التفاصيل البيبلوغرافية
| العنوان: |
The Mann-Kendall test: the need to consider the interaction between serial correlation and trend |
| المؤلفون: |
Blain, Gabriel Constantino |
| المصدر: |
Acta Scientiarum. Agronomy. December 2013 35(4) |
| بيانات النشر: |
Editora da Universidade Estadual de Maringá - EDUEM, 2013. |
| سنة النشر: |
2013 |
| مصطلحات موضوعية: |
Monte Carlo experiments, auto-correlated series, climate change, Pre-whitening |
| الوصف: |
Pre-whitening approaches have been widely used to remove the influence of serial correlations on the Mann-Kendall trend test (MK_prew). However, previous studies indicate that this procedure may lead to a false reduction of the significance of a trend. An alternative approach (MK_interact) has been proposed to improve the assessment of the significance of a trend in auto-correlated data. Therefore, the present study compared the performance of the MK_prew and MK_interact for detecting trends in auto-correlated series. Sets of Monte Carlo experiments were carried out to evaluate the occurrence of type I and II errors obtained from both approaches. The analyses were also based on 10-day values of the difference between precipitation and potential evapotranspiration (P-EP) obtained from the location of Campinas, State of São Paulo, Brazil. The results found in this study allow us to conclude that the MK_interac outperformed the MK_prew in correctly identifying the significance of trends and that, concerning agricultural interests, the decreasing trend described by the MK_interac during the beginning of the crop growing seasons may reveal an unfavorable temporal distribution of the P-EP values. |
| نوع الوثيقة: |
article |
| وصف الملف: |
text/html |
| اللغة: |
English |
| تدمد: |
1807-8621 |
| DOI: |
10.4025/actasciagron.v35i4.16006 |
| URL الوصول: |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1807-86212013000400001 |
| Rights: |
info:eu-repo/semantics/openAccess |
| رقم الانضمام: |
edssci.S1807.86212013000400001 |
| قاعدة البيانات: |
SciELO |