Returns a data frame listing every index that climatekit can compute,
along with its category, unit, and a short description.
Examples
ck_available()
#> index category unit
#> 1 frost_days temperature days
#> 2 ice_days temperature days
#> 3 summer_days temperature days
#> 4 tropical_nights temperature days
#> 5 growing_season temperature days
#> 6 txx temperature °C
#> 7 tnx temperature °C
#> 8 txn temperature °C
#> 9 tnn temperature °C
#> 10 tx10p temperature %
#> 11 tn10p temperature %
#> 12 tx90p temperature %
#> 13 tn90p temperature %
#> 14 heating_degree_days temperature degree-days
#> 15 cooling_degree_days temperature degree-days
#> 16 growing_degree_days temperature degree-days
#> 17 diurnal_range temperature °C
#> 18 warm_spell temperature days
#> 19 wsdi temperature days
#> 20 csdi temperature days
#> 21 dry_days precipitation days
#> 22 wet_days precipitation days
#> 23 total_precip precipitation mm
#> 24 heavy_precip precipitation days
#> 25 very_heavy_precip precipitation days
#> 26 max_1day_precip precipitation mm
#> 27 max_5day_precip precipitation mm
#> 28 precip_intensity precipitation mm/day
#> 29 r95p precipitation mm
#> 30 r99p precipitation mm
#> 31 spi drought dimensionless
#> 32 spei drought dimensionless
#> 33 pet drought mm
#> 34 huglin agroclimatic degree-days
#> 35 winkler agroclimatic degree-days
#> 36 branas agroclimatic mm·°C
#> 37 first_frost agroclimatic day of year
#> 38 last_frost agroclimatic day of year
#> 39 wind_chill comfort °C
#> 40 heat_index comfort °C
#> 41 humidex comfort unitless
#> 42 fire_danger comfort unitless
#> description
#> 1 Count of days where Tmin < 0°C
#> 2 Count of days where Tmax < 0°C
#> 3 Count of days where Tmax > 25°C
#> 4 Count of days where Tmin > 20°C
#> 5 Growing season length (ETCCDI: 6-day spells of Tmean > 5°C)
#> 6 Annual or monthly maximum of daily Tmax (ETCCDI TXx)
#> 7 Annual or monthly maximum of daily Tmin (ETCCDI TNx, warmest night)
#> 8 Annual or monthly minimum of daily Tmax (ETCCDI TXn, coldest day)
#> 9 Annual or monthly minimum of daily Tmin (ETCCDI TNn, coldest night)
#> 10 Percentage of cool days (ETCCDI TX10p, Tmax below calendar-day 10th percentile)
#> 11 Percentage of cool nights (ETCCDI TN10p, Tmin below calendar-day 10th percentile)
#> 12 Percentage of warm days (ETCCDI TX90p, Tmax above calendar-day 90th percentile)
#> 13 Percentage of warm nights (ETCCDI TN90p, Tmin above calendar-day 90th percentile)
#> 14 Sum of (base - Tavg) for days below base temperature
#> 15 Sum of (Tavg - base) for days above base temperature
#> 16 Sum of (Tavg - base) for days above base temperature
#> 17 Mean daily temperature range (Tmax - Tmin)
#> 18 Warm spell days (simplified, see ck_wsdi for ETCCDI WSDI)
#> 19 Warm spell duration index (ETCCDI WSDI, 1961-1990 calendar-day Tmax 90p base)
#> 20 Cold spell duration index (ETCCDI CSDI, 1961-1990 calendar-day Tmin 10p base)
#> 21 Maximum consecutive dry days (precip < threshold)
#> 22 Maximum consecutive wet days (precip >= threshold)
#> 23 Total precipitation by period
#> 24 Count of days with precipitation >= threshold
#> 25 Count of days with precipitation >= threshold
#> 26 Maximum 1-day precipitation
#> 27 Maximum 5-day precipitation total
#> 28 Mean precipitation on wet days (SDII)
#> 29 Annual total precipitation on days above 95th percentile of 1961-1990 wet-day baseline (ETCCDI R95p)
#> 30 Annual total precipitation on days above 99th percentile of 1961-1990 wet-day baseline (ETCCDI R99p)
#> 31 Standardized Precipitation Index
#> 32 Standardized Precipitation-Evapotranspiration Index
#> 33 Potential evapotranspiration (Hargreaves method)
#> 34 Huglin heliothermal index for viticulture
#> 35 Winkler index (growing degree days for wine regions)
#> 36 Branas hydrothermal index
#> 37 Date of first autumn frost (Tmin < 0°C)
#> 38 Date of last spring frost (Tmin < 0°C)
#> 39 Wind chill temperature
#> 40 Heat index (apparent temperature)
#> 41 Canadian humidex
#> 42 Simplified fire danger proxy (not FWI)