 | What Can We Learn from Intensive Atmospheric Sampling Field Programs? |
 by John Lin
Intensive atmospheric
sampling field programs are envisioned as a key component of integrated
research programs such as the North American Carbon Program (NACP) [Sarmiento and Wofsy,
1999; Wofsy and Harriss, 2002]. The intensive
sampling provides unique information about the spatial distribution of CO2
as well as imposes tight constraints on regional budgets that are difficult to
obtain from other means. We summarize what we have learned from the numerous
COBRA (CO2 Budget and Rectification Airborne study) experiments [Gerbig et al.,
2003a] that have taken place in 2000, 2003, and 2004. We present the observed spatial variability
of CO2 [Gerbig et al., 2003a; Lin et al.,
2004a] and regional budgets derived from regional air
parcel-following experiments [Lin et al., 2004b]. These
observations are also used as a critical testbed for modeling frameworks [Gerbig et al.,
2003b]. We draw conclusions about ways to maximize the value
of intensive atmospheric sampling experiments and the role that such
experiments should play within programs like the NACP.
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