Operational Assimilation of Spectral Wave Data From the Sofar Spotter Network

Abstract Historically, the sparseness of in situ open‐ocean wave and weather observations has severely limited the forecast skill of weather over the ocean with major social and economic consequences for coastal communities and maritime industries. Ocean surface waves, specifically, are important fo...

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Main Authors: Isabel A. Houghton, Christie Hegermiller, Camille Teicheira, Pieter B. Smit
Format: Article
Language:English
Published: Wiley 2022-08-01
Series:Geophysical Research Letters
Subjects:
Online Access:https://doi.org/10.1029/2022GL098973
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author Isabel A. Houghton
Christie Hegermiller
Camille Teicheira
Pieter B. Smit
author_facet Isabel A. Houghton
Christie Hegermiller
Camille Teicheira
Pieter B. Smit
author_sort Isabel A. Houghton
collection DOAJ
description Abstract Historically, the sparseness of in situ open‐ocean wave and weather observations has severely limited the forecast skill of weather over the ocean with major social and economic consequences for coastal communities and maritime industries. Ocean surface waves, specifically, are important for the interaction between atmosphere and ocean, and thus key in modeling weather and climate processes. Here, we investigate the improvements achievable from a large distributed sensor network combined with advances in assimilation strategies. Wave spectra from a global network of over 600 Sofar Spotter buoys are assimilated into an operational global wave forecast via optimal interpolation to update model spectra to best fit observations. We demonstrate end‐to‐end improvements in forecast skill of significant wave height of 38%, and up to 45% for other bulk parameters. This shows distributed observations of the air‐sea interface, with advances in assimilation strategies, can reduce uncertainty in forecasts to dramatically improve earth system modeling.
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issn 0094-8276
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publishDate 2022-08-01
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series Geophysical Research Letters
spelling doaj-art-c3d02aeb488f42708dfdacf42a8ce7472025-08-20T02:12:53ZengWileyGeophysical Research Letters0094-82761944-80072022-08-014915n/an/a10.1029/2022GL098973Operational Assimilation of Spectral Wave Data From the Sofar Spotter NetworkIsabel A. Houghton0Christie Hegermiller1Camille Teicheira2Pieter B. Smit3Sofar Ocean Technologies San Francisco CA USASofar Ocean Technologies San Francisco CA USASofar Ocean Technologies San Francisco CA USASofar Ocean Technologies San Francisco CA USAAbstract Historically, the sparseness of in situ open‐ocean wave and weather observations has severely limited the forecast skill of weather over the ocean with major social and economic consequences for coastal communities and maritime industries. Ocean surface waves, specifically, are important for the interaction between atmosphere and ocean, and thus key in modeling weather and climate processes. Here, we investigate the improvements achievable from a large distributed sensor network combined with advances in assimilation strategies. Wave spectra from a global network of over 600 Sofar Spotter buoys are assimilated into an operational global wave forecast via optimal interpolation to update model spectra to best fit observations. We demonstrate end‐to‐end improvements in forecast skill of significant wave height of 38%, and up to 45% for other bulk parameters. This shows distributed observations of the air‐sea interface, with advances in assimilation strategies, can reduce uncertainty in forecasts to dramatically improve earth system modeling.https://doi.org/10.1029/2022GL098973data assimilationwave modelingdistributed sensingwave buoyswave spectra observationsair‐sea interface
spellingShingle Isabel A. Houghton
Christie Hegermiller
Camille Teicheira
Pieter B. Smit
Operational Assimilation of Spectral Wave Data From the Sofar Spotter Network
Geophysical Research Letters
data assimilation
wave modeling
distributed sensing
wave buoys
wave spectra observations
air‐sea interface
title Operational Assimilation of Spectral Wave Data From the Sofar Spotter Network
title_full Operational Assimilation of Spectral Wave Data From the Sofar Spotter Network
title_fullStr Operational Assimilation of Spectral Wave Data From the Sofar Spotter Network
title_full_unstemmed Operational Assimilation of Spectral Wave Data From the Sofar Spotter Network
title_short Operational Assimilation of Spectral Wave Data From the Sofar Spotter Network
title_sort operational assimilation of spectral wave data from the sofar spotter network
topic data assimilation
wave modeling
distributed sensing
wave buoys
wave spectra observations
air‐sea interface
url https://doi.org/10.1029/2022GL098973
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AT christiehegermiller operationalassimilationofspectralwavedatafromthesofarspotternetwork
AT camilleteicheira operationalassimilationofspectralwavedatafromthesofarspotternetwork
AT pieterbsmit operationalassimilationofspectralwavedatafromthesofarspotternetwork