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International Polar Year 2007–2008 - WMO

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Top left -<br />

Fig. 3.4-3: Screen shot<br />

of media day page.<br />

Top right -<br />

Fig. 3.4-4: Screen shot<br />

of CADIS web site<br />

main page.<br />

Bottom left -<br />

Fig. 3.4-5: IASOA<br />

home page.<br />

Bottom right -<br />

Fig. 3.4-6: Summit,<br />

Greenland site page.<br />

Fig. 3.4-7: Screen shot<br />

of Observatories-at-a-<br />

Glance page.<br />

394<br />

IPY 20 07–20 08<br />

continuous measurement of trace halocarbon and<br />

chlorofluorocarbons gas concentrations.<br />

• A CO 2 and NOx flux facility went online in summer<br />

2008. The flux facility was built underground and<br />

covered with snow, with only the flux tower exposed.<br />

• The new Temporary Atmospheric Watch Observatory<br />

was constructed.<br />

Cherskii, Russian Federation (69º N, 161º E)<br />

• A collaboration between the University of<br />

Alaska Fairbanks (UAF) and NOAA has resulted<br />

in tower measurements of CO 2 and CH 4 . The<br />

CH 4 measurements will be combined with new<br />

modeling methods developed at NOAA to infer<br />

regional-scale CH 4 fluxes. These estimates will<br />

complement CH 4 fluxes determined by UAF using<br />

a flux gradient method. This work is timely and<br />

important due to the large carbon stores, mostly<br />

CH 4 , that could be released from permafrost regions

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