Which outcome results to coastal ecosystems when geostrophic flow weakens?

💡 Explanation

Reduced geostrophic flow reduces gyre driven redistribution, because the driving force for transport weakens diminishing their physical influence on water masses; therefore nutrient and dissolved oxygen delivery decreases, rather than an increase of coastline interaction.

• Along a gradually sloping coastline, which morphological outcome results when wave refraction concentrates energy unevenly due to nearshore bathymetry?
• Which mechanism limits biological productivity in stagnant, deep ocean basins cut off from surface circulation?
• Which phenomenon exacerbates tsunami generation immediately following a megathrust earthquake within coastal subduction zones?
• Which mechanism causes enhanced coastal upwelling when trade winds weaken along the equator?
• Which effect is directly intensified when El Niño-Southern Oscillation (ENSO) causes a temporary reversal of the Walker circulation?
• Which outcome is most likely downstream when unusually strong Benguela upwelling occurs off Namibia?