BERNHARD G. UV/SPECT SUMMIT UV 31-JUL-2009 00:00:0031-JUL-2009 24:00:000002 65 1010 Bernhard, Germar Biospherical Instruments Inc, 5340 Riley Street, San Diego, CA 92110, USA. UV spectral irradiance at Summit measured with a SUV-150B spectroradiometer NDACC 1 1 2009 07 31 2010 03 18 0 Day of Year including decimal fraction (DDD.fffff). Noon on 1 January is 1.5. All dates and times are in UT. 6 1 1 1 1 1 1 9.999E+09 9.999E+09 9.999E+09 9.999E+09 9.999E+09 9.999E+09 290-315 nm UVB (W m-2) 315-400 nm UVA (W m-2) Erythemal UV (W m-2), CIE according to McKinlay and Diffey (1987) DNA-weighted UV (W m-2), Bernhard and Seckmeyer (1997) formulation of Setlow (1974) Generalised Plant (W m-2), Green et al. (1974) formulation of Caldwell (1971), normalized to 1 at 300 nm Vitamin D production (W m-2), Bouillon et al. (2006), truncated at 315 nm 16 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 9999 99 99 99999.99999 99 99 99 99 99 99 99 99 99.9 99 9 9 Year (YYYY) All times UT Month (MM) Day of month (DD) Days since 1-January 1900 (= Day 1) and fraction of days (DDDDD.fffff) Hour start spectrum (hh) Minute start spectrum (mm) Hour when radiometer measures at 310 nm (hh) Minute when radiometer measures at 310 nm (mm) Second when radiometer measures at 310 nm (ss) Hour when radiometer measures at 360 nm (hh) Minute when radiometer measures at 360 nm (mm) Second when radiometer measures at 360 nm (ss) Solar zenith angle when radiometer measures at 310 nm (degree) Data volume Sky condition (0 = undetermined, 1 = clearsky) Quality flag (0 = no problem, 1 = problem; see comment below) 0 26 Spectrally weighted irradiance measured at the surface. Full-resolution spectral data measured between 280 and 600 nm are available at http://www.biospherical.com/NSF Location: Summit; Latitude: 72.58N; Longitude: 38.45W; Elevation: 3202m Contact: e-mail: bernhard(at)biospherical.com, ph: +1 619 686 1888 References A complete list of references is available at http://www.biospherical.com/nsf/references.asp Overview: Bernhard, G., C. R. Booth, J. C. Ehramjian, and V. V. Quang (2008), NSF Polar Programs UV Spectroradiometer Network 2006-2007 Operations Report Volume 16.0, Biospherical Instruments Inc., San Diego, available at http://www.biospherical.com/NSF. Bernhard, G., C. R. Booth, and J. C. Ehramjian (2010), Climatology of ultraviolet radiation at high latitudes derived from measurements of the National Science Foundation's Ultraviolet Spectral Irradiance Monitoring Network, in: UV radiation in global climate change: measurements, modeling and effects on ecosystems, edited by W. Gao, D. L. Schmoldt, and J. R. Slusser, 544 pp., Tsinghua University Press, Beijing and Springer, New York, ISBN 978-3-642-03312-4. Data reduction: Bernhard, G., C. R. Booth, and J. C. Ehramjian (2004), Version 2 data of the National Science Foundation's Ultraviolet Radiation Monitoring Network: South Pole, J. Geophys. Res., 109, D21207, doi:10.1029/2004JD004937. Specific to data of Summit: Bernhard, G., C. R. Booth, and J. C. Ehramjian (2008), Comparison of UV irradiance measurements at Summit, Greenland; Barrow, Alaska; and South Pole, Antarctica, Atmos. Chem. Phys., 8, 4799-4810. Comparison with NDACC instruments: Wuttke S., G. Seckmeyer, G. Bernhard, J. Ehramjian, R. McKenzie, P. Johnston, and M. O'Neil (2006), New spectroradiometers complying with the NDSC standards, J. Atmos. Ocean. Tech., 23(2), 241-251. DECDAY < Date > SZA Vol Sky Flag UVB UVA UVEry UVDNA UVPlant UVVitD (all in Wm-2) ********************************************************************************* 212.59007 2009 07 31 40025.59007 14 09 14 13 52 14 17 23 54.6 19 0 0 9.138e-01 4.536e+01 1.160e-01 4.606e-02 1.291e-01 1.809e-01 212.78127 2009 07 31 40025.78127 18 45 18 49 11 18 52 36 64.6 19 0 0 4.358e-01 3.018e+01 5.812e-02 1.715e-02 4.919e-02 7.315e-02 212.79168 2009 07 31 40025.79168 19 00 19 04 12 19 07 37 65.7 19 0 0 3.912e-01 2.853e+01 5.291e-02 1.505e-02 4.297e-02 6.439e-02 212.80210 2009 07 31 40025.80210 19 15 19 19 12 19 22 38 66.8 19 0 0 3.480e-01 2.668e+01 4.775e-02 1.305e-02 3.708e-02 5.606e-02 212.81253 2009 07 31 40025.81253 19 30 19 34 12 19 37 39 67.9 19 0 0 3.047e-01 2.455e+01 4.254e-02 1.119e-02 3.150e-02 4.807e-02 212.82293 2009 07 31 40025.82293 19 45 19 49 11 19 52 38 69.0 19 0 0 2.701e-01 2.401e+01 3.883e-02 9.742e-03 2.713e-02 4.175e-02 212.83335 2009 07 31 40025.83335 20 00 20 04 12 20 07 39 70.1 19 0 0 2.264e-01 2.076e+01 3.303e-02 8.023e-03 2.205e-02 3.426e-02 212.84377 2009 07 31 40025.84377 20 15 20 19 11 20 22 37 71.2 19 0 0 1.884e-01 1.775e+01 2.799e-02 6.561e-03 1.778e-02 2.789e-02 212.85418 2009 07 31 40025.85418 20 30 20 34 10 20 37 35 72.3 19 0 0 1.577e-01 1.581e+01 2.410e-02 5.440e-03 1.446e-02 2.289e-02 212.86460 2009 07 31 40025.86460 20 45 20 49 11 20 52 38 73.5 19 0 0 1.352e-01 1.476e+01 2.143e-02 4.593e-03 1.194e-02 1.914e-02 212.87503 2009 07 31 40025.87503 21 00 21 04 12 21 07 39 74.6 19 0 0 1.134e-01 1.305e+01 1.853e-02 3.871e-03 9.751e-03 1.577e-02 212.88543 2009 07 31 40025.88543 21 15 21 19 10 21 22 35 75.7 19 0 0 9.499e-02 1.213e+01 1.628e-02 3.218e-03 7.931e-03 1.296e-02 212.89585 2009 07 31 40025.89585 21 30 21 34 12 21 37 36 76.7 19 0 0 7.910e-02 1.108e+01 1.424e-02 2.726e-03 6.438e-03 1.061e-02 212.90627 2009 07 31 40025.90627 21 45 21 49 12 21 52 40 77.8 19 0 0 6.530e-02 1.028e+01 1.247e-02 2.253e-03 5.207e-03 8.647e-03 212.91668 2009 07 31 40025.91668 22 00 22 04 11 22 07 36 78.8 19 0 0 5.213e-02 8.776e+00 1.039e-02 1.832e-03 4.096e-03 6.834e-03 212.92710 2009 07 31 40025.92710 22 15 22 19 12 22 22 40 79.8 19 0 0 4.215e-02 7.907e+00 8.900e-03 1.569e-03 3.312e-03 5.528e-03 212.93752 2009 07 31 40025.93752 22 30 22 34 11 22 37 35 80.8 19 0 0 3.393e-02 6.887e+00 7.549e-03 1.260e-03 2.648e-03 4.435e-03 212.94793 2009 07 31 40025.94793 22 45 22 49 10 22 52 36 81.7 19 0 0 2.690e-02 5.947e+00 6.326e-03 1.050e-03 2.136e-03 3.551e-03 212.96877 2009 07 31 40025.96877 23 15 23 19 11 23 22 36 83.5 19 0 0 1.718e-02 4.443e+00 4.468e-03 7.366e-04 1.420e-03 2.331e-03 212.97917 2009 07 31 40025.97917 23 30 23 34 08 23 37 32 84.3 19 0 0 1.384e-02 3.818e+00 3.747e-03 5.892e-04 1.172e-03 1.908e-03 212.98960 2009 07 31 40025.98960 23 45 23 49 11 23 52 38 85.0 19 0 0 1.122e-02 3.272e+00 3.151e-03 4.995e-04 9.909e-04 1.585e-03