Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2018GL081166 |
Detecting Signals of Large-Scale Climate Phenomena in Discharge and Nutrient Loads in the Mississippi-Atchafalaya River Basin | |
Smits, A. P.1,2; Ruffing, C. M.3,4; Royer, T., V5; Appling, A. P.6; Griffiths, N. A.7,8; Bellmore, R.9; Scheuerell, M. D.10; Harms, T. K.3,11; Jones, J. B.3,11 | |
2019-04-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2019 |
卷号 | 46期号:7页码:3791-3801 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Canada |
英文摘要 | Agricultural runoff from the Mississippi-Atchafalaya River Basin delivers nitrogen (N) and phosphorus (P) to the Gulf of Mexico, causing hypoxia, and climate drives interannual variation in nutrient loads. Climate phenomena such as El Nino-Southern Oscillation may influence nutrient export through effects on river flow, nutrient uptake, or biogeochemical transformation, but landscape variation at smaller spatial scales can mask climate signals in load or discharge time series within large river networks. We used multivariate autoregressive state-space modeling to investigate climate signals in the long-term record (1979-2014) of discharge, N, P, and SiO2 loads at three nested spatial scales within the Mississippi-Atchafalaya River Basin. We detected significant signals of El Nino-Southern Oscillation and land-surface temperature anomalies in N loads but not discharge, SiO2, or P, suggesting that large-scale climate phenomena contribute to interannual variation in nutrient loads through biogeochemical mechanisms beyond simple discharge-load relationships. |
英文关键词 | nitrogen phosphorous multivariate autoregressive state space models climate time series analysis rivers |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000465836200024 |
WOS关键词 | GULF-OF-MEXICO ; NINO-SOUTHERN-OSCILLATION ; TIME-SERIES ; NITROGEN ; NITRATE ; TEMPERATURE ; PHOSPHORUS ; HYPOXIA ; STREAMFLOW ; DELIVERY |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/182372 |
专题 | 气候变化 |
作者单位 | 1.Washington Univ, Sch Aquat & Fisheries Sci, St Louis, MO 63130 USA; 2.Univ Calif Davis, Environm Sci & Policy, Davis, CA 95616 USA; 3.Univ Alaska Fairbanks, Inst Arctic Biol, Fairbanks, AK USA; 4.Univ British Columbia, Dept Forest & Conservat Sci, Vancouver, BC, Canada; 5.Indiana Univ, Sch Publ & Environm Affairs, Bloomington, IN USA; 6.US Geol Survey, Data Sci Branch, Integrated Informat Disseminat Div, USGS Arizona Water Sci Ctr, Tucson, AZ USA; 7.Oak Ridge Natl Lab, Environm Sci Div, Oak Ridge, TN USA; 8.Oak Ridge Natl Lab, Climate Change Sci Inst, Oak Ridge, TN USA; 9.Southeast Alaska Watershed Coalit, Juneau, AK USA; 10.NOAA, Fish Ecol Div, Northwest Fisheries Sci Ctr, Natl Marine Fisheries Serv, Seattle, WA USA; 11.Univ Alaska Fairbanks, Dept Biol & Wildlife, Fairbanks, AK USA |
推荐引用方式 GB/T 7714 | Smits, A. P.,Ruffing, C. M.,Royer, T., V,et al. Detecting Signals of Large-Scale Climate Phenomena in Discharge and Nutrient Loads in the Mississippi-Atchafalaya River Basin[J]. GEOPHYSICAL RESEARCH LETTERS,2019,46(7):3791-3801. |
APA | Smits, A. P..,Ruffing, C. M..,Royer, T., V.,Appling, A. P..,Griffiths, N. A..,...&Jones, J. B..(2019).Detecting Signals of Large-Scale Climate Phenomena in Discharge and Nutrient Loads in the Mississippi-Atchafalaya River Basin.GEOPHYSICAL RESEARCH LETTERS,46(7),3791-3801. |
MLA | Smits, A. P.,et al."Detecting Signals of Large-Scale Climate Phenomena in Discharge and Nutrient Loads in the Mississippi-Atchafalaya River Basin".GEOPHYSICAL RESEARCH LETTERS 46.7(2019):3791-3801. |
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