| Autor: |
Zimnoch, Miroslaw, Florkowski, Tadeusz, Necki, Jaroslaw M., Neubert, Rolf E. M. |
| Předmět: |
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| Zdroj: |
Isotopes in Environmental & Health Studies; Jun2004, Vol. 40 Issue 2, p129-143, 15p, 2 Charts, 6 Graphs, 1 Map |
| Abstrakt: |
This article presents the results of measurements of the isotopic composition and concentration of atmospheric carbon dioxide, performed on air samples from Kraków (Southern Poland) in different seasons of the year. A simple isotope mass balance model has been applied to determine the contributions of different sources of CO 2 to the urban atmosphere of Kraków city: the latitudinal/regional background, biospheric contributions and anthropogenic emissions. The calculations show that during the summer and early autumn the dominant contribution to local CO 2 peaks is the biosphere, making up to 20% of atmospheric CO 2 during the nocturnal temperature inversion in the lower troposphere. During early spring and winter, anthropogenic emissions are the main local source. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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