Carbonyl Sulfide for Tracing Carbon Fluxes Field Campaign Report

Campbell, J. Elliott²  Berry, Joseph A.³  Billesbach, Dave⁴  Torn, Margaret S⁵  Zahniser, Mark⁶  Seibt, Ulrike⁷  Maseyk, Kadmiel⁸ 

[1] Pacific Northwest National Laboratory;Univ. of California, Merced, CA (United States);Carnegie Inst. of Science, Stanford, CA (United States);Univ. of Nebraska, Lincoln, NE (United States);Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States);Aerodyne Research, Inc., Billerica, MA (United States);Univ. of California, Los Angeles, CA (United States);Pierre????and????Marie Curie Univ., Paris (France)

关键词: atmospheric carbonyl sulfide;    Southern Great Plains;    gross primary productivity;    carbon cycle;   

DOI  :  10.2172/1251154
RP-ID  :  DOE/SC--ARM-16-024
PID  :  OSTI ID: 1251154

学科分类：环境科学（综合）

美国|英语

来源: SciTech Connect

【 摘 要 】

The April-June 2012 campaign was located at the U.S. Department of Energy (DOE)???s Atmospheric Radiation Measurement (ARM) Climate Research Facility Southern Great Plains (SGP) site Central Facility and had three purposes. One goal was to demonstrate the ability of current instrumentation to correctly measure fluxes of atmospheric carbonyl sulfide (COS). The approach has been describe previously as a critical approach to advancing carbon cycle science1,2, but requires further investigation at the canopy scale to resolve ecosystem processes. Previous canopy-scale efforts were limited to data rates of 1Hz. While 1 Hz measurements may work in a few ecosystems, it is widely accepted that data rates of 10 to 20 Hz are needed to fully capture the exchange of traces gases between the atmosphere and vegetative canopy. A second goal of this campaign was to determine if canopy observations could provide information to help interpret the seasonal double peak in airborne observations at SGP of CO₂ and COS mixing ratios. A third goal was to detect potential sources and sinks of COS that must be resolved before using COS as a tracer of gross primary productivity (GPP).