pyclimdex

Implementation of Climdex indices in Python/xarray/dask

Usage

Install from pypi:

pip install pyclimdex

or from GitHub:

pip install git+https://github.com/bgroenks96/pyclimdex.git

Import either temperature or precipitation indices

import climdex.precipitation as pdex

Initialize indices and compute them on your xarray DataArray or Dataset

   indices = pdex.indices(time_dim='time')
   # compute total monthly precipitation;
   # your data should be daily or sub-daily time scale
   ptot = indices.prcptot(data, period='1M')

That's it! You can find more info on the Climdex indices here.

pyclimdex currently supports the following indices for temperature and precipitation respectively:

Temperature

Annual frost days
Annual tropical nights
Annual icing days
Annual summer days
Monthly max daily max temp (TXx)
Monthly min daily max temp (TXn)
Monthly max daily min temp (TNx)
Monthly min daily min temp (TNx)
Daily temperature range (DTR)

Precipitation

Monthly 1-day precip (Rx1day)
Monthly 5-day precip (Rx5day)
Annual 10mm precip days
Annual 20mm precip days
Annual n mm precip days
Total precipitation (variable time period)
Simple intensity index (SDII)
Consecutive dry days (CDD)
Consecutive wet days (CWD)

Indices which rely on historical data are not currently supported. Contributions are welcome!