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Simulating crop evapotranspiration uncertainty by perturbing weather inputs to the HRMET model in Jupyter Notebooks. Focuses on temperature and radiation errors impacting spatial ET estimates via Monte Carlo methods.

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Kwakuopokuware401/Estimating_Crop_Evapotranspiration_Uncertainty_with_HRMET

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Estimating_Crop_Evapotranspiration_Uncertainty_with_HRMET

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Author: Kwaku Opoku-Ware (kwakuopokuware401@gmail.com)

Description

This project implements the HRMET evapotranspiration model in Python and analyzes uncertainty in the model outputs.

Overview

  • Implements gridded HRMET model in Python based on original MATLAB code

  • Generates synthetic weather data as model inputs

  • Estimates uncertainty in inputs like temperature using statistical techniques

  • Propagates input uncertainty through the HRMET model to estimate output uncertainty

  • Analyzes and visualizes uncertainty maps

Uncertainty Analysis

-Input uncertainty is estimated using statistical techniques like moving window standard deviation.

-Uncertainty is propagated through the HRMET model using Monte Carlo simulation.

-Output uncertainty metrics are analyzed.

Requirements

The code requires the following Python packages:

-Python 3.6 or higher

-numpy

-matplotlib

-datetime

Applications

download_ET_map

Potential use cases for this modeling approach include:

-Spatial analysis of ET over agricultural fields

-ET forecasting for drought monitoring

-Hydrologic modeling of watersheds

-Quantifying uncertainty in hydrologic predictions

References

The HRMET model, written in Matlab code, was originally developed by Sam Zipper (samzipper@ku.edu). If you utilize or adapt the HRMET model in your work, please cite the following paper to credit the original model developers:

Zipper, S.C. & S.P. Loheide II (2014). Using evapotranspiration to
assess drought sensitivity on a subfield scale with HRMET, a high
resolution surface energy balance model. Agricultural & Forest
Meteorology 197: 91-102. DOI: 10.1016/j.agrformet.2014.06.009

Link: http://dx.doi.org/10.1016/j.agrformet.2014.06.009

I appreciate you acknowledging the research contributions that enabled the development of HRMET. Citing relevant papers helps advance scientific progress through the open dissemination of knowledge. Please let me know if you have any questions about appropriately citing this model.

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Simulating crop evapotranspiration uncertainty by perturbing weather inputs to the HRMET model in Jupyter Notebooks. Focuses on temperature and radiation errors impacting spatial ET estimates via Monte Carlo methods.

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