|Title||Seasonal Differences in Air-Snow Chemical Relationships
|Collaborators||Cliff Davidson (CMU), Jack Dibb (UNH), Mary Albert (Cold Regions Research and Engineering Laboratory), Roger Bales (Univ. of Arizona), Donald Blake (UC-Irvine), Jonathan Kahl (Univ. of Wisconsin)|
|Keywords||Greenland, ice cores, atmospheric chemistry, snow, meteorology|
As this proposal is being submitted, representatives of several
of the research teams involved are en route to Summit, Greenland
The 1997-1998 winter-over campaign also represents a logistical
In recognition of the "experimental" nature of the 1997-1998 deployment, sampling and analytical plans were designed with the idea of making key measurements with proven, robust techniques. We wanted to be sure that the winter-over staff would have time to work out any bugs in the new infrastructure and implement improvements in operations, so science duties were designed to take up on the order of 6-8 hours/day. In the future, upkeep of camp should require less time, so more ambitious sampling protocols will be feasible. We intend to continue making all of the basic measurements begun in the 1997-1998 season, in order to gain some impression of inter-annual variability in both the meteorological and chemical conditions at Summit, but we are also proposing to deploy more complicated samplers and instruments. These will allow measurements of additional species and parameters, at the expense of requiring more attention from the site personnel and a higher likelihood of partial failure of some experiments in the harsh winter conditions. The realization that some equipment may require significant modification to function throughout the year provides additional motivation to propose a two year campaign, with the first winter providing invaluable experience and insight into problems that cannot be simulated in a cold-room environment.