Precision Gas Sampling (PGS) Validation2011-2014 Final Campaign Report

doi:10.2172/1236603

GSTDTAP > 地球科学

DOI	10.2172/1236603
报告编号	DOE/SC-ARM--15-028
来源ID	OSTI ID: 1236603
	Precision Gas Sampling (PGS) Validation2011-2014 Final Campaign Report
	Tom, M. S.; Fischer, M. L.; Biraud, S. C.; Billesbach, D.
	2016
出版年	2016
页数	11
语种	英语
国家	美国
出版者	DOE ARM Climate Research Facility, Pacific Northwest National Laboratory;Richland, Washington
领域	地球科学
英文摘要	In this field campaign, we used eddy covariance towers to quantify carbon, water, and energy fluxes from a pasture and a wheat field that were converted to switchgrass. The U.S. Department of Energy is investing in switchgrass as a cellulosic bioenergy crop, but there is little data available that could be used to develop or test land surface model representations of the crop. This campaign was a collaboration between Lawrence Berkeley National Laboratory and the U.S. Department of Agriculture Agricultural Research Service. Unfortunately, in 2011, Oklahoma had one of the most severe droughts on record, and the crop in one of the switchgrass fields experienced almost complete die-off. The crop was replanted, but subsequent drought conditions prevented its establishment. Then, in April 2012, a large tornado demolished the instruments at our site in Woodward, Oklahoma. These two events meant that we have some interesting data on land response to extreme weather; however, we were not able to collect continuous data for annual sums as originally intended. We did observe that, because of the drought, the net ecosystem exchange of CO₂ was much lower in 2011 than in 2010. Concomitantly, sensible heat fluxes increased and latent heat fluxes decreased. These conditions would have large consequences for land surface forcing of convection. Data from all years were submitted to the Atmospheric Radiation Measurement Climate Research Facility Data Archive, and the sites were registered in AmeriFlux.
URL	查看原文
来源平台	US Department of Energy (DOE)
引用统计
文献类型	科技报告
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/7341
专题	地球科学
推荐引用方式 GB/T 7714	Tom, M. S.,Fischer, M. L.,Biraud, S. C.,et al. Precision Gas Sampling (PGS) Validation2011-2014 Final Campaign Report:DOE ARM Climate Research Facility, Pacific Northwest National Laboratory;Richland, Washington,2016.