Net community production (NCP) and gross oxygen production (GOP), based on oxygen-argon ratios and triple oxygen isotopes, from seasonal NES-LTER Transect cruises in 2020

This data package provides net community production (NCP) and gross oxygen production (GOP, a measure of gross primary production) for the winter, spring, and summer Northeast U.S. Shelf Long-Term Ecological Research (NES-LTER) Transect cruises in 2020. Two tables are provided: a high-frequency table with NCP rates calculated from measurements of O2/Ar made continuously by an at-sea equilibrator inlet mass spectrometer (EIMS), and a low-frequency table with both NCP and GOP rates calculated for discrete samples measured post-cruise. The GOP rates were calculated from triple O2 isotopic (TOI) ratios. These data are derived from the EIMS and TOI data for the NES-LTER Transect cruises in EDI data package knb-lter-nes.6.3.

本数据包提供了2020年美国东北陆架长期生态研究（NES-LTER）断面航次冬季、春季与夏季的群落净生产（net community production, NCP）及总氧生产（gross oxygen production, GOP，总初级生产力的度量指标）数据。本数据集包含两张数据表：其一为高频数据表，其群落净生产速率由现场平衡器入口质谱仪（at-sea equilibrator inlet mass spectrometer, EIMS）连续测定的O₂/Ar比值计算得到；其二为低频数据表，其群落净生产与总氧生产速率均基于航次后测定的离散样品计算获得。总氧生产速率通过氧三重同位素（triple O2 isotopic, TOI）比值计算得出。上述数据源自EDI数据包knb-lter-nes.6.3中NES-LTER断面航次的EIMS与TOI数据集。