Notes (below) |
Date |
Date |
SN |
CF |
||
| PSP | Global Horizontal | W/m2 | 03/08/2007 | - | 23214F3 | 110.74 W/m2/mV |
| Total Hemispheric shortwave irradiance as measured by an Eppley Laboratory, Inc. Model PSP (Precision Spectral Pyranometer) with calibration factor traceable to the World Radiometric Reference (WRR). | ||||||
| (calc) | Direct Normal (calculated) | W/m2 | 03/08/2007 | - | ||
| Direct (Beam) shortwave irradiance is calculated using the formula: Global = Direct * Cosine(Zenith) + Corrected Diffuse. Note: Direct is set to zero when the Zenith >= 88.5. | ||||||
| PSP | Diffuse Horizontal | W/m2 | 03/08/2007 | - | 23224F3 | 117.96 W/m2/mV |
| Diffuse (Sky) shortwave irradiance measured by a PSP mounted under a manually-adjusted shadow band. Due to the presense of the shadow band a 10% to 18% increase is needed, depending on solar declination for the day of data. Both the corrected and un-corrected diffuse data are provided. | ||||||
| CR510-T | CR510 Temperature | oC | 03/08/2007 | - | ||
| CR510 data logger panel temperature. | ||||||
| CR510-B | CR510 Battery Voltage | oC | 03/08/2007 | - | ||
| CR510 data logger battery voltage. | ||||||
| (calc) | Zenith Angle | o | 03/08/2007 | - | ||
| Solar zenith angle (refracted). Calculated after datacollection (outside the datalogger) using the Solar Position Algorithm (SPA) and added to the datastream. | ||||||
| (calc) | Azimuth Angle | o | 03/08/2007 | - | ||
| Solar azimuth angle. Calculated after datacollection (outside the datalogger) using the Solar Position Algorithm (SPA) and added to the datastream. | ||||||
| (calc) | Airmass | - | 03/08/2007 | - | ||
| Relative optical airmass (not pressure corrected). Calculated after datacollection (outside the datalogger) using the Solar Position Algorithm (SPA) and added to the datastream. | ||||||
Notes:
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