This NetCDF file was created for the manuscript: Extreme Precipitation Return Levels for Multiple Durations on a Global Scale,
Gründemann et al., 2021.
This file contain modified MSWEP-V2.2 data (Beck et al., 2019).
The python package mevpy (https://github.com/EnricoZorzetto/mevpy) was used in order to estimate the parameters and extremes.
The file "GPEX_dataset.nc" contains global estimates of extreme precipitation using three extreme value methods (GEV, POT and MEV),
the observed extremes, and underlying parameters for 8 durations ranging between 3 hours and 10 days.
The spatial resolution is 0.1 arc degrees, and the provided coordinates are the middle of the grid-cells.
GPEX_dataset.nc has the following coordinates:
- lat latitude The latitude coordinate: 1480 values and ranges between 89.95 and -57.95 degrees north
- lon longitude The longitude coordinate: 3600 values ranges between -179.95 and 179.95 degrees east
- dur event duration The duration of the extreme precipitation event: 3, 6, 12, 24, 48, 72, 120 and 240 hours
- tr return period The return period of the extreme precipitation: 2, 5, 10, 20, 39, 50, 100, 200, 500, 1000 years
- year year 38 values (ranging between 0 and 37), equal to the number of years of the MSWEP dataset
GPEX.nc has the following variables:
- gev_estimate GEV estimate Extreme precipitation estimated using the Generalized Extreme Value (GEV) distribution
- pot_estimate POT estimate Extreme precipitation estimated using the Peak-Over-Threshold (POT) distribution with a threshold of on average 3 events per year
- mev_estimate MEV estimate Extreme precipitation estimated using the Metastatistical Extreme Value (MEV) distribution
- observed_estimate Observed estimate Observed extreme precipitation derived from the MSWEP dataset (maximum 39 years)
- gev_location GEV location parameter The location parameter of the GEV distribution estimated using the annual maxima of each hydrological year
- gev_scale GEV scale parameter The scale parameter of the GEV distribution estimated using the annual maxima of each hydrological year
- gev_shape GEV shape parameter The shape parameter of the GEV distribution estimated using the annual maxima of each hydrological year
- gev_heaviness GEV heaviness The heaviness amplification factor (h) of the GEV distribution for T10, T100 and T1000
- mev_scale MEV scale parameter The scale parameter of the MEV distribution estimated for each hydrological year
- mev_shape MEV shape parameter The shape parameter of the MEV distribution estimated for each hydrological year
- mev_no_events MEV number of events Number of events per hydrological year, N parameter of the MEV distribution
- mev_mean_scale MEV mean scale parameter The mean scale parameter of the MEV distribution estimated for each hydrological year
- mev_mean_shape MEV mean shape parameter The mean shape parameter of the MEV distribution estimated for each hydrological year
- mev_mean_no_events MEV mean number of events Mean number of events per hydrological year, N parameter of the MEV distribution
- mev_heaviness MEV heaviness The heaviness amplification factor (h) of the MEV distribution for T10, T100 and T1000
- pot_location POT location parameter The location parameter for a GEV distribution estimated by fitting the GP distribution to peak-over-threshold precipitation events of on average 3 events per year
- pot_scale POT scale parameter The scale parameter for a GEV distribution estimated by fitting the GP distribution to peak-over-threshold precipitation events of on average 3 events per year
- pot_shape POT shape parameter The shape parameter for a GEV distribution estimated by fitting the GP distribution to peak-over-threshold precipitation events of on average 3 events per year
- pot_heaviness POT heaviness The heaviness amplification factor (h) of the POT distribution for T10, T100 and T1000
- annual_maximum annual maximum precipitation The annual maximum precipitation for each hydrological year, ordered from highest to lowest
- hydroyear start of hydrological year Number indicating the month in which the hydrological year starts
- mask land mask Mask used for this study to indicate the land cells (1) and ocean cells (0)
- running_parameter running parameter The running parameter (hours) of the declustering method by Marra et al. (2018)