Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017GL076226 |
Artifacts in Century-Length Atmospheric and Coupled Reanalyses Over Antarctica Due To Historical Data Availability | |
Schneider, David P.1; Fogt, Ryan L.2,3 | |
2018-01-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2018 |
卷号 | 45期号:2页码:964-973 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Enabled by advances in data assimilation and the digitization of historical observations, atmospheric reanalysis products that span the entire twentieth century provide valuable gridded data over the sparsely observed high-latitude Southern Hemisphere. Here austral summer and winter surface pressure trends in three reanalyses are compared to trends in a statistically based pressure reconstruction, trends in atmospheric models without data assimilation, and estimates of uncertainty from the reanalyses. In austral summer during the early twentieth century, the reanalyses underestimate the depth of the circumpolar trough, leading to erroneously high pressure values over the region. Around 1950, a rapid increase in the number of assimilated pressure observations leads to a dramatic reduction in the reanalyses standard error and a spurious drop in the surface pressure. A more likely history of the surface pressure over this region is provided by the reconstruction, which is consistent with the model simulations without data assimilation. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000425514300054 |
WOS关键词 | SEASONAL PRESSURE RECONSTRUCTIONS ; SURFACE PRESSURE ; SEA-ICE ; TRENDS ; 20TH-CENTURY ; TEMPERATURE ; ENSEMBLE ; CLIMATE ; CMIP5 |
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/26776 |
专题 | 气候变化 |
作者单位 | 1.Natl Ctr Atmospher Res, Climate & Global Dynam Lab, POB 3000, Boulder, CO 80307 USA; 2.Ohio Univ, Dept Geog, Athens, OH 45701 USA; 3.Ohio Univ, Scalia Lab Atmospher Anal, Athens, OH 45701 USA |
推荐引用方式 GB/T 7714 | Schneider, David P.,Fogt, Ryan L.. Artifacts in Century-Length Atmospheric and Coupled Reanalyses Over Antarctica Due To Historical Data Availability[J]. GEOPHYSICAL RESEARCH LETTERS,2018,45(2):964-973. |
APA | Schneider, David P.,&Fogt, Ryan L..(2018).Artifacts in Century-Length Atmospheric and Coupled Reanalyses Over Antarctica Due To Historical Data Availability.GEOPHYSICAL RESEARCH LETTERS,45(2),964-973. |
MLA | Schneider, David P.,et al."Artifacts in Century-Length Atmospheric and Coupled Reanalyses Over Antarctica Due To Historical Data Availability".GEOPHYSICAL RESEARCH LETTERS 45.2(2018):964-973. |
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