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\section{�n�\�ʃt���b�N�X}
�n�\�ʂ���̉^����,~�M,~�����C�̃t���b�N�X�͒���~(1994)~�̂悤�ɒP���ȃo���N�@��
����Ē莮�����Ă���.
\begin{align}
F_{u} &= -C_D V_{sfc} \rho u_{z=0}, \\
F_{\theta}    &= -C_D V_{sfc} \rho (T_{z=0} - T_{sfc}), \\
F_{q_v}       &= -C_D V_{sfc} \rho (q_{vz=0} - q_{sfc}) \nonumber \\
              &= -C_D V_{sfc} \rho \left(q_{vz=0} - \frac{M_v}{M_d}\frac{e_{sfc}}{p_{sfc}}
               \right)
\end{align}
������,~$C_D = 0.0015$~�̓o���N�W��,~$e$ �͖O�a���C���ł���,~���t���Y����``$_{z=0}$"~�͑�C�ŉ��w�̒l���Ӗ���,~���t���Y��
��``$_{sfc}$"~�Œn�\�ʂ̒l��\��.~�܂�,~�n�\�ʕ���$V_{sfc}$ ��
\[
V_{sfc} = \sqrt{u^2 + v_0^2}
\]
�ŕ\�����.~������$v_0 = 3$~[m/s]~�͕����̍Œ�l�ł���,~���������Ă��Ȃ��Ă����˂ɂ����M������Ƃ�����
�����I�Ȍ��ۂ��N���邱�Ƃ�ۏ؂���.