SMEAR
Station for Measuring Ecosystem-Atmosphere Relations III Aerosol/Flux Tower

The SMEAR III Aerosol/Flux Towers are part of the Station for Measuring Ecosystem-Atmosphere Relations (SMEAR) network of research stations in northern Europe. One of the SMEAR III towers is located in Kumpula near the University of Helsinki campus. The other is stationed on the roof of the University of Helsinki Physicum Building. The Kumpula tower is mounted with the PT-100 Platinum Resistance Thermometer, ThiesClima 2.1x 2D Ultrasonic Anemometer, and Kipp and Zonen CNR1 and PARlite Radiometers at different heights to measure temperature, wind, and radiation. The Physicum Building tower is mounted with the same radiometers as well as the Vaisala MILOS 520 Automatic Weather Station, Vaisala Present WeatherDetector (PWD), and an Ott Pluvio weighing rain gauge. Both stations are operated by the University of Helsinki and the Finnish Meteorological Institute.