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Eddy Covariance Analyzers

We gave you the gas analyzers...

Preferred by flux networks like NEON, Ameriflux, ICOS, Asiaflux, and many others, based on rigorous testing and trials by leading researchers.

EddyPro icon

And EddyPro to process your raw data...

The clear industry leader, downloaded more than 5000 times, in more than 175 countries around the world.

Tovi icon

Introducing Tovi, the next piece of the eddy covariance puzzle.

We can get you to scientific discovery much, much faster, with this powerful new data analysis software package.

Check Out the Software

Here are a few of the features currently available in Tovi:


Coverage Charts

Quickly see all your data coverage in one all-encompassing view. View statistics such as the percentage of available data per time series. And quickly identify those areas of the time series that might need a bit of gap-filling.


Choose any variable to filter your flux data by, or use a slider to easily set the min/max threshold. Complete your QA/QC with a single software package, without writing a single line of code.


Footprint Modeling

This is a cool and unprecedented tool that allows you to view a satellite map of your site, and draw around the area of the tower you’d like to include in the footprint calculation. Or draw around additional areas you want to include in the computations. And you can even save a snapshot of the footprint for when you’re ready to present your data.

Automatic Weather Station Data Retrieval

Missing some weather data for your primary flux drivers? Don’t worry – with this tool, you can view, and choose from, a nearby weather station (from NOAA-IS or using ECMWF ERA-Interim data) and use any combination of those data to gap-fill your site’s meteorological dataset.



Import from EddyPro or SmartFlux, and export into the most popular formats, including Excel, .csv, JSON, MATLAB, NETCDF, and a format compatible with the Max Planck Institute online gap-filling tool.

New Features Coming Soon

Here are a few of the new features you can expect to see in the upcoming April release of Tovi:

  • Flux Gap Filling

    Using a Marginal Distribution Sampling (MDS) technique, as implemented by the Integrated Carbon Observatory System (ICOS), gaps are filled by building a relationship among the key drivers (vapor pressure deficit, solar radiation and air temperature) and NEE, LE or H.

  • U* Filter (Friction Velocity) Detection

    Using a Moving Point Test (MPT) technique, as implemented by AmeriFlux, allows detection of the threshold value, which indicates low turbulence.

  • Fingerprint Plots

    Represent ensemble averages of data in a heat map to quickly discover seasonal and temporal patterns.

  • Custom Code

    An integrated coding environment allows you to explore, analyze and plot your data using the Python™ programming language.

Check out the Tutorial


See Tovi at EGU

April 11

Splinter Meeting
10:30 – 13:15 p.m.
Austria Center Vienna
Room 0.16

Are you going to the European Geosciences Union (EGU) meeting in Vienna this April? If so, we will be hosting a Splinter Meeting that will give an overview of Tovi in a program entitled ‘Ecosystem Data Analysis Software’.

Get Started with Tovi

You can purchase the annual subscription from within the software, or give it a free test drive first, for 15 days, to see what it can do for you.

Try it for Free

Introductory Pricing for Collaborators

An annual subscription is available now at an introductory price of $900.00 U.S. This price includes free upgrades throughout your subscription period, which will give us a chance to build in some great new features, and give you a chance to tell us what you like, or don’t like; we’ll use your feedback and expertise to improve Tovi on our end.

Thanks for your interest!

You can purchase an annual subscription from within Tovi or give it a free 15 day trial to see what Tovi can do for you.

To get started, choose your operating system below. You’ll be directed to a new page; just click ‘Download’ in the middle of the page and install Tovi on your computer. When you start Tovi for the first time you can choose whether to start a free trial or purchase the annual license.

Download this file if you want to practice using Tovi with a long-term dataset. This file consists of a 12-month EddyPro output that includes flux results, biomet results, and metadata; as well as the project metadata file and EddyPro project file that are used by Tovi.

Feel free to send us your feedback via the “Feedback?” link in the software.

Thanks you for your interest.

We have received your registration request and will be in touch with you shortly regarding arrangements. If you have not heard from us within 5 business days, please contact us at

Complete this form to register for the EGU Splinter Meeting about Ecosystem Data Analysis Software.