 |
| Titel |
Spatial and Temporal Variability of CO2 and CH4 Concentrations in the Atmospheric Surface Layer over West Siberia |
| VerfasserIn |
Boris D. Belan, Toshinobu Machida, Motoki Sasakawa, Denis K. Davydov, Alexander V. Fofonov, Oleg A. Krasnov, Shamil Maksyutov, Mikhail Yu. Arshinov |
| Konferenz |
EGU General Assembly 2015
|
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 17 (2015) |
| Datensatznummer |
250105447
|
| Publikation (Nr.) |
 EGU/EGU2015-4971.pdf |
|
|
|
|
|
| Zusammenfassung |
| The investigation of greenhouse gas behavior in the atmosphere plays a key role in predicting
the global changes of Earth’s climate. In this connection, of particular importance is the study
of the distribution of sources/sinks of trace gases in the atmospheric surface layer over
the different regions of the globe. In order to fill a gap in the data on greenhouse
gas concentrations in Russia, National Institute for Environmental Studies (NIES,
Japan) and Institute of Atmospheric Optics (IAO SB RAS, Russia) established a
network for GHG monitoring (JR-STATION, Japan-Russia Siberian Tall Tower Inland
Observation Network). Gas analyzers and meteorological sensors were mounted
at radio relay towers located in different regions of West Siberia. The checking
equipment was placed in containers at the tower base. In the containers, the climatic
parameters optimal for gas analyzer operation were maintained. The work on the network
development started in 2001. Since at each of the sites the measurement duration could be
different, in this paper we present the data of the greenhouse gas monitoring for
eight sites which give the primary idea on the spatial distribution and temporal
dynamics of CO2 and CH4 in the atmospheric surface layer over West Siberia. The
analysis of the data showed that the average increase in concentration of carbon
dioxide by results of our measurements in this territory increases within 1.95 – 2.53
ppm/year, depending on the area. The analysis of long-term data testifies about
existence of growth of concentration of methane within 3.2 – 7.2 ppb / year. The
presence of a distributed network of the sites operating in the monitoring regime
makes it possible not only to investigate the temporal dynamics of CO2 and CH4 at
each site and to determine the spatial differences between the concentrations by
comparing the data, but also to plot the distribution charts for different moments of
time.
This work was supported by the Global Environment Research Account for National
Institutes of the Ministry of the Environment (Japan), the Branch of Geology, Geophysics
and Mining Sciences of RAS (ProgramÂNo. 5); State contracts of the Ministry of
Education and Science of Russia No. 14.604.21.0100, (RFMTFIBBB210290) and No.
14.613.21.0013 (RFMEFI61314X0013); Interdisciplinary integration projects of the
Siberian Branch of the Russian Academy of Science No. 35, No. 70 and No. 131; and
Russian Foundation for Basic Research (grants No. 14-05-00526 and 14-05-00590). |
|
|
|
|
|
|