Accelerated flood modeling

A computer program product comprising:

• one or more computer readable storage media having computer readable program code collectively stored on the one or more computer readable storage media, the computer readable program code being executed by one or more processors of a computer system to cause the computer system to perform at least the following operations:
• generating, using a down-sampling neural network, a low-resolution elevation map from a high-resolution elevation map;
• generating, using a partial differential equation (PDE) model, a low-resolution water depth map from the low-resolution elevation map and one or more boundary conditions;
• and
• generating, using an up-sampling neural network, a high-resolution water depth map from the low-resolution water depth map,
• wherein the down-sampling neural network and the up-sampling neural network are trained by minimizing a loss between the generated high-resolution water depth map and ground truth data generated by the PDE model using the high-resolution elevation map as a direct input and without the PDE model using the low-resolution elevation map.

A computer-implemented method comprising:

• generating, by one or more processors and using a down-sampling neural network, a low-resolution elevation map from a high-resolution elevation map;
• generating, by the one or more processors and using a partial differential equation (PDE) model, a low-resolution water depth map from the low-resolution elevation map and one or more boundary conditions;
• and
• generating, by the one or more processors and using an up-sampling neural network, a high-resolution water depth map from the low-resolution water depth map,
• wherein the down-sampling neural network and the up-sampling neural network are trained by minimizing a loss between the generated high-resolution water depth map and ground truth data generated by the PDE model using the high-resolution elevation map as a direct input and without the PDE model using the low-resolution elevation map.