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| 1 | module mom_flux_rain_m |
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| 2 | |
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| 3 | implicit none |
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| 4 | |
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| 5 | contains |
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| 6 | |
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| 7 | elemental real function mom_flux_rain(u, rain) |
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| 8 | |
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| 9 | ! Computes momentum flux due to rainfall, in Pa. |
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| 10 | |
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| 11 | real, intent(in):: U |
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| 12 | ! difference of velocity between air and sea, including gustiness, in m / s |
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| 13 | |
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| 14 | real, intent(in):: rain ! rain mass flux, in kg m-2 s-1 |
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| 15 | |
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| 16 | !------------------------------------------------------------------------ |
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| 17 | |
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| 18 | mom_flux_rain = 0.85 * U * rain |
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| 19 | ! (Caldwell 1971 k1001, equation (1) and 15 % reduction in speed |
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| 20 | ! as in paragraph 3.a, maybe adequate if u is the wind at 10 m) |
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| 21 | |
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| 22 | end function mom_flux_rain |
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| 23 | |
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| 24 | end module mom_flux_rain_m |
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