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.

本数据集涵盖澳大利亚广大沿海区域内高度10米处的海面风速与风向数据，空间分辨率为1千米，数据源自哨兵一号A、B星（Sentinel-1 A/B）成像合成孔径雷达（Synthetic Aperture Radar, SAR）平台于2017至2021年共4年的观测结果。该海面风场数据采用统一的SAR风场反演算法生成，对该区域内全部哨兵一号存档数据进行了处理。本数据集已通过与Metop-A/B星散射计的浮标校准风场测量数据比对完成定标，并针对数据采集周期内定标参数可能出现的变化进行了检验。定标后的数据还通过与独立高度计（Altimeter）观测的风速数据（包括Cryosat-2、Jason-2、Jason-3及SARAL）比对完成了进一步验证。当前正在维护的IMOS（集成海洋观测系统, Integrated Marine Observing System）海面波子设施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核心存储库。本元数据记录所代表的数据为该数据库在2022年11月发布时的快照，已分配数字对象标识符（DOI），并将由AODN永久维护。