气候变化领域集成服务门户(CCPortal): Annual Mixed Layer Carbon Budget for the West Antarctic Peninsula Continental Shelf: Insights From Year-Round Mooring Measurements

CCPortal

DOI	10.1029/2020JC016920
	Annual Mixed Layer Carbon Budget for the West Antarctic Peninsula Continental Shelf: Insights From Year-Round Mooring Measurements
	Yang B.; Shadwick E.H.; Schultz C.; Doney S.C.
发表日期	2021
ISSN	21699275
卷号	126 期号:4
英文摘要	For the first time the annual carbon budget on the West Antarctic Peninsula shelf was studied with continuously measured CO2 system parameters (pH and pCO2) from a subsurface mooring. The temporal evolution of the mixed layer dissolved inorganic carbon (DIC) is investigated via a mass balance. The annual mixed layer DIC inventory change was 1.1 ± 0.4 mol m−2 yr−1, which was mainly regulated by biological drawdown (−2.8 ± 2.4 mol m−2 yr−1), diapycnal eddy diffusion (2.6 ± 1.3 mol m−2 yr−1), entrainment/detrainment (0.9 ± 0.4 mol m−2 yr−1), and air-water gas exchange (0.4 ± 2.1 mol m−2 yr−1). Significant carbon drawdown was observed in the spring and summer, which was replenished by the physical processes mentioned above. These observations suggest this area is an annual atmosphere CO2 sink with a mixed layer net community production of 2.8 ± 2.4 mol m−2 yr−1. These results highlight the significant seasonality in the DIC mass balance and the necessity of year-round continuous observations for robust assessments of biogeochemical cycling in this region. © 2021. The Authors.
语种	英语
来源期刊	Journal of Geophysical Research: Oceans
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/186355
作者单位	Department of Environmental Sciences, University of Virginia, Charlottesville, VA, United States; Cooperative Institute for Marine and Atmospheric Studies, Rosenstiel School of Marine and Atmospheric Science, University of Miami, Miami, FL, United States; Atlantic Oceanographic and Meteorological Laboratory (AOML), NOAA, Miami, FL, United States; CSIRO Oceans and Atmosphere, Hobart, TAS, Australia
推荐引用方式 GB/T 7714	Yang B.,Shadwick E.H.,Schultz C.,et al. Annual Mixed Layer Carbon Budget for the West Antarctic Peninsula Continental Shelf: Insights From Year-Round Mooring Measurements[J],2021,126(4).
APA	Yang B.,Shadwick E.H.,Schultz C.,&Doney S.C..(2021).Annual Mixed Layer Carbon Budget for the West Antarctic Peninsula Continental Shelf: Insights From Year-Round Mooring Measurements.Journal of Geophysical Research: Oceans,126(4).
MLA	Yang B.,et al."Annual Mixed Layer Carbon Budget for the West Antarctic Peninsula Continental Shelf: Insights From Year-Round Mooring Measurements".Journal of Geophysical Research: Oceans 126.4(2021).