Details
| Titel in Übersetzung | Impact of Shadowing on the Vitamin D Weighted Exposure of a Human |
|---|---|
| Originalsprache | Deutsch |
| Seiten (von - bis) | 204-209 |
| Seitenumfang | 6 |
| Fachzeitschrift | Akt Dermatol |
| Jahrgang | 44 |
| Ausgabenummer | 5 |
| Publikationsstatus | Veröffentlicht - 29 Aug. 2017 |
Abstract
The vitamin D 3 weighted UV exposure of a human with vertical posture was calculated for specific urban locations to investigate the impact of shadowing by buildings or vegetation on the exposure. The exposure is calculated by taking into account the radiance, i.e. the radiant energy from direct solar radiation and diffuse sky radiation from different incident and azimuth angles and the 3D geometry of a human model. Obstructions shading the sky radiance are derived in high spatial resolution from hemispherical images, taken by a digital camera with a fisheye lens. The radiance from shaded sky regions is neglected in the UV. The derived shadowing information is used as input in the exposure model. The vitamin D 3 weighted UV exposure on a street within a city on December 21 at noon is approximately 50% and on March 21 at noon 70% of the exposure compared to an unobstructed location.
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in: Akt Dermatol, Jahrgang 44, Nr. 5, 29.08.2017, S. 204-209.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Einfluss der Verschattung auf die Vitamin-D-gewichtete UV-Exposition eines Menschen
AU - Schrempf, Michael
AU - Thuns, Nadine
AU - Lange, K
AU - Seckmeyer, Gunther
N1 - Publisher Copyright: © Georg Thieme Verlag KG Stuttgart.New York.
PY - 2017/8/29
Y1 - 2017/8/29
N2 - The vitamin D 3 weighted UV exposure of a human with vertical posture was calculated for specific urban locations to investigate the impact of shadowing by buildings or vegetation on the exposure. The exposure is calculated by taking into account the radiance, i.e. the radiant energy from direct solar radiation and diffuse sky radiation from different incident and azimuth angles and the 3D geometry of a human model. Obstructions shading the sky radiance are derived in high spatial resolution from hemispherical images, taken by a digital camera with a fisheye lens. The radiance from shaded sky regions is neglected in the UV. The derived shadowing information is used as input in the exposure model. The vitamin D 3 weighted UV exposure on a street within a city on December 21 at noon is approximately 50% and on March 21 at noon 70% of the exposure compared to an unobstructed location.
AB - The vitamin D 3 weighted UV exposure of a human with vertical posture was calculated for specific urban locations to investigate the impact of shadowing by buildings or vegetation on the exposure. The exposure is calculated by taking into account the radiance, i.e. the radiant energy from direct solar radiation and diffuse sky radiation from different incident and azimuth angles and the 3D geometry of a human model. Obstructions shading the sky radiance are derived in high spatial resolution from hemispherical images, taken by a digital camera with a fisheye lens. The radiance from shaded sky regions is neglected in the UV. The derived shadowing information is used as input in the exposure model. The vitamin D 3 weighted UV exposure on a street within a city on December 21 at noon is approximately 50% and on March 21 at noon 70% of the exposure compared to an unobstructed location.
UR - http://www.scopus.com/inward/record.url?scp=85028541960&partnerID=8YFLogxK
U2 - 10.1055/s-0043-105258
DO - 10.1055/s-0043-105258
M3 - Artikel
VL - 44
SP - 204
EP - 209
JO - Akt Dermatol
JF - Akt Dermatol
SN - 0340-2541
IS - 5
ER -