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Design Strategy Of Snow Depth Sensor Based On Ultrasonic Pulse-Transit Technique For Remote Measurement Of Snow Cover Thickness, Raman Attri Aug 1999

Design Strategy Of Snow Depth Sensor Based On Ultrasonic Pulse-Transit Technique For Remote Measurement Of Snow Cover Thickness, Raman Attri

Raman K. Attri

Snow cover thickness is one of the important parameter used in forecasting models for snow-melt, snow run-off water, snow avalanche release and other snow hydrological changes. Ultrasonic pulse transit method is being used for such applications universally. Reflected echo coming after reflection from highly irregular and non-smooth porous surface, is very low amplitude noise ridden signal. This received echo signal has to be conditioned to remove signal and processed to increase its amplitude to make it sufficiently detectable and to increase the probability of receiving back the reflected echo. A special design of Snow Depth Sensor based on Ultrasonic Pulse …


Gsis: A Conceptual Model For Web-Based Integration Of Information Technology With Geo-Scientific Instrumentation, Raman Attri Jun 1999

Gsis: A Conceptual Model For Web-Based Integration Of Information Technology With Geo-Scientific Instrumentation, Raman Attri

Raman K. Attri

Since a long time leading organisations have been advocating the need of implementation of IT in a centralised manner on the distributed geological data monitoring centres. In the era of IT, it is highly important to access, share and analyse related data on a common platform for fast retrieval of information in centralised as well as in distributed mode. In this article a concept to integrate Geo-Scientific Instrumentation systems to Information Technology has been highlighted. The vision to create a Geo-Scientific Information System (GSIS) would be an approach where a centralised web-enabled database of the data acquired & transmitted by …