Recent questions and answers in Atmospheric and Oceanic Sciences

Which of the following is TRUE for the 'Summer solistice' in the Northern Hemisphere?Longest night of the yearEqual duration of daylight and nightLongest duration of dayl...

Which of the following options are parts of the atmospheric boundary layer?Benthic boundary layer, Internal boundary layerMixed layer, Entrainment layerMixed layer, Inter...

Which of the following weather systems has the shortest duration of lifecycle?Tropical CyclonesThunderstormsWestern DisturbanceWinter Monsoon

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...

The temperature of a dry air parcel is $20^{\circ} \mathrm{C}$ at a height of $150$ $\mathrm{m}$ with atmospheric pressure of $1000$ $\mathrm{hPa}$. If the air parcel ris...

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...

In a free atmosphere without friction, if the pressure increases by one kilo Pascal eastward across a distance of $200$ $\mathrm{km}$, the magnitude of geostrophic flow (...

Which of the following is/are greenhouse gas(es), as identified by the Intergovernmental Panel on Climate Change $\text{(IPCC)}$?Nitrogen dioxide ( $\mathrm{NO}_{2}$)Nitr...

Which one of the following defines the angle made by the line joining the centers of the sun and the earth with its projection on the equatorial plane?DeclinationLatitude...

​​​​​During which of the following times of the day is the $2 \: \mathrm{m}$ air temperature usually the lowest at a tropical location?At sunriseAt noonAt sunsetAt midnig...

​​​At which of the following locations in the atmosphere is the anvil of a towering cumulonimbus cloud usually located?Top of the surface layerTop of the boundary layerTr...

​​​Which one of the following is the main reason why tropical cyclones rarely form over the Bay of Bengal during the summer monsoon season?Strong vertical wind shear.Weak...

​​​​​Which one of the following is the main cause of the land-sea temperature contrast that drives phenomena like sea breeze and the Indian summer monsoon?Difference in t...

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

​​​​​The time period of the inertial oscillation at a location $\textsf{R}$ is $1.5$ times that of a particle moving at a speed of $0.5 \mathrm{~m} \mathrm{~s}^{-1}$ at a...

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

Acceleration due to Coriolis force of a water parcel at a location $\mathrm{P}\left(67^{\circ} \mathrm{E}, 20^{\circ} \mathrm{N}\right)$ moving with a speed of $0.35 \mat...

​​​​A rotating weather system has a tangential velocity of $100 \mathrm{~m} \mathrm{~s}^{-1}$, diameter of $1 \: \mathrm{ km}$ , and located at a latitude where the Corio...

​​​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...

​​​In the figures given below, $\mathbf{L}$ and $\mathbf{H}$ indicate low and high pressure centers, respectively; $\mathbf{PGF}$, $\mathbf{CoF}$ and $\mathbf{CeF}$ indic...

A column of air mass extending from surface to a height of $10 \:\mathrm{km}$ moving eastward along $30^{\circ} \: \mathrm{N}$ strikes a north-south oriented mountain ran...

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