Corrigendum: Subgrid channel formulation in an integrated surface-subsurface hydrologic model (Frontiers in Water, (2025), 6, (1520913), 10.3389/frwa.2024.1520913)

In the published article, there was an error. A correction has been made to Methods, Idealized test case, paragraph 2. The model timestep was incorrectly stated to be 1 hour when it is was 0.1 hours. This sentence previously stated: “Four hours of spatially invariable rainfall are applied at the beginning of each simulation and then the simulation continues with hourly timesteps until outflow is approaching zero.” The corrected sentence appears below: “Four hours of spatially invariable rainfall are applied at the beginning of each simulation and then the simulation continues with 0.1-h timesteps until outflow is approaching zero.” A correction has been made to Results, Coarse baseline model performance, paragraph 3. The units for Manning's n were incorrectly reported as being s/m^1/3 when the values given were in min/m^1/3. This sentence previously stated: “Overall, the largest discrepancy in peak flow of 78.40% is seen in the scenario where channel width is 100 m, rainfall intensity is 0.5 cm/hr, Manning's n is 6e-3 s/m^1/3, and bottom slope is 1e-4 m/m.” The corrected sentence appears below: “Overall, the largest discrepancy in peak flow of 78.40% is seen in the scenario where channel width is 100 m, rainfall intensity is 0.5 cm/hr, Manning's n is 3.6e-1 s/m^1/3, and bottom slope is 1e-4 m/m.” There was an error in Table 2 as published. The units for Manning's n were incorrectly reported as being s/m^1/3 when the values given were in min/m^1/3. The corrected Table 2 and its caption appear below. All input parameters varied and their corresponding values. There was an error in Figure 5 as published. The units for Manning's n were incorrectly reported as being s/m^1/3 when the values given were in min/m^1/3. The corrected Figure 5 and its caption appear below. Percentage difference in peak flow between the coarse baseline and high-resolution baseline models. Here channel width is not an input in the coarse baseline model but instead is only used to define the domain resolution of the high-resolution model. There was an error in Figure 6 as published. The units for Manning's n were incorrectly reported as being s/m^1/3 when the values given were in min/m^1/3. The corrected Figure 6 and its caption appear below. Percentage difference in peak flow between the coarse subgrid formulation and high-resolution baseline models. Here channel width is an input in the coarse subgrid model as well as used to define the domain resolution of the high-resolution model. There was an error in Figure 8 as published. The units for Manning's n were incorrectly reported as being s/m^1/3 when the values given were in min/m^1/3. The corrected Figure 8 and its caption appear below. Percentage difference in peak flow between the coarse baseline formulation and high-resolution baseline models at the outlet of the 30 km channel. The authors apologize for these errors and state that they do not change the scientific conclusions of the article in any way. The original article has been updated.