NREL UPWelling Short Wave Test
This is special test of upwelling short wave irradiance developed by NREL for the ARM Program. Required fields are as follows:
| Upwelling Short Wave Irradiance (SWup) | TF1 |
| Downwelling Short Wave Irradiance (SWdn) | TF2 |
| Solar zenith angle | Zenith |
| SWup / extra-terrestrial irradiance on a horizontal surface (ETR) | KU |
| Normally expected value of: SWdn / ETR | Ktmax |
| SWup / SWdn | Albedo |
Test Flags are set as follows:
| Case | TF1 Flag | TF1 Value | Zenith | TF2 Value | TF2 Flag | Albedo | Month | KU |
|---|---|---|---|---|---|---|---|---|
| 1 | 01 | -3<V<10 | > 90 | - | - | - | - | - |
| 2 | 01 | - | 80<Z<90 | - | - | - | - | 0≤KU≤0.85*Ktmax |
| 3 | 01 | - | < 80 | > 0 | > 03 | 0.1<A<0.4 | 4≤M≤10 | - |
| 4 | 01 | - | < 80 | > 0 | > 03 | 0.1<A<0.9 | <4 or >10 | - |
| 5 | 31 | - | < 80 | = 0 | - | - | - | - |
| 6 | 02 | - | < 80 | > 0 | 00<F<04 | 0.1<A<0.9 | <4 or >10 | - |
| 7 | 02 | - | < 80 | > 0 | 00<F<04 | 0.1<A<0.4 | 4≤M≤10 | - |
| 8 | 07 | < -3 | > 90 | - | - | - | - | - |
| 9 | 07 | - | 80<Z<90 | - | - | - | - | < 0 |
| 10 | 07 | - | < 80 | > 0 | - | < 0.1 | - | - |
| 11 | 08 | - | < 80 | > 0 | - | > 0.9 | <4 or >10 | - |
| 12 | 08 | > 10 | > 90 | - | - | - | - | - |
| 13 | 08 | - | 80<Z<90 | - | - | - | - | > 0.85*Ktmax |
| 14 | 08 | - | < 80 | > 0 | - | > 0.4 | 4≤M≤10 | - |
| 15 | 31 | - | < 80 | - | 99 | - | - | - |
| 16 | 99 | missing | - | - | - | - | - | - |