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DOI | 10.1073/pnas.1921266117 |
The changing physical and ecological meanings of North Pacific Ocean climate indices | |
Litzow, Michael A.1; Hunsicker, Mary E.2; Bond, Nicholas A.3; Burke, Brian J.4; Cunningham, Curry J.5; Gosselin, Jennifer L.6; Norton, Emily L.3; Ward, Eric J.4; Zador, Stephani G.7 | |
2020-04-07 | |
发表期刊 | PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA |
ISSN | 0027-8424 |
出版年 | 2020 |
卷号 | 117期号:14页码:7665-7671 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Climate change is likely to change the relationships between commonly used climate indices and underlying patterns of climate variability, but this complexity is rarely considered in studies using climate indices. Here, we show that the physical and ecological conditions mapping onto the Pacific Decadal Oscillation (PDO) index and North Pacific Gyre Oscillation (NPGO) index have changed over multidecadal timescales. These changes apparently began around a 1988/1989 North Pacific climate shift that was marked by abrupt northeast Pacific warming, declining temporal variance in the Aleutian Low (a leading atmospheric driver of the PDO), and increasing correlation between the PDO and NPGO patterns. Sea level pressure and surface temperature patterns associated with each climate index changed after 1988/1989, indicating that identical index values reflect different states of basinscale climate over time. The PDO and NPGO also show time-dependent skill as indices of regional northeast Pacific ecosystem variability. Since the late 1980s, both indices have become less relevant to physical-ecological variability in regional ecosystems from the Bering Sea to the southern California Current. Users of these climate indices should be aware of nonstationary relationships with underlying climate variability within the historical record, and the potential for further nonstationarity with ongoing climate change. |
英文关键词 | climate change climate index nonstationary relationship North Pacific Gyre Oscillation Pacific Decadal Oscillation |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000524486300024 |
WOS关键词 | SEA-SURFACE TEMPERATURE ; EL-NINO ; WHEAT YIELDS ; VARIABILITY ; RESPONSES ; IMPACTS ; MARINE ; OSCILLATION ; PATTERNS ; FISH |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
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/249629 |
专题 | 资源环境科学 |
作者单位 | 1.Univ Alaska Fairbanks, Coll Fisheries & Ocean Sci, Kodiak, AK 99615 USA; 2.Natl Marine Fisheries Serv, Northwest Fisheries Sci Ctr, Newport, OR 97365 USA; 3.Univ Washington, Joint Inst Study Atmosphere & Ocean, Seattle, WA 98105 USA; 4.Natl Marine Fisheries Serv, Northwest Fisheries Sci Ctr, Seattle, WA 98112 USA; 5.Univ Alaska Fairbanks, Coll Fisheries & Ocean Sci, Juneau, AK 99801 USA; 6.Univ Washington, Sch Aquat & Fishery Sci, Seattle, WA 98105 USA; 7.Natl Marine Fisheries Serv, Alaska Fisheries Sci Ctr, Seattle, WA 98115 USA |
推荐引用方式 GB/T 7714 | Litzow, Michael A.,Hunsicker, Mary E.,Bond, Nicholas A.,et al. The changing physical and ecological meanings of North Pacific Ocean climate indices[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2020,117(14):7665-7671. |
APA | Litzow, Michael A..,Hunsicker, Mary E..,Bond, Nicholas A..,Burke, Brian J..,Cunningham, Curry J..,...&Zador, Stephani G..(2020).The changing physical and ecological meanings of North Pacific Ocean climate indices.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,117(14),7665-7671. |
MLA | Litzow, Michael A.,et al."The changing physical and ecological meanings of North Pacific Ocean climate indices".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 117.14(2020):7665-7671. |
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