12 Spatio-Temporal Monitoring and Modelling …
75
QUESTIONER: Heinke Schlünzen
QUESTION: How do you determine the total number of pollen emitted per catkin
(tree) ahead of the year, since the total number is quite different between different
years?
ANSWER: In this study we only simulated 2008. We are working on a new methodology to estimate these inter-seasonal variations among different successive years.
For now, a fixed potential flux value is set as default.
Acknowledgements This research was partly funded by the Belgian Science Policy Office (BELSPO) in the frame of the Belgian Research Action through Interdisciplinary Networks Brain
(BRAIN.be) programme—project RespirIT (BR/154/A1/RespirIT) and partly funded by the Royal
Meteorological Institute of Belgium. We acknowledge the discussions with the other members of
the RespirIT.
References
1. S. Dujardin, C. Linard, N. Dendoncker, Research note on mapping allergenic tree species in Belgium. BR/154/A1/RespirIT, Belgian research action through interdisciplinary networks (2017)
2. G.E. Hemery, P.S. Savill, S.N. Pryor, Applications of the crown diameter–stem diameter relationship for different species of broadleaved trees. For. Ecol. Manag. 215, 285–294 (2005)
3. P.J. Landrigan et al., The Lancet Commission on pollution and health (2017). http://dx.doi.org/
10.1016/S0140-6736(17)32345-0. Accessed 19 Oct 2017
4. T. Linkosalo, H. Ranta, A. Oksanen, P. Siljamo, A. Luomajoki, J. Kukkonen, M. Sofiev, A doublethreshold temperature sum model for predicting the flowering duration and relative intensity of
Betula pendula and B. pubescens. Agric. For. Meteorol. 150(12), 6–11 (2010). https://doi.org/
10.1016/j.agrformet.2010.08.007
5. M. Sofiev, P. Siljamo, H. Ranta, A. Rantio-Lehtimäki, Towards numerical forecasting of longrange air transport of birch pollen: theoretical considerations and a feasibility study. Int. J.
Biometeorol. 50, 392–402 (2006). https://doi.org/10.1007/s00484-006-0027-x
6. M. Sofiev, P. Siljamo, H. Ranta, T. Linkosalo, S. Jaeger, A. Rasmussen, A. Rantio-Lehtimaki,
E. Severova, J. Kukkonen, A numerical model of birch pollen emission and dispersion in the
atmosphere. Description of the emission module. Int. J. Biometeorol. 2013(57), 45–58 (2013).
https://doi.org/10.1007/s00484-012-0532-z
75
QUESTIONER: Heinke Schlünzen
QUESTION: How do you determine the total number of pollen emitted per catkin
(tree) ahead of the year, since the total number is quite different between different
years?
ANSWER: In this study we only simulated 2008. We are working on a new methodology to estimate these inter-seasonal variations among different successive years.
For now, a fixed potential flux value is set as default.
Acknowledgements This research was partly funded by the Belgian Science Policy Office (BELSPO) in the frame of the Belgian Research Action through Interdisciplinary Networks Brain
(BRAIN.be) programme—project RespirIT (BR/154/A1/RespirIT) and partly funded by the Royal
Meteorological Institute of Belgium. We acknowledge the discussions with the other members of
the RespirIT.
References
1. S. Dujardin, C. Linard, N. Dendoncker, Research note on mapping allergenic tree species in Belgium. BR/154/A1/RespirIT, Belgian research action through interdisciplinary networks (2017)
2. G.E. Hemery, P.S. Savill, S.N. Pryor, Applications of the crown diameter–stem diameter relationship for different species of broadleaved trees. For. Ecol. Manag. 215, 285–294 (2005)
3. P.J. Landrigan et al., The Lancet Commission on pollution and health (2017). http://dx.doi.org/
10.1016/S0140-6736(17)32345-0. Accessed 19 Oct 2017
4. T. Linkosalo, H. Ranta, A. Oksanen, P. Siljamo, A. Luomajoki, J. Kukkonen, M. Sofiev, A doublethreshold temperature sum model for predicting the flowering duration and relative intensity of
Betula pendula and B. pubescens. Agric. For. Meteorol. 150(12), 6–11 (2010). https://doi.org/
10.1016/j.agrformet.2010.08.007
5. M. Sofiev, P. Siljamo, H. Ranta, A. Rantio-Lehtimäki, Towards numerical forecasting of longrange air transport of birch pollen: theoretical considerations and a feasibility study. Int. J.
Biometeorol. 50, 392–402 (2006). https://doi.org/10.1007/s00484-006-0027-x
6. M. Sofiev, P. Siljamo, H. Ranta, T. Linkosalo, S. Jaeger, A. Rasmussen, A. Rantio-Lehtimaki,
E. Severova, J. Kukkonen, A numerical model of birch pollen emission and dispersion in the
atmosphere. Description of the emission module. Int. J. Biometeorol. 2013(57), 45–58 (2013).
https://doi.org/10.1007/s00484-012-0532-z