Catena Data

Catena-GIS includes point-and-click access to public base layers and datasets from multiple open-source data providers. You can upload, export, and modify data from these and other providers using symbology, heads-up digitizing, and creation of new layers from XY data. Time-series data can also be uploaded in table format and attached to features from a feature class dataset. 

Below you’ll find more information about Catena-GIS layers and datasets.

 

LAYERS & DATASETS

Base Layers

These are user selected representations of the land surface that can be viewed at multiple scales. Base layers form the foundation of a map and can be selected or deselected by clicking on the radio button next to each layer. These layers cannot be user modified and only one basemap can be selected at any time.

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Public Layers

Public layers are sourced from publicly available national datasets and can be explored using the “Layers”  icon located on the right dashboard.  Each item listed is a collection of layers and can be expanded by clicking the down arrow next to each item under the collection to display additional information.  Data can also be extracted from public layers for further spatial analysis.

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User Layers

Created through export from Public Layers, addition from raster and vector geospatial files stored locally or found online, from heads-up digitizing, and/or from XY data organized in tables, geospatial layers have the greatest ability to be symbolized, analyzed, and modified.

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Placemarks

Placemarks can be formatted as points, lines, or polygons added to your map. Placemarks can only be added if you are logged in to eRAMS and working on a project. Clicking on a created placemark under the Placemarks tab or on the map itself opens a popup window with geospatial information about the item. Clicking Edit opens a window where general information about the placemark can be updated, symbology can be changed, and additional files can be uploaded with supporting information.

 

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