Work package P3: Actinic complex for the calculation of the biologically weighted UV exposure of humans

Contact information

Principal investigators: Prof. Dr. Gunther Seckmeyer mail.gif

Staff: Dipl.-Met. Michael Schrempf mail.gif

Institution: Institute of Meteorology and Climatology (, Leibniz Universität Hannover (

Goals of WP-P3

The goal of this subproject is to develop and implement a model for the calculation of the exposure of a human into PALM-4U. This model shall calculate the actual exposure of a human to UV radiation within a city. Therefore the exposure model will take into account the complex geometry of a human including various clothing and the spectral radiation from different directions. Furthermore the model will consider the shading by buildings.

Fig. 1:

Work program

WP-P3.1: Development of exposure model

An exposure module to calculate the actual exposure of humans under various conditions will be developed and implemented in PALM-4U. The module will use the radiation from multiple directions in order to consider the complex radiation field. Furthermore a 3D model of a human is used to take into account the complex geometry of a human. The calculated shading by buildings will give information from which direction the human is not exposed to radiation.

WP-P3.2: Development of exposure model (MAM version) and testing

A Multi Agent Model (MAM) version of the exposure module will be developed. In the MAM version, exposure calculations will be done for individual agents (hypothetical humans) as they are moving through the urban environment. Moreover, after the basic development the exposure modules will be tested for selected weather scenarios.

WP-P3.3: Application and improvement of the exposure model

Randomly selected agents will be used for exposure calculations in democities. Special emphasis will be put on further code optimization to allow fast simultaneous exposure calculations of many agents. Possible deficiencies of the exposure modules will be identified and improved. For calculations of the human exposure to UV radiation for time spans (several minutes to hours), the most relevant situations, locations (e.g. hotspots) and conditions will be identified.

Last modified 11 months ago Last modified on Apr 11, 2017 9:10:55 AM

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