New and updated global empirical seawater property estimation routines
New and updated global empirical seawater property estimation routines
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新的和更新的全球经验海水特性估计例程
DOI:
10.1002/lom3.10461
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发表时间:
2021
期刊:
影响因子:
--
通讯作者:
Barbero, Leticia
中科院分区:
文献类型:
--
作者:
Carter, Brendan R.;Bittig, Henry C.;Fassbender, Andrea J.;Sharp, Jonathan D.;Takeshita, Yuichiro;Xu, Yuan‐Yuan;Álvarez, Marta;Wanninkhof, Rik;Feely, Richard A.;Barbero, Leticia
We introduce three new Empirical Seawater Property Estimation Routines (ESPERs) capable of predicting seawater phosphate, nitrate, silicate, oxygen, total titration seawater alkalinity, total hydrogen scale pH (pHT), and total dissolved inorganic carbon (DIC) from up to 16 combinations of seawater property measurements. The routines generate estimates from neural networks (ESPER_NN), locally interpolated regressions (ESPER_LIR), or both (ESPER_Mixed). They require a salinity value and coordinate information, and benefit from additional seawater measurements if available. These routines are intended for seawater property measurement quality control and quality assessment, generating estimates for calculations that require approximate values, original science, and producing biogeochemical property context from a data set. Relative to earlier LIR routines, the updates expand their functionality, including new estimated properties and combinations of predictors, a larger training data product including new cruises from the 2020 Global Data Analysis Project data product release, and the implementation of a first-principles approach for quantifying the impacts of anthropogenic carbon on DIC and pHT. We show that the new routines perform at least as well as existing routines, and, in some cases, outperform existing approaches, even when limited to the same training data. Given that additional training data has been incorporated into these updated routines, these updates should be considered an improvement over earlier versions. The routines are intended for all ocean depths for the interval from 1980 to ~2030 c.e., and we caution against using the routines to directly quantify surface ocean seasonality or make more distant predictions of DIC or pHT.
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影响因子:
3
作者:
Takeshita, Yuichiro;Warren, Joseph K.;Liu, Xuewu;Spaulding, Reggie S.;Byrne, Robert H.;Carter, Brendan R.;DeGrandpre, Michael D.;Murata, Akihiko;Watanabe, Shu-ichi
通讯作者:
Watanabe, Shu-ichi
影响因子:
5.2
作者:
Nancy L. Williams;L. Juranek;Kenneth S. Johnson;R. Feely;S. Riser;Lynne D. Talley;Joellen Russell;Jorge L. Sarmiento;R. Wanninkhof
通讯作者:
R. Wanninkhof
影响因子:
11.4
作者:
Broullon, Daniel;Perez, Fiz F.;van Heuven, Steven M. A. C.
通讯作者:
van Heuven, Steven M. A. C.
DOI:
--
发表时间:
2018
期刊:
Journal of Geophysical Research: Oceans
影响因子:
--
作者:
Y. Takeshita;Kenneth S. Johnson;T. Martz;J. Plant;J. Sarmiento
通讯作者:
J. Sarmiento
影响因子:
5.2
作者:
B. Carter;R. Feely;S. Lauvset;A. Olsen;T. DeVries;R. Sonnerup
通讯作者:
R. Sonnerup