flash_austria {FlashAustria} | R Documentation |
Lightning discharges counted on 32 x 32 sq-km grid over Austria, Europe, for the years 2010–2018 and the month May–August, detected by the ground-based Austrian Lightning Detection and Information System (ALDIS). A selection of atmospheric parameters from the fifth ECMWF re-analysis (ERA5) interpolated nearest neighbour method to the grid of the counted lightning discharges. The temporal resolution of the data is hourly.
Three objects flash_austria_train
, flash_austria_eval
and
flash_austria_case
are added to the environment. flash_austria_train
and
flash_austria_eval
are data.frame
s. flash_austria_case
is a
sf
object—which contains a geometry column providing the 32 x 32 sq-km grid
as polygons.
ALDIS counts of cloud-to-ground lightning discharges
2m dewpoint temperature
first principal component of the vertical profile of specific humidity
fourth principal component of the vertical profile of specific snow water content
first principal component of the vertical profile of temperature
second principal component of the vertical profile of v component of wind
square root of convective available potential energy
square root of large scale precipitation
Only a random subset of the data given positive counts
is provided for training and evaluation:
flash_austria_train
and flash_austria_eval
contain 12000 and 6000
observations, respectively.
As prediction cases 2019-09-15 06 UTC, 2001-09-15 17 UTC, 2001-09-15 23 UTC and
2001-09-16 13 UTC are provided.
To cite the flash count data (observations), please use:
Schulz, W., Cummins, K., Diendorfer, G., and Dorninger, M. (2005). Cloud-to-Ground Lightning in Austria: A 10-Year Study Using Data from a Lightning Location System. J. Geophys. Res., 110, D09101. https://doi.org/10.1029/2004JD005332
Schulz, W. and Diendorfer, G. and Pedeboy, S. and Poelman, D. R. (2016). The European Lightning Location System EUCLID—Part 1: Performance Analysis and Validation. Nat. Hazards Earth Syst. Sci., 16, 595–605. https://doi.org/10.5194/nhess-16-595-2016
To cite the reanalyses data (covariates), please use:
Copernicus Climate Change Service (C3S) (2017). ERA5: Fifth Generation of ECMWF Atmospheric Reanalyses of the Global Climate. Copernicus Climate Change Service Climate Data Store (CDS), date of access: June 2019. https://cds.climate.copernicus.eu/cdsapp#!/home
data("flash_austria", package = "FlashAustria") head(flash_austria_train) nrow(flash_austria_train) hist(flash_austria_train$counts, breaks = c(seq(.5, 50.5), Inf), xlim = c(0, 50), col = "lightgray" ) plot(counts ~ log(sqrt_cape), flash_austria_train) nrow(flash_austria_eval) if (require(sf)) { class(flash_austria_case) head(flash_austria_case) plot(st_geometry(flash_austria_case)) }