High-resolution, calibrated and validated Synthetic Aperture Radar ocean surface wind data around Australia

The dataset consists of ocean surface wind speed and direction at 10m height and 1 km spatial resolution around the wider Australian coastal areas, spanning 4 years (2017 to 2021) of measurements from Sentinel-1 A and B imaging Synthetic Aperture Radar (SAR) platforms. The winds have been derived using a consistent SAR wind retrieval algorithm, processing the full Sentinel-1 archive in this region. The data have been calibrated against Metop-A/B Scatterometer buoy-calibrated, wind measurements and examined for potential changes in calibration over the duration of the data. The calibrated data are further validated by comparisons against independent Altimeter (Cryosat-2, Jason-2, Jason-3, and SARAL) wind speeds.

The ongoing IMOS (Integrated Marine Observing System) Surface Waves Sub-Facility SAR wind database (delayed mode data) is available through the Australian Ocean Data Network (AODN) Portal (https://portal.aodn.org.au/search?uuid=b02b929f-2caf-45d4-ac60-d4632b7ca0ca), the main repository for marine data in Australia. The data represented by this metadata record is a snapshot of the database at the time of this publication (November 2022), and has been assigned a DOI and will be maintained in perpetuity by the AODN.

本数据集包含澳大利亚近岸全域范围内、空间分辨率为1千米的10米高度海面风速与风向数据，其数据源自哨兵1号A（Sentinel-1 A）与哨兵1号B（Sentinel-1 B）合成孔径雷达（Synthetic Aperture Radar，SAR）成像平台2017至2021年共4年的观测数据。该数据集的海面风场采用统一的SAR风场反演算法生成，处理了该区域内全部的哨兵1号存档数据。本数据集已通过与Metop-A/B散射计浮标校准风场测量数据的比对完成定标，并针对数据周期内定标参数可能发生的变化进行了检验。定标后的数据还通过与独立高度计（Cryosat-2、Jason-2、Jason-3及SARAL）风速数据的比对完成了进一步验证。

正在持续更新的IMOS（集成海洋观测系统，Integrated Marine Observing System）海浪子设施SAR风场数据库（延迟模式数据）可通过澳大利亚海洋数据网络（Australian Ocean Data Network，AODN）门户（https://portal.aodn.org.au/search?uuid=b02b929f-2caf-45d4-ac60-d4632b7ca0ca）获取，该门户是澳大利亚海洋数据的主要存储库。本元数据记录所代表的数据为该数据库在本出版物发布时（2022年11月）的快照，已分配数字对象标识符（DOI），并将由AODN永久维护。