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arXiv 2608.09957physics.ao-ph

Borey:用于巴伦支海和喀拉海的高分辨率区域大气-海洋-海冰-海浪后报数据集(2019-2023)

Borey: A High-Resolution Regional Atmosphere-Ocean-Sea Ice-Wave Forecasting System and Hindcast Dataset for the Barents and Kara Seas

Vasily Ivanov, Polina Verezemskaya, Alexander Gavrikov, Vitaliy Sharmar, Mikhail Krinitskiy, Timofey Grigoryev, Vladimir Vanovskiy, Evgeny Burnaev

AI总结:

针对巴伦支海和喀拉海的高分辨率海洋信息需求,本文提出基于WRF-NEMO-SI3-WW3模型链的Borey后报数据集,提供2019-2023年多要素场,经初步验证具备合理精度,后续将重新计算验证统计量。

AI中文摘要:

巴伦支海和喀拉海需要空间分辨率比全球产品通常解析尺度更精细的区域海洋信息。本文介绍Borey,这是一个采用WRF-NEMO-SI3-WW3模型链生成的区域大气-海洋-海冰-海浪后报数据集。WRF场以约6km的间距在210×280网格上每小时存档,时间范围为2019年2月至2023年8月。自主运行的NEMO-SI3核心覆盖2019年9月至2023年8月,采用BARKA12网格(名义分辨率为1/12°,约3-5km),包含40个垂直层,每小时输出表面数据,每日输出三维数据。WW3提供2019年9月至2023年12月的每小时海浪场。该存档包含原生区域网格上的大气强迫、海洋状态、海冰浓度、厚度和漂移以及海浪场。本文记录了模型配置、生产工作流程、数据集结构和各组件的验证情况。当前评估显示,相对于ERA5,2m气温的均方根误差(RMSE)为1.78℃;相对于ASCAT,海洋10m风速的RMSE为1.84m/s;相对于OSTIA,海表温度的RMSE为1.66℃;相对于AMSR2,海冰浓度的RMSE为0.43。相对于ESA气候变化倡议海状态版本4 Level-3高度计记录,有效波高的偏差为-0.54m,RMSE为0.97m,相关系数为0.61。这些验证统计数据为初步结果,将在期刊投稿前采用统一验证协议重新计算。

英文摘要:

Borey is a high-resolution regional modeling and operational forecasting system for the Barents and Kara Seas. It combines WRF for the atmosphere, NEMO-SI3 for the ocean and sea ice, and WW3 for waves on approximately 3--6\,km grids, and generates daily forecasts to 72 hours. We describe the model chain and production workflow and present an accompanying hourly hindcast of surface conditions from August 2015 to August 2023. The archive provides aligned atmosphere, ocean, sea ice, and wave fields for regional marine studies and a baseline for evaluating the operational system. Comparisons with observations and observation-based products show that Borey captures much of the variability in near-surface atmospheric conditions and ocean temperature. Skill in the evaluated WRF, NEMO, and SI3 forecasts changes only modestly across the three-day window. The main limitations are persistent rather than rapidly growing errors: sea surface temperature is generally too cold, sea ice concentration and occurrence are overestimated during seasonal retreat, and significant wave height is underestimated. Borey should therefore complement observation-constrained products. The planned public release will provide hourly surface fields, native grids, provenance information, and validation outputs for regional analysis, model development, and carefully evaluated data-driven forecasting and data-assimilation research.

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