GSTDTAP

浏览/检索结果: 共11条,第1-10条 帮助

已选(0)清除 条数/页:   排序方式:
Tracking of marine predators to protect Southern Ocean ecosystems 期刊论文
NATURE, 2020
作者:  Kim, Eugene;  Kerssemakers, Jacob;  Shaltiel, Indra A.;  Haering, Christian H.;  Dekker, Cees
收藏  |  浏览/下载:38/0  |  提交时间:2020/07/03

Tracking data from 17 marine predator species in the Southern Ocean are used to identify Areas of Ecological Significance, the protection of which could help to mitigate increasing pressures on Southern Ocean ecosystems.


Southern Ocean ecosystems are under pressure from resource exploitation and climate change(1,2). Mitigation requires the identification and protection of Areas of Ecological Significance (AESs), which have so far not been determined at the ocean-basin scale. Here, using assemblage-level tracking of marine predators, we identify AESs for this globally important region and assess current threats and protection levels. Integration of more than 4,000 tracks from 17 bird and mammal species reveals AESs around sub-Antarctic islands in the Atlantic and Indian Oceans and over the Antarctic continental shelf. Fishing pressure is disproportionately concentrated inside AESs, and climate change over the next century is predicted to impose pressure on these areas, particularly around the Antarctic continent. At present, 7.1% of the ocean south of 40 degrees S is under formal protection, including 29% of the total AESs. The establishment and regular revision of networks of protection that encompass AESs are needed to provide long-term mitigation of growing pressures on Southern Ocean ecosystems.


  
Oceanic forcing of penultimate deglacial and last interglacial sea-level rise 期刊论文
NATURE, 2020, 577 (7792) : 660-+
作者:  Rizal, Yan;  Westaway, Kira E.;  Zaim, Yahdi;  van den Bergh, Gerrit D.;  Bettis, E. Arthur, III;  Morwood, Michael J.;  Huffman, O. Frank;  Grun, Rainer;  Joannes-Boyau, Renaud;  Bailey, Richard M.;  Sidarto;  Westaway, Michael C.;  Kurniawan, Iwan;  Moore, Mark W.;  Storey, Michael;  Aziz, Fachroel;  Suminto;  Zhao, Jian-xin;  Aswan;  Sipola, Maija E.;  Larick, Roy;  Zonneveld, John-Paul;  Scott, Robert;  Putt, Shelby;  Ciochon, Russell L.
收藏  |  浏览/下载:42/0  |  提交时间:2020/05/13

Sea-level histories during the two most recent deglacial-interglacial intervals show substantial differences(1-3) despite both periods undergoing similar changes in global mean temperature(4,5) and forcing from greenhouse gases(6). Although the last interglaciation (LIG) experienced stronger boreal summer insolation forcing than the present interglaciation(7), understanding why LIG global mean sea level may have been six to nine metres higher than today has proven particularly challenging(2). Extensive areas of polar ice sheets were grounded below sea level during both glacial and interglacial periods, with grounding lines and fringing ice shelves extending onto continental shelves(8). This suggests that oceanic forcing by subsurface warming may also have contributed to ice-sheet loss(9-12) analogous to ongoing changes in the Antarctic(13,14) and Greenland(15) ice sheets. Such forcing would have been especially effective during glacial periods, when the Atlantic Meridional Overturning Circulation (AMOC) experienced large variations on millennial timescales(16), with a reduction of the AMOC causing subsurface warming throughout much of the Atlantic basin(9,12,17). Here we show that greater subsurface warming induced by the longer period of reduced AMOC during the penultimate deglaciation can explain the more-rapid sea-level rise compared with the last deglaciation. This greater forcing also contributed to excess loss from the Greenland and Antarctic ice sheets during the LIG, causing global mean sea level to rise at least four metres above modern levels. When accounting for the combined influences of penultimate and LIG deglaciation on glacial isostatic adjustment, this excess loss of polar ice during the LIG can explain much of the relative sea level recorded by fossil coral reefs and speleothems at intermediate- and far-field sites.


  
Identifying the footprints of global climate modes in time-variable gravity hydrological signals 期刊论文
CLIMATIC CHANGE, 2019
作者:  Ndehedehe, Christopher E.;  Ferreira, Vagner G.
收藏  |  浏览/下载:17/0  |  提交时间:2020/02/17
Amazon basin  GRACE  PDO  Pacific SST  ENSO  North Tropical Atlantic  
Terrestrial water storage and Pacific SST affect the monthly water balance of Itacaiunas River Basin (Eastern Amazonia) 期刊论文
INTERNATIONAL JOURNAL OF CLIMATOLOGY, 2019
作者:  Cavalcante, Rosane B. L.;  Pontes, Paulo R. M.;  Tedeschi, Renata G.;  Costa, Claudia P. W.;  Ferreira, Douglas B. S.;  Souza-Filho, Pedro W. M.;  de Souza, Everaldo B.
收藏  |  浏览/下载:19/0  |  提交时间:2020/02/17
Amazonia  El Nino-Southern Oscillation  GRACE  Itacaiunas River Basin  North Atlantic Sea surface temperature  terrestrial water storage  water balance  
African biomass burning is a substantial source of phosphorus deposition to the Amazon, Tropical Atlantic Ocean, and Southern Ocean 期刊论文
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2019, 116 (33) : 16216-16221
作者:  Barkley, Anne E.;  Prospero, Joseph M.;  Mahowald, Natalie;  Hamilton, Douglas S.;  Popendorf, Kimberly J.;  Oehlert, Amanda M.;  Pourmand, Ali;  Gatineau, Alexandre;  Panechou-Pulcherie, Kathy;  Blackwelder, Patricia;  Gaston, Cassandra J.
收藏  |  浏览/下载:22/0  |  提交时间:2019/11/27
dust  biomass burning  phosphorus  Atlantic Ocean  Amazon Basin  
Mediterranean winter snowfall variability over the past millennium 期刊论文
INTERNATIONAL JOURNAL OF CLIMATOLOGY, 2019, 39 (1) : 384-394
作者:  Diodato, Nazzareno;  Buntgen, Ulf;  Bellocchi, Gianni
收藏  |  浏览/下载:17/0  |  提交时间:2019/04/09
Atlantic multidecadal variability  climate reconstruction  Mediterranean basin  snowfall variability  winter hydroclimate  
Model bias for South Atlantic Antarctic intermediate water in CMIP5 期刊论文
CLIMATE DYNAMICS, 2018, 50: 3613-3624
作者:  Zhu, Chenyu;  Liu, Zhengyu;  Gu, Sifan
收藏  |  浏览/下载:30/0  |  提交时间:2019/04/09
Antarctic intermediate water  Model bias  Surface climate  Inter-basin exchange  North Atlantic  Atlantic meridional overturning circulation freshwater transport  
Impact of the equatorial Pacific and South Atlantic SST anomalies on extremes in austral summer precipitation over Grande river basin in Southeast Brazil 期刊论文
INTERNATIONAL JOURNAL OF CLIMATOLOGY, 2018, 38: E131-E143
作者:  Bernardino, Beatriz S.;  Vasconcellos, Fernanda C.;  Nunes, Ana M. B.
收藏  |  浏览/下载:17/0  |  提交时间:2019/04/09
Grande river basin  extremes  climate variability  South Atlantic Convergence Zone  seasonal scale  Brazil  
Spatial characteristics of storm-total rainfall swaths associated with tropical cyclones over the Eastern United States 期刊论文
INTERNATIONAL JOURNAL OF CLIMATOLOGY, 2017, 37
作者:  Zhou, Yao;  Matyas, Corene J.
收藏  |  浏览/下载:16/0  |  提交时间:2019/04/09
tropical cyclone  North Atlantic basin  storm-total rainfall  spatial pattern  Geographic Information System  
Variability in warm-season atmospheric circulation and precipitation patterns over subtropical South America: relationships between the South Atlantic convergence zone and large-scale organized convection over the La Plata basin 期刊论文
CLIMATE DYNAMICS, 2017, 48
作者:  Mattingly, Kyle S.;  Mote, Thomas L.
收藏  |  浏览/下载:21/0  |  提交时间:2019/04/09
South American monsoon  La Plata basin  South Atlantic convergence zone  Mesoscale convective systems