FlashAustria {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 FlashAustriaTrain
, FlashAustriaEval
and
FlashAustriaCase
are added to the environment. FlashAustriaTrain
and
FlashAustriaEval
are data.frame
s. FlashAustriaCase
is an
"sf"
object, containing 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:
FlashAustriaTrain
and FlashAustriaEval
contain 12000 and 6000
observations, respectively.
The following prediction cases are provided: 2019-09-15 06 UTC, 2001-09-15 17 UTC, 2001-09-15 23 UTC and
2001-09-16 13 UTC.
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("FlashAustria", package = "FlashAustria") head(FlashAustriaTrain) nrow(FlashAustriaTrain) hist(FlashAustriaTrain$counts, breaks = c(seq(.5, 50.5), Inf), xlim = c(0, 50), col = "lightgray" ) plot(counts ~ log(sqrt_cape), FlashAustriaTrain) nrow(FlashAustriaEval) if(require("sf")) { class(FlashAustriaCase) head(FlashAustriaCase) plot(st_geometry(FlashAustriaCase)) }