In this studied were analyzed the streamflow and rainfall of the "Alto Teles Pires Watershed", northern Brazil, in the period from 1977 to 2009.H11G-0934

GROPPO, J.

PELLEGRINO, G.

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09/02/15 2014 AGU Fall Meetinghttps://agu.confex.com/agu/fm14/meetingapp.cgi#Paper/2546 1/1 Monday, December 15, 2014 08:00 AM - 12:20 PMMoscone WestPoster HallIn recent decades the development of urban, industrial and agricultural activities, has led to asignificant increase in water demand and decrease in both water quantity and quality inworldwide. Trends analysis is an important for the environmental diagnosis in watersheds,allowing evaluate how water bodies are responding through the years the growinganthropogenic interventions. The methodology is divided in graphical analysis and applicationof trend tests, where initially an exploratory analysis of data is performed, followed byconfirmation through statistical tests. In this studied were analyzed the streamflow andrainfall of the “Alto Teles Pires Watershed”, northern Brazil, in the period from 1977 to 2009.The Mann Kendall and Pettitt test were used to trends analysis and abrupt changes in themean, respectively. The results showed in the ten rainfall stations studied significant negativetrend mainly between May and July, but abrupt change was not observed. The streamflowalso showed the significant negative trend in the three stations studied, with statisticallysignificant changes, mainly in dry season. In addition to decreasing rainfall, the rapidpopulation growth plus the increase of grain crops, has led to an appreciable increase inwater consumption in the watershed for urban supply and irrigation, what is probably this factthat can be felt in the drier months in the streamflow. This watershed still do not suffer fromthe water problem, but if to keep increasing consumption plus the possible impacts ofclimatic changes, without prior and appropriate planning, which can be obtained, thewatershed could suffer future problems regarding of water.AuthorsJuliano GroppoEMBRAPA Brazilian Agricultural Research CorportationGiampaolo PellegrinoEMBRAPA Brazilian Agricultural Research CorportationView Related EventsSession: Surface Hydrology PostersSection/Focus Group: HydrologyDay: Monday, December 15, 2014H11G-0934 Trend Analysis of Rainfall and Streamflow in "Alto Teles Pires Watershed",Northern Brazil

Trend analysis of rainfall and streamflow in "Alto Teles Pires Watershed", northern Brazil.

http://www.alice.cnptia.embrapa.br/alice/bitstream/doc/1008224/1/TrendGroppo.pdf

Trend analysis of rainfall and streamflow in "Alto Teles Pires Watershed", northern Brazil.

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