Observed trends in indices of daily temperature extremes in South America 1960-2000

被引：309

作者：

Vincent, LA

Peterson, TC

Barros, VR

Marino, MB

Rusticucci, M

Carrasco, G

Ramirez, E

Alves, LM

Ambrizzi, T

Berlato, MA

Grimm, AM

Marengo, JA

Molion, L

Moncunill, DF

Rebello, E

Anunciaçao, YMT

Quintana, J

Santos, JL

Baez, J

Coronel, G

Garcia, J

Trebejo, I

Bidegain, M

Haylock, MR

Karoly, D

机构：

[1] Meteorol Serv Canada, Downsview, ON M3H 5T4, Canada

[2] NOAA, Natl Climat Datat Ctr, Asheville, NC USA

[3] Univ Buenos Aires, Fac Ciencias Exactas & Nat, Dept Ciencias Atmosfer & Oceanos, Buenos Aires, DF, Argentina

[4] Banco Nacl Datos, Serv Meteorol Nacl, Buenos Aires, DF, Argentina

[5] Serv Nacl Meteorol & Hidrol, La Paz, Bolivia

[6] UMSA, Ins tHidraul & Hidrol, San Andres, Bolivia

[7] Inst Nacl Pesquisas Espaciais, Ctr Previsao Tempo & Estudos Climaticos, Cachoeira Paulista, Brazil

[8] Univ Sao Paulo, Sao Paulo, Brazil

[9] Univ Fed Rio Grande do Sul, BR-90046900 Porto Alegre, RS, Brazil

[10] Univ Fed Parana, Parana, Brazil

[11] Univ Fed Alagoas, Alagoas, Brazil

[12] FUNCEME, Fortaleza, Ceara, Brazil

[13] Inst Nacl Meteorol, Brasilia, DF, Brazil

[14] Direcc Meteorol Chile, Santiago, Chile

[15] Escuela Super Politecn Litoral, Fac Marine Sci, Quito, Ecuador

[16] DINAC, Luque, Paraguay

[17] Univ Nacl Asuncion, San Lorenzo, Paraguay

[18] Univ Nacl Agr La Molina, Lima, Peru

[19] Serv Nacl Meteorol & Hidrol, Lima, Peru

[20] Univ Republica, Fac Ciencias, Montevideo, Uruguay

[21] Univ E Anglia, Climat Res Unit, Norwich NR4 7TJ, Norfolk, England

[22] Univ Oklahoma, Norman, OK 73019 USA

来源：

JOURNAL OF CLIMATE | 2005年 / 18卷 / 23期

关键词：

D O I：

10.1175/JCLI3589.1

中图分类号：

P4 [大气科学（气象学）];

学科分类号：

0706 ; 070601 ;

摘要：

A workshop on enhancing climate change indices in South America was held in Maceio, Brazil, in August 2004. Scientists from eight southern countries brought daily climatological data from their region for a meticulous assessment of data quality and homogeneity, and for the preparation of climate change indices that can be used for analyses of changes in climate extremes. This study presents an examination of the trends over 1960 - 2000 in the indices of daily temperature extremes. The results indicate no consistent changes in the indices based on daily maximum temperature while significant trends were found in the indices based on daily minimum temperature. Significant increasing trends in the percentage of warm nights and decreasing trends in the percentage of cold nights were observed at many stations. It seems that this warming is mostly due to more warm nights and fewer cold nights during the summer (December February) and fall (March - May). The stations with significant trends appear to be located closer to the west and east coasts of South America.

引用

页码：5011 / 5023

页数：13

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