One post tagged with "Cyberinfrastructure"

Opening New Doors for Research with the NextGen Framework​

The NextGen framework holds great potential for hydrologic modeling, but is often inaccessible due to its strenuous setup and requirements. As such, embedding it within a cloud-based framework offers a natural solution to this problem by removing some of the administrative and technical requirements for compute resource setup and computational library configuration, thus opening the door for a wider audience to tke advantage of the strengths of the framework.

With the CIROH Community NextGen Hub (CCNH), we’ve created a cloud-based environment that addresses exactly those setup challenges, so users can focus on science instead of software.

A Preconfigured, Ready-to-Use Cloud Environment​

CCNH is a containerized, cloud-based modeling environment hosted on the CIROH-2i2c JupyterHub. It packages everything a researcher needs to run end-to-end NextGen workflows — from input preprocessing through model execution, calibration, evaluation, and output visualization — into a single, ready-to-use JupyterHub image. Built on the same containerization patterns as NGIAB, CCNH leverages a Pangeo base image and includes:

• Pre-compiled NextGen framework binaries from NGIAB based docker image
• NGIAB data preprocessing tools for automated retrieval and subsetting of hydrofabric and meteorological forcing datasets
• T-Route routing components for streamflow simulation
• SPOTPY(Statistical Parameter Optimization Tool for Python) for model calibration
• TEEHR(Tools for Exploratory Evaluation in Hydrologic Research) for performance evaluation
• PyNGIAB, a Python wrapper that lets you run NextGen simulations directly from Jupyter notebooks
• HydroShare integration tools (nbfetch, hs_files-jupyter, hsclient) for seamless data exchange to save results in HydroShare for collaboration, reproducibility and publishing
• JupyterLab with distributed computing capabilities for interactive, scalable workflows

The result: researchers can go from zero to running a calibrated NextGen simulation in a fraction of the time previously required.