SEA SURFACE TEMPERATURE (SST) AND RAINFALL EROSIVITY IN THE UPPER GRANDE RIVER BASIN, SOUTHEAST BRAZIL

被引：48

作者：

de Mello, Carlos Rogerio ^{[1
]}

Norton, Lloyd Darrell ^{[2
]}

Curi, Nilton ^{[3
]}

Monteiro Yanagi, Silvia Nazare ^{[1
]}

机构：

[1] Univ Fed Lavras UFLA, Dept Engn DEG, BR-37200000 Lavras, MG, Brazil

[2] Purdue Univ, USDA ARS, Natl Soil Eros Res Lab, W Lafayette, IN 47907 USA

[3] Univ Fed Lavras UFLA, DCS, BR-37200000 Lavras, MG, Brazil

来源：

CIENCIA E AGROTECNOLOGIA | 2012年 / 36卷 / 01期

关键词：

Soil erosion; El-Nino; La-Nina; Grande River basin; EL-NINO; WATER-RESOURCES; OSCILLATION; PATTERNS; LINKS; ENSO;

D O I：

10.1590/S1413-70542012000100007

中图分类号：

S [农业科学];

学科分类号：

09 ;

摘要：

Relationships between regional climates and oceanic and atmospheric anomalies are important in understanding the rainfall regime of a given region. This work aimed to analyze rainfall erosivity in the Upper Grande River Basin, Southern Minas Gerais State, Brazil; namely the two most representative environments, the Mantiqueira Range (MR) and the Plateau of Campos das Vertentes (PCV). These areas can be affected by the El Nino Southern Oscillation (ENSO) phenomena, which can be evaluated by indicators such as Sea Surface Temperature (SST) for the Nino 3.4 Region. Rainfall erosivity was calculated for individual rainfall events from January, 2006 to December, 2010. Pearson's coefficient of correlation was used to evaluate the relationships between rainfall variables and SST. The coefficients of correlation were significant for both sub-regions. Correlations between the rainfall variables and negative oscillations of SST were also significant, especially in the MR sub-region, however, the Person's coefficients were lower than those obtained for the SST positive oscillations. These results demonstrate that El-Nino phenomenon can be considered an important factor in the intense rainfall behavior of the Upper Grande River Basin.

引用

页码：53 / 59

页数：7

共 26 条

[11]

[12] Trends in total and extreme South American rainfall in 1960-2000 and links with sea surface temperature [J].

Haylock, MR ;

Peterson, TC ;

Alves, LM ;

Ambrizzi, T ;

Anunciaçao, YMT ;

Baez, J ;

Barros, VR ;

Berlato, MA ;

Bidegain, M ;

Coronel, G ;

Corradi, V ;

Garcia, VJ ;

Grimm, AM ;

Karoly, D ;

Marengo, JA ;

Marino, MB ;

Moncunill, DF ;

Nechet, D ;

Quintana, J ;

Rebello, E ;

Rusticucci, M ;

Santos, JL ;

Trebejo, I ;

Vincent, LA .

JOURNAL OF CLIMATE, 2006, 19 (08) :1490-1512

[13] El Nino-Southern Oscillation and water resources in the headwaters region of the Yellow River: links and potential for forecasting [J].

Lue, A. ;

Jia, S. ;

Zhu, V. ;

Yan, H. ;

Duan, S. ;

Yao, Z. .

HYDROLOGY AND EARTH SYSTEM SCIENCES, 2011, 15 (04) :1273-1281

[14]

Montebeller Claudinei A., 2007, Eng. Agríc., V27, P426, DOI 10.1590/S0100-69162007000300011

[15]

Nel W, 2010, WATER SA, V36, P509

[16]

Paula Gizelli Moiano de, 2010, Rev. Bras. Ciênc. Solo, V34, P1315

[17]

PERON AJ, 1986, CIENCIA PRATICA, V10, P282

[18]

Reboita Michelle Simões, 2010, Rev. bras. meteorol., V25, P185, DOI 10.1590/S0102-77862010000200004

[19] Changes of erosive rainfall for El Nino and La Nina years in the northern Andean highlands of Peru [J].

Romero, Consuelo C. ;

Baigorria, Guillermo A. ;

Stroosnijder, Leo .

CLIMATIC CHANGE, 2007, 85 (3-4) :343-356

[20]

Ropelewski CF, 1989, J CLIMATE, V2, P268, DOI 10.1175/1520-0442(1989)002<0268:PPAWTH>2.0.CO

← 1 2 3 →