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<br />. <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />.. <br /> <br />~ <br />, <br /> <br />- <br /> <br />. <br /> <br />_ L <br /> <br />I. PROGRAM DESCRIPTION <br /> <br />A. System Configuration <br /> <br />The system is comprised of seven basic components: <br /> <br />1. Gaging stations <br /> <br />2. Remote data collection hardware <br /> <br />3. Transmission receive hardware <br /> <br />4. Central computer <br /> <br /> <br />5. Applications software <br /> <br /> <br />6. Computer terminals for field staff <br /> <br /> <br />7. Satellite communications link <br /> <br />. <br /> <br />The remote data collection hardware is generally installed at pre-exist- <br /> <br />ing stream and reservoir gaging stations. The hardware interfaces with <br /> <br />on-site sensors. The sensor may be either a float operating in a stilling <br /> <br />well hydraulically connected to the stream or reservoir, a manometer or other <br /> <br />type of pressure transducer with an orifice positioned in the water, or a <br /> <br />direct discharge meter. <br /> <br />The remote site data collection hardware installed in these gaging <br /> <br /> <br />stations includes a Data Collection Platform (DCP), an incremental <br /> <br />analog-to-digita1 shaft encoder, an environmentally secure NEMA enclosure, a <br />Vagi antenna, a l2-volt battery, a solar panel, and complimentary cables. The <br />DCP is comprised of a sensor interface module, a microprocessor, and a UHF <br /> <br />transmitter. The sensor interface module is capable of handling up to 16 <br /> <br />-3- <br />