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

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 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.

• 2019-03-28 to 2019-04-10

• 2022

• Villas Bôas, Ana Beatriz

• Lenain, Luc

• Statom, Nicholas N.

The data in this collection can be used in conjunction with Jupyter Notebooks available at https://github.com/biavillasboas/BroadbandSpectrum

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.

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.

• Mesoscale
• Satellite altimetry
• Submesoscale
• Surface Water and Ocean Topography (SWOT)
• Surface waves

Polygon: 41,-128 41,-122 33,-122 33,-128 41,-128

• data

• English

Identifier: Ana B. Villas Bôas: https://orcid.org/0000-0001-6767-6556

Identifier: Luc Lenain: https://orcid.org/0000-0001-9808-1563

Primary associated publication

• Villas Bôas, Ana B.; Lenain, Luc; Statom, Nicholas (2022). A Broadband View of the Sea Surface Height Wavenumber Spectrum. Geophysical Research Letters. https://doi.org/10.1029/2021GL096699

Source data

• Data courtesy of the Coastal Data Information Program (CDIP), Integrative Oceanography Division, operated by the Scripps Institution of Oceanography, under the sponsorship of the U.S. Army Corps of Engineers and the California Department of Parks and Recreation.” https://doi.org/10.18437/C7WC72
• The results contain modified Copernicus Climate Change Service information 2020. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains. https://doi.org/10.24381/cds.adbb2d47
• The results contain sea level anomaly data modified from the Ssalto/Duacs altimeter products which are produced and distributed by the Copernicus Marine and Environment Monitoring Service (CMEMS), available at https://marine.copernicus.eu

Software

• Jupyter Notebooks available at https://github.com/biavillasboas/BroadbandSpectrum

Reference

• Spectral analysis from AltiKa measurements that appear in Chereskin, Teresa K., et al. "Characterizing the transition from balanced to unbalanced motions in the southern California Current." Journal of Geophysical Research: Oceans 124.3 (2019): 2088-2109. https://doi.org/10.1029/2018JC014583

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2024-01-16