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read_d2_slovenian_automation_files.R
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read_d2_slovenian_automation_files <-
function(dataDirectory, dataFile) {
# This function read the data of Slovenian stations with three pairs of thermometers and
# automatic probes in the same Stevenson screen.
# These pairs can be used to study the influence of automation without change of the screen.
# And one pair that also has a relocation.
#
# Written by Victor Venema
# First version 31 August 2014
# Settings
settings = read_software_settings()
baseDirData = paste(settings$baseDir, "data", dataDirectory, "level1", sep=.Platform$file.sep)
manualDataDirFileName = paste(baseDirData, "manual-measurements.txt", sep=.Platform$file.sep)
automaticDataDirFileName = vector(mode="character", length=4)
automaticDataDirFileName[1] = paste(baseDirData, "iButton-measurements_ID38.txt", sep=.Platform$file.sep)
automaticDataDirFileName[2] = paste(baseDirData, "iButton-measurements_ID76.txt", sep=.Platform$file.sep)
automaticDataDirFileName[3] = paste(baseDirData, "iButton-measurements_ID301.txt", sep=.Platform$file.sep)
automaticDataDirFileName[4] = paste(baseDirData, "iButton-measurements_ID348.txt", sep=.Platform$file.sep)
# Read manual measurements, all statons are all in one file
# For pressure, T, Tmin, Tmax and RR the missing data indicator is -999
# For the other variables it is -9 (or 9) and we have to send this later
# File has 41 columns
# The manual data has 5 station IDs, the manual station 348 was relocated are given a new number 786
# In the automatic measurements stayed. Thus this pair represents both a change of sensor and location.
# As 348 has only 1 month of data and is thus not used, manual station 786 thus corresponds to
# automatic station 348.
# 38 Planina pod Golico
# 76 Vojsko
# 301 Slovenske Konjice
# 348 Jeruzalem; this station only contains one month of manual data this part is not used further
# 786 Ivanjkovci
manualMeasurements = read.csv(manualDataDirFileName, header=TRUE, sep = "\t", skip=94, na.strings="-999")
# Set the missing data values marked with a -9 (or 9) to missing
# ice-status 9, # RH -9, # wind-dir -9, # wind-speed -9, # ground-state -9, # visibility -9, # sun-duration -9,# CC -9, # RR-type -9, # total-snow, new-snow -9,
# manualMeasurements$ice.status7 [manualMeasurements$ice.status7 ==9] = NA
# manualMeasurements$ice.status14[manualMeasurements$ice.status14==9] = NA
# manualMeasurements$ice.status21[manualMeasurements$ice.status21==9] = NA
manualMeasurements$ice.status7 = NULL # Complicated non-standard variable, not used
manualMeasurements$ice.status14 = NULL
manualMeasurements$ice.status21 = NULL
manualMeasurements$RH7 [manualMeasurements$RH7 ==-9] = NA
manualMeasurements$RH14[manualMeasurements$RH14==-9] = NA
manualMeasurements$RH21[manualMeasurements$RH21==-9] = NA
manualMeasurements$wind.dir7 [manualMeasurements$wind.dir7 ==-9] = NA
manualMeasurements$wind.dir14[manualMeasurements$wind.dir14==-9] = NA
manualMeasurements$wind.dir21[manualMeasurements$wind.dir21==-9] = NA
manualMeasurements$wind.speed7 [manualMeasurements$wind.speed7 <=-9] = NA
manualMeasurements$wind.speed14[manualMeasurements$wind.speed14<=-9] = NA
manualMeasurements$wind.speed21[manualMeasurements$wind.speed21<=-9] = NA
manualMeasurements$ground.state7 = NULL # Complicated non-standard variable, not used
manualMeasurements$ground.state14 = NULL
manualMeasurements$ground.state21 = NULL
# manualMeasurements$ground.state7 [manualMeasurements$ground.state7 ==-9] = NA
# manualMeasurements$ground.state14[manualMeasurements$ground.state14==-9] = NA
# manualMeasurements$ground.state21[manualMeasurements$ground.state21==-9] = NA
manualMeasurements$visibility7 = NULL # a code found in metadata
manualMeasurements$visibility14 = NULL
manualMeasurements$visibility21 = NULL
manualMeasurements$pressure7 = NULL # station air pressure in 0,1 mm Hg, 1 bar = 750.06 mmHg, 1 mbar = 0.75006 mmHg
manualMeasurements$pressure14 = NULL
manualMeasurements$pressure21 = NULL
manualMeasurements$sun.duration = NULL # in 0.1h
manualMeasurements$CC7 [manualMeasurements$CC7 ==-9] = NA
manualMeasurements$CC14[manualMeasurements$CC14==-9] = NA
manualMeasurements$CC21[manualMeasurements$CC21==-9] = NA
manualMeasurements$total.snow[manualMeasurements$total.snow ==-9] = NA # snow depth in cm
manualMeasurements$new.snow [manualMeasurements$new.snow ==-9] = NA # snow depth in cm
# manualMeasurements$RR_type[manualMeasurements$RR_type ==-9] = NA
manualMeasurements$RR_type = NULL # Complicated non-standard variable, not used
## Convert data to standard units
# -1 for RR and snow (fall) means no precipitation (completely dry day), whereas a zero may also mean too little precip to observe.
# As this -1 may lead to mistakes in the analysis it is set to zero.
manualMeasurements$RR [manualMeasurements$RR ==-1] = 0
manualMeasurements$new.snow [manualMeasurements$new.snow ==-1] = 0
manualMeasurements$total.snow[manualMeasurements$total.snow ==-1] = 0
manualMeasurements$RR = manualMeasurements$RR / 10 # RR reported in 0.1 mm
manualMeasurements$T7 = manualMeasurements$T7 / 10 # All temps reported in 0.1 °C
manualMeasurements$T14 = manualMeasurements$T14 / 10
manualMeasurements$T21 = manualMeasurements$T21 / 10
manualMeasurements$Tmax = manualMeasurements$Tmax / 10
manualMeasurements$Tmin = manualMeasurements$Tmin / 10
manualMeasurements$Twet7 = manualMeasurements$Twet7 / 10
manualMeasurements$Twet14 = manualMeasurements$Twet14 / 10
manualMeasurements$Twet21 = manualMeasurements$Twet21 / 10
manualMeasurements$CC7 = manualMeasurements$CC7 * 10 # Convert from 1/10 to percent
manualMeasurements$CC14 = manualMeasurements$CC14 * 10
manualMeasurements$CC21 = manualMeasurements$CC21 * 10
manualMeasurements$total.snow = manualMeasurements$total.snow * 10 # converted to snow depth in mm
manualMeasurements$new.snow = manualMeasurements$new.snow * 10
manualMeasurements$wind.speed7 = manualMeasurements$wind.speed7 / 10 # convert wind speed from 0,1 m/s (usually calculated from Beaufort-scale estimation)
manualMeasurements$wind.speed14 = manualMeasurements$wind.speed14 / 10 # to meter per second
manualMeasurements$wind.speed21 = manualMeasurements$wind.speed21 / 10
# Convert wind-direction categories to degrees (calms with no wind direction are set to -1)
manualMeasurements$wind.dir7 = convert_winddir(manualMeasurements$wind.dir7) # see function below
manualMeasurements$wind.dir14 = convert_winddir(manualMeasurements$wind.dir14)
manualMeasurements$wind.dir21 = convert_winddir(manualMeasurements$wind.dir21)
# Split the data into the four stations
ID = c(38, 76, 301, 786)
manual=vector("list", 4)
for(i in 1:4) {
manual[[i]]$year = manualMeasurements$year [manualMeasurements$station.ID == ID[i]]
manual[[i]]$month = manualMeasurements$month[manualMeasurements$station.ID == ID[i]]
manual[[i]]$day = manualMeasurements$day [manualMeasurements$station.ID == ID[i]]
manual[[i]]$CC7 = manualMeasurements$CC7 [manualMeasurements$station.ID == ID[i]]
manual[[i]]$CC14 = manualMeasurements$CC14 [manualMeasurements$station.ID == ID[i]]
manual[[i]]$CC21 = manualMeasurements$CC21 [manualMeasurements$station.ID == ID[i]]
manual[[i]]$ground.state7 = manualMeasurements$ground.state7 [manualMeasurements$station.ID == ID[i]]
manual[[i]]$ground.state14 = manualMeasurements$ground.state14[manualMeasurements$station.ID == ID[i]]
manual[[i]]$ground.state21 = manualMeasurements$ground.state21[manualMeasurements$station.ID == ID[i]]
manual[[i]]$ice.status7 = manualMeasurements$ice.status7 [manualMeasurements$station.ID == ID[i]]
manual[[i]]$ice.status14 = manualMeasurements$ice.status14 [manualMeasurements$station.ID == ID[i]]
manual[[i]]$ice.status21 = manualMeasurements$ice.status21 [manualMeasurements$station.ID == ID[i]]
manual[[i]]$pressure7 = manualMeasurements$pressure7 [manualMeasurements$station.ID == ID[i]]
manual[[i]]$pressure14 = manualMeasurements$pressure14 [manualMeasurements$station.ID == ID[i]]
manual[[i]]$pressure21 = manualMeasurements$pressure21 [manualMeasurements$station.ID == ID[i]]
manual[[i]]$RH7 = manualMeasurements$RH7 [manualMeasurements$station.ID == ID[i]]
manual[[i]]$RH14 = manualMeasurements$RH14 [manualMeasurements$station.ID == ID[i]]
manual[[i]]$RH21 = manualMeasurements$RH21 [manualMeasurements$station.ID == ID[i]]
manual[[i]]$RR = manualMeasurements$RR [manualMeasurements$station.ID == ID[i]]
manual[[i]]$RR_type = manualMeasurements$RR_type [manualMeasurements$station.ID == ID[i]]
manual[[i]]$station.ID = manualMeasurements$station.ID [manualMeasurements$station.ID == ID[i]]
manual[[i]]$T7 = manualMeasurements$T7 [manualMeasurements$station.ID == ID[i]]
manual[[i]]$T14 = manualMeasurements$T14 [manualMeasurements$station.ID == ID[i]]
manual[[i]]$T21 = manualMeasurements$T21 [manualMeasurements$station.ID == ID[i]]
manual[[i]]$Tmax = manualMeasurements$Tmax [manualMeasurements$station.ID == ID[i]]
manual[[i]]$Tmin = manualMeasurements$Tmin [manualMeasurements$station.ID == ID[i]]
manual[[i]]$new.snow = manualMeasurements$new.snow [manualMeasurements$station.ID == ID[i]]
manual[[i]]$total.snow = manualMeasurements$total.snow [manualMeasurements$station.ID == ID[i]]
manual[[i]]$Twet7 = manualMeasurements$Twet7 [manualMeasurements$station.ID == ID[i]]
manual[[i]]$Twet14 = manualMeasurements$Twet14 [manualMeasurements$station.ID == ID[i]]
manual[[i]]$Twet21 = manualMeasurements$Twet21 [manualMeasurements$station.ID == ID[i]]
manual[[i]]$wind.dir7 = manualMeasurements$wind.dir7 [manualMeasurements$station.ID == ID[i]]
manual[[i]]$wind.dir14 = manualMeasurements$wind.dir14 [manualMeasurements$station.ID == ID[i]]
manual[[i]]$wind.dir21 = manualMeasurements$wind.dir21 [manualMeasurements$station.ID == ID[i]]
manual[[i]]$wind.speed7 = manualMeasurements$wind.speed7 [manualMeasurements$station.ID == ID[i]]
manual[[i]]$wind.speed14 = manualMeasurements$wind.speed14 [manualMeasurements$station.ID == ID[i]]
manual[[i]]$wind.speed21 = manualMeasurements$wind.speed21 [manualMeasurements$station.ID == ID[i]]
}
# TODO
# - DONE, Convert wind direction to degree
# - DONE, Convert cloud cover to a standard (fraction, percent?)
# - DONE, Plausibility check of the variables with -999 as missing value
# Read automatic measurements, one station per file
# Missing values are simply missing in these files
# R cannot handle the header line somehow, thus also skipped
# All automatic data files have a different length
auto=vector("list", 4)
for( i in 1:4 ) {
automaticMeasurements = read.csv(automaticDataDirFileName[i], header=FALSE, sep = "\t", skip=13)
dateStat =as.numeric(unlist(strsplit(as.character(automaticMeasurements[,1]), "[.]")))
dim(dateStat) =c(3,length(dateStat )/3) # reshape vector to matrix. date[,1] is first date, date[1,] the days of the month
auto[[i]]$year = dateStat[3,]
auto[[i]]$month = dateStat[2,]
auto[[i]]$day = dateStat[1,]
rm(dateStat)
timeStat =as.numeric(unlist(strsplit(as.character(automaticMeasurements [,2]), "[:]")))
dim(timeStat) =c(2,length(timeStat )/2) # reshape vector to matrix. time[,1] is first time, time[1,] the hour of the reading
auto[[i]]$hour = timeStat[1,]
auto[[i]]$minutes = timeStat[2,]
rm(timeStat)
auto[[i]]$temp = as.numeric(automaticMeasurements[,3])
}
list(manual, auto)
}
convert_winddir = function(winddir) {
# 0 calm NaN (no NA, which means missing)
# 2 NNE
# 4 NE
# 6 ENE
# 8 E 90
# 10 ESE
# 12 SE
# 14 SSE
# 16 S 180
# 18 SSW
# 20 SW
# 22 WSW
# 24 W 270
# 26 WNW
# 28 NW
# 30 NNW
# 32 N 360
winddir = 180 * winddir / 16
winddir[winddir==0] = -1
winddir
}