We present a high-resolution historical analysis of the atmosphere over the North Atlantic for the period from January 1979 to December 2018. The dataset was obtained using the nonhydrostatic atmospheric model WRF-ARW version 3.8.1 and contains two experiments that differ in spatial resolution: 14 km (HiRes) and 77 km (LoRes). Except for the spatial resolution, the configuration remained identical in both experiments: 50 vertical sigma-levels (starting from ~12 m up to 50 hPa); ERA-Interim reanalysis was used as forcing and spectral nudging. The dataset for HiRes and LoRes experiments was named NAAD (North Atlantic Atmospheric Downscaling). Preliminary results of both HiRes and LoRes reveal good agreement with observations and the ERA-Interim, ERA5, and ASRv2 reanalyses. The NAAD dataset is available online at http://www.naad.ocean.ru and provides a variety of surface and upper-troposphere atmospheric variables with a time step of 3 h.

我们提供了1979年1月至2018年12月期间北大西洋大气的高分辨率历史分析。该数据集是使用非静压大气模型WRF-ARW版本3.8.1获得的，其中包含两个空间分辨率不同的实验：14公里（HiRes）和77公里（LoRes）。除空间分辨率外，两个实验的配置均相同：50个垂直sigma级别（从〜12 m开始到50 hPa）；ERA-临时重新分析被用作强迫和频谱微调。HiRes和LoRes实验的数据集被命名为NAAD（北大西洋大气降尺度）。HiRes和LoRes的初步结果均与观察结果和ERA-Interim，ERA5和ASRv2的重新分析具有良好的一致性。NAAD数据集可从http：//www.naad.ocean在线获得。