Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2020GL086984 |
Dynamic Sea Level Variability Due to Seasonal River Discharge: A Preliminary Global Ocean Model Study | |
Piecuch, Christopher G.1; Wadehra, Riley2 | |
2020-02-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2020 |
卷号 | 47期号:4 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | River discharge R is an important driver of the coastal ocean circulation. However, the influence of variable R effects on large-scale sea level zeta related to ocean dynamics is not well understood. We perform numerical experiments using a coarse (similar to 1 degrees) global ocean state estimate to quantify R effects on the seasonal cycle in dynamic zeta over the global ocean. Forcing by R drives substantial dynamic zeta signals (greater than or similar to 1 cm) on regional scales around major rivers (e.g., Amazon, Ganges, Brahmaputra, Irrawaddy, Ob, Lena, and Yenisei). Modeled zeta changes largely reflect halosteric (salinity) effects, which are partly affected by transport processes involving planetary waves and advection. The modeled zeta response to R is informative for interpreting zeta observations from satellite altimetry and tide gauges, explaining 10-20% of the regional-scale seasonal data variance around some major rivers. Future zeta studies should consider finer-resolution models and R forcing on nonseasonal time scales of relevance to climate. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000529120100020 |
WOS关键词 | WATER STORAGE ; COASTAL ; CLIMATE ; RUNOFF ; DATASET ; VOLUME ; PLUME ; CYCLE ; BAY |
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/279655 |
专题 | 气候变化 |
作者单位 | 1.Woods Hole Oceanog Inst, Woods Hole, MA 02543 USA; 2.Colorado Coll, Colorado Springs, CO 80903 USA |
推荐引用方式 GB/T 7714 | Piecuch, Christopher G.,Wadehra, Riley. Dynamic Sea Level Variability Due to Seasonal River Discharge: A Preliminary Global Ocean Model Study[J]. GEOPHYSICAL RESEARCH LETTERS,2020,47(4). |
APA | Piecuch, Christopher G.,&Wadehra, Riley.(2020).Dynamic Sea Level Variability Due to Seasonal River Discharge: A Preliminary Global Ocean Model Study.GEOPHYSICAL RESEARCH LETTERS,47(4). |
MLA | Piecuch, Christopher G.,et al."Dynamic Sea Level Variability Due to Seasonal River Discharge: A Preliminary Global Ocean Model Study".GEOPHYSICAL RESEARCH LETTERS 47.4(2020). |
条目包含的文件 | 条目无相关文件。 |
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