Ecosystem Science & Modeling
Permanent URI for this communityhttps://hdl.handle.net/1969.6/89063
Browse
Browsing Ecosystem Science & Modeling by Author "Barbero, Leticia"
Now showing 1 - 3 of 3
- Results Per Page
- Sort Options
Item Best Practice Data Standards for Discrete Chemical Oceanographic Observations(Frontiers in Marine Science, 2022-01-21) Jiang, Li-Qing; Pierrot, Denis; Wanninkhof, Rik; Feely, Richard A.; Tilbrook, Bronte; Alin, Simone; Barbero, Leticia; Byrne, Robert H.; Carter, Brendan R.; Dickson, Andrew G.; Gattuso, Jean-Pierre; Greeley, Dana; Hoppema, Mario; Humphreys, Matthew P.; Karstensen, Johannes; Lange, Nico; Lauvset, Siv K.; Lewis, Ernie R.; Olsen, Are; Pérez, Fiz F.; Sabine, Christopher; Sharp, Jonathan D.; Tanhua, Toste; Trull, Thomas W.; Velo, Anton; Allegra, Andrew J.; Barker, Paul; Burger, Eugene; Cai, Wei-Jun; Chen, Chen-Tung A.; Cross, Jessica; Garcia, Hernan; Hernandez-Ayon, Jose Martin; Hu, Xinping; Kozyr, Alex; Langdon, Chris; Lee, Kitack; Salisbury, Joe; Wang, Zhaohui Aleck; Xue, LiangEffective data management plays a key role in oceanographic research as cruise-based data, collected from different laboratories and expeditions, are commonly compiled to investigate regional to global oceanographic processes. Here we describe new and updated best practice data standards for discrete chemical oceanographic observations, specifically those dealing with column header abbreviations, quality control flags, missing value indicators, and standardized calculation of certain properties. These data standards have been developed with the goals of improving the current practices of the scientific community and promoting their international usage. These guidelines are intended to standardize data files for data sharing and submission into permanent archives. They will facilitate future quality control and synthesis efforts and lead to better data interpretation. In turn, this will promote research in ocean biogeochemistry, such as studies of carbon cycling and ocean acidification, on regional to global scales. These best practice standards are not mandatory. Agencies, institutes, universities, or research vessels can continue using different data standards if it is important for them to maintain historical consistency. However, it is hoped that they will be adopted as widely as possible to facilitate consistency and to achieve the goals stated above.Item Carbon cycling in the North American coastal ocean: a synthesis(2019-03-27) Fennel, Katja; Alin, Simone; Barbero, Leticia; Evans, Wiley; Bourgeois, Timothée; Cooley, Sarah; Dunne, John; Feely, Richard A.; Hernandez-Ayon, Jose Martin; Hu, Xinping; Lohrenz, Steven; Muller-Karger, Frank; Najjar, Raymond; Robbins, Lisa; Shadwick, Elizabeth; Siedlecki, Samantha; Steiner, Nadja; Sutton, Adrienne; Turk, Daniela; Vlahos, Penny; Wang, Zhaohui AleckA quantification of carbon fluxes in the coastal ocean and across its boundaries with the atmosphere, land, and the open ocean is important for assessing the current state and projecting future trends in ocean carbon uptake and coastal ocean acidification, but this is currently a missing component of global carbon budgeting. This synthesis reviews recent progress in characterizing these carbon fluxes for the North American coastal ocean. Several observing networks and high-resolution regional models are now available. Recent efforts have focused primarily on quantifying the net air–sea exchange of carbon dioxide (CO2). Some studies have estimated other key fluxes, such as the exchange of organic and inorganic carbon between shelves and the open ocean. Available estimates of air–sea CO2 flux, informed by more than a decade of observations, indicate that the North American Exclusive Economic Zone (EEZ) acts as a sink of 160±80 Tg C yr−1, although this flux is not well constrained. The Arctic and sub-Arctic, mid-latitude Atlantic, and mid-latitude Pacific portions of the EEZ account for 104, 62, and −3.7 Tg C yr−1, respectively, while making up 51 %, 25 %, and 24 % of the total area, respectively. Combining the net uptake of 160±80 Tg C yr−1 with an estimated carbon input from land of 106±30 Tg C yr−1 minus an estimated burial of 65±55 Tg C yr−1 and an estimated accumulation of dissolved carbon in EEZ waters of 50±25 Tg C yr−1 implies a carbon export of 151±105 Tg C yr−1 to the open ocean. The increasing concentration of inorganic carbon in coastal and open-ocean waters leads to ocean acidification. As a result, conditions favoring the dissolution of calcium carbonate occur regularly in subsurface coastal waters in the Arctic, which are naturally prone to low pH, and the North Pacific, where upwelling of deep, carbon-rich waters has intensified. Expanded monitoring and extension of existing model capabilities are required to provide more reliable coastal carbon budgets, projections of future states of the coastal ocean, and quantification of anthropogenic carbon contributions.Item Ocean acidification in the Gulf of Mexico: Drivers, impacts, and unknowns(Progress in Oceanography, 2022-10-04) Osborne, Emily; Hu, Xinping; Hall, Emily; Yates, Kimberly; Vreeland-Dawson, Jennifer; Shamberger, Katie; Barbero, Leticia; Hernandez-Ayon, J. Martin; Gomez, Fabian; Hicks, Tacey; Xu, Yuan-Yuan; McCutcheon, Melissa; Acquafredda, Michael; Chapa-Balcorta, Cecilia; Norzagaray, Orion; Pierrot, Denis; Munoz-Caravaca, Alain; Dobson, Kerri; Williams, Nancy; Rabalais, Nancy; Dash, PadmanavaOcean acidification (OA) has resulted in global-scale changes in ocean chemistry, which can disturb marine organisms and ecosystems. Despite its extensively populated coastline, many marine-dependent communities, and valuable economies, the Gulf of Mexico (GOM) remains a relatively understudied region with respect to acidification. In general, the warm waters of the GOM are better buffered from acidification compared to higher latitude seas, yet long-term acidification has been documented in several GOM regions. OA within the GOM is recognized as spatially variable, particularly within the coastal zone where numerous physical and biogeochemical processes contribute to carbonate chemistry dynamics. The historical progression of OA within the entire GOM is difficult to assess because only a few dedicated long-term monitoring sites have recently been established, and full-water column observations are limited. However, environmental drivers on smaller scales that affect GOM acidification were found to include freshwater, nutrient, and carbonate discharge from large rivers; ocean warming, circulation and residence times; and episodic extreme weather events. GOM marine ecosystems provide essential services, including coastline protection and carbon dioxide removal, and habitats for many marine species that are economically and ecologically important. However, organismal and ecosystem responses to OA are not well constrained for the GOM due to a lack of studies examining the specific effects of OA on regionally relevant species under contemporary and projected conditions. Tackling the vast number of remaining scientific unknowns in this region can be coordinated through regional capacity networks, such as the Gulf of Mexico Coastal Acidification Network (GCAN), working to achieve a system-wide understanding of Gulf OA and its impacts. Here we synthesize the current peer-reviewed literature on GOM acidification across the ocean-estuarine continuum and identify critical knowledge, research, and monitoring gaps that limit our current understanding of environmental, ecological, and socioeconomic impacts from acidification.