Field measurements
Field measurements are physically measured values collected during a visit to the monitoring location. Field measurements consist of measurements of gage height and discharge, and readings of groundwater levels, and are primarily used as calibration readings for the automated sensors collecting continuous data. They are collected at a low frequency, and delivery of the data in WDFN may be delayed due to data processing time.
data manual periodic subhourly irregular measured computed current single location features
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Browse the data
Explore field measurements observations in your browser! Requests made in a browser will default to returning HTML responses; add
f=jsonto your query to always get the JSON response. -
Read the docs
The OpenAPI documentation lists available query parameters and has a helpful query-builder interface you can use to bootstrap your requests.
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See the data dictionary
Field names, types, and definitions are provided as both an HTML table and a JSON schema file.
Other links
- The landing page of this server as JSON (application/json)
- The landing page of this server as HTML (text/html)
- This document as JSON (application/json)
- This document as RDF (JSON-LD) (application/ld+json)
- This document as HTML (text/html)
- Schema of collection in JSON (application/schema+json)
- Schema of collection in HTML (text/html)
- Queryables for this collection as JSON (application/schema+json)
- Queryables for this collection as HTML (text/html)
- Items as GeoJSON (application/geo+json)
- Items as RDF (GeoJSON-LD) (application/ld+json)
- Items as HTML (text/html)