Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.dsr.2017.10.008 |
Atmospheric iron fluxes in the northern region of the Gulf of California: Implications for primary production and potential Fe limitation | |
Munoz-Barbosa, Albino1,2; Segovia-Zavala, Jose A.3; Angel Huerta-Diaz, Miguel2; Delgadillo-Hinojosa, Francisco2; Torres-Delgado, Eunice V.2; Lares, Maria L.3; Marinone, Silvio G.3; Gutierrez-Galindo, Efrain A.4 | |
通讯作者 | Angel Huerta-Diaz, Miguel |
来源期刊 | DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS
![]() |
ISSN | 0967-0637 |
EISSN | 1879-0119 |
出版年 | 2017 |
卷号 | 129页码:69-79 |
英文摘要 | To study the temporal variability of atmospheric mineral dust and Fe fluxes to the northern region of the Gulf of California, dust samples were collected at San Felipe, Baja California (Site 1) and Puerto Penasco, Sonora (Site 2), from May 2010 to December 2011. Dust fluxes were partially associated with monsoon circulation, with highest (38 +/- 20 mg m(-2) d(-1)) and lowest (8.8 +/- 4.9 mg m(-2) d(-1)) fluxes linked to southwesterly winds (monsoon season) and north-northwesterly winds (non-monsoon season), respectively. Our analysis suggests that the surrounding deserts are the most probable source of dust arriving into the Gulf of California. However, analyses of Al and Fe concentrations in dusts showed no trends that could identify specific particulate Fe provenance. Average particulate Fe atmospheric fluxes Fe-Atm) showed no clear temporal trends and their magnitudes (3.2 +/- 3.4 and 6 +/- 10 mu mol m(-2) d(-1) for sites 1 and 2, respectively) could be considered medium-to-low in magnitude within a global context. An Fe limitation index (FeLI), calculated as the ratio of phytoplankton Fe requirements to atmospheric and upwelling Fe fluxes, is proposed to estimate the impact of atmospheric mineral dust on phytoplankton primary production in surface waters of the Gulf of California. On a seasonal time scale, FeLI results suggest that under winter conditions, there is no evidence of Fe limitation because upwelling Fe contribution (Fe-Up) is high enough to support primary production. In contrast, during summer conditions, when Fe-Up is very low or negligible, high Fe-Atm combined with, high particulate Fe dissolution factors could prevent the northern Gulf of California from becoming Fe-limited. Finally, we postulate that at an interannual scale, conditions prevailing during ENSO events could increase atmospheric Fe fluxes to the Gulf of California, further contributing to prevent Fe limitation in this marginal sea. |
英文关键词 | Iron limitation Index Dust fluxes Monsoonal circulation Gulf of California |
类型 | Article |
语种 | 英语 |
国家 | Mexico |
收录类别 | SCI-E |
WOS记录号 | WOS:000416191600007 |
WOS关键词 | ATLANTIC OCEAN ; DUST TRANSPORT ; PACIFIC-OCEAN ; SAHARAN DUST ; TRACE-METALS ; SEA-SURFACE ; DEPOSITION ; VARIABILITY ; AEROSOL ; TRAJECTORIES |
WOS类目 | Oceanography |
WOS研究方向 | Oceanography |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/198270 |
作者单位 | 1.Inst Invest Oceanol, Fac Ciencias Marinas, Posgrad Oceanog Costera, Ensenada, Baja California, Mexico; 2.Univ Autonoma Baja Calif, Inst Invest Oceanol, Carretera Ensenada Tijuana 3917, Ensenada 22860, Baja California, Mexico; 3.Ctr Invest Cient & Educ Super Ensenada, Carretera Ensenada Tijuana 3918, Ensenada 22860, Baja California, Mexico; 4.Ctr Estudios Tecnol Mar 11, Direcc Gen Ciencia & Tecnol Mar SEP, Carretera Ensenada Tijuana Apartado Postal 1788, Ensenada 22800, Baja California, Mexico |
推荐引用方式 GB/T 7714 | Munoz-Barbosa, Albino,Segovia-Zavala, Jose A.,Angel Huerta-Diaz, Miguel,et al. Atmospheric iron fluxes in the northern region of the Gulf of California: Implications for primary production and potential Fe limitation[J],2017,129:69-79. |
APA | Munoz-Barbosa, Albino.,Segovia-Zavala, Jose A..,Angel Huerta-Diaz, Miguel.,Delgadillo-Hinojosa, Francisco.,Torres-Delgado, Eunice V..,...&Gutierrez-Galindo, Efrain A..(2017).Atmospheric iron fluxes in the northern region of the Gulf of California: Implications for primary production and potential Fe limitation.DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS,129,69-79. |
MLA | Munoz-Barbosa, Albino,et al."Atmospheric iron fluxes in the northern region of the Gulf of California: Implications for primary production and potential Fe limitation".DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS 129(2017):69-79. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。