Related Experiment Video
Updated: Jun 18, 2025
10:28
Investigating the Relationship between Sea Surface Chlorophyll and Major Features of the South China Sea with Satellite Information
Published on: June 13, 2020
5.8K
Enhanced Atlantic Meridional Mode predictability in a high-resolution prediction system.
Qiuying Zhang1, Ping Chang1,2, Dan Fu1
1Department of Oceanography, Texas A&M University, College Station, TX, USA.
Science Advances
|August 2, 2024
Summary
Improved climate models enhance multiyear sea surface temperature (SST) predictions in the tropical North Atlantic. This boosts tropical cyclone forecasting by better simulating the Atlantic Meridional Mode and wind-evaporation-SST feedback.
Area of Science:
- Climate Science
- Oceanography
- Meteorology
Background:
- Accurate multiyear sea surface temperature (SST) prediction in the tropical North Atlantic is crucial for understanding tropical cyclone activity.
- Recent high-resolution climate models show improved skill in predicting multiyear SSTs.
Purpose of the Study:
- To identify the reasons behind enhanced high-resolution prediction of tropical North Atlantic SSTs.
- To investigate the role of the Atlantic Meridional Mode and associated feedbacks in SST prediction.
Main Methods:
- Analysis of high-resolution climate prediction model outputs.
- Investigating the representation of the Atlantic Meridional Mode and wind-evaporation-SST feedback.
- Examining the impact of increased atmospheric model resolution on Intertropical Convergence Zone biases and surface wind responses.
Main Results:
- Higher atmospheric model resolution reduces Intertropical Convergence Zone bias.
- This leads to an enhanced surface wind response to cross-equatorial SST gradients.
- The improved wind response amplifies the positive feedback between heat fluxes and SST anomalies, enhancing prediction skill.
Conclusions:
- Advances in high-resolution climate prediction significantly improve multiyear SST forecasts in the tropical North Atlantic.
- These improvements are linked to a more realistic simulation of key ocean-atmosphere interactions.
- Enhanced SST prediction capabilities offer potential for extending the lead time of tropical cyclone forecasts.
Related Concept Videos
01:12Precipitation Processes
438
The experimental conditions in a gravimetric analysis should be optimized to maximize the particle size and purity of the obtained precipitate. Ideally, the concentration of the precipitating reagent should be low with effective stirring to maintain low relative supersaturation for the growth of large crystals. In homogeneous precipitation, the precipitant is slowly generated by a chemical reaction in the solution to avoid local reagent excesses. For example, urea decomposes gradually to...
438
01:18Boundary Layer Characteristics
63
When a fluid encounters a solid surface, a boundary layer forms due to the interaction between the fluid's motion and the stationary surface. This phenomenon is characterized by a thin region adjacent to the surface where viscous forces dominate, influencing the fluid's velocity profile. The development of the boundary layer begins at the leading edge of the surface and evolves as the fluid moves downstream.As the fluid flows over the surface, friction between the fluid and the wall slows down...
63
01:28Magnetostatic Boundary Conditions
895
An electric field suffers a discontinuity at a surface charge. Similarly, a magnetic field is discontinuous at a surface current. The perpendicular component of a magnetic field is continuous across the interface of two magnetic mediums. In contrast, its parallel component, perpendicular to the current, is discontinuous by the amount equal to the product of the vacuum permeability and the surface current. Like the scalar potential in electrostatics, the vector potential is also continuous...
895
01:03Precipitation Gravimetry
5.6K
Precipitation gravimetry is based on converting an analyte into a sparingly soluble precipitate, which is separated by filtration and weighed. An ideal precipitate should be pure, insoluble, of known composition, and easily filtered from the reaction mixture.
In determining nickel by gravimetric analysis, a precipitant of ethanolic dimethylglyoxime is added to a hot nickel salt solution. This is quickly followed by the dropwise addition of dilute ammonia solution until precipitation occurs. A...
In determining nickel by gravimetric analysis, a precipitant of ethanolic dimethylglyoxime is added to a hot nickel salt solution. This is quickly followed by the dropwise addition of dilute ammonia solution until precipitation occurs. A...
5.6K
01:17Precipitation and Co-precipitation
1.7K
Precipitation and coprecipitation methods can be used to separate a mixture of ions in a solution. In qualitative inorganic analysis, ions that form sparingly soluble precipitates with the same reagent are separated based on the differences in solubility products. For example, consider the separation of Cu(II) and Fe(II) ions by precipitation as insoluble sulfides. First, copper(II) sulfide is precipitated by the addition of acidic H2S, where the dissociation of H2S is suppressed. Adding H2S...
1.7K
01:26Influence of Earth's Curvature and Atmospheric Refraction on Leveling
89
During leveling, the Earth's curvature and atmospheric refraction introduce deviations in the line of sight from a true horizontal reference. When the line of sight is leveled, it remains perpendicular to the plumb line only at a single point. Beyond this, it deviates due to the Earth’s curvature, represented by the correction C. For a sight distance D, the deviation can be derived using the relationship:This relationship shows that the deviation increases quadratically with distance.
89