Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1175/JCLI-D-16-0626.1 |
In Search of Fingerprints of the Recent Intensification of the Ocean Water Cycle | |
Vinogradova, Nadya T.1; Ponte, Rui M.2 | |
2017-07-01 | |
发表期刊 | JOURNAL OF CLIMATE |
ISSN | 0894-8755 |
EISSN | 1520-0442 |
出版年 | 2017 |
卷号 | 30期号:14 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Unprecedented changes in Earth's water budget and a recent boom in salinity observations prompted the use of long-term salinity trends to fingerprint the amount of freshwater entering and leaving the oceans (the ocean water cycle). Here changes in the ocean water cycle in the past two decades are examined to evaluate whether the rain-gauge notion can be extended to shorter time scales. Using a novel framework it is demonstrated that there have been persistent changes (defined as significant trends) in both salinity and the ocean water cycle in many ocean regions, including the subtropical gyres in both hemispheres, low latitudes of the tropical Pacific, the North Atlantic Subpolar Gyre, and the Arctic Ocean. On average, the ocean water cycle has amplified by approximately 5% since 1993, but strong regional variations exist (as well as dependency on the surface freshwater flux products chosen). Despite an intensified ocean water cycle in the last two decades, changes in surface salinity do not follow expected patterns of amplified salinity contrasts, challenging the perception that if it rains more the seas always get fresher and if it evaporates more the seas always get saltier. These findings imply a time of emergence of anthropogenic hydrological signals shorter in surface freshwater fluxes than in surface salinity and point to the importance of ocean circulation, salt transports, and natural climate variability in shaping patterns of decadal change in surface salinity. Therefore, the use of salinity measurements in conjunction with ocean salt fluxes can provide a more meaningful way of fingerprinting changes in the global water cycle on decadal time scales. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000404018600020 |
WOS关键词 | SURFACE-LAYER SALINITY ; FRESH-WATER ; GLOBAL PRECIPITATION ; HYDROLOGICAL CYCLE ; FUTURE CHANGES ; WORLD OCEAN ; CIRCULATION ; PACIFIC ; CLIMATE ; TRANSPORT |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
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/19846 |
专题 | 气候变化 |
作者单位 | 1.Cambridge Climate Inst, Boston, MA USA; 2.Atmospher & Environm Res, Lexington, MA USA |
推荐引用方式 GB/T 7714 | Vinogradova, Nadya T.,Ponte, Rui M.. In Search of Fingerprints of the Recent Intensification of the Ocean Water Cycle[J]. JOURNAL OF CLIMATE,2017,30(14). |
APA | Vinogradova, Nadya T.,&Ponte, Rui M..(2017).In Search of Fingerprints of the Recent Intensification of the Ocean Water Cycle.JOURNAL OF CLIMATE,30(14). |
MLA | Vinogradova, Nadya T.,et al."In Search of Fingerprints of the Recent Intensification of the Ocean Water Cycle".JOURNAL OF CLIMATE 30.14(2017). |
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