Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.3354/cr01565 |
Adriatic-Ionian air temperature and precipitation patterns derived from self-organizing maps: relation to hemispheric indices | |
Matic, Frano1; Kalinic, Hrvoje2; Vilibic, Ivica1; Grbec, Branka1; Morozin, Karla3 | |
2019 | |
发表期刊 | CLIMATE RESEARCH
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ISSN | 0936-577X |
EISSN | 1616-1572 |
出版年 | 2019 |
卷号 | 78期号:2页码:149-163 |
文章类型 | Article |
语种 | 英语 |
国家 | Croatia |
英文摘要 | Normalized anomalies in air temperature and precipitation patterns derived from monthly data series collected at 28 in situ meteorological stations in the Adriatic-Ionian region between 1961 and 2015 were mapped by using the self-organizing map (SOM) method-an unsupervised neural network method -and connected with hemispheric indices in the atmosphere. Four indices were used: North Atlantic Oscillation (NAO), East Atlantic (EA), East Atlantic/West Russia (EAWR) and Scandinavian (SCA). Two experiments were conducted: the first combined normalized temperature anomalies with the indices, and the second combined normalized precipitation anomalies with the indices. Precipitation data better fit the SOM model than temperature data, while the SOM model has the best performance at a 3 x 3 matrix size. Region-wide negative precipitation anomalies are related to a combination of positive NAO and EAWR, and negative SCA indices, and vice versa. Positive air temperature anomalies are related to the positive EA index and vice versa. The mapped relations between the NAO index and precipitation anomalies indicate a nonlinear connection, because positive index values resemble 2 different precipitation patterns. The SOM-based nonlinear clustering might be useful in determining and forecasting precipitation and air temperature patterns from hemispheric indices. |
英文关键词 | Self-organizing maps Air temperature Precipitation Hemispheric indices Central Mediterranean |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000482744300004 |
WOS关键词 | NORTH-ATLANTIC OSCILLATION ; CLIMATE REGIME SHIFTS ; MEDITERRANEAN PRECIPITATION ; WATER-RESOURCES ; DECADAL TRENDS ; HEAT WAVES ; VARIABILITY ; EXTREMES ; BLOCKING ; EVENTS |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; 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/181266 |
专题 | 气候变化 |
作者单位 | 1.Inst Oceanog & Fisheries, Split 21000, Croatia; 2.Univ Split, Fac Sci, Split 21000, Croatia; 3.Univ Split, Dept Marine Studies, Split 21000, Croatia |
推荐引用方式 GB/T 7714 | Matic, Frano,Kalinic, Hrvoje,Vilibic, Ivica,et al. Adriatic-Ionian air temperature and precipitation patterns derived from self-organizing maps: relation to hemispheric indices[J]. CLIMATE RESEARCH,2019,78(2):149-163. |
APA | Matic, Frano,Kalinic, Hrvoje,Vilibic, Ivica,Grbec, Branka,&Morozin, Karla.(2019).Adriatic-Ionian air temperature and precipitation patterns derived from self-organizing maps: relation to hemispheric indices.CLIMATE RESEARCH,78(2),149-163. |
MLA | Matic, Frano,et al."Adriatic-Ionian air temperature and precipitation patterns derived from self-organizing maps: relation to hemispheric indices".CLIMATE RESEARCH 78.2(2019):149-163. |
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