The Gulf of Anadyr (GA), one of the largest and most poorly investigated gulfs of the Bering Sea, is an important part of the Pacific Arctic. Drivers and mechanisms responsible for the spatial variations in surface seawater CO₂ system parameters and associated air–sea CO₂ fluxes were investigated during three oceanographic cruises conducted in the GA during the open water season of 1992, 2002, and 2011. It was shown that the surface waters of the GA were moderate to strong sinks for atmospheric CO₂ during this season: mean air-sea CO₂ fluxes for the investigated areas of the GA, for the three cruises, were −31, −15, and −30 mmol CO₂ m⁻² d⁻¹, respectively. The summer air-sea CO₂ flux was attributed to intensive phytoplankton bloom, and fall CO₂ uptake coincided with a period of strong winds and seasonal enhanced primary production. The surface waters of the GA were supersaturated with respect to aragonite during the investigated period. Anadyr Strait, a region of high hydrodynamic activity, was the only area where CO₂ efflux was observed. Surface waters of the strait were supersaturated with respect to CO₂ and in quasi-equilibrium with respect to aragonite. We found that during the late summer/fall season, the Anadyr Current exported a well-mixed, relatively cold, salty, nutrient- and CO₂-rich water through the western Anadyr Strait into the Chirikov Basin. Our research highlights the need for mesoscale studies of the western Bering Sea to produce the most accurate assessment of the regional CO₂ budget.

阿纳迪尔湾（GA）是白令海最大，调查最不完善的海湾之一，是太平洋北极的重要组成部分。在1992年，2002年和2011年的开阔水域，在GA进行的三次海洋航行中，研究了造成地表海水CO ₂系统参数和相关海气CO ₂通量空间变化的驱动因素和机制。结果表明，在此季节，GA的地表水为大气CO _2的中度至强汇：在三个巡游中，GA的被调查区域的平均海海CO ₂通量为-31，-15和-30 mmol CO ₂ m ^-2 d ^-1， 分别。夏季空气海中CO _2的通量归因于浮游植物的密集开花，秋季CO _2的吸收与强风时期和季节性初级生产的增加相吻合。在研究期间，GA的地表水相对于文石而言过饱和。Anadyr海峡是一个高水动力活动区域，是唯一观察到CO ₂外流的区域。海峡的地表水相对于CO ₂过饱和，而相对于文石则过饱和。我们发现，在夏末/秋季，Anadyr Current出口了混合良好，相对较冷，咸，营养丰富的CO ₂丰富的水通过西部的阿纳德尔海峡进入奇里科夫盆地。我们的研究强调需要对白令海西部进行中尺度研究，以便对区域CO ₂预算进行最准确的评估。