Year: 2013
Type: article
Abstract: Fresh water resources are critical for daily human consumption.Therefore, a continuous monitoring effort over their quantity and quality is instrumental.One important model for water quantity monitoring is the rainfall-runoff model, which represents the response of a watershed to the variability of precipitation, thus estimating the discharge of a channel (Bedient and Huber, 2002, Beven, 2012).Remote sensing and satellite geodetic observations are capable to provide critical hydrological parameters, the preferred input forcing for the model, given the thorough evaluation of its relationship with field-measured precipitation data prior to its use as primary climatic forcing.This research also proposes a novel approach to process the TRMM precipitation estimation spatially through Thiessen polygon and area average hybrid method, which model the spatial distribution of TRMM data to match the spatial location of field meteorological stations.Through a simultaneous validation that compares the water level anomaly transformed from HEC-HMS simulated discharge and satellite altimetry measurement, this study found that satellite altimetry measures water level anomaly closer to the true water level anomaly than the water level anomaly converted from HEC-HMS simulated discharge.Some critical recommendations for future studies include the use of waveform shape selection procedure in the satellite altimetry based water level measurement of small and medium-sized rivers and small lakes, as well as the exploration to implement data assimilation between satellite altimetry and the hydrologic model for better discharge and water level estimations.
Author: Yohanes Budi Sulistioadi
Institution: The Ohio State University
Language: English
Subfield: Water Science and Technology
Field: Environmental Science
Domain: Physical Sciences
Open Access status: green
Awards: INSAR HAS BEEN USED TO DETECT TIDAL MOTION ALONG THE RIVER REACHES AND OVER SEA ICE AND ICE SHELVES. HOWEVER, THE COMPREHENSIVE MODELING OF OCEAN TID, LOW LYING DELTAS OF THE HINDU KUSH HIMALAYAN (HKH) REGION ARE VULNERABLE TO WATER RESOURCES AVAILABILITY THAT OFTEN MANIFESTS AS SHORTAGE (DROUGHT OR
OpenAlex ID: W2264486151