| Session Details | |
| Section | HS - Hydrological Sciences |
| Session Title | Challenges in Hydrologic Modeling |
| Main Convener | Prof. Bellie Sivakumar (University of New South Wales, Australia) |
| Co-convener(s) | Dr. Shie-Yui Liong (National University of Singapore, Singapore) Dr. Chavalit Chaleeraktrakoon (Thammasat University, Thailand) |
| Session Description | Hydrology has seen an enormous growth during the past few decades, largely facilitated by our technological and methodological advances. Despite this growth, there remain numerous challenges in performing hydrologic teaching, research, and practice. Among the issues presently dominating debates and discussions are: (1) most current hydrologic models are highly complex, but they do not perform well even for the same situations they are developed; (2) there are far too many models and comparisons for small-scale problems, but very little emphasis on large-scale hydrologic challenges; (3) hydrologic modeling is impeded by the lack of an integrated and generalization framework; (4) our knowledge about the role of global climate change on hydrology and water resources is rather limited; and (5) there continue to be significant gaps between hydrologic models and real catchments. These issues are being addressed in many different forms in the hydrologic literature: parameter estimation and uncertainty, dominant processes concept (DPC) and model simplification, model integration, catchment classification framework, scaling and downscaling, remote sensing and geographic information system (GIS) for data measurements, and predictions in ungaged basins (PUB). Despite the advances in each of these areas, cohesive efforts to bring these mostly disparate forms together towards finding common grounds in hydrologic teaching, research, and practice are clearly lacking. This session is intended to provide a collective perspective on these issues. Abstracts that address the supplementary and complementary role of each of these issues with respect to the others and also their integration are particularly encouraged. |