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arXiv 2203.13263cs.LGcs.AI
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基于深度神经网络的地震临近预报

Precipitaion Nowcasting using Deep Neural Network

Institut de Recherche Technologique Saint-Exupéry(圣埃克苏佩里技术研究院);Institut de Recherche en Informatique de Toulouse(图卢兹计算机科学研究院);Météo-France(法国气象局);Centre Européen de Recherche et de Formation Avancée en Calcul Scientifique(欧洲科学计算高级研究与培训中心);Climate, Environment, Coupling and Uncertainties(气候、环境、耦合与不确定性研究所)
Mohamed Chafik Bakkay, Mathieu Serrurier, Valentin Kivachuk Burda, Florian Dupuy, Naty Citlali Cabrera-Gutierrez, Michael Zamo, Maud-Alix Mader, Olivier Mestre,… 展开作者

Mohamed Chafik Bakkay, Mathieu Serrurier, Valentin Kivachuk Burda, Florian Dupuy, Naty Citlali Cabrera-Gutierrez, Michael Zamo, Maud-Alix Mader, Olivier Mestre, Guillaume Oller, Jean-Christophe Jouhaud, Laurent Terray

摘要:

降水临近预报对于天气预报用户,从户外活动和体育比赛到机场交通管理都非常重要。与传统上通过数值模式获得的长期降水预报相比,降水临近预报需要非常快。因此,由于时间限制,获得该数据更具挑战性。近年来,基于机器学习的方法层出不穷。我们建议使用三种流行的深度学习模型(U-net,ConvLSTM和SVG-LP)在二维降水图上训练降水临近预报。提出了一种用于获取高分辨率降水图的斑块提取算法。提出了一种损失函数来解决图像模糊的问题,并减少了零值像素在降水图中的影响。

英文摘要:

Precipitation nowcasting is of great importance for weather forecast users, for activities ranging from outdoor activities and sports competitions to airport traffic management. In contrast to long-term precipitation forecasts which are traditionally obtained from numerical models, precipitation nowcasting needs to be very fast. It is therefore more challenging to obtain because of this time constraint. Recently, many machine learning based methods had been proposed. We propose the use three popular deep learning models (U-net, ConvLSTM and SVG-LP) trained on two-dimensional precipitation maps for precipitation nowcasting. We proposed an algorithm for patch extraction to obtain high resolution precipitation maps. We proposed a loss function to solve the blurry image issue and to reduce the influence of zero value pixels in precipitation maps.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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