Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017GL073583 |
Melting glaciers stimulate large summer phytoplankton blooms in southwest Greenland waters | |
Arrigo, Kevin R.1; van Dijken, Gert L.1; Castelao, Renato M.2; Luo, Hao2; Rennermalm, Asa K.3; Tedesco, Marco4,5; Mote, Thomas L.6; Oliver, Hilde2; Yager, Patricia L.2 | |
2017-06-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:12 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Each summer, large quantities of freshwater and associated dissolved and particulate material are released from the Greenland Ice Sheet (GrIS) into local fjords where they promote local phytoplankton growth. Whether the influx of freshwater and associated micronutrients in glacial meltwater is able to stimulate phytoplankton growth beyond the fjords is disputed, however. Here we show that the arrival of freshwater discharge from outlet glaciers from both southeast and southwest GrIS coincides with large-scale blooms in the Labrador Sea that extend over 300 km from the coast during summer. This summer bloom develops about a week after the arrival of glacial meltwater in early July and persists until the input of glacial meltwater slows in August or September, accounting for similar to 40% of annual net primary production for the area. In view of the absence of a significant change in the depth of the mixed layer associated with the arrival of glacial meltwater to the Labrador Sea, we suggest that the increase in phytoplankton biomass and productivity in summer is likely driven by a greater nutrient supply (most likely iron). Our results highlight that the ecological impact of meltwater from the GrIS likely extends far beyond the boundaries of the local fjords, encompassing much of the eastern Labrador Sea. Such impacts may increase if melting of the GrIS accelerates as predicted. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000405854200047 |
WOS关键词 | NORTH-ATLANTIC ; ICE-SHEET ; MELTWATER ; IRON ; DYNAMICS ; CLIMATE ; GROWTH ; FJORD ; MODEL ; FLUX |
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/28553 |
专题 | 气候变化 |
作者单位 | 1.Stanford Univ, Dept Earth Syst Sci, Stanford, CA 94305 USA; 2.Univ Georgia, Dept Marine Sci, Athens, GA 30602 USA; 3.Rutgers State Univ, Dept Geog, Piscataway, NJ USA; 4.Columbia Univ, Lamont Doherty Earth Observ, Palisades, NY USA; 5.NASA, Goddard Inst Space Studies, New York, NY 10025 USA; 6.Univ Georgia, Dept Geog, Athens, GA 30602 USA |
推荐引用方式 GB/T 7714 | Arrigo, Kevin R.,van Dijken, Gert L.,Castelao, Renato M.,et al. Melting glaciers stimulate large summer phytoplankton blooms in southwest Greenland waters[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(12). |
APA | Arrigo, Kevin R..,van Dijken, Gert L..,Castelao, Renato M..,Luo, Hao.,Rennermalm, Asa K..,...&Yager, Patricia L..(2017).Melting glaciers stimulate large summer phytoplankton blooms in southwest Greenland waters.GEOPHYSICAL RESEARCH LETTERS,44(12). |
MLA | Arrigo, Kevin R.,et al."Melting glaciers stimulate large summer phytoplankton blooms in southwest Greenland waters".GEOPHYSICAL RESEARCH LETTERS 44.12(2017). |
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