List of top Atmospheric and Ocean Science Questions asked in GATE XE

Coral reefs are found primarily in tropical and subtropical shallow seaways. Which of the following statement(s) is/are correct?
Consider tropical high-level clouds and low-level stratus clouds with bases at 12 km and 1 km above the surface of the Earth, respectively. Which of the following statement(s) is/are correct?
Which of the following statement(s) is/are true with regard to the Hadley circulation?
The Ekman layer thickness, if turbulent diffusivity is 0.01 m\(^2\) s\(^{-1}\), is \(\underline{\hspace{2cm}}\) m. Take Coriolis parameter to be \( 10^{-4} \) s\(^{-1}\). Calculate to the nearest integer.
Which of the following statement(s) is/are correct in the context of Sverdrup transport?
Which of the following statement(s) is/are true about the ocean circulation?
CO\(_2\) concentration in the Earth's atmosphere is increasing because 50% of the annual anthropogenic emissions are retained in the atmosphere. If nations agree to reduce annual CO\(_2\) emissions by one Giga ton every year starting from 2021, then in which year will the CO\(_2\) concentration in the atmosphere stop rising due to anthropogenic emissions? Take the anthropogenic CO\(_2\) emissions in 2020 as 40 Giga tons.
The water vapour mixing ratio of an air parcel increases from 10 g kg\(^{-1}\) to 20 g kg\(^{-1}\) at a constant pressure of 1010 hPa and temperature of 300 K. The change in virtual temperature is \(\underline{\hspace{2cm}}\) K (to one decimal place).
The psychrometric equation, which is useful in measuring humidity, is derived assuming the following process(es).
Over the open ocean, if the air-sea temperature difference is zero, then which of the following statements is/are always true?
The relevant nondimensional number in deciding deepening of the thermocline driven by instability of ocean currents is
During July-August, the highest number of monsoon low pressure systems form over
Western Boundary Current in the ocean is primarily due to