DEALING WITH SUBJECTIVITY IN WEIGHT DETERMINATION: Climate Vulnerability Indicators

Código

XXIII-SBRH1430

Autores

Luis Miguel Samussone Tomas Buchir, DANIEL HENRIQUE MARCO DETZEL, Miriam Rita Moro Mine, Regina Tiemy Kishi, Marcelo Rodrigues Bessa, Cristovão Vicente Scapulatempo Fernandes

Tema

10 - Hidrometeorologia, Mudanças Climáticas e Impactos nos Recursos Hídricos

Resumo

This paper aims to propose an appropriate method to avoid subjectivity in weight determination, especially in the climatic vulnerability assessment, where the weight of each indicator plays a very important role due to the difference in the impact of these indicators on the system. The weight can be determinate assuming that each indicator/component contributes evenly or unevenly. Thus, here the Iyengar and Sudarshan method is proposed as an answer to deal with these subjectivities. This method will help to validate the overall indicators at the national level, taking into account the difference between the systems and the quality of the data available. The method is acceptable because the results show that the variation of one indicator does not interfere incorrectly in the contribution of the remaining indicators. Therefore, it is a useful tool to deal with issues of subjectivity in climate vulnerability assessment.