Checking for non-preferred file/folder path names (may take a long time depending on the number of files/folders) ...

This resource contains some files/folders that have non-preferred characters in their name. Show non-conforming files/folders.

This resource contains content types with files that need to be updated to match with metadata changes. Show content type files that need updating.

[Notebook] Exploring and Subsetting VPU-Level NextGen Hydrofabric Using Python

Authors:
Owners:		This resource does not have an owner who is an active HydroShare user. Contact CUAHSI (help@cuahsi.org) for information on this resource.
Type:	Resource
Storage:	The size of this resource is 434.1 KB
Created:	Jun 10, 2026 at 10:58 a.m. (UTC)
Last updated:	Jun 10, 2026 at 2:17 p.m. (UTC)
Citation:	See how to cite this resource

Sharing Status:	Public
Views:	71
Downloads:	100
+1 Votes:	Be the first one to this.
Comments:	No comments (yet)

Abstract

This HydroShare resource provides a Jupyter Notebook for accessing, exploring, visualizing, and subsetting NextGen Hydrofabric data for a selected Vector Processing Unit (VPU). The notebook introduces the structure of hydrofabric GeoPackage files, including key layers such as divides, flowpaths, nexus, network, and hydrolocations. It demonstrates how these layers are connected through identifiers and how water movement can be traced through the hydrofabric network. It walks through the relationship between catchments, flowpaths, and nexus features using a USGS gage location as an example. The notebook then explains the concept of upstream traversal and applies a Python-based subsetting function to extract the upstream watershed draining to a selected downstream divide.

Subject Keywords

Deleting all keywords will set the resource sharing status to private.

Coverage

Spatial

Coordinate System/Geographic Projection:

WGS 84 EPSG:4326

Coordinate Units:

Decimal degrees

North Latitude

35.1519°

East Longitude

-83.4085°

South Latitude

29.6281°

West Longitude

-89.8531°

Content

Learn more about the BagIt download

Select a file to see file type metadata.

Related Geospatial Features

This HydroShare resource is linked to the following geospatial features

Geoconnex, through the Internet of Water: This field allows you to relate this resource to overlapping geospatial features in order to increase the FAIRness and discoverability of your data. Below, collections of reference features within the United States are provided. Search these collections to find features that overlap with your data, or provide a URL that resolves to a geospatial feature not yet in the Geoconnex collections.
Learn more about Related Geospatial Features

We highly recommend that you add Spatial Coverage to this resource before searching for related geospatial features. Otherwise query times can be excessive.

Please note: your resource spatial extent (${(resSpatialExtentArea * 1e-6).toFixed(0)} square kilometers) is larger than a big US state. You might experience reduced performance during your searches.

${ searchResultString }

${ messageObj.message }

${value.text}

Click a point to search for features that overlap with that location.

Select a feature for more information.

Related Resources

The content of this resource references	Castronova, A. M. (2026). NextGen Hydrofabric by VPU, HydroShare, http://www.hydroshare.org/resource/bbbabc296b65401ca1f4f3985e4b2b00
The content of this resource references	Castronova, A. M. (2026). NGEN HydroFabric VPU Boundaries, HydroShare, http://www.hydroshare.org/resource/35e8c6023c154b6298fcda280beda849

This resource belongs to the following collections:

Title	Owners	Sharing Status	My Permission
Collection of Materials for the CUAHSI's Workshops at the National Water Center Bootcamp 2026	Irene Garousi-Nejad · Anthony Castronova · Abner Bogan · Danielle Tijerina-Kreuzer	Public & Shareable	Open Access

How to Cite

Garousi-Nejad, I., A. M. Castronova (2026). [Notebook] Exploring and Subsetting VPU-Level NextGen Hydrofabric Using Python, HydroShare, http://www.hydroshare.org/resource/6cf3857f4c3c45c68138f6980d7d0bb5

This resource is shared under the Creative Commons Attribution CC BY.

http://creativecommons.org/licenses/by/4.0/

Comments

There are currently no comments

Notifications (${tasks.length})