The Mediterranean Sea regime shift at the end of the 1980s, and intriguing parallelisms with other European basins.
The Mediterranean Sea regime shift at the end of the 1980s, and intriguing parallelisms with other European basins.
复制标题
DOI：
10.1371/journal.pone.0010633
复制
发表时间：
2010-05-19
期刊：
影响因子：
3.7
通讯作者：
Edwards M
中科院分区：
文献类型：
--
作者：
Conversi A;Fonda Umani S;Peluso T;Molinero JC;Santojanni A;Edwards M
政权转变是涵盖多种物理特性和生态系统变量的突然变化，从而导致新的政权条件。最近的研究重点是生态系统多样性和与此类变化相关的功能的变化。特别令人感兴趣的是，由于对气候驱动因素的影响，不同盆地同步发生的变化。在这项工作中，我们分析和回顾了地中海生态和水文气候变量的长期记录，发现所有这些都表明 20 世纪 80 年代末发生了同步变化。文献的定量综合（包括观测的海洋数据、模型和卫星分析）表明，这些年标志着地中海水文特性、表面环流和深水对流（东地中海瞬变）的重大变化。我们提供了新颖的分析，将地方、区域和流域尺度的水文特性与大尺度气候的两个主要指标——北大西洋涛动指数和北半球温度指数联系起来，表明地中海转变是北半球大规模变化的一部分。我们提供了气候与温度对远洋生态系统不同影响的简化方案。我们的研究结果表明，地中海在 20 世纪 80 年代末经历了大气、水文和生态系统的重大变化，可以被视为政权转变。我们进一步提供证据表明当地水文学与更大范围的北半球气候有关。这些结果表明，20 世纪 80 年代末影响北海、波罗的海、黑海和地中海（本文中）的变化迄今为止只有部分关联，很可能是北半球变化的一部分。这些发现对气候变化情景的发展具有广泛的影响，因为同步变化可能提供区分局部（即流域）人为驱动因素（例如富营养化或捕鱼）与更大规模（半球）气候驱动因素的关键。
Regime shifts are abrupt changes encompassing a multitude of physical properties and ecosystem variables, which lead to new regime conditions. Recent investigations focus on the changes in ecosystem diversity and functioning associated to such shifts. Of particular interest, because of the implication on climate drivers, are shifts that occur synchronously in separated basins. In this work we analyze and review long-term records of Mediterranean ecological and hydro-climate variables and find that all point to a synchronous change in the late 1980s. A quantitative synthesis of the literature (including observed oceanic data, models and satellite analyses) shows that these years mark a major change in Mediterranean hydrographic properties, surface circulation, and deep water convection (the Eastern Mediterranean Transient). We provide novel analyses that link local, regional and basin scale hydrological properties with two major indicators of large scale climate, the North Atlantic Oscillation index and the Northern Hemisphere Temperature index, suggesting that the Mediterranean shift is part of a large scale change in the Northern Hemisphere. We provide a simplified scheme of the different effects of climate vs. temperature on pelagic ecosystems. Our results show that the Mediterranean Sea underwent a major change at the end of the 1980s that encompassed atmospheric, hydrological, and ecological systems, for which it can be considered a regime shift. We further provide evidence that the local hydrography is linked to the larger scale, northern hemisphere climate. These results suggest that the shifts that affected the North, Baltic, Black and Mediterranean (this work) Seas at the end of the 1980s, that have been so far only partly associated, are likely linked as part a northern hemisphere change. These findings bear wide implications for the development of climate change scenarios, as synchronous shifts may provide the key for distinguishing local (i.e., basin) anthropogenic drivers, such as eutrophication or fishing, from larger scale (hemispheric) climate drivers.
登录
查看更多内容
影响因子：
3.7
作者：
Danovaro R;Fonda Umani S;Pusceddu A
通讯作者：
Pusceddu A
DOI：
10.1016/s0967-0645(00)00088-6
发表时间：
2001-01-01
影响因子：
3
作者：
Conversi, A;Piontkovski, S;Hameed, S
通讯作者：
Hameed, S
影响因子：
3.3
作者：
Alheit, J;Möllmann, C;Wasmund, N
通讯作者：
Wasmund, N
影响因子：
2.8
作者：
Dippner, JW;Kornilovs, G;Sidrevics, L
通讯作者：
Sidrevics, L
影响因子：
2.4
作者：
COLEBROOK, JM
通讯作者：
COLEBROOK, JM