Investigating Predictability of DIC and SST in the Argentine Basin Through Wind Stress Perturbation Experiments
Affiliation
Department of Geosciences, University of ArizonaIssue Date
2021-11-09Keywords
Argentine basinbiogeochemical (BGC) ocean modeling
ocean forecasting
perturbation experiment
predictability
Metadata
Show full item recordPublisher
American Geophysical Union (AGU)Citation
Swierczek, S., Mazloff, M. R., & Russell, J. L. (2021). Investigating Predictability of DIC and SST in the Argentine Basin Through Wind Stress Perturbation Experiments. Geophysical Research Letters.Journal
Geophysical Research LettersRights
© 2021. American Geophysical Union. All Rights Reserved.Collection Information
This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.Abstract
The confluence of the Malvinas and Brazil currents over the Argentine Basin give the region chaotic dynamics and severely limit potential predictability. To probe the forecast horizon for ocean surface quantities of temperature and carbon, we construct regional models of the Argentine Basin with biogeochemistry at 1/3° and 1/12° resolution and design a series of experiments. We add positive and negative zonal wind stress anomalies over small and large areas during a short period in different model runs. We calculate the response of the surface temperature and DIC. The 1/3° model maintains predictability for up to 45 days, while the 1/12° model has a shorter window of about two weeks. However, the 1/3° model response is only consistent with the 1/12° model for about 8 days calling into question the potential predictive skill of the coarser model at longer lead times.Note
6 month embargo; published online: 09 November 2021ISSN
0094-8276EISSN
1944-8007Version
Final published versionae974a485f413a2113503eed53cd6c53
10.1029/2021gl095504