Description
Summary:Maintenance and Update Frequency: notPlanned Statement: The data have also been quality flagged by tagging spectral inversions where one or more of the partitions suffer from 180 degrees of swell directional ambiguity. According to the NetCDF's authors understanding, the source data have been produced by evolving versions of SAR ocean swell spectra inversion algorithm. This is a trial dataset and its cal/val is an area of current active research. For full details of quality assurance and control procedures applied; data generation workflow; format and file naming conventions see the data paper. Credit Integrated Marine Observing System (IMOS). IMOS is a national collaborative research infrastructure, supported by Australian Government. Credit Copernicus Australasia regional data hub Sentinel-1 A and B satellites are part of Europe’s Copernicus Earth Observation program and carry identical C-band Synthetic Aperture Radar (SAR) instruments. Over open-ocean, they operate in wave mode and collect directional wave measurements globally. This dataset contains Sentinel-1 SAR directional ocean swell wave number spectra, spectral partitions and partition bulks in the Australasian region including the Pacific islands (note - this dataset also contains many along-track observations outside this region, and are included due to overlap with the region of interest), this mission has flown since 2014, with data delivered from July 2015. The data includes both delayed-mode and Near Real Time (NRT) data streams. Systematic surface wave acquisitions from Sentinel-1 began in July, 2015 with only Sentinel-1 A in orbit, and were increased with the addition of Sentinel-1 B, which started regular wave measurements from Oct, 2016. The delayed-mode data processed and delivered from Sentinel-1 platforms cover this time span through to Mar, 2022 and consists of daily netCDF files, while the NRT component of the dataset is producing a 6-hourly netCDF file for each platform (A and B) and includes data that has been acquired in ...