Sugarloaf Technical Solutions LLC

WeatherFlow Smartweather

The WeatherFlow crowd-funded weather station measures environmental parameters.

The WeatherFlow datagram scrapper captures datagrams and sends data to CHORDS.


The Sutton Total Precipitation Gauge measures rain and snow.

The tpg transfer program reads the TPG and sends data to CHORDS.

Cloud-Hosted Realtime
Data Services
for the Geosciences

CHORDS is supported by the National Science Foundation EarthCube initiative, which is a community-led cyberinfrastructure initiative for the geosciences.

You are looking at a CHORDS Portal. This is a web service that allows scientists to easily provide Internet access to real-time streaming data. Typically these data are measurements made by diverse instruments, which are deployed in support of a particular research effort.

Each research team can operate their own portal, which is created simply by running a copy of the CHORDS appliance on Amazon cloud services. This provides a web server and database. CHORDS can both ingest and deliver data via simple http: requests, just like any web browser. Configuration and management of your private CHORDS server is also done through a web interface. Any user on the Internet can attach to the data streams using tools of their choice, such as Matlab, Excel, Python, web browsers; i.e. anything that is able to issue an http: request.

CHORDS portals can also forward real-time data streams to higher level CHORDS services, which might provide functions such as OGC compliant formatting, mapping services, federation, and just about anything else you can think of.

The goals of CHORDS are:


CHORDS has been issued a Digital Object Identifier (DOI) from

We request that researchers cite CHORDS usage in any relevant publication or other context as follows:

DOI citation could not be found, please click here:

Portal Status

Release development
Uptime Server:about 1 month, System:3 months
Code Branch:devel-https_ssl-merged, Revision:24d08c8
Docker Build time:2019-09-11 23:20:23 UTC
System 4.4.0-161-generic #189-Ubuntu SMP Tue Aug 27 08:10:16 UTC 2019 x86_64
Rails Version:5.2.3, Mode:production

Sponsor Acknowledgements

CHORDS is being developed for the National Science Foundation’s EarthCube program under grants 1639750, 1639720, 1639640, 1639570 and 1639554.