Atmospheric Sampling Tower - Vertical (image) San Diego State University Share Print E-Mail Caption This image shows eddy covariance flux tower in winter in Atqasuk, Alaska, USA (Global Change Research Group, San Diego State University). The special, on demand, heating of the sonic anemometer developed by Donatella Zona and Walter Oechel allowed extending the flux measurements during the entire year under the harsh arctic conditions while maintaining data quality. Credit Salvatore Losacco Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.