Surface Group

The Surface Group focuses on systems to measure the surface layer, surface energy budget and surface properties. This group deploys the ISFS (Integrated Surface Flux System), and operates the EOL Calibration Laboratory.

The Integrated Surface Flux System (ISFS) is designed to study exchange processes between the atmosphere and Earth's surface.

ISFS combines the capabilities of a network of surface weather stations with the ability to support intensive micrometeorological research at a single site. Investigators can configure ISFS resources to match the research objectives of each field project.

Requestable Systems

Integrated Surface Flux System (ISFS)

ISFS can be deployed as a widely distributed network of surface weather stations - measuring the surface energy budget, fluxes, and some soil parameters. Alternatively, it can be deployed in closely spaced arrays to support intensive micrometeorological research at a single site. Solar power, RF modems and satellite data transmission permit ISFS to operate almost anywhere on land.
» Read more about the ISFS


Development Systems


As the next generation of ISFS, CentNet applies new technologies such as wireless networking and embedded sensor microcontrollers to greatly expand the size of our deployable surface measurement network. We envision a surface network of 100 self-contained systems to support field studies on many geophysical topics. Each CentNet station would provide research-quality direct measurements of all components of the surface energy budget, with other sensors added to support specific research topics.
» Read more about CentNet

TRAnsect Measurement (TRAM) System

TRAM is a platform to make surface-based in-situ measurements in situations where the dominant spatial scales are unknown. It is implemented as an electric train that uses a steel cable suspended along a set of fixed towers for its track. The track can be formed in almost any closed loop with climbs/descents of up to 15° and spans between towers of up to 20m. In principle, total track length is unlimited, though distances of more than 2km probably are not practical.
» Read more about the TRAM system

Operational Facilities

Calibration Laboratory

We operate a sensor calibration laboratory to ensure our field sensors are properly calibrated and to support instrument developments. The laboratory can simulate the full range of pressure, temperature, humidity, and wind speed to which meteorological sensors are normally exposed. Our calibration systems are traceable to either primary standard maintained at NIST, or to secondary standards.
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