Скачать или смотреть How to calculate PET, SPI, SPEI and Palmer drought indices in Python? | Jalal | Research Society

In this tutorial, we'll demonstrate how to calculate various drought indices—PET, SPI, SPEI, and the Palmer Drought Severity Index—using Python. We'll walk through each index, showing how to gather and process the necessary data, implement the calculations, and interpret the results. Whether you're a climate scientist, researcher, or enthusiast, this guide will help you monitor and analyze drought conditions effectively using Python.

Data download link:
https://www.drought.gov/data-maps-too...

Alternative link: https://github.com/monocongo/climate_...

Documentation for indices calculation:
https://climate-indices.readthedocs.i...


Command line:
#PET monthly
process_climate_indices --index pet --periodicity monthly --netcdf_temp ./nclimgrid_lowres_tavg.nc --var_name_temp tavg --output_file_base ../results/nclimgrid_lowres --calibration_start_year 1951 --calibration_end_year 2010

#SPI daily
process_climate_indices --index spi --periodicity daily --netcdf_precip ./cmorph_lowres_daily_conus_prcp.nc --var_name_precip prcp --output_file_base ../results/cmorph_lowres_daily_conus --scales 30 90 --calibration_start_year 1998 --calibration_end_year 2016

#SPI monthly
process_climate_indices --index spi --periodicity monthly --netcdf_precip ./nclimgrid_lowres_prcp.nc --var_name_precip prcp --output_file_base ../results/nclimgrid_lowres --scales 6 12 --calibration_start_year 1951 --calibration_end_year 2010

#SPEI monthly
process_climate_indices --index spei --periodicity monthly --netcdf_precip ./nclimgrid_lowres_prcp.nc --var_name_precip prcp --netcdf_pet ./nclimgrid_lowres_pet.nc --var_name_pet pet --output_file_base ../results/nclimgrid_lowres --scales 9 18 --calibration_start_year 1951 --calibration_end_year 2010

#Palmers monthly
process_climate_indices --index palmers --periodicity monthly --netcdf_precip ./nclimgrid_lowres_prcp.nc --var_name_precip prcp --netcdf_pet ./nclimgrid_lowres_pet.nc --var_name_pet pet --netcdf_awc ./nclimgrid_lowres_soil.nc --var_name_awc awc --output_file_base ../results/nclimgrid_lowres --calibration_start_year 1951 --calibration_end_year 2010


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PET Calculation
SPI Calculation
SPEI Calculation
Palmer Drought Index
Python Drought Analysis
Climate Data Analysis
Environmental Monitoring
Drought Assessment
Climate Science Python
Meteorology Python Tutorial

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