Engineering topics
Publications and source records attributed to Halliday, R. A..
The author has identified the following significant results. The project continued to demonstrate the feasibility of transmitting hydrometric data in the LANDSAT and GOES mode and using these data operationally. All elements except for the GOES downlink at PASS were functioning well.
The author has identified the following significant results. The project continues to demonstrate the feasibility of transmitting hydrometric data in the LANDSAT and GOES mode and using these data operationally. All elements except for the GOES downlink at PASS are functioning well.
The author has identified the following significant results. The LANDSAT program has demonstrated that polar orbiting satellites can be used to relay hydrologic data from any part of Canada to a user without difficulty and at low cost. These data can be used for many operational purposes, the most important of which were identified as follows: hydroelectric power plant operation; water supply for municipalities, industries, and irrigation; navigation; flood forecasting; operation of flood control structures and systems; and recreation.
There are no author-identified significant results in this report.
The author has identified the following significant results. The feasibility of transmitting hydrometric data in the LANDSAT and GOES mode and using these data operationally was demonstrated. All elements except for the GOES downlink at PASS are functioning well.
The author has identified the following significant results. During the winter of 1974-75, the number of transmissions dropped with lower temperatures and ceased at -20 C. During the winter of 1975-76, the same pattern occurred except that the platform ceased at slightly lower temperatures, probably due to the addition of 3, 1.5 V primary cells to the power supply. The next winter (1976-77), the same pattern occurred.
The author has identified the following significant results. Experimental use of LANDSAT data collection system and the GOES system has demonstrated the feasibility of using this technology to relay hydrologic data from remote areas on a near real time basis. The system has proved to be accurate, reliable, and cost effective.
There are no author-identified significant results in this report.
The author has identified the following significant results. The project continues to demonstrate the feasibility of transmitting hydrometric data to polar orbiting spacecraft and using these data operationally. All elements on the system are functioning well.
The author has identified the following significant results. Results have demonstrated the suitability of satellite retransmission as a means of obtaining near real time data from remote areas in Canada. Capital costs of the equipment installed at a gaging station are reasonable, and indications are that the DCPs do not require much maintenance. The potential impact on water resources data gathering activities is considerable.
There are no author-identified significant results in this report.
The author has identified the following significant results. The project continues to demonstrate the feasibility of transmitting hydrometric data to polar orbiting spacecraft and using these data on a quasi-operational basis. The implementation of the receive site in Alaska in December 1975 has significant impact on the Canadian experiment as the number of transmissions received from some northern and northwestern sites has increased substantially.
The author has identified the following significant results. The project demonstrates the feasibility of transmitting hydrometric data to polar orbiting spacecraft and using these data on a quasi-operational basis. The implementation of the Alaska receive site in December had a significant impact on the Canadian experiment as the number of transmissions now received from some northern sites has increased substantially. Data are now received on as many as 11 orbits each day.
There are no author-identified significant results in this report.
The author has identified the following significant results. The feasibility of transmitting hydrometric data to polar orbiting spacecraft and using these data for quasi-operational purposes was demonstrated.
There are no author-identified significant results in this report.
There are no author-identified significant results in this report.
The author has identified the following significant results. Water resources data including water level, water velocity, precipitation, air temperature, ice-out indicator, data collection platform battery check and water stage recorder clock operation have been transmitted from remote areas in Canada using the ERTS Data Collection System. The system has met all requirements. The suitability of satellite retransmission has been demonstrated. The present network will be expanded to 28 in 1975.