ANSTO Publications Online >
Journal Publications >
Journal Articles >

Please use this identifier to cite or link to this item: http://apo.ansto.gov.au/dspace/handle/10238/4155

Title: TransCom continuous experiment: comparison of 222Rn transport at hourly time scales at three stations in Germany
Authors: Taguchi, S
Law, RM
Rödenbeck, C
Patra, PK
Maksyutov, S
Zahorowski, W
Sartorious, H
Levin, I
Keywords: Federal republic of germany
RADIUM 222
DECAY
CARBON DIOXIDE
Air transport
Concentration Ratio
Issue Date: 2011
Publisher: Copernicus
Citation: Taguchi, S., Law, R. M., Rödenbeck, C., Patra, P. K., Maksyutov, S., Zahorowski, W., Sartorius, H., and Levin, I., (2011). TransCom continuous experiment: comparison of 222Rn transport at hourly time scales at three stations in Germany. Atmospheric Chemistry and Physics, 11(19), 10071-10084.
Abstract: Fourteen global atmospheric transport models were evaluated by comparing the simulation of 222Rn against measurements at three continental stations in Germany: Heidelberg, Freiburg and Schauinsland. Hourly concentrations simulated by the models using a common 222Rn-flux without temporal variations were investigated for 2002 and 2003. We found that the mean simulated concentrations in Heidelberg are related to the diurnal amplitude of boundary layer height in each model. Summer mean concentrations simulated by individual models were negatively correlated with the seasonal mean of diurnal amplitude of boundary layer height, while in winter the correlation was positive. We also found that the correlations between simulated and measured concentrations at Schauinsland were higher when the simulated concentrations were interpolated to the station altitude in most models. Temporal variations of the mismatch between simulated and measured concentrations suggest that there are significant interannual variations in the 222Rn exhalation rate in this region. We found that the local inversion layer during daytime in summer in Freiburg has a significant effect on 222Rn concentrations. We recommend Freiburg concentrations for validation of models that resolve local stable layers and those at Heidelberg for models without this capability. © 2011, COPERNICUS GESELLSCHAFT MBH
URI: http://dx.doi.org/10.5194/acp-11-10071-2011
http://apo.ansto.gov.au/dspace/handle/10238/4155
ISSN: 1680-7316
Appears in Collections:Journal Articles

Files in This Item:

There are no files associated with this item.

Items in APO are protected by copyright, with all rights reserved, unless otherwise indicated.

 

Valid XHTML 1.0! DSpace Software Copyright © 2002-2010  Duraspace - Feedback