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Airborne lidar altimetry can measure the sea surface height (SSH) over scales ranging from hundreds of kilometers to a few meters. This collection has SSH observations taken during an airborne lidar campaign conducted in the spring of 2019 off the California coast in support of the Surface Water and Ocean Topography (SWOT) mission. The collection consists of NetCDF files with all data necessary to reproduce the figures in Villas Bôas et al. (2022), which were based on flights from March 28, 2019, and April 9, 2019. The data can be used in conjunction with code available in the following GitHub repository: https://github.com/biavillasboas/BroadbandSpectrum The production of this collection was supported by NASA award 80NSSC20K1136 through the SWOT program; NASA award 80NSSC19K1004 through the S-MODE program, and through NASA JPL contract 1618801. Research Data Curation Program, UC San Diego, La Jolla, 92093-0175 (https://lib.ucsd.edu/rdcp) Product license information: Ssalto/Duacs altimeter products produced and distributed by the Copernicus Marine and Environment Monitoring Service (CMEMS). For instructions on how to cite Ssalto/Duacs data, go to https://www.aviso.altimetry.fr/es/data/product-information/citation-and-aviso-products-licence.html Acknowledgements: Thank you to the CNES & CLS teams for providing the geophysical corrections along the MASS flight tracks. Villas Bôas, Ana B.; Lenain, Luc; Statom, Nicholas (2022). Data from: A Broadband View of the Sea Surface Height Wavenumber Spectrum. UC San Diego Library Digital Collections. https://doi.org/10.6075/J0W0963R The contents of the directory contained in the .tgz file are described below. 1- AVISO/ Gridded AVISO sea level anomaly in the California Current region for March 28, 2019 (aviso_20190328.nc) and April 9, 2019 (aviso_20190409.nc) 2- CDIP/ Wave buoy data from The Coastal Data Information Program (CDIP). File names follow the convention CDIP(buoy ID)_YYYYMMDD.nc 3- ERA5/ Gridded ERA 5 10 m wind velocities in the California Current region for March 28, 2019 (ERA5_20190328.nc) and April 9, 2019 (ERA5_20190409.nc) 4- MASS/ Airborne measurements from Scripps' Modular Aerial Sensing System (MASS) for two flight dates: March 28, 2019 (20190328) and April 9, 2019 (20190409) binned_point_cloud/ Along-track averaged sea surface height measurements from MASS computed after binning the lidar point clound into 1 m bins. The data is separated by crosswind (crosswind/) and upwind-downwind (upwind/) tracks. dirspec/ Two-dimensional surface wave spectrum computed from MASS based on sea surface height data grided on 0.5 m horizontal bins. Wave bulk parameters such as significant wave height, direction, and wavelength are also included in the files. 5- chereskin/ AltiKa sea surface height spectrum as appears in Figure 14 of Chereskin et al., 2019.
Surface waves Surface Water and Ocean Topography (SWOT) Mesoscale Submesoscale Satellite altimetry