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module cv30_feed_m |
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implicit none |
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contains |
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SUBROUTINE cv30_feed(t1, q1, qs1, p1, ph1, gz1, icb1, iflag1, tnk1, qnk1, & |
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gznk1, plcl1) |
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! Purpose: convective feed |
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! Assuming origin level of ascending parcels is minorig. |
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use cv30_param_m, only: minorig, nl |
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USE dimphy, ONLY: klev, klon |
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use numer_rec_95, only: locate |
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real, intent(in):: t1(:, :) ! (klon, klev) |
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real, intent(in):: q1(:, :), qs1(:, :), p1(:, :) ! (klon, klev) |
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real, intent(in):: ph1(:, :) ! (klon, klev+1) |
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real, intent(in):: gz1(:, :) ! (klon, klev) |
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! outputs: |
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integer, intent(out):: icb1(:) ! (klon) |
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! first level above lcl, 2 <= icb1 <= nl - 2 |
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integer, intent(out):: iflag1(:) ! (klon) |
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real tnk1(:), qnk1(:), gznk1(:) ! (klon) |
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real, intent(out):: plcl1(:) ! (klon) |
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! Local: |
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integer i |
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real rh(klon) |
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real, parameter:: A = 1669., B = 122. |
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!-------------------------------------------------------------------- |
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! Calculate lifted condensation level of air at parcel origin level |
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! (within 0.2 % of formula of Bolton, Mon. Wea. Rev., 1980) |
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where (t1(:, minorig) >= 250. .and. q1(:, minorig) > 0.) |
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! Parcel level temperature and specific humidity are reasonable. |
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tnk1 = t1(:, minorig) |
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qnk1 = q1(:, minorig) |
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gznk1 = gz1(:, minorig) |
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rh = qnk1 / qs1(:, minorig) |
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plcl1 = p1(:, minorig) * rh**(tnk1 / (A - B * rh - tnk1)) |
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iflag1 = 0 |
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elsewhere |
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plcl1 = 0. |
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iflag1 = 7 |
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end where |
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where (iflag1 == 0 .and. (plcl1 < 200. .or. plcl1 >= 2000.)) iflag1 = 8 |
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! Compute icb1: |
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do i = 1, klon |
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if (plcl1(i) <= ph1(i, nl - 2)) then |
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! Distinguish this case just so that icb1 = nl - 2, not nl = |
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! 3, for plcl1 exactly == ph1(i, nl - 2). Maybe not useful. |
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icb1(i) = nl - 2 |
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else |
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icb1(i) = locate(- ph1(i, 3:nl - 2), - plcl1(i), my_lbound = 3) |
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! {2 <= icb1(i) <= nl - 3} |
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! {ph1(i, icb1(i) + 1) < plcl1(i)} |
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! {plcl1(i) <= ph1(i, icb1(i)) or icb1(i) == 2} |
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end if |
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end do |
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where (icb1 == nl - 2 .and. iflag1 == 0) iflag1 = 9 |
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! {(2 <= icb1(i) <= nl - 3 and ph1(i, icb1(i) + 1) < plcl1(i) and |
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! (plcl1(i) <= ph1(i, icb1(i)) or icb1(i) == 2)) or iflag1(i) /= |
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! 0} |
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end SUBROUTINE cv30_feed |
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end module cv30_feed_m |
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