Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2018GL077458 |
Predicting Spatial Patterns in Precipitation Isotope (delta H-2 and delta O-18) Seasonality Using Sinusoidal Isoscapes | |
Allen, Scott T.1,2; Kirchner, James W.1,3; Goldsmith, Gregory R.2,4 | |
2018-05-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2018 |
卷号 | 45期号:10页码:4859-4868 |
文章类型 | Article |
语种 | 英语 |
国家 | Switzerland; USA |
英文摘要 | Understanding how precipitation isotopes vary spatially and temporally is important for tracer applications. We tested how well month-to-month variations in precipitation delta O-18 and delta H-2 were captured by sinusoidal cycles, and how well spatial variations in these seasonal cycles could be predicted, across Switzerland. Sine functions representing seasonal cycles in precipitation isotopes explained between 47% and 94% of the variance in monthly delta O-18 and delta H-2 values at each monitoring site. A significant sinusoidal cycle was also observed in line-conditioned excess. We interpolated the amplitudes, phases, and offsets of these sine functions across the landscape, using multiple linear regression models based on site characteristics. These interpolated maps, here referred to as a sinusoidal isoscape, reproduced monthly observations with prediction errors that were smaller than or similar to those of other isoscapes. Sinusoidal isoscapes are likely broadly useful because they concisely describe seasonal isotopic behavior and can be estimated efficiently from sparse or irregular data. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000435262000037 |
WOS关键词 | YOUNG WATER FRACTIONS ; MEAN TRANSIT TIMES ; ENVIRONMENTAL SYSTEMS ; DEUTERIUM EXCESS ; STABLE-ISOTOPES ; LONG-TERM ; AGGREGATION ; MOISTURE |
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/25847 |
专题 | 气候变化 |
作者单位 | 1.Swiss Fed Inst Technol, Dept Environm Syst Sci, Zurich, Switzerland; 2.Paul Scherrer Inst, Lab Atmospher Chem, Ecosyst Fluxes Grp, Villigen, Switzerland; 3.Swiss Fed Res Inst WSL, Birmensdorf, Switzerland; 4.Chapman Univ, Schmid Coll Sci & Technol, Orange, CA USA |
推荐引用方式 GB/T 7714 | Allen, Scott T.,Kirchner, James W.,Goldsmith, Gregory R.. Predicting Spatial Patterns in Precipitation Isotope (delta H-2 and delta O-18) Seasonality Using Sinusoidal Isoscapes[J]. GEOPHYSICAL RESEARCH LETTERS,2018,45(10):4859-4868. |
APA | Allen, Scott T.,Kirchner, James W.,&Goldsmith, Gregory R..(2018).Predicting Spatial Patterns in Precipitation Isotope (delta H-2 and delta O-18) Seasonality Using Sinusoidal Isoscapes.GEOPHYSICAL RESEARCH LETTERS,45(10),4859-4868. |
MLA | Allen, Scott T.,et al."Predicting Spatial Patterns in Precipitation Isotope (delta H-2 and delta O-18) Seasonality Using Sinusoidal Isoscapes".GEOPHYSICAL RESEARCH LETTERS 45.10(2018):4859-4868. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论