Amazonian floodplain hydrodynamics: characterization and local modeling with in situ and remotely sensed data

Abstract

n the an asin the wetlands eseially fldlains (FPs are nsidered as idiversity htsts rdin t the fldulse net the FP esyste results in interatins etween hydrli hydrdynai and iheial resses Tday the anthreni ressures and liate hanes threaten these esystes T etter understand the interlay etween water and elial resses it is neessary t devel arriate dels wever the FP lare etensin and the aess diffiulty revent n atherin in sit data t uild a eneral delin fraewr ith its reent develents the rete sensin (S aears as an alternative t aass data ver FP This thesis investiates hw earth servatin data an e ressed t rdue relevant infratin fr hydrdynai delin in a ase f study (Janauaá ae an State rail The delin arah differs fr the revius nes erfred in the an rein the deled dain is the FP the ain hannel is intrdued as a undary nditin ( This arah yields t new hydraulis infratin (velity water irulatin flues watersurfae defratin (SD and ens new ersetives (elial delin nernin the ntriutin f S it an irve the uality f field data fill teralsatial as in field data surt the eneratin f hyrid data (in sit and satellitederived infratin ere the latter are used t uild u alirate and validate a D hrintal hydrdynai del (PO This thesis desries a systeati ethd that nuates field data and S (ltietry S and tial iaes saerne D t enerate a athyetri a twards hydrdynai studies n adated versin f the ethd withut any field data rdues D that an e used fr hydrlial urses The ileentatin f a hydrli del (UPFP allws detailin hydrli infratin (suh as lal hydrly and lal water iture and nstrutin flw s The f waterlevels ( tye are dedued fr hyrid data (altietry ined with in sit ertial auray is assessed un in sit and altietry The hrintal auray is ntrlled aainst satellitederived fld etents The FP hannels are essential t rretly siulate fldin and flushin Siulatin stresses ut d vertial and hrintal auraies f siulatins are nt suffiient t ensure a d uantifiatin f river FP ehaned flues ydrdynais siulatin is a asis t desrie the water irulatin atterns durin a hydrlial year The del sueeds in retrievin served irulatin seifiities suh as the inversin f flwin in a nnetin hannel The del als redits the veran flw is driven diretly twards the nnetin hannel rein in a t the ainstrea t a finer reslutin the hydrdynais siulatin is als a asis t study FP SD relative t the future SOT issin s the urrent reisin f anillary (altietry and in sit data is nt suffiient t study suh a henena delled SD are an alternative nvestiatins hihliht satial and teral variatins aln a hydrli year The del redits irtant SD in the nnetin hannel (u t n the rest f the FP the SD reain elw The windy nditins rly iat the SD t hihwaters n wind iat is deteted t lwwaters wind iats see t e inferir t defratin attriuted t lal water inut Further wrs need t e ursued D siulatin ver the Janauaá FP desried thruh a unstaered rid r elial delin Other investiatins shuld als e ursued t interate urrent and future S (SOT issin Sentinel serie with hydrdynai dels Sheas suh data assiilatin shuld e systeatially ileented in hydrdynai dels