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Title: A global database of dissolved organic matter (DOM) concentration measurements in coastal waters (CoastDOM v1)
Authors: Lonborg, Christian
Carreira, Catia
Abril, Gwenael
Agusti, Susana
Amaral, Valentina
Andersson, Agneta
Aristegui, Javier 
Bhadury, Punyasloke
Bif, Mariana B.
Borges, Alberto V.
Bouillon, Steven
Calleja, Maria Ll.
Cotovicz Jr, Luiz C.
Cozzi, Stefano
Doval, Marylo
Duarte, Carlos M.
Eyre, Bradley
Fichot, Cedric G.
Garcia-Martin, E. Elena
Garzon-Garcia, Alexandra
Giani, Michele
Goncalves-Araujo, Rafael
Gruber, Renee
Hansell, Dennis A.
Hashihama, Fuminori
He, Ding
Holding, Johnna M.
Hunter, William R.
Ibanhez, J. Severino P.
Ibello, Valeria
Jiang, Shan
Kim, Guebuem
Klun, Katja
Kowalczuk, Piotr
Kubo, Atsushi
Lee, Choon-Weng
Lopes, Claudia B.
Maggioni, Federica
Magni, Paolo
Marrase, Celia
Martin, Patrick
Mccallister, S. Leigh
Mccallum, Roisin
Medeiros, Patricia M.
Moran, Xose Anxelu G.
Muller-Karger, Frank E.
Myers-Pigg, Allison
Norli, Marit
Oakes, Joanne M.
Osterholz, Helena
Park, Hyekyung
Lund Paulsen, Maria
Rosentreter, Judith A.
Ross, Jeff D.
Rueda-Roa, Digna
Santinelli, Chiara
Shen, Yuan
Teira, Eva
Tinta, Tinkara
Uher, Guenther
Wakita, Masahide
Ward, Nicholas
Watanabe, Kenta
Xin, Yu
Yamashita, Youhei
Yang, Liyang
Yeo, Jacob
Yuan, Huamao
Zheng, Qiang
Alvarez-Salgado, Xose Anton
UNESCO Clasification: 251002 Oceanografía química
251001 Oceanografía biológica
Keywords: Nitrogen
Issue Date: 2024
Journal: Earth System Science Data 
Abstract: Measurements of dissolved organic carbon (DOC), nitrogen (DON), and phosphorus (DOP) concentrations are used to characterize the dissolved organic matter (DOM) pool and are important components of biogeochemical cycling in the coastal ocean. Here, we present the first edition of a global database (CoastDOM v1; available at, L & oslash;nborg et al., 2023) compiling previously published and unpublished measurements of DOC, DON, and DOP in coastal waters. These data are complemented by hydrographic data such as temperature and salinity and, to the extent possible, other biogeochemical variables (e.g. chlorophyll a, inorganic nutrients) and the inorganic carbon system (e.g. dissolved inorganic carbon and total alkalinity). Overall, CoastDOM v1 includes observations of concentrations from all continents. However, most data were collected in the Northern Hemisphere, with a clear gap in DOM measurements from the Southern Hemisphere. The data included were collected from 1978 to 2022 and consist of 62 338 data points for DOC, 20 356 for DON, and 13 533 for DOP. The number of measurements decreases progressively in the sequence DOC > DON > DOP, reflecting both differences in the maturity of the analytical methods and the greater focus on carbon cycling by the aquatic science community. The global database shows that the average DOC concentration in coastal waters (average +/- standard deviation (SD): 182 +/- 314 mu mol C L-1; median: 103 mu mol C L-1) is 13-fold higher than the average coastal DON concentration (13.6 +/- 30.4 mu mol N L-1; median: 8.0 mu mol N L-1), which is itself 39-fold higher than the average coastal DOP concentration (0.34 +/- 1.11 mu mol P L-1; median: 0.18 mu mol P L-1). This dataset will be useful for identifying global spatial and temporal patterns in DOM and will help facilitate the reuse of DOC, DON, and DOP data in studies aimed at better characterizing local biogeochemical processes; closing nutrient budgets; estimating carbon, nitrogen, and phosphorous pools; and establishing a baseline for modelling future changes in coastal waters.
ISSN: 1866-3508
DOI: 10.5194/essd-16-1107-2024
Source: Earth System Science Data [ISSN 1866-3508], v. 16 (2), p. 1107-1119, (Febrero 2024)
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