Recent questions and answers in Ocean Sciences

Which of the following statements based on the given figure is / are TRUE with respect to the upwelling process in the ocean?Wind is northerly.Wind is southerly.Event occ...

From the given cases ( $\mathrm{P}, \mathrm{Q}, \mathrm{R}$ and $\mathrm{S}$), which represents the annual mean profile of dissolved oxygen in the Bay of Bengal?$\mathrm{...

The given figure illustrates a subtropical gyre in the Southern Indian Ocean. Identify the currents in the correct sequence of $\mathrm{P}, \mathrm{Q}, \mathrm{R}$ and $\...

Which of the following is/are generally associated within a cyclonic eddy in the northern Indian Ocean?UpwellingPositive sea level anomalyNegative sea level anomalyDownwe...

Which of the following statements is/are correct for the Equatorial Indian Ocean during a positive Indian Ocean Dipole event?Strong surface westerly windsWeak surface wes...

A steady westerly wind is blowing over the ocean surface at a latitude of $30^{\circ} \mathrm{N}$ and exerting a wind stress of $0.8 \mathrm{~N} \mathrm{~m}^{-2}$.The mag...

​​​​The directions of the South Pacific Subtropical Gyre and the North Atlantic Subtropical Gyre are $\_\_\_\_\_$ and $\_\_\_\_\_$, respectively.clockwise; counter-clockw...

​​​Which of the following Period(s) correspond(s) to wind waves?$5$ seconds$20$ seconds$6$ hours$12$ hours

​​​The sea surface height concentric isolines ($\mathbf{L1}$ and $\mathbf{L2}$ in $\mathrm{cm}$ ) and the distance between them ( $\mathbf{d} \mathbf{x}$ in $\mathrm{km}$...

​​​​The vertical (depth) profiles for three parameters $\mathbf{P1}$, $\mathbf{P2}$, and $\mathbf{P3}$ in the northern Indian Ocean are given in the figure below. The val...

​​​​The zonal gradient of meridional current and the meridional gradient of zonal current is $-0.3 \times 10^{-3} \mathrm{~s}^{-1}$ and $0.3 \times 10^{-3} \mathrm{~s}^{-...

​​​​​The north-Atlantic deep-water is associated with $\_\_\_\_\_\_\_$low temperature and low salinityhigh temperature and high salinityhigh temperature and low salinityl...

The Sea Surface Temperature, Air Temperature and $10 \: m$ Wind Speed at the locations $\textsf{P}$ and $\textsf{Q}$ are given in the table below.[Assume the density of a...

A westerly wind is blowing in the Northern Hemisphere. What is the direction of net mass transport in the Ekman layer?SouthwardNorthwardNorth-EastwardSouth-Westward

Transfer of energy between ocean and atmosphere in the form of sensible heat flux is due todifference in specific humidity between ocean and atmospheredifference in tempe...

Density of sea-water does not directly depend on __________.temperature of sea watersalinity of sea waterpressure of sea watervorticity of sea water

Upwelling region has __________.low sea surface heighthigh sea surface heightdecrease in primary productionlow nutrients

Which of the following is/are true about ocean circulation?Wind driven circulation, with constant Coriolis force, can produce narrow and fast western boundary currents.Wi...

Svedrup's equation deals with:curl of wind stresspressure gradient forcevariation of Coriolis force with latitudemeridional transport of sea water

pH of the water in the oceans is/are directly affected by:water temperaturewater salinitytotal alkalinitywater pressure

During summer monsoon season, water from Arabian Sea spreads over the southwestern Bay of Bengal. This leads toformation of salt fingersupwellingwestern boundary currentd...

A homogeneous, incompressible, steady ocean of mixed layer depth of $20$ m has a velocity gradient $-5 \times 10^{-8} \mathrm{~s}^{-1}$ and $-8.3 \times 10^{-8} \mathrm{~...

Wind blows over the ocean surface at a speed of $10 \mathrm{~m} \mathrm{~s}^{-1}$. Calculate the magnitude of wind stress, in Pa , using bulk formulation. $\text{(Drag co...

Two stations 'A' and 'B', present at a latitude of $30^{\circ} \mathrm{N}$ are separated by a distance of $10$ km . If the difference in sea surface height between these ...

\begin{tabular}{l|l}Q.154 & The net water level elevation near the coast arising due to a tropical-cyclone- \\induced storm is a combination of the following factors \\& ...

\begin{tabular}{l|l}Q. 155 & \begin{tabular}{l}The typical speeds of a tsunami wave in water depths of $10 \mathrm{~m}, 100 \mathrm{~m}$, and 1000 \\$\mathrm{~m}$, respec...

\begin{tabular}{|l|l}Q.156 & Which classification of tides best represents the west coast of India? \\\hline& Diurnal and Mixed \\\hline& Semidiurnal and Mixed \\\hline& ...

\begin{tabular}{|c|c|}\hline Q. 158 & \begin{tabular}{l}Consider the following options and pick out the right choice. The solubility of a \\gas in sea water increases wit...

\begin{tabular}{l|l|}Q.159 & From the list given below, identify the organism type in the biological pump that \\takes up carbon dioxide from the atmosphere into the ocea...

\begin{tabular}{|l|l}Q.160 & \begin{tabular}{l}The amount of $\mathrm{CO}_{2}$ that can be absorbed \\seawater decreases.\end{tabular} \\\hline& Remains the same the temp...