FOR THE MEASUREMENT OF HEAT FLUXES AND EVAPORATION AT LARGE SCALES Path averaged measurement of sensible heat fluxes Integrated data logger Range 100 m to 4.5 km Digital data processing Stand-alone operation Real-time data display

LAS MkII Large Aperture Scintillometer Heat uxes and evaporation at the Earth’s surface are of great importance to the elds of meteorology and hydrology. The LAS MkII Scintillometer is Kipp & Zonen’s solution for long term unattended monitoring of Cn² and heat uxes within the planetary boundary layer. Sensible heat ux causes a temperature dierence within the atmosphere; its eects are detectable by measuring ambient temperature at two heights. Latent-heat ux is the result of the evaporation of water or transpiration by vegetation. For this reason, this ux is often referred to as evapo-transpiration...

LAS MkII large aperture scintillometer is designed to oer easy installation, conguration and operation, requiring only limited maintenance. The LAS MkII can be installed and congured using its built-in display and key-pad without the need for any extra equipment. This prevents the inconvenience of carrying additional instruments to the site of installation. The LAS MkII has a built-in data logger and digital outputs for direct PC connection. Real time measurements are shown on the display. The Cn² data is also available as an analogue output to be recorded using virtually any type of data acquisition...

Specifications LAS MkII Path length / Aperture diameter Scintillation bandwidth Carrier frequency Features Interface options Digital RS-232/422 Analog output 0 to 2 V Instrument control and data display Built-in display and key-pad or remote via digital interface Heating system Programmable lens heater (receiver) Self-regulating lens heater (transmitter) Data processing Internal processing of Cn², free sensible heat ux and other parameters Built-in data logger External sensor connection Optional sensor kit: wind speed, temperature and pressure Software included EVATION® (instrument control and...