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2. (10 points) Estimate the rate at which air must subside over the Sahara to balance the heat loss
by radiation (assume RTOA=20Wm2 ). Hint: Approximate the vertical gradient of moist static
energy with that of potential energy and then use downward advection against this gradient to
balance a radiative heat loss, e.g., w[d(gz)/dz]=wg=RTOA(g/ps).

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2. (10 points) Estimate the rate at which air must subside over the S.pdf

  • 1. 2. (10 points) Estimate the rate at which air must subside over the Sahara to balance the heat loss by radiation (assume RTOA=20Wm2 ). Hint: Approximate the vertical gradient of moist static energy with that of potential energy and then use downward advection against this gradient to balance a radiative heat loss, e.g., w[d(gz)/dz]=wg=RTOA(g/ps).