eddy covariance

Knowledge graph centered on eddy covariance with 76 nodes and 238 connections. Top connected: Gothic, Beetles, Crested Butte, Engelmann Spruce, The East River, Colorado, Watershed: A mountainous.

Method synopsis

Standardized eddy covariance measurements of carbon dioxide, water vapor, and energy fluxes between ecosystems and atmosphere. Continuous automated measurements providing ground truth data for model training and validation.

Synthesized from method descriptions across 13 papers using this protocol.

Procedure from a recent peer-reviewed implementation

Steps below were extracted from the most recent peer-reviewed implementation of this protocol in the corpus — Observations of surface energy fluxes and meteorology in the seasonally snow-covered high-elevation East River watershed during SPLASH, 2021–2023 (2025), Earth System Science Data. Implementations in other papers (listed below) may differ.

1. Measure turbulent fluxes
   Collected 3-D wind velocities using METEK uSonic-3 Cage Multipath sonic anemometer and H₂O/CO₂ concentrations using LI-COR LI-7500DS gas analyzer. Raw data acquired at 20Hz, then aggregated to 10Hz by averaging and processed using eddy covariance methodology.
   Quantities: 20Hz raw acquisition, 10Hz processing, 10 minute flux intervals, anemometer and gas analyzer co-locatedDuration: Continuous throughout deployment periodsConditions: Quality controlled for sensor diagnostics, physically plausible limits, and undesirable high-frequency correlated noise
   Equipment: METEK uSonic-3 Cage, LI-COR LI-7500DS

Typical Equipment

• FLUXNET eddy covariance towers
• meteorological sensors
• temperature sensors
• radiation sensors
• precipitation gauges
• soil sensors

Output Measurements

• evapotranspiration
• ecosystem respiration
• net ecosystem exchange
• meteorological variables

Papers Using This Protocol (13)

Species Studied With This Protocol

Places Where Used