Recent activity in Atmospheric Science

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...

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...

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 (...

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...

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

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

​​​​​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 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...

​​​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...

​​​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...

​​​​​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...

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...

​​​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 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...

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...

\begin{tabular}{|c|c|}\hline Q. 157 & \begin{tabular}{l}The variation in geostrophic winds with height, in particular, at the atmospheric \\boundary layer, considering th...

\begin{tabular}{|c|c|}\hline Q. 161 & Which among the following gases has the highest global warming potential? \\\hline& $\mathrm{CO}_{2}$ \\\hline& Water vapor \\\hline...

\begin{tabular}{l|l}Q.162 & \begin{tabular}{l}What will happen to the speed of a balanced flow as one moves across the isobar \\along a particular latitude?\end{tabular} ...

\begin{tabular}{|c|c|c|}\hline \multirow[t]{6}{*}{ Q. 165} & \multicolumn{2}{|c|}{\begin{tabular}{l}Match the following physical phenomena from the perspective of monsoon...

\begin{tabular}{|l|l|}\hline Q.167 & Which of the following is/are associated with winter rainfall over India? \\\hline& Northeast monsoon \\\hline& Southwest monsoon \\\...

\begin{tabular}{l|l}Q. 168 & If the global albedo is increased from 0.3 to 0.4 , the global radiative equilibrium \\temperature (in $\mathrm{K}$ ) would decrease by \\(co...

Q. 169 When a parcel of dry air rises at a rate of $2 \mathrm{~cm} \mathrm{~s}^{-1}$ vertically, what should be the rate of heating per unit mass in $\mathrm{J} \mathrm{s...

Q. 171 A parcel of dry air having an initial temperature of $30^{\circ} \mathrm{C}$ at $1000 \mathrm{hPa}$ level is lifted adiabatically. At what pressure (in $\mathrm{hP...

\begin{tabular}{|c|c|}\hline Q. 174 & \begin{tabular}{l}Consider the two parallel isobars separated by a spacing of $250 \mathrm{~km}$ at $30^{\circ} \mathrm{N}$ \\(air d...

Which one of the following feature is NOT necessary for the formation of Indian summer monsoon?Land-sea temperature contrastEl NiñoSeasonal reversal of windsMeridional pr...

The work done by Coriolis force isdirectly proportional to velocitya function of latitudezeroalways positive except at the equator

Which of the following is a correct statement?Tropics receive more incoming short-wave radiation than the outgoing long-wave radiation.Polar regions do not emit any long-...

A value of outgoing long-wave radiation $\text{(OLR)}$ $<200 \mathrm{~W} \mathrm{~m}^{-2}$ over the tropical oceans indicates ___________high pressure regiondeep convecti...

Consider an atmospheric flow at $45^{\circ} \mathrm{N}$, which is parallel to latitude and isobars. Which of the following is/are true when there is no friction?Flow is i...