dc.identifier.uri |
http://dx.doi.org/10.15488/4832 |
|
dc.identifier.uri |
https://www.repo.uni-hannover.de/handle/123456789/4875 |
|
dc.contributor.author |
Seckmeyer, Gunther
|
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dc.contributor.author |
Mustert, Christopher
|
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dc.contributor.author |
Schrempf, Michael
|
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dc.contributor.author |
Liley, Ben
|
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dc.contributor.author |
Kotkamp, Michael
|
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dc.contributor.author |
Bais, Alkiviadis
|
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dc.contributor.author |
Gillotay, Didier
|
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dc.contributor.author |
Slaper, Harry
|
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dc.contributor.author |
Siani, Anna-Maria
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dc.contributor.author |
Smedley, Andrew
|
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dc.contributor.author |
Webb, Ann
|
|
dc.contributor.author |
McKenzie, Richard
|
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dc.date.accessioned |
2019-05-21T10:57:55Z |
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dc.date.available |
2019-05-21T10:57:55Z |
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dc.date.issued |
2018 |
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dc.identifier.citation |
Seckmeyer, G. et al.: Why is it so hard to gain enough Vitamin D by solar exposure in the European winter? In: Meteorologische Zeitschrift 27 (2018), Nr. 3, S. 223-233. DOI: https://doi.org/10.1127/metz/2018/0855 |
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dc.description.abstract |
UV exposure, which is the main source for a sufficient level of vitamin D in the human body, is found to be up to a factor of 7 lower in Northern Germany (52° N) in the winter months compared to UV levels in thecentral region of New Zealand’s South Island (45° S). When corrected for the influence of solar zenith angle, the vitamin D-weighted exposure is still a factor of 2 higher in the southern hemisphere at the corresponding latitude. The major part of the difference can be attributed to differences in cloudiness, and a minor part to total ozone and aerosols. Data from several stations in Europe show a high variability due to cloudiness differences between the stations and between different years, but they also show that the differences are not restricted to individual sites and may characterize a northern versus southern hemisphere contrast. Wintertime erythemally-weighted irradiance is also found to be much higher in New Zealand than in Europe. Whereas on a monthly average clouds weaken the UV irradiation by up to 25% for most locations in New Zealand, the reduction is usually up to 50% in central Europe in winter. |
eng |
dc.language.iso |
eng |
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dc.publisher |
Stuttgart : Bornträger |
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dc.relation.ispartofseries |
Meteorologische Zeitschrift 27 (2018), Nr. 3 |
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dc.rights |
CC BY-NC-SA 3.0 Unported |
|
dc.rights.uri |
https://creativecommons.org/licenses/by-nc-sa/3.0/ |
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dc.subject |
Vitamin D |
eng |
dc.subject |
Erythema |
eng |
dc.subject |
Hemispherical UV Differences |
eng |
dc.subject |
Exposure model |
eng |
dc.subject.ddc |
500 | Naturwissenschaften
|
ger |
dc.title |
Why is it so hard to gain enough Vitamin D by solar exposure in the European winter? |
eng |
dc.type |
Article |
|
dc.type |
Text |
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dc.relation.essn |
1610-1227 |
|
dc.relation.issn |
0941-2948 |
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dc.relation.doi |
10.1127/metz/2018/0855 |
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dc.bibliographicCitation.issue |
3 |
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dc.bibliographicCitation.volume |
27 |
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dc.bibliographicCitation.firstPage |
223 |
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dc.bibliographicCitation.lastPage |
233 |
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dc.description.version |
publishedVersion |
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tib.accessRights |
frei zug�nglich |
|