@article{fdi:010079978, title = {{R}e-initiating depth-discharge monitoring in small-sized ungauged watersheds by combining remote sensing and hydrological modelling : a case study in {M}adagascar}, author = {{A}ndriambeloson, {J}. {A}. and {P}aris, {A}. and {C}almant, {S}t{\'e}phane and {R}akotondraompiana, {S}.}, editor = {}, language = {{ENG}}, abstract = {{T}his work presents a practical approach to reconstructing past and present discharge and water depth time series for operational monitoring of small-sized ungauged watersheds using remotely sensed and freely accessible datasets in conjunction with hydrological models. {T}he methodology was applied to the {T}siribihina watershed in {M}adagascar. {M}ostly, satellite data are used, such as water levels from satellite altimetry missions and rainfall from the {A}frican {R}ainfall {C}limatology 2 product. {I}n contrast, the {M}odelo de {G}randes {B}acias is calibrated using historical discharge measurements to simulate distributed discharge in the basin. {R}ating curves are computed by crossing the altimetry information of water height with the simulated discharge outputs. {T}hese rating curves enable the conversion of water levels, discharge and depth interchangeably. {P}resent-day discharge and depth can thus be estimated in near real time with any update of satellite rainfall data and/or water level gained by altimetry missions currently flying in operational mode.}, keywords = {water level ; depth ; rainfall discharge model ; altimetry ; {T}siribihina ; {M}adagascar ; {MADAGASCAR} ; {TSIRIBIHINA}}, booktitle = {}, journal = {{H}ydrological {S}ciences {J}ournal : {J}ournal des {S}ciences {H}ydrologiques}, volume = {65}, numero = {16}, pages = {2709--2728}, ISSN = {0262-6667}, year = {2020}, URL = {https://www.documentation.ird.fr/hor/fdi:010079978}, }