Gce Model Questions Vol1 2017 Geography Question 28
Practice objective / multiple choice question 28 from the 2017 Gce Model Questions Vol1 Geography examination.
At a weather station the surface temperature is \(30^{\circ}\text{C}\) and the relative humidity is \(70\%\). Using the Magnus formula, the dew‑point temperature \(T_d\) (in °C) can be estimated by\n\[\n\gamma = \frac{a T}{b+T} + \ln\left(\frac{RH}{100}\right),\qquad\nT_d = \frac{b \gamma}{a - \gamma},\n\]\nwhere \(a = 17.27\) and \(b = 237.7\). The lifting condensation level (LCL) in metres can then be approximated by \(LCL = 125\,(T - T_d)\). Determine whether the resulting cloud base is a low cloud (LCL < 500 m) or a mid‑level cloud (500 m ≤ LCL < 2000 m).
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About This Question
This is Gce Model Questions Vol1 2017 Geography Question 28. It is one of the objective questions from the 2017 Gce Model Questions Vol1 Geography examination.
Difficulty level: Medium .
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