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Physical-StreamReaches/doc

This folder contains files for the Physical - Stream Reaches product.

Introduction

The Physical - Stream Reaches map illustrates the locations of streams in the basin, as lines that generally follow the river/stream center line. The stream reaches layer is a foundational layer that is displayed on many maps.

Update Frequency

This product is updated infrequently, based on changes in CDSS Source Water Route Framework dataset.

Datasets

The following are datasets for the map.

Dataset Description Data Source
Source Water Route Framework (SWRF) Stream linework with each stream corresponding to a single line. CO DWR processed USGS NHD layer to merge linework into lines that correspond to rivers and streams. The data is originally from a statewide layer downloaded from the State of Colorado CDSS website. It was then processed by OWF to split into water district layer and is available on the CDSS Spatial Datasets for Colorado Water Districts and Divisions website. The OWF dataset is older and uses the original GeoJSON specification. The workflow reads the old GeoJSON and writes in latest specification.

Files

The following files and folders are used.

File/Folder Description Repo Ignore
.gitignore Indicates which files should be ignored in the repository.
01a-download-swrf.gp GeoProcessor command file to download data.
03-create-stream-reaches-map.gp GeoProcessor command file to create map.
doc/ This README.md and related files.
downloads/ Downloaded files. Yes - for downloaded files.
layers/ Layers and supporting files used in the map. Yes - for generated files.
stream-reaches.json Map configuration file. Yes

Workflow

The following describes the workflow steps, which should be run in the order shown to fully regenerate the information products.

Command File/Script Software Description
01a-download-swrf.gp GeoProcessor Download the stream reaches from OWF data website and rewrite to ensure latest GeoJSON format.
03-create-stream-reaches-map.gp GeoProcessor Create the map configuration file and copy map and layer files to the distribution folder.