ESA Data Ontology: ESADO: VIL

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VIL

The Volume Imaging Lidar (VIL) is an elastic aerosol backscatter lidar designed to image the four-dimensional structure of the atmosphere [1]. Figure 1 shows a block diagram of the system. The transmitter employs a pulsed Nd:YAG laser. The receiver consists of a telescope, interference filter, and avalanche photo diode. Scanning is performed using a fast, computer controlled beam steering unit consisting of two flat rotating mirrors mounted at 45 angles on the optical axis of the transmitter-receiver system. Realtime control and data acquisition are controlled by an Intel i960 microcontroller on VME bus. An interactive user interface and graphical real time displays are perfomed using Silicon Graphics Indigo II workstation. The system is mounted in a semi-trailer, that has a water chiller and air conditioning to provide an adequate environment for the lidar and electronics. Only an external AC-power source is required for a full field operation. Additional information available at "http://lidar.ssec.wisc.edu/syst/vil/vil.htm" [Summary provided by Computer Based Learning Unit, University of Leeds] (en)

https://gcmd.earthdata.nasa.gov/kms/concept/ee6bc848-3c65-4693-aac0-6d1146d7d9f5

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ESA Data Ontology