Konhee Lee

This catchment-based lake and river routing product combines catchment polygons from the HydroBASINS product (Lehner and Grill, 2013) and lakes from the HydroLAKES product (Messager et al., 2016) to obtain pan-Canadian routing products that consider lakes. In total, ten routing products are developed within this work, using five watershed delineations (HydroBASINS product from level 8 to level 12) and two lake-selection strategies (all lakes in HydroLAKES and only lakes with an area larger than 1 km<sup>2</sup>). All routing products cover all of Canada. This catchment-based lake and river routing product combines catchment polygons from the HydroBASINS product (Lehner and Grill, 2013) and lakes from the HydroLAKES product (Messager et al., 2016) to obtain pan-Canadian routing products that consider lakes. In total, ten routing products are developed within this work, using five watershed delineations (HydroBASINS product from level 8 to level 12) and two lake-selection strategies (all lakes in HydroLAKES and only lakes with an area larger than 1 km<sup>2</sup>). All routing products cover all of Canada. Please refer to the <em>"Readme routing projects.pdf"</em> for a more detailed description of the routing products as well as the introduction of an example. The example files can be found in <em>"Example.zip"</em> while the actual routing products are available in <em>"Routing_product.zip"</em>. For any questions please contact: Ming Han (ming.han@uwaterloo.ca)

This catchment-based lake and river routing product combines catchment polygons from the HydroBASINS product (Lehner and Grill, 2013) and lakes from the HydroLAKES product (Messager et al., 2016) to obtain pan-Canadian routing products that consider lakes. In total, ten routing products are developed within this work, using five watershed delineations (HydroBASINS product from level 8 to level 12) and two lake-selection strategies (all lakes in HydroLAKES and only lakes with an area larger than 1 km<sup>2</sup>). All routing products cover all of Canada. This catchment-based lake and river routing product combines catchment polygons from the HydroBASINS product (Lehner and Grill, 2013) and lakes from the HydroLAKES product (Messager et al., 2016) to obtain pan-Canadian routing products that consider lakes. In total, ten routing products are developed within this work, using five watershed delineations (HydroBASINS product from level 8 to level 12) and two lake-selection ...

Abstract A general formulation of a surface water hydrological model is posed that enables multiple numerical schemes, model structures, discretization schemes, and interpolation approaches to be tested, compared, and/or used for assessment of structural uncertainty and algorithm skill. This formulation is the basis for the object-oriented and open source hydrological modelling framework Raven. Raven is uniquely capable of fully emulating and then modifying or extending a number of existing hydrological models of differing design, including the UBC watershed model, GR4J, MOHYSE, HMETS, and HBV-EC. More than 100 compatible process algorithm options and more than 80 interchangeable options for both routing and the estimation of forcings support the testing of trillions of possible model configurations. It supports general spatial discretization, including grids, subbasin/hydrologic response units, lumped, or triangulated irregular network models. Raven’s utility for examining the impact of model choices and sensitivity to structural model uncertainty is demonstrated with a set of simple test cases.

Lakes and reservoirs have critical impacts on hydrological, biogeochemical, and ecological processes, and they should be an essential component of regional-scale hydrological and eco-hydrological models. This is particularly important in Canada with its tens of thousands of lakes. Past large-scale hydrologic modelling efforts tend to either ignore the impacts of all lakes or explicitly simulate the behaviour of only the largest lakes in a watershed. This research derives a suite of Pan-Canadian subwatershed-based lake and river routing GIS products at multiple spatial resolutions (average catchment size ranges from 60 to 306 km2 while the number of lakes explicitly represented ranges from 11,000 to 87,000). These publicly available data products supply all the necessary hydrologic routing model inputs, including network topology, subwatershed geometry, channel characteristics (slope, length, roughness, and geometry), and lake characteristics (area, volume, and outlet description), a...