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Full-Text Articles in Life Sciences
Patterns Of Ocean Current Variability On The West Florida Shelf Using The Self-Organizing Map, Yonggang Liu, Robert H. Weisberg
Patterns Of Ocean Current Variability On The West Florida Shelf Using The Self-Organizing Map, Yonggang Liu, Robert H. Weisberg
Marine Science Faculty Publications
Patterns of ocean current variability are examined on the West Florida Shelf by a neural network analysis based on the self‐organizing map (SOM), using time series of moored velocity data that span the interval October 1998–September 2001. Three characteristic spatial patterns are extracted in a 3 × 4 SOM array: spatially coherent southeastward and northwestward flow patterns with strong currents and a transition pattern of weak currents. On the synoptic weather timescale the variations of these patterns are coherent with the local winds. On the seasonal timescale the variations of the patterns are coherent with both the local winds and …
Interannual And Decadal Variability Of The Western Pacific Sea Surface Condition For The Years 1787-2000: Reconstruction Based On Stable Isotope Record From A Guam Coral, Ryuji Asami, Tsutomu Yamada, Yasufumi Iryu, Terrence M. Quinn, Christopher P. Meyer, Gustav Paulay
Interannual And Decadal Variability Of The Western Pacific Sea Surface Condition For The Years 1787-2000: Reconstruction Based On Stable Isotope Record From A Guam Coral, Ryuji Asami, Tsutomu Yamada, Yasufumi Iryu, Terrence M. Quinn, Christopher P. Meyer, Gustav Paulay
Marine Science Faculty Publications
We present a monthly resolved, 213‐year stable isotope time series from a coral from Guam (13°N, 145°E), which is located on the northern edge of the western Pacific warm pool. Oxygen isotopic composition of the coral skeleton (δ18Ocoral) shows seasonal, interannual, and decadal variability, which documents significant oceanographic changes related to thermal and hydrologic variations in this region. The δ18Ocoral anomaly reflects sea surface temperature (SST) anomaly and sea surface salinity (SSS) anomaly with significant r values of −0.69 and 0.49, respectively, which are strongly linked to oceanographic changes that occur during El …
Interannual Temperature Variability In The Tropical Pacific And Lagrangian Heat Transport Pathways, C. L. Holland, Gary T. Mitchum
Interannual Temperature Variability In The Tropical Pacific And Lagrangian Heat Transport Pathways, C. L. Holland, Gary T. Mitchum
Marine Science Faculty Publications
In a previous study we found that volume variability during an El Ni (n) over tildeo-Southern Oscillation (ENSO) event is well described by variations in, and redistribution of, the heat content for any given region within the tropical Pacific. In this study we use numerical model temperature and velocity fields in a Lagrangian analysis of heat content variability. These three-dimensional fields are used to examine specific warm and cool anomaly regions by computing trajectories back through time to the origins of the anomalously warm or cool water. In particular, we find that three distinct pathways are important in creating and …
Diffuse Attenuation Coefficient Of Downwelling Irradiance: An Evaluation Of Remote Sensing Methods, Zhongping Lee, Miroslaw Darecki, Kendall L. Carder, Curtiss O. Davis, Dariusz Stramski, W. Joseph Rhea
Diffuse Attenuation Coefficient Of Downwelling Irradiance: An Evaluation Of Remote Sensing Methods, Zhongping Lee, Miroslaw Darecki, Kendall L. Carder, Curtiss O. Davis, Dariusz Stramski, W. Joseph Rhea
Marine Science Faculty Publications
The propagation of downwelling irradiance at wavelength λ from surface to a depth (z) in the ocean is governed by the diffuse attenuation coefficient, (λ). There are two standard methods for the derivation of (λ) in remote sensing, which both are based on empirical relationships involving the blue‐to‐green ratio of ocean color. Recently, a semianalytical method to derive (λ) from reflectance has also been developed. In this study, using (490) and (443) as examples, we compare the (λ) values derived from the three methods using data collected in three different regions that cover oceanic and coastal waters, with …