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113 | Werner | 2 | #include "global.h" |
3 | #include "production3pg.h" |
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4 | |||
5 | #include "ressourceunit.h" |
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6 | #include "species.h" |
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7 | |||
8 | Production3PG::Production3PG() |
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9 | { |
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10 | } |
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11 | |||
12 | // fake: monthly radiation (sum month MJ/m2) |
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13 | const double radMonth[] = {30., 80., 200., 350., 450., 500., 550., 400., 300., 150., 100.,30. }; |
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14 | // fake: aggregated response values per month |
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133 | Werner | 15 | const double totalResponses[] = {0., 0.05, 0.4, 0.6, 0.8, 0.8, 0.8, 0.5, 0.5, 0.1, 0. ,0. }; |
113 | Werner | 16 | const double radYear = 3140.; // the sum of radMonth [MJ/m2] |
17 | |||
115 | Werner | 18 | double Production3PG::calculate() |
113 | Werner | 19 | { |
20 | double month_gpp[12]; |
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21 | double year_raw_gpp = 0.; |
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22 | for (int i=0;i<12;i++) { |
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23 | month_gpp[i] = radMonth[i] * 0.5 * totalResponses[i]; |
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24 | year_raw_gpp += month_gpp[i]; |
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25 | } |
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115 | Werner | 26 | // calculate harshness factor |
133 | Werner | 27 | mHarshness = 0.2; // fake |
113 | Werner | 28 | // PARutilized - fraction:.... to GPP: |
29 | // year GPP/rad: gC / (yearly MJ/m2) |
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115 | Werner | 30 | mGPPperRad = year_raw_gpp / radYear; |
31 | |||
32 | return mGPPperRad; |
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113 | Werner | 33 | } |