Andy Lin | Dalhousie University (original) (raw)
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Papers by Andy Lin
Ocean Dynamics, Jan 1, 2012
This study examines the circulation and associated monthly-to-seasonal variability in the Caribbe... more This study examines the circulation and associated monthly-to-seasonal variability in the Caribbean Sea using a regional ocean circulation model. The model domain covers the region between 99.0 and 54.0°W and between 8.0 and 30.3°N, with a horizontal resolution of 1/6°. The ocean circulation model is driven by 6-hourly atmospheric reanalysis data from the National Center for Environmental Prediction and boundary forcing extracted from 5-day global ocean reanalysis data produced by Smith et al. (Mercator Newsletter 36:39-49, 2010), and integrated for 7 years. A comparison of model results with observations demonstrates that the regional ocean circulation model has skill in simulating circulation and associated variability in the study region. Analysis of the model results, as well as a companion model run that uses steady annual mean forcing, illustrates the role of Caribbean eddies for driving monthly-to-seasonal circulation variability in the model. It is found that vertically integrated transport between Nicaragua and Jamaica is influenced by the interaction between the density perturbations associated with Caribbean eddies and the Nicaraguan Ridge. The impact of Caribbean eddies squeezing through the Yucatan Channel is also discussed.
Journal of Geophysical Research, Jan 1, 2009
1] The relationship between Loop Current intrusion in the Gulf of Mexico and vertically integrate... more 1] The relationship between Loop Current intrusion in the Gulf of Mexico and vertically integrated transport variations through the Yucatan Channel is examined using models and the available observations. Transport in the model is found to be a minimum when the Loop Current intrudes strongly into the Gulf of Mexico, typically just before a ring is shed, and to be a maximum during the next growth phase in association with the buildup of warm water off the northwest coast of Cuba. We argue that the transport variations are part of a ''compensation effect'' in which transport variations through the Yucatan Channel are at least partly compensated by flow around Cuba. Numerical experiments show that the transport variations result from the interaction between the density anomalies associated with Loop Current intrusion and the variable bottom topography. The compensation effect is also shown to operate at shorter time scales (less than 30 days) in association with wind forcing.
Proceedings of the Eleventh …, Jan 1, 2010
... 1Department of Oceanography, Dalhousie University, Halifax, Nova Scotia, Canada, B3H 4Jl; pho... more ... 1Department of Oceanography, Dalhousie University, Halifax, Nova Scotia, Canada, B3H 4Jl; phone: 902-494-2718; Email: Yuehua.Lin@phys.ocean.dal.ca. ... The main flow (known as theCaribbean Current) from the Caribbean Sea passes through the Yucatan Channel as the ...
Ocean Dynamics, Jan 1, 2010
Ocean Dynamics, Jan 1, 2010
Ocean Dynamics, Jan 1, 2012
This study examines the circulation and associated monthly-to-seasonal variability in the Caribbe... more This study examines the circulation and associated monthly-to-seasonal variability in the Caribbean Sea using a regional ocean circulation model. The model domain covers the region between 99.0 and 54.0°W and between 8.0 and 30.3°N, with a horizontal resolution of 1/6°. The ocean circulation model is driven by 6-hourly atmospheric reanalysis data from the National Center for Environmental Prediction and boundary forcing extracted from 5-day global ocean reanalysis data produced by Smith et al. (Mercator Newsletter 36:39-49, 2010), and integrated for 7 years. A comparison of model results with observations demonstrates that the regional ocean circulation model has skill in simulating circulation and associated variability in the study region. Analysis of the model results, as well as a companion model run that uses steady annual mean forcing, illustrates the role of Caribbean eddies for driving monthly-to-seasonal circulation variability in the model. It is found that vertically integrated transport between Nicaragua and Jamaica is influenced by the interaction between the density perturbations associated with Caribbean eddies and the Nicaraguan Ridge. The impact of Caribbean eddies squeezing through the Yucatan Channel is also discussed.
Journal of Geophysical Research, Jan 1, 2009
1] The relationship between Loop Current intrusion in the Gulf of Mexico and vertically integrate... more 1] The relationship between Loop Current intrusion in the Gulf of Mexico and vertically integrated transport variations through the Yucatan Channel is examined using models and the available observations. Transport in the model is found to be a minimum when the Loop Current intrudes strongly into the Gulf of Mexico, typically just before a ring is shed, and to be a maximum during the next growth phase in association with the buildup of warm water off the northwest coast of Cuba. We argue that the transport variations are part of a ''compensation effect'' in which transport variations through the Yucatan Channel are at least partly compensated by flow around Cuba. Numerical experiments show that the transport variations result from the interaction between the density anomalies associated with Loop Current intrusion and the variable bottom topography. The compensation effect is also shown to operate at shorter time scales (less than 30 days) in association with wind forcing.
Proceedings of the Eleventh …, Jan 1, 2010
... 1Department of Oceanography, Dalhousie University, Halifax, Nova Scotia, Canada, B3H 4Jl; pho... more ... 1Department of Oceanography, Dalhousie University, Halifax, Nova Scotia, Canada, B3H 4Jl; phone: 902-494-2718; Email: Yuehua.Lin@phys.ocean.dal.ca. ... The main flow (known as theCaribbean Current) from the Caribbean Sea passes through the Yucatan Channel as the ...
Ocean Dynamics, Jan 1, 2010
Ocean Dynamics, Jan 1, 2010