Measurements in different daylight illuminations. The samples that were measured are the reference white (BaSO4), spruce tree (distance from the measuring equipment about 100 meters) and the sky reflected by the mirror. Measuring equipment: PR 713/702 AM spectroradiometer Wavelength interval: 390 nm - 1070 nm Wavelength resolution: 4 nm File formats: ASCII (daylight.asc.tgz) and MATLAB (daylight.mat.tgz). In the ASCII files each row is one spectrum and in the MATLAB files the spectra are stored in column order. Measurers: Jussi Parkkinen and Pertti Silfsten (LTKK) References: - Files: BaSO4.asc BaSO4.mat Sample: BaSO4 SAMPLE DATE TIME (EET) NOTES 1 30.3.1995 13:30 cloudles sky 2 . 19:30 cloudles sky, just before sunset 3 31.3.1995 13:30 cloudles sky, bright snow 4 . 19:30 cloudles sky 5 1.4.1995 13:31 half cloudy, the sun was behind a cloud 6 2.4.1995 13:30 half cloudy, the sun was shining between clouds 7 3.4.1995 13:30 half cloudy, the sun was shining between clouds (measuring point blue) 8 3.4.1995 19:13 cloudles sky, sunset 9 9.4.1995 14:09 cloudy sky, snowing little 10 10.4.1995 13:31 cloudy, gray sky 11 12.4.1995 13:30 cloydy, gray sky 12 11.5.1995 14:48 cloudles sky 13 15.5.1995 18:45 cloudy sky, beginning to brighten up 14 16.5.1995 20.29 cloudles sky, sunset 15 3.4.1995 19:25 measured from snow ############################################################################ Files: sky.asc sky.mat Sample: Sky with the mirror SAMPLE DATE TIME (EET) NOTES 1 30.3.1995 13:30 cloudles sky 2 . 19:30-19:35 cloudles sky, just before sunset 3 . 19:47 cloudles sky, sunset 4 . 19:53 . 5 . 19:58 . 6 . 20:15 . 7 31.3.1995 13:30 cloudles sky, bright snow 8 . 19:30 cloudles sky 9 . 19:47 cloudles sky, sunset 10 . 19:53 . 11 . 19:59 . 12 . 20:15 . 13 . 20:18 . 14 1.4.1995 13:31 half cloudy, the sun was behind a cloud 15 2.4.1995 13:30 half cloudy, the sun was shining between clouds 16 3.4.1995 13:30 half cloudy, the sun was shining between clouds (measuring point blue) 17 3.4.1995 19:18 cloudles sky, sunset 18 9.4.1995 14:11 cloudy sky, snowing little 19 10.4.1995 13:31 cloudy, gray sky 20 11.5.1995 14:51 cloudles sky 21 15.5.1995 18:47 cloudy sky, beginning to brighten up 22 16.5.1995 20.31 cloudles sky, sunset ############################################################################ Files: tree.asc tree.mat Sample: tree (spruce) SAMPLE DATE TIME (EET) NOTES 1 30.3.1995 13:30 cloudles sky 2 . 19:35 cloudles sky, just before sunset 3 31.3.1995 13:30 cloudles sky, bright snow 4 . 19:30 cloudles sky 5 1.4.1995 13:31 half cloudy, the sun was behind a cloud 6 2.4.1995 13:30 half cloudy, the sun was shining between clouds 7 3.4.1995 13:33 half cloudy, the sun was shining between clouds (measuring point blue) 8 3.4.1995 19:22 cloudles sky, sunset 9 9.4.1995 14:14 cloudy sky, snowing little 10 10.4.1995 13:32 cloudy, gray sky 11 12.4.1995 13:30 cloydy, gray sky 12 11.5.1995 14:53 cloudles sky 13 15.5.1995 18:49 cloudy sky, beginning to brighten up 14 16.5.1995 20.33 cloudles sky, sunset 15 3.4.1995 13:28 another tree (spruce) illuminated by the evening sun