Research published on the ESS Open Archive reveals that intricate physical and biological interactions are responsible for creating diverse sea-air carbon dioxide (CO2) fluxes on the northern Patagonian Shelf, especially during periods of low biological productivity. The study delves into how these combined factors modulate the exchange of CO2 between the atmosphere and the ocean in this specific region. The Patagonian Shelf is a critical area for marine research due to its unique oceanographic characteristics and its role in the global carbon cycle. Previous studies have indicated that the Patagonian Sea acts as a net CO2 sink, with the northern region exhibiting higher CO2 uptake than the southern region. The biological pump, driven by phytoplankton photosynthesis, plays a dominant role in this CO2 uptake, particularly during spring. However, thermal effects also influence CO2 emissions and uptake, with different regions showing varying responses. This new research specifically focuses on the low-productivity season, a period often characterized by different physical and biological processes compared to more active seasons. Understanding these dynamics is crucial for accurately assessing the overall carbon budget of the region and its contribution to global carbon sequestration. The findings are expected to enhance our comprehension of oceanic carbon sinks and their complex behavior under varying environmental conditions, which is vital for climate modeling and policy-making. The ESS Open Archive serves as a platform for disseminating early research outputs, including preprints, allowing for rapid sharing of scientific findings. While the content on ESS Open Archive is not peer-reviewed, it is indexed and discoverable, contributing to the open science movement. This study contributes to a growing body of research on ocean-atmosphere CO2 exchange, which is essential for understanding climate change. Recent broader research has also indicated that the Southern Ocean, in general, absorbs more CO2 than previously thought, emphasizing the significant role of oceans in mitigating climate change.