Abstract
Surface current maps derived from High Frequency (HF) Doppler radar observations provide valuable information for numerical ocean model's validation, as well as for improvement of model nowcasts and forecasts. Assimilation of HF radar (CODAR)-derived surface currents into the fine-resolution numerical ocean model of the Monterey Bay Area is discussed in this paper. Effective data assimilation techniques for surface information rely on methods for projecting this information into the interior of the ocean for improving dynamical forecasts of the currents and hydrographic structure of the ocean's interior. For this reason, special attention is devoted in this paper to the sub-surface projection of CODAR-derived surface information in three-dimensional data assimilation of surface currents. Different approaches based on the modification of the ICON model surface forcing (wind forcing) as well as direct instantaneous projection of surface information into the subsurface of the model are presented and compared. The significant improvement of correlation between the model and ADCP subsurface currents was achieved when the subsurface projection of the corrections to the model surface currents was based on the Ekman theory.
| Original language | English |
|---|---|
| Title of host publication | Estuarine and Coastal Modeling |
| Subtitle of host publication | Proceedings of the Seventh International Conference |
| Editors | M.L. Spaulding, M.L. Spaulding |
| Pages | 434-446 |
| Number of pages | 13 |
| Publication status | Published - 2001 Dec 1 |
| Event | Estuarine and Coastal Modeling: Proceedings of the Seventh International Conference - St. Petersburg, FL, United States Duration: 2001 Nov 5 → 2001 Nov 7 |
Other
| Other | Estuarine and Coastal Modeling: Proceedings of the Seventh International Conference |
|---|---|
| Country | United States |
| City | St. Petersburg, FL |
| Period | 01/11/5 → 01/11/7 |
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ASJC Scopus subject areas
- Engineering(all)
Cite this
High frequency radar data assimilation in the Monterey Bay. / Shulman, I.; Wu, C. R.; Paduan, J. D.; Lewis, J. K.; Rosenfeld, L. K.; Ramp, S. R.
Estuarine and Coastal Modeling: Proceedings of the Seventh International Conference. ed. / M.L. Spaulding; M.L. Spaulding. 2001. p. 434-446.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - High frequency radar data assimilation in the Monterey Bay
AU - Shulman, I.
AU - Wu, C. R.
AU - Paduan, J. D.
AU - Lewis, J. K.
AU - Rosenfeld, L. K.
AU - Ramp, S. R.
PY - 2001/12/1
Y1 - 2001/12/1
N2 - Surface current maps derived from High Frequency (HF) Doppler radar observations provide valuable information for numerical ocean model's validation, as well as for improvement of model nowcasts and forecasts. Assimilation of HF radar (CODAR)-derived surface currents into the fine-resolution numerical ocean model of the Monterey Bay Area is discussed in this paper. Effective data assimilation techniques for surface information rely on methods for projecting this information into the interior of the ocean for improving dynamical forecasts of the currents and hydrographic structure of the ocean's interior. For this reason, special attention is devoted in this paper to the sub-surface projection of CODAR-derived surface information in three-dimensional data assimilation of surface currents. Different approaches based on the modification of the ICON model surface forcing (wind forcing) as well as direct instantaneous projection of surface information into the subsurface of the model are presented and compared. The significant improvement of correlation between the model and ADCP subsurface currents was achieved when the subsurface projection of the corrections to the model surface currents was based on the Ekman theory.
AB - Surface current maps derived from High Frequency (HF) Doppler radar observations provide valuable information for numerical ocean model's validation, as well as for improvement of model nowcasts and forecasts. Assimilation of HF radar (CODAR)-derived surface currents into the fine-resolution numerical ocean model of the Monterey Bay Area is discussed in this paper. Effective data assimilation techniques for surface information rely on methods for projecting this information into the interior of the ocean for improving dynamical forecasts of the currents and hydrographic structure of the ocean's interior. For this reason, special attention is devoted in this paper to the sub-surface projection of CODAR-derived surface information in three-dimensional data assimilation of surface currents. Different approaches based on the modification of the ICON model surface forcing (wind forcing) as well as direct instantaneous projection of surface information into the subsurface of the model are presented and compared. The significant improvement of correlation between the model and ADCP subsurface currents was achieved when the subsurface projection of the corrections to the model surface currents was based on the Ekman theory.
UR - http://www.scopus.com/inward/record.url?scp=0035785130&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0035785130&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:0035785130
SN - 0784406286
SP - 434
EP - 446
BT - Estuarine and Coastal Modeling
A2 - Spaulding, M.L.
A2 - Spaulding, M.L.
ER -