Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The growth of dry convection in the conditionally stable troposphere:
  Non-adiabatic effects   In this work, we study the growth characteristics of the convective
instability (CI) in the dry troposphere by relaxing the adiabatic
compressibility condition of Oberbeck-Boussinesq (OB) approach. We derive a new
non-adiabatic-Boussinesq (NAB) expression for the modified Brunt-Vaisala
frequency $(\omega_b)$, without considering the adiabatic compressibility
condition of OB approach. This NAB expression reduces to the known
Oberbeck-Boussinesq (OB) expression under adiabatic compressibility condition.
The NAB expression of $\omega_b$ is found to be modified from its OB
counterpart such that the stabilizing adiabatic lapse rate in OB expression is
replaced by a modified non-adiabatic lapse rate given as $\left(\eta - 1
\right)$ times the auto-convective lapse rate. Here $\eta$ is the ratio of
hydrostatic density to the total density. We perform numerical experiments of
CI for the conditionally stable troposphere i.e for the troposphere that has
the environmental lapse rate negative but smaller than the adiabatic lapse
rate. A novel feature of the present study is that the CI grows under proposed
NAB approach in spite the conditionally stable condition and remains suppressed
under OB approach. The present study, thus, proposes an alternative NAB
approach for the positive growth of the CI in the dry troposphere for which the
CI is conditionally stable under OB approach.

31
The categories of this paper are: ao-sci
27
The categories of this paper are: comp-gas
25
The categories of this paper are: patt-sol
13
The categories of this paper are: quant-ph
26
The categories of this paper are: bayes-an
18
The categories of this paper are: econ
33
The categories of this paper are: plasm-ph
9
The categories of this paper are: nlin
37
The categories of this paper are: supr-con
28
The categories of this paper are: alg-geom
20
The categories of this paper are: acc-phys
0
The categories of this paper are: hep-ph
34
The categories of this paper are: chem-ph
29
The categories of this paper are: funct-an
4
The categories of this paper are: cond-mat
21
The categories of this paper are: adap-org