Radar measurements collected during the LAgrangian Submesoscale ExpeRiment (LASER) experiment aboard R/V Walton Smith cruise WS16015 in the Gulf of Mexico from 2016-01-20 to 2016-02-12

This dataset reports near-surface currents and sea surface roughness derived from X-band radar aboard R/V Walton Smith cruise WS16015 in the Gulf of Mexico from 2016-01-20 to 2016-02-12. This data was collected during the CARTHE II sponsored LAgrangian Submesoscale ExpeRiment (LASER) experiment in the northern Gulf of Mexico. It was obtained from a coherent-on-receive marine X-band (9.5 GHz) radar (Braun et al., 2008), developed at Helmholtz Zentrum Geesthacht (HZG), Germany. The data includes backscatter images collected every 2-min that can be used to identify surface features such as fronts. The data also includes current velocity maps obtained by processing series of these images using 3-D Fast Fourier Transforms (FFTs) and overlays of the current maps over averaged backscatter images. This dataset supports the publication: Lund, B., Haus, B.K., Horstmann, J., Graber, H.C., Carrasco, R., Laxague, N.J., Novelli, G., Guigand, C.M. and Özgökmen, T.M., 2018. Near-surface current mapping by shipboard marine X-band radar: A validation. Journal of Atmospheric and Oceanic Technology, 35(5), pp.1077-1090. doi:10.1175/jtech-d-17-0154.1本数据集报告了2016年1月20日至2016年2月12日期间，在墨西哥湾执行WS16015航次的R/V Walton Smith号科考船搭载的X波段雷达（X-band radar）反演得到的近表层海流与海面粗糙度数据。 该数据采集于由CARTHE II资助的拉格朗日次中尺度实验（LAgrangian Submesoscale ExpeRiment, LASER），实验区域位于墨西哥湾北部。 数据由德国亥姆霍兹基尔赫施塔特中心（Helmholtz Zentrum Geesthacht, HZG）研发的相干接收型海洋X波段（9.5 GHz）雷达获取（Braun等，2008）。 数据集包含每2分钟采集的后向散射图像，可用于识别海洋锋面等海面特征；同时包含通过对上述图像序列开展三维快速傅里叶变换（3-D Fast Fourier Transforms, FFTs）处理得到的海流速度场图，以及叠加海流场信息的平均后向散射图像。 本数据集支持以下已发表学术论文：Lund, B.、Haus, B.K.、Horstmann, J.、Graber, H.C.、Carrasco, R.、Laxague, N.J.、Novelli, G.、Guigand, C.M. 与Özgökmen, T.M.，2018年。《船载海洋X波段雷达近表层海流制图：一项验证研究》。刊载于《大气与海洋技术杂志》，第35卷第5期，页码1077-1090。DOI: 10.1175/jtech-d-17-0154.1