2002-2015 Hemlock

Abstract

Weather monitoring data were collected with the Davis weather station during years (2002-2009) and Onset Hobo – 2003. The Davis station recorded a variety of parameters including the following: barometric pressure, evapotranspiration, outside humidity, dew point, rainfall (daily, storm, monthly, yearly), rain rate, solar radiation, outside temperature, heat index, UV index, UV dose, wind direction, wind speed and wind chill, and soil temperature and moisture at depths of 5 cm, 20 cm and 60 cm. The stations collect data every ten minutes using a cable that links the Vantage Pro console to the Integrated Sensor Suite (ISS). The ISS unit has the following components: rain collector, anemometer vane, wind cups, UV, solar radiation sensors, soil temperature and moisture. The Onset Hobo weather station is a research-grade data-logging system, known for performing reliably in the field year after year. HOBO weather stations use sensors for measuring air temperature, relative humidity, dew point, rainfall, soil moisture, solar radiation, wind speed and direction, barometric pressure, and soil temperature and moisture. The stations collect data every ten minutes and store them by data-logger. The data were periodically (usually in monthly intervals) downloaded from both types of stations (Davis and HOBO) placed at the same spot of the hemlock forest stand of Prospect Hill.