get_ghcn_daily returns a named list of length 2:
SpatialPointsDataFrame of the locations of GHCN weather stations
in the template, and
data.frames with the daily weather data for each station.
The name of each list item is the station ID.
get_ghcn_daily(template = NULL, label = NULL, elements = NULL, raw.dir = "./RAW/GHCN/", extraction.dir = "./EXTRACTIONS/GHCN/", standardize = F, force.redo = F)The other elements are: ACMC = Average cloudiness midnight to midnight from 30-second ceilometer data (percent) ACMH = Average cloudiness midnight to midnight from manual observations (percent) ACSC = Average cloudiness sunrise to sunset from 30-second ceilometer data (percent) ACSH = Average cloudiness sunrise to sunset from manual observations (percent) AWDR = Average daily wind direction (degrees) AWND = Average daily wind speed (tenths of meters per second) DAEV = Number of days included in the multiday evaporation total (MDEV) DAPR = Number of days included in the multiday precipiation total (MDPR) DASF = Number of days included in the multiday snowfall total (MDSF) DATN = Number of days included in the multiday minimum temperature (MDTN) DATX = Number of days included in the multiday maximum temperature (MDTX) DAWM = Number of days included in the multiday wind movement (MDWM) DWPR = Number of days with non-zero precipitation included in multiday precipitation total (MDPR) EVAP = Evaporation of water from evaporation pan (tenths of mm) FMTM = Time of fastest mile or fastest 1-minute wind (hours and minutes, i.e., HHMM) FRGB = Base of frozen ground layer (cm) FRGT = Top of frozen ground layer (cm) FRTH = Thickness of frozen ground layer (cm) GAHT = Difference between river and gauge height (cm) MDEV = Multiday evaporation total (tenths of mm; use with DAEV) MDPR = Multiday precipitation total (tenths of mm; use with DAPR and DWPR, if available) MDSF = Multiday snowfall total MDTN = Multiday minimum temperature (tenths of degrees C; use with DATN) MDTX = Multiday maximum temperature (tenths of degress C; use with DATX) MDWM = Multiday wind movement (km) MNPN = Daily minimum temperature of water in an evaporation pan (tenths of degrees C) MXPN = Daily maximum temperature of water in an evaporation pan (tenths of degrees C) PGTM = Peak gust time (hours and minutes, i.e., HHMM) PSUN = Daily percent of possible sunshine (percent) SN*# = Minimum soil temperature (tenths of degrees C) where * corresponds to a code for ground cover and # corresponds to a code for soil depth.
Ground cover codes include the following: 0 = unknown 1 = grass 2 = fallow 3 = bare ground 4 = brome grass 5 = sod 6 = straw multch 7 = grass muck 8 = bare muck
Depth codes include the following: 1 = 5 cm 2 = 10 cm 3 = 20 cm 4 = 50 cm 5 = 100 cm 6 = 150 cm 7 = 180 cm
SX*# = Maximum soil temperature (tenths of degrees C) where * corresponds to a code for ground cover and # corresponds to a code for soil depth. See SN*# for ground cover and depth codes. TAVG = Average temperature (tenths of degrees C) [Note that TAVG from source 'S' corresponds to an average for the period ending at 2400 UTC rather than local midnight] THIC = Thickness of ice on water (tenths of mm) TOBS = Temperature at the time of observation (tenths of degrees C) TSUN = Daily total sunshine (minutes) WDF1 = Direction of fastest 1-minute wind (degrees) WDF2 = Direction of fastest 2-minute wind (degrees) WDF5 = Direction of fastest 5-second wind (degrees) WDFG = Direction of peak wind gust (degrees) WDFI = Direction of highest instantaneous wind (degrees) WDFM = Fastest mile wind direction (degrees) WDMV = 24-hour wind movement (km) WESD = Water equivalent of snow on the ground (tenths of mm) WESF = Water equivalent of snowfall (tenths of mm) WSF1 = Fastest 1-minute wind speed (tenths of meters per second) WSF2 = Fastest 2-minute wind speed (tenths of meters per second) WSF5 = Fastest 5-second wind speed (tenths of meters per second) WSFG = Peak gust wind speed (tenths of meters per second) WSFI = Highest instantaneous wind speed (tenths of meters per second) WSFM = Fastest mile wind speed (tenths of meters per second) WT** = Weather Type where ** has one of the following values: 01 = Fog, ice fog, or freezing fog (may include heavy fog) 02 = Heavy fog or heaving freezing fog (not always distinquished from fog) 03 = Thunder 04 = Ice pellets, sleet, snow pellets, or small hail 05 = Hail (may include small hail) 06 = Glaze or rime 07 = Dust, volcanic ash, blowing dust, blowing sand, or blowing obstruction 08 = Smoke or haze 09 = Blowing or drifting snow 10 = Tornado, waterspout, or funnel cloud 11 = High or damaging winds 12 = Blowing spray 13 = Mist 14 = Drizzle 15 = Freezing drizzle 16 = Rain (may include freezing rain, drizzle, and freezing drizzle) 17 = Freezing rain 18 = Snow, snow pellets, snow grains, or ice crystals 19 = Unknown source of precipitation 21 = Ground fog 22 = Ice fog or freezing fog
WV** = Weather in the Vicinity where ** has one of the following values: 01 = Fog, ice fog, or freezing fog (may include heavy fog) 03 = Thunder 07 = Ash, dust, sand, or other blowing obstruction 18 = Snow or ice crystals 20 = Rain or snow shower