TY  - SER
AU  - Mah,Youn Chin
AU  - Radok,Rainer
AU  - Huynh,Ngoc Phien
AU  - Le Huu Ti
ED  - The Government of Australia, 
TI  - Long range forecasting of Mekong River streamflow
T2  - Special studies project report
PY  - 1982///
CY  - Bangkok
PB  - Asian Institute of Technology
KW  - Hydrological forecasting
N1  - A special study submitted in partial fulfillment of the requirements for the degree of Master of Science, School of Engineering and Technology; Special Studies Project Report (M. Sc.) - Asian Institute of Technology, 1982
N2  - Daily river streamflows at one station (Vientiane) along the Mekong River are studied using a historical approach to obtain a long range flood forecast, with the objective of over-coming short-term hydrological uncertainty and the narrow limitations in time of process- based models. Only daily discharge data are used in the present approach . Sixty  years of data are considered as one continuous time series; a suitable linear filter is applied to separate short period variations due to rain storms from the main hydrograph . Cross-correlation coefficients between all years are computed and arranged in the upper triangle of a matrix. This matrix is then used to identify the groupings of years of closest correlation or 'fit' to each other. Given the first few months of a year, the group  which best fits a current flood season can be identified by used cross-correlation coefficients . It is proposed to use the average filtered hydrograph of that groups to forecast the future of the on-going season. Apart from the mean curve, the short period residues, filtered from the original curves, are analyzed statistically . The frequencies and return periods of these residue heights are used for short term forecasting
UR  - http://203.159.5.9/ait-thesis/detail.php?q=B21060
ER  -