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Short-term rainfall forecasting, also known as precipitation nowcasting has become a potentially fundamental technology impacting significant real-world applications ranging from flight safety, rainstorm alerts to farm irrigation timings.…

Neural and Evolutionary Computing · Computer Science 2018-10-25 Maitreya Patel , Anery Patel , Dr. Ranendu Ghosh

Precipitation is a large-scale, spatio-temporally heterogeneous phenomenon, with frequent anomalies exhibiting unusually high or low values. We use Markov Random Fields (MRFs) to detect spatio-temporally coherent anomalies in gridded annual…

Applications · Statistics 2017-11-01 Adway Mitra , Ashwin K. Seshadri

Convection initiation (CI) nowcasting remains a challenging problem for both numerical weather prediction models and existing nowcasting algorithms. In this study, object-based probabilistic deep learning models are developed to predict CI…

Atmospheric and Oceanic Physics · Physics 2025-07-23 Da Fan , Steven J. Greybush , David John Gagne , Eugene E. Clothiaux

The hybrid model combines the physics-based primitive-equations model SPEEDY with a machine learning-based (ML-based) model component, while ERA5 reanalyses provide the presumed true states of the atmosphere. Six-hourly simulated noisy…

Chaotic Dynamics · Physics 2025-09-29 Dylan Elliott , Troy Arcomano , Istvan Szunyogh , Brian R. Hunt

Accurate and timely forecasting of heavy rainfall remains a critical challenge for modern society. Precipitation exhibits a highly imbalanced distribution: most observations record no or light rain, while heavy rainfall events are rare.…

Machine Learning · Computer Science 2025-10-01 Zenghui Huang , Ting Shu , Zhonglei Wang , Yang Lu , Yan Yan , Wei Zhong , Hanzi Wang

As global climate change intensifies, accurate weather forecasting is increasingly crucial for sectors such as agriculture, energy management, and environmental protection. Traditional methods, which rely on physical and statistical models,…

Machine Learning · Computer Science 2024-09-17 Bangyu Li , Yang Qian

The conditional generative adversarial rainfall model "cGAN" developed for the UK \cite{Harris22} was trained to post-process into an ensemble and downscale ERA5 rainfall to 1km resolution over three regions of the USA and the UK. Relative…

Atmospheric and Oceanic Physics · Physics 2023-09-28 Fenwick C. Cooper , Andrew T. T. McRae , Matthew Chantry , Bobby Antonio , Tim N. Palmer

Deep learning-based time series forecasting has dominated the short-term precipitation forecasting field with the help of its ability to estimate motion flow in high-resolution datasets. The growing interest in precipitation nowcasting…

Machine Learning · Computer Science 2024-06-17 Sojung An , Tae-Jin Oh , Eunha Sohn , Donghyun Kim

The operational flood forecasting system by Google was developed to provide accurate real-time flood warnings to agencies and the public, with a focus on riverine floods in large, gauged rivers. It became operational in 2018 and has since…

As climate change drives an increase in global extremes, it is critical for Bangladesh, a nation highly vulnerable to these impacts, to assess future risks for effective adaptation and mitigation planning. Downscaling coarse-resolution…

Atmospheric and Oceanic Physics · Physics 2024-12-24 Anamitra Saha , Sai Ravela

Vision-Language Models (VLMs) are trained on image-text pairs collected under canonical visual conditions and achieve strong performance on multimodal tasks. However, their robustness to real-world weather conditions, and the stability of…

Computer Vision and Pattern Recognition · Computer Science 2026-01-21 Chengyin Hu , Xiang Chen , Zhe Jia , Weiwen Shi , Fengyu Zhang , Jiujiang Guo , Yiwei Wei

Knowing the actual precipitation in space and time is critical in hydrological modelling applications, yet the spatial coverage with rain gauge stations is limited due to economic constraints. Gridded satellite precipitation datasets offer…

Signal Processing · Electrical Eng. & Systems 2023-08-04 Hristos Tyralis , Georgia Papacharalampous , Nikolaos Doulamis , Anastasios Doulamis

The Indian monsoon, a multi-variable process causing heavy rains during June-September every year, is very heterogeneous in space and time. We study the relationship between rainfall and Outgoing Longwave Radiation (OLR, convective cloud…

Atmospheric and Oceanic Physics · Physics 2025-03-20 Arjun Sharma , Adway Mitra , Vishal Vasan , Rama Govindarajan

A region under rainfall is a contiguous spatial area receiving positive precipitation at a particular time. The probabilistic behavior of such a region is an issue of interest in meteorological studies. A region under rainfall can be viewed…

Applications · Statistics 2019-03-05 Kaushik Jana , Debasis Sengupta , Subrata Kundu , Arindam Chakraborty , Purnima Shaw

Flooding is a destructive and dangerous hazard and climate change appears to be increasing the frequency of catastrophic flooding events around the world. Physics-based flood models are costly to calibrate and are rarely generalizable…

Machine Learning · Computer Science 2019-10-16 Chelsea Sidrane , Dylan J Fitzpatrick , Andrew Annex , Diane O'Donoghue , Yarin Gal , Piotr Biliński

Weather forecasting remains a crucial yet challenging domain, where recently developed models based on deep learning (DL) have approached the performance of traditional numerical weather prediction (NWP) models. However, these DL models,…

Atmospheric and Oceanic Physics · Physics 2024-02-13 Zhanxiang Hua , Yutong He , Chengqian Ma , Alexandra Anderson-Frey

Climate change has caused disruption in certain weather patterns, leading to extreme weather events like flooding and drought in different parts of the world. In this paper, we propose machine learning methods for analyzing changes in water…

Signal Processing · Electrical Eng. & Systems 2023-01-19 Francesco Mauro , Benjamin Rich , Veronica Wairimu Muriga , Alessandro Sebastianelli , Silvia Liberata Ullo

Recent deep learning approaches for river discharge forecasting have improved the accuracy and efficiency in flood forecasting, enabling more reliable early warning systems for risk management. Nevertheless, existing deep learning…

Computer Vision and Pattern Recognition · Computer Science 2025-10-27 Mohamad Hakam Shams Eddin , Yikui Zhang , Stefan Kollet , Juergen Gall

Flooding remains a major global challenge, worsened by climate change and urbanization, demanding advanced solutions for effective disaster management. While traditional 2D flood mapping techniques provide limited insights, 3D flood…

Computer Vision and Pattern Recognition · Computer Science 2025-07-14 Wenfeng Jia , Bin Liang , Yuxi Liu , Muhammad Arif Khan , Lihong Zheng

Objectives: To develop a deep learning framework to evaluate if and how incorporating micro-level mobility features, alongside historical crime and sociodemographic data, enhances predictive performance in crime forecasting at fine-grained…

Machine Learning · Computer Science 2025-09-26 Ariadna Albors Zumel , Michele Tizzoni , Gian Maria Campedelli