Probabilistic NDVI Forecasting from Sparse Satellite Time Series and Weather Covariates

• URL: http://arxiv.org/abs/2602.17683v1
• Date: Wed, 04 Feb 2026 17:48:52 GMT
• Title: Probabilistic NDVI Forecasting from Sparse Satellite Time Series and Weather Covariates
• Authors: Irene Iele, Giulia Romoli, Daniele Molino, Elena Mulero Ayllón, Filippo Ruffini, Paolo Soda, Matteo Tortora,
• Abstract summary: Accurate short-term forecasting of vegetation dynamics is a key enabler for data-driven decision support in precision agriculture.<n>NDVI forecasting from satellite observations remains challenging due to sparse and irregular sampling caused by cloud coverage.<n>We propose a probabilistic forecasting framework specifically designed for field-level NDVI prediction under clear-sky acquisition constraints.
• Score: 1.1503354666872168
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Accurate short-term forecasting of vegetation dynamics is a key enabler for data-driven decision support in precision agriculture. Normalized Difference Vegetation Index (NDVI) forecasting from satellite observations, however, remains challenging due to sparse and irregular sampling caused by cloud coverage, as well as the heterogeneous climatic conditions under which crops evolve. In this work, we propose a probabilistic forecasting framework specifically designed for field-level NDVI prediction under clear-sky acquisition constraints. The method leverages a transformer-based architecture that explicitly separates the modeling of historical vegetation dynamics from future exogenous information, integrating historical NDVI observations with both historical and future meteorological covariates. To address irregular revisit patterns and horizon-dependent uncertainty, we introduce a temporal-distance weighted quantile loss that aligns the training objective with the effective forecasting horizon. In addition, we incorporate cumulative and extreme-weather feature engineering to better capture delayed meteorological effects relevant to vegetation response. Extensive experiments on European satellite data demonstrate that the proposed approach consistently outperforms a diverse set of statistical, deep learning, and recent time series baselines across both point-wise and probabilistic evaluation metrics. Ablation studies further highlight the central role of target history, while showing that meteorological covariates provide complementary gains when jointly exploited. The code is available at https://github.com/arco-group/ndvi-forecasting.

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