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Author Wuchterl, G.; Reithofer, M.
Title Licht über Wien VII Type Journal Article
Year 2020 Publication Abbreviated Journal (up)
Volume Issue Pages
Keywords Skyglow; Energy
Abstract 231. Auf einen BlickDie Helligkeit des Wiener Nachthimmels hat sich stabilisiert. 2019 ist das zweite Jahr in Folge, in dem die Energie desLichts über Wien um weniger als 5 % zugenommen hat. Die Menge des künstlichen Lichts über Wien hat sich nach dem steilem Anstieg der Jahre 2009 bis 2014 auf hohem Niveau eingependelt..Es besteht ein enger Zusammenhang zwischen Licht- und Luftverschmutzung. Über 10 Jahre bestehende Korrelationen von Lichtimmissions- und Luftgüteindikatoren bestätigen dies. Auf dieser Erkenntnis beruht eine auf standardisierte Luft-güte-Bedingungen normierte Angabe der Globalstrahlung, mit der direkter auf die von der Stadt eingebrachten Lichtmenge geschlossen werden kann.Der Kunstlichthalo über Wien wurde mit einer neuen Methode vollständiger berechnet und enthält demnach deutlich mehr Energie als bisher angenommen. 500 Gigawattstunden und 100.000 Tonnen CO2-Äquivalent pro Jahr müssen als typischer Wert für eine Untergrenze angenommen werden.
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Corporate Author Thesis
Publisher Verein Kuffner-Sternwarte Place of Publication Vienna Editor
Language German Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number GFZ @ kyba @ Serial 3033
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Author Shillo, R., & Halevy, A. H.
Title Interaction of photoperiod and temperature in flowering-control of Gypsophila paniculata L Type Journal Article
Year 1982 Publication Scientia Horticulturae Abbreviated Journal (up)
Volume 16 Issue 4 Pages 385-393
Keywords Plants
Abstract Long day promotes flowering of Gysophila paniculata L cultivar ‘Bristol Fairy’. Repeated treatments with GA3 or GA4 + 7 in short days did not promote flowering. The long photoperiod is effective only at relatively high temperatures. At night temperatures below 12°C, the plants remain vegetative even in long days. Efficient artificial lighting is from incandescent lamps at 60–100 lux. Fluorescent lighting (Cool-White) is not effective. Lighting of 4 hours as a night-break or at the end of the night were equally effective, but 4 hours lighting as a day-extension was less effective. Whole-night lighting promoted flowering more than any of the 4-hour lighting regimes. Cyclic lighting of one third light in each cycle promoted flowering to the same extent as continuous lighting. Light intensity during the day has a decisive effect on flower production.
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Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number IDA @ intern @ Serial 2370
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Author Tinus, R. W.
Title Effects of Extended Photoperiod on Southern Rocky Mountain Engelmann Spruce and Douglas-fir Type Journal Article
Year 1981 Publication Tree Planters' Notes Abbreviated Journal (up)
Volume 32 Issue 4 Pages
Keywords Plants
Abstract Four sources of Engelmann spruce and two of Douglas-fir were grown under eight different extended photoperiod regimes. Incandescent light 1 minute of every 15 at night at 270 lux was more effective than continuous incandescent at 1200 lux or intermittent fluorescent at 950 lux at preventing bud dormancy and maintaining continuous height growth.
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Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
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ISSN ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number IDA @ intern @ Serial 2368
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Author Lawrence, B.K.; Fehr, W.R.
Title Reproductive Response of Soybeans to Night Interruption1 Type Journal Article
Year 1981 Publication Crop Science Abbreviated Journal (up)
Volume 21 Issue 5 Pages 755
Keywords Plants
Abstract Artificial lights may be used to delay flowering of soybean [Glycine max (L.) Merr.] cultivars. Previous research has suggested that night interruption imposed every other night would delay flowering as much as every-night interruption. Our objective was to evaluate the reproductive development of cultivars when exposed to night interruption every night compared with exposure every other night. One cultivar of each Maturity Group 00 through V was grown in the field at Ames, Iowa during 1978 and 1979. The four light treatments imposed every night or every other night included illumination with incandescent light from sunset to sunrise, 2300 to 0030 hours, 0030 to 0200 hours, or 0200 to 0330 hours. Control plots were not exposed to artificial light.

The average number of days that reproductive development was delayed beyond the control was twice as great for the every-night treatments as for the every-other-night treatments. Illumination from sunset to sunrise delayed reproductive development significantly more than the treatments of night interruption for 1.5 hours. Night interruption near the end of the dark period (0200 to 0330 hours) delayed reproductive development more than the earlier interruptions.

The results did not support the hypothesis that light treatments every other night would delay reproductive development as much as every-night interruptions. The lighting regime needed to delay reproductive development will depend on the photoperiod requirements of the cultivars and duration of the delay that is desired.
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Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0011-183X ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number IDA @ intern @ Serial 2367
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Author Zielinska-Dabkowska, K.M.
Title Night in a big city. Light festivals as a creative medium used at night and their impact on the authority, significance and prestige of a city Type Book Chapter
Year 2016 Publication The Role of Cultural Institutions and Events in the Marketing of Cities and Regions Abbreviated Journal (up)
Volume Issue Pages 63–90
Keywords Lighting; Society
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Publisher Wydawnictwo Uniwersytetu Łódzkiego Place of Publication Łódz, Poland Editor Domanski, T.
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number GFZ @ kyba @ Serial 2933
Permanent link to this record