Compilation of hydraulic models for the study of the spatial averaging on flow laws

<strong>1.Summary</strong> Datasets used in the article written by Ernesto Rodríguez, Michael Durand and Renato Prata de Moraes Frasson entitled “Observing rivers with varying spatial scales”. <strong>2.File description</strong> Data will be contained in one NetCDF file per river. The file contains the following groups and variables: <strong>/River_Info/</strong> Name: River name, data type: char QWBM: Mean annual discharge from the water balance model WBMsed (Cohen et al., 2014) rch_bnd: Reach boundaries measured in meters from the upstream end of the model gdrch: Reaches used in the study. Used to exclude small reaches defined around low-head dams and other obstacles where Manning’s equation should not be applied. <strong>/XS_Timeseries/</strong> t: Time measured in days since the first day or “0-January-0000” for cases when specific dates were available. Dimension: 1,time step. Z: Bed elevation in meters. Dimension: Cross-section, time step. xs_rch: Reach number for each cross-section. Dimension: Cross-section,1. X: Flow distance measured from the most upstream end of the model to the cross-section (meters). Dimension: Cross-section, 1. W: River width in meters. Dimension: Cross-section, time step. Q: Discharge (m³/s). Dimension: Cross-section, time step. H: Water surface elevation in meters. Dimension: Cross-section, time step. A: Cross-sectional area of flow in m². Dimension: Cross-section, time step. P: Wetted perimeter in meters. Dimension: Cross-section, time step. n: Manning’s roughness. Dimension: Cross-section, time step. <strong>/Reach_Timeseries/</strong> t: Time measured in days since the first day or “0-January-0000” for cases when specific dates were available. Dimension: 1,time step. W: Reach averaged river width in meters. Dimension: Reach, time step. Q: Reach averaged discharge (m³/s). Dimension: Reach, time step. H: Reach averaged water surface elevation in meters. Dimension: Reach, time step. S: Reach averaged water surface slope in meters per meter. Reach, time step. A: Reach averaged area of flow in m². Dimension: Reach, time step. P: Reach averaged wetted perimeter in meters. Not available for all rivers. Fill value: NaN. Dimension: Reach, time step. <strong>References</strong> Cohen, S., A. J. Kettner, and J. P. M. Syvitski (2014), Global suspended sediment and water discharge dynamics between 1960 and 2010: Continental trends and intra-basin sensitivity, <em>Glob. Planet. Change</em>, <em>115</em>, 44-58, doi: 10.1016/j.gloplacha.2014.01.011. Rodríguez, E., Durand, M. T., &amp; Frasson, R. P. d. M. (2020). Observing rivers with varying spatial scales. Water Resources Research. doi: 10.1029/2019WR026476