⚡  Usage

Install

pip install catchment

Example

import catchment

path = f'{catchment._path}/example.csv'
Q, date = catchment.load_streamflow(path)
b, KGEs = catchment.delineation(Q, date, area=276)
print(f'Best Method: {b.dtype.names[KGEs.argmax()]}')

Project Structure

The directory structure of catchment looks like this:

├── methods                 <- implements for 12 catchment delineation methods
│
├── recession_analysis      <- tools for estimating recession coefficiency
│
├── param_estimate          <- backward and calibration approaches to estimate other parameters
│
├── comparison              <- an evaluation criterion to comparison different methods
│
├── requirements.txt        <- File for installing catchment dependencies
│
└── README.md

📌  Todo

Nolinear reservoir assumption

• Implement the nolinear reservoir assumption from the paper
• Employ a time-varing recession coefficiency for catchment delineation

Applicable to other time scales

1. The current version only applies to the daily scale
2. The package needs to be updated to support hourly catchment delineation

🚀  Publications

The following articles detail the 12 catchment delineation methods and their evaluation criterion.

• Xie, J., Liu, X., Wang, K., Yang, T., Liang, K., & Liu, C. (2020). Evaluation of typical methods for catchment delineation in the contiguous United States. Journal of Hydrology, 583, 124628. https://doi.org/10.1016/j.jhydrol.2020.124628