A virtual tall tower network for understanding continental sources and sinks of CO2

Davis, K.J. ; Richardson, S.J. ; Miles, N.L.

关键词: CALIBRATION;    CARBON;    CARBON CYCLE;    DIAGNOSIS;    MIXING RATIO;    WEATHER;    CARBON DIOXIDE carbon dioxide;    tower;    mixing ratio;   

DOI  :  10.2172/900564
RP-ID  :  DOE/ER63654
PID  :  OSTI ID: 900564
Others  :  Other: 695V/W
Others  :  TRN: US200722%%263

学科分类：地球科学(综合)

美国|英语

来源: SciTech Connect

【 摘 要 】

Our understanding of the North American terrestrial carbon cycle is limited by both a lack of continental atmospheric CO2 data, and by a need for methods to interpret these and other continental data with confidence. In response to this challenge a rapid expansion of the N. American carbon cycle observational network is underway. This expansion includes a network of continuous, continental CO2 mixing ratio observations being collected at a subset of AmeriFlux towers. Progress in developing this resource includes instrument development, site installation, calibration and intercalibration efforts, and initiation of a uniform data product. Progess in applying these data include proposed methods for interpreting surface layer measurements in atmospheric inversions (the virtual tall towers approach), examination of coherence patterns in continental mixing ratios in response to weather and climate, and application of these mixing ratio measurements in formal atmospheric inversions. Future work will merge these methods with interpretation of flux towers observations of terrestrial carbon fluxes in an effort to create a single coherent diagnosis of North American terrestrial carbon fluxes over a multi-year period.