Mapping extreme wildfire behavior

Windsond was successfully used to learn more about the behavior of extreme wildfires. The group was led by Marc Castellnou. They made a field campaign in 2021 and their article was published in the Journal of Geophysical Research Atmospheres in November 2022.

As background, there is a global trend of more intense wildfires. Citing the paper: “The increase in extreme wildfires has had an impact on a global scale, resulting in dramatic consequences in terms of human lives: 173 deaths in Australia in 2009; 110 deaths between June and October 2017 in wildfires in Portugal; 102 deaths in Kineta, Greece, in 2018; 85 deaths in Santa Rosa, California, in 2017; 94 deaths in Paradise, California, in 2018.”

The extreme fires are less predictable, due to their interaction with the atmosphere resulting in the special pyrocumulus and pyrocumulonimbus cloud types. It is known that these make fires more extreme but the measureable relationship is still not defined.

First, Windsond was compared against Vaisala RS41-SG and found to correspond well. Then the authors launched 13 Windsond radiosondes in 7 wildfires during the 2021 fire season in the Iberian Peninsula. The extreme mobility of Windsond is useful in the dangerous and shifting conditions near wildfires.

The measured values differed from those suggested by prior theory, whichs shows the need for in situ measurements. From these and other measurements, they propose a classification of four types of fire-atmospheric interactions, with different effect on the fire spread. They also reached other insights in wildfire behavior.

The paper concludes that “This analysis shows the strong value of using in-fire-plume soundings to advance understanding of the coupling between upper air atmosphere and fire spread.”

Summer holiday 2022


We’ll be on summer vacation July 2 – July 31. During this time, we can’t give you our usual, fast response time. Sending an email to both and during this period will increase your chances to get hold of us.

Have a great summer!

Mapping methane emissions

Linköping University uses a drone with a high-performance methane sensor to map and find methane emission sources. Sparv Embedded equipped the drone with sensors. The Sparvio system takes onboard readings of a range of parameters: methane, winds, air pressure, position, orientation and speed, temperature and humidity and also reads flight data from the drone itself. All data is timestamped and logged onboard. The data is also transmitted to a ground station via radio, where the operator can view graphs during and after the flight.

This article in ACS Earth and Space Chemistry describes results as of 2021. Among other results, the authors found that wind measurements onboard the drone revealed wind variations not present at ground-based weather stations.

Methane is an important greenhouse gas and the current knowledge of emission sources is lacking. Sparv Embedded is happy to help Linköping University and others to develop methods to explore the emissions. We continue to refine our solution in this area.

We are a European reseller of Aeris Technologies supporting their high-resolution sensors for methane (CH4), carbon monoxide (CO), carbon dioxide (CO2), nitrous oxide (NO2), etc. We are also a reseller of the unique Anemoment wind sensors.

TriSonica Sphere Wind Flux Sensor

The manufacturer Anemoment LLC will shortly launch the TriSonica Sphere Wind Flux Sensor. This product was developed to address the growing demand for a compact, lightweight, 3D sonic anemometer that can accurately and precisely measure vertical wind velocity. Sparv Embedded is an approved distributor. Reach out to us if you are interested to order the sensor as is, or integrated with Sparv Embedded’s sensor system Sparvio.

More information on the Trisonica Sphere Wind Flux Sensor

Summer holiday 2021

The office will be closed between July 9 to August 9 due to our summer vacation. During this time, we can’t give you our usual, fast response time. Sending an email to both and during this period will increase your chances to get hold of us.

Have a great summer!

Land-atmosphere interaction workshop

Sparv Embedded will be part of the AmeriFlux virtual workshop “Land-atmosphere interaction” on June 10th and 11th from 800 am – 230 pm PDT. The workshop topic is about improving the understanding of land-atmosphere interactions through integration of surface flux and boundary layer measurements.

We are passionate about producing smart measurement solutions that makes boundary layer data more accessible, cost effective and environmental friendly. Check the Sparv Embedded Product page for more information of our solutions.