spatiotemporal patterns of synchronous heavy rainfall events in East Asia during the Baiu season

Frederik Wolf, Ugur Ozturk, Kevin Cheung, and Reik V. Donner

Data sets

Global Precipitation measurement NASA https://pmm.nasa.gov/data-access/downloads/trmm

NCEP/NCAR Reanalysis 1 US National Center for Environmental Prediction https://psl.noaa.gov/data/gridded/data.ncep.reanalysis.html

NCEP-DOE Reanalysis 2 US National Center for Environmental Prediction and Depart- ment of Energy https://psl.noaa.gov/data/gridded/data.ncep.reanalysis2.html

NOAA In- terpolated Outgoing Longwave Radiation (OLR) US National Oceanic and Atmospheric Administration https://psl.noaa.gov/data/gridded/data.interp_OLR.html

Short summary

Motivated by a lacking onset prediction scheme, we examine the temporal evolution of synchronous heavy rainfall associated with the East Asian Monsoon System employing a network approach. We find, that the evolution of the Baiu front is associated with the formation of a spatially separated double band of synchronous rainfall. Furthermore, we identify the South Asian Anticyclone and the North Pacific Subtropical High as the main drivers, which have been assumed to be independent previously.