共 45 条
Streamflow Intensification Driven by the Atlantic Multidecadal Oscillation (AMO) in the Atrato River Basin, Northwestern Colombia
被引:14
作者:
Loaiza Ceron, Wilmar
[1
,2
]
Kayano, Mary Toshie
[3
]
Andreoli, Rita Valeria
[4
]
Avila, Alvaro
[5
]
Canchala, Teresita
[6
]
Frances, Felix
[7
]
Rivera, Irma Ayes
[2
]
Alfonso-Morales, Wilfredo
[8
]
Ferreira de Souza, Rodrigo Augusto
[4
]
Carvajal-Escobar, Yesid
[9
]
机构:
[1] Univ Valle, Fac Humanities, Dept Geog, Calle 13 100-00, Cali 25360, Colombia
[2] Univ Estado Amazonas UEA, Postgrad Program CLIAMB, Inst Nacl Pesquisas Amazonia INPA, Ave Andre Araujo 2936, BR-69060001 Manaus, Amazonas, Brazil
[3] Ctr Previsao Tempo & Estudos Climat, Inst Nacl Pesquisas Espaciais, Div Modelagem & Desenvolvimento, Av Astronautas 1758, BR-12227010 Sao Jose Dos Campos, SP, Brazil
[4] Univ Estado Amazonas, Escola Super Tecnol, Av Darcy Vargas 1200,Parque 10 Novembro, BR-69065020 Manaus, Amazonas, Brazil
[5] Univ Fed Vicosa, Dept Agr Engn, BR-36570900 Vicosa, MG, Brazil
[6] Univ Valle, Sch Nat Resources & Environm Engn, Res Grp Water Resources Engn & Soil IREHISA, Calle 13 100-00, Cali 25360, Colombia
[7] Univ Politecn Valencia, Res Inst Water & Environm Engn IIAMA, Res Grp Hydrol & Environm Modelling GIMHA, E-46022 Valencia, Spain
[8] Univ Valle, Sch Elect & Elect Engn, Res Grp Percept & Intelligent Syst PSI, Calle 13 100-00, Cali 25360, Colombia
[9] Univ Valle, Engn Sch, Nat & Environm Resources Engn Sch EIDENAR, Calle 13 100-00, Cali 25360, Colombia
来源:
关键词:
Atlantic multidecadal oscillation;
climate variability;
streamflow;
rainfall;
Atrato River basin;
SEA-SURFACE TEMPERATURE;
NORTHERN SOUTH-AMERICA;
EL-NINO;
SEASONAL PRECIPITATION;
TROPICAL PACIFIC;
SUMMER RAINFALL;
CLIMATE;
ENSO;
CIRCULATION;
EXTREMES;
D O I:
10.3390/w12010216
中图分类号:
X [环境科学、安全科学];
学科分类号:
08 ;
0830 ;
摘要:
The impact of the Atlantic Multidecadal Oscillation (AMO) on the variations in the streamflow in the Atrato River Basin (ARB) during the 1965-2016 period was analyzed here by considering the cold (1965-1994) and warm (1995-2015) phases of this oscillation. The mean streamflow increased after 1994 (AMO phase change). This increase is related to the strengthening of the zonal gradients of the sea surface temperature (SST) and sea level pressure (SLP) between the tropical central Pacific and the tropical Atlantic after 1994 (warm AMO phase). These gradients contributed to strengthen the Walker cell related upward movement over northern and northwestern South America, in particular during November-December (ND). Consistently, the frequency (R20 mm) and intensity (SDII) of extreme daily rainfall events increased during the 1995-2015 period. Our results show a connection between the AMO and the increase in the streamflow in the ARB during the last five decades. These results contribute to the studies of resilience and climate adaptation in the region.
引用
收藏
页数:23
相关论文