Grid+
Next-generation curvilinear grid building, built for EFDC+
Grid+ Overview
Next-Generation Grid Building Technology
Grid+ is the next generation of grid-building technology, purpose-built to replace CVLGrid — our long-standing grid building tool. Designed for speed, intuitiveness, and reliability, Grid+ handles even the most hydrologically complex waterbodies with ease. Fully integrated into EEMS, it enables a seamless workflow between grid construction and model execution.
Build Complex Grids Quickly
Grid+ is engineered to tackle demanding projects at scale — from intricate river systems like the Amazon and the San Joaquin–Sacramento River Delta to large-scale grids exceeding half a million cells. Whatever the complexity, Grid+ delivers.
Optimized for EE & EFDC+
Grid+ is deeply integrated with EFDC+ and the EE environment. It can be launched directly from within the EE GUI and generates model input files without ever leaving the interface. Compared to CVLGrid, Grid+ introduces significant modern enhancements including online background maps, improved orthogonalization routines, and direct access to online bathymetry data — all designed to reduce setup time and improve grid quality.
EE GUI Integration
Grid+ can be launched directly from within the EE GUI and generates model input files without ever leaving the interface.
Online Background Maps
A significant modern enhancement over CVLGrid — Grid+ includes online background maps, designed to reduce setup time and improve grid quality.
Bathymetry & Orthogonalization
Improved orthogonalization routines and direct access to online bathymetry data — all designed to reduce setup time and improve grid quality.
Support for Other Hydrodynamic Models
Grid+ isn’t limited to EFDC+. Hydrodynamic models such as ECOM, CH3D, and DELFT3D all require 2D curvilinear orthogonal or Cartesian grids — exactly what Grid+ is built to produce. Whether used as a standalone tool or within a broader modeling workflow, Grid+ is the ideal solution for building accurate, high-quality grids efficiently.
