Predicting crop yields with little ground truth: A simple statistical
model for in-season forecasting
- URL: http://arxiv.org/abs/2106.08720v2
- Date: Thu, 17 Jun 2021 16:49:44 GMT
- Title: Predicting crop yields with little ground truth: A simple statistical
model for in-season forecasting
- Authors: Nemo Semret
- Abstract summary: We present a fully automated model for in-season crop yield prediction.
Our approach relies primarily on satellite data and is characterized by careful feature engineering combined with a simple regression model.
Applying it to 10 different crop-country pairs, we achieve RMSEs of 5%-10% for predictions 9 months into the year, and 7%-14% for predictions 3 months into the year.
- Score: 0.0
- License: http://creativecommons.org/licenses/by-nc-nd/4.0/
- Abstract: We present a fully automated model for in-season crop yield prediction,
designed to work where there is a dearth of sub-national "ground truth"
information. Our approach relies primarily on satellite data and is
characterized by careful feature engineering combined with a simple regression
model. As such, it can work almost anywhere in the world. Applying it to 10
different crop-country pairs (5 cereals -- corn, wheat, sorghum, barley and
millet, in 2 countries -- Ethiopia and Kenya), we achieve RMSEs of 5\%-10\% for
predictions 9 months into the year, and 7\%-14\% for predictions 3 months into
the year. The model outputs daily forecasts for the final yield of the current
year. It is trained using approximately 4 million data points for each
crop-country pair. These consist of: historical country-level annual yields,
crop calendars, crop cover, NDVI, temperature, rainfall, and
evapotransporation.
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