Spatial and temporal variability of the freezing level in Patagonia's atmosphere

Short Summary:

This repository houses the Python preprocessing scripts utilized in generating the metadata for García-Lee et al., (2024) dataset. With these files and scripts, you gain access to the algorithm and examples for generating gridded products in netCDF format, specifically featuring the 0°C isotherm field.

Dependencies:

numpy (tested with 1.24.4 in py3)

pandas (tested with 2.0.3 in py3)

netCDF4 (tested with 1.6.0 in py3)

re (tested with 2.2.1 in py3)

glob

OS: Tested in Windows.

Technical Info:

File

Type

Description

1_H0_Detect.py

Python script

0°C Isotherm Detection Algorithm.

2_H0_Daily_Mean.py

Python script

Calculation of Daily Mean.

ISO0_1959_2021_GRID.rar

netCDF

0°C Isotherm Data at 6-Hour Intervals (1959-2021) in meters above sea level (m a.s.l.).

ERA5_PATAGONIA_6H_T_GPH_1959.rar

netCDF

Raw ERA5 data example for 1959: Temperature (°K) and Geopotential (m**2 s**-2).

Extra:

The file 'Observations and Charts.pdf' shows averages, standard deviations, bias, and trends of the 0°C isotherm for Puerto Montt, Río Gallegos, Comodoro Rivadavia, and Punta Arenas. These values were estimated using both observations and reanalysis ERA5 data.

Reference:

García-Lee, N., Bravo, C., Gónzalez-Reyes, Á., and Mardones, P.: Spatial and temporal variability of the freezing level in Patagonia's atmosphere, Weather Clim. Dynam., 5, 1137–1151, https://doi.org/10.5194/wcd-5-1137-2024, 2024.