Table 3.
Vertical illuminance values (lx); sensor facing south 1.50 m above floor level.
| Grid point ID | Hour | On-site measurements | Simulations results | |||
|---|---|---|---|---|---|---|
| PIT Climate-based sky | RFA Climate-based sky | PIT CIE Clear sky | PIT CIE Overcast sky | |||
| 0 | 10:23 | 146 | 6690 | 10,613 | 3432 | 583 |
| 1 | 10:24 | 207 | 5467 | 7277 | 3122 | 403 |
| 2 | 10:25 | 188 | 4324 | 5374 | 2796 | 273 |
| 3 | 10:26 | 213 | 3494 | 4402 | 2585 | 200 |
| 4 | 10:26 | 304 | 3021 | 4003 | 2102 | 191 |
| 5 | 10:26 | 378 | 51,589 | 55,561 | 55,387 | 1198 |
| 6 | 10:23 | 207 | 4774 | 5062 | 3512 | 303 |
| 7 | 10:24 | 306 | 53,412 | 55,578 | 56,565 | 1333 |
| 8 | 10:25 | 186 | 5592 | 5837 | 4063 | 370 |
| 9 | 10:27 | 572 | 50,682 | 50,418 | 54,980 | 1126 |
| 10 | 10:23 | 293 | 50,070 | 49,093 | 54,614 | 1200 |
| 11 | 10:24 | 270 | 53,702 | 52,120 | 56,207 | 1501 |
| 12 | 10:28 | 1041 | 9944 | 5921 | 5393 | 810 |
| 13 | 10:23 | 49 | 9889 | 9553 | 5253 | 861 |
| 14 | 10:28 | 1412 | 49,932 | 48,696 | 54,935 | 950 |
| 15 | 10:47 | 2253 | 7370 | 8233 | 4729 | 529 |
| 16 | 10:47 | 1718 | 8295 | 8840 | 4978 | 597 |
| 17 | 10:48 | 2289 | 5690 | 6515 | 4090 | 381 |
| 18 | 10:48 | 2117 | 6543 | 7368 | 4489 | 450 |
| 19 | 10:48 | 2195 | 51,112 | 46,082 | 55,087 | 1440 |
| 20 | 10:49 | 2406 | 53,992 | 55,703 | 56,299 | 1535 |
| 21 | 10:51 | 1606 | 2052 | 1868 | 1211 | 308 |
| 22 | 10:51 | 2137 | 5352 | 5634 | 3442 | 403 |
| 23 | 10:52 | 1714 | 6304 | 6547 | 4111 | 437 |
| 24 | 10:52 | 1985 | 6751 | 6941 | 4495 | 478 |
| 25 | 10:52 | 1928 | 6766 | 7084 | 4409 | 452 |
| 26 | 10:53 | 1772 | 6977 | 7390 | 4506 | 475 |
| 27 | 10:53 | 1983 | 3031 | 3229 | 1522 | 595 |
| 28 | 10:53 | 1530 | 7321 | 9544 | 4086 | 527 |
| 29 | 10:53 | 1961 | 8374 | 8718 | 4666 | 602 |
| 30 | 10:54 | 1655 | 8786 | 9968 | 4974 | 653 |
| 31 | 11:34 | 1858 | 1629 | 1591 | 921 | 306 |
| 32 | 11:35 | 1989 | 48,169 | 44,638 | 53,838 | 794 |
| 33 | 11:35 | 1573 | 49,285 | 47,050 | 54,070 | 948 |
| 34 | 11:35 | 1971 | 551 | 566 | 375 | 103 |
| 35 | 11:36 | 1525 | 50,881 | 52,875 | 54,592 | 1260 |
| 36 | 11:36 | 1940 | 53,174 | 51,928 | 55,532 | 1559 |
| 37 | 11:36 | 1415 | 10,228 | 10,298 | 4780 | 1228 |
| 38 | 11:36 | 1811 | 53,273 | 52,044 | 55,536 | 1523 |
| 39 | 11:39 | 467 | 49,627 | 51,386 | 54,101 | 1321 |
| 40 | 11:40 | 235 | 52,998 | 53,999 | 55,284 | 1462 |
| 41 | 11:40 | 161 | 52,866 | 52,464 | 55,095 | 1462 |
| 42 | 11:40 | 119 | 51,012 | 51,325 | 54,573 | 1283 |
| 43 | 11:40 | 110 | 53,509 | 52,391 | 55,590 | 1552 |
| 44 | 11:39 | 581 | 9224 | 3664 | 4219 | 1215 |
| 45 | 11:41 | 162 | 53,285 | 54,623 | 55,662 | 1543 |
| 46 | 11:39 | 942 | 51,082 | 51,182 | 54,772 | 1359 |
| 47 | 11:41 | 203 | 52,774 | 54,094 | 55,294 | 1417 |
| 48 | 11:38 | 1127 | 53,248 | 53,128 | 55,612 | 1527 |
| 49 | 11:38 | 337 | 50,368 | 55,788 | 54,456 | 1219 |
| 50 | 11:38 | 1527 | 53,512 | 56,063 | 55,870 | 1562 |
| 51 | 11:42 | 484 | 9885 | 10,459 | 4884 | 1261 |
| 52 | 11:43 | 411 | 53,441 | 56,871 | 55,913 | 1513 |
| 53 | 11:43 | 673 | 52,404 | 52,554 | 55,268 | 1406 |
| 54 | 11:42 | 286 | 52,467 | 52,383 | 55,566 | 1358 |
| 55 | 11:43 | 427 | 53,591 | 52,994 | 55,967 | 1550 |
| 56 | 11:42 | 225 | 49,300 | 52,176 | 54,270 | 1240 |
| 57 | 11:44 | 284 | 53,995 | 57,583 | 56,186 | 1567 |
| Average illuminance [lx] | 1032 | 29,881 | 30,264 | 30,349 | 960 | |
| MD [%] | / | +28.0 | +28.3 | +28.4 | +0.07 | |