Recent activity in Ocean Sciences

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...

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...

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

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 $\...

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{...

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...

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

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

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...

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

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

\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...

\begin{tabular}{|c|c|}\hline Q. 163 & \begin{tabular}{l}The following illustration depicts the circulation pattern in the North Indian Ocean \\during the southwest (June-...

\begin{tabular}{|c|c|}\hline Q. 164 & \begin{tabular}{l}From the following list identify the region that has low chlorophyll and low \\nutrients.\end{tabular} \\\hline& U...

\begin{tabular}{l|l|}Q.166 & Choose the correct statement(s) in context to Ekman spiral from the following: \\\hline& The balance of Coriolis force and pressure \\\hline&...

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...

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

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

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