Welcome to All Sensors “Put the Pressure on Us” blog. This blog brings out pressure sensor aspects in a variety of applications inspired by headlines, consumer and industry requirements, market research, government activities, and you.
The Nileometer: Measuring Water Depth before Pressure Sensors
In the middle of the Sahara Desert, annual flooding of the Nile River gave life and allowed Egypt to rule in ancient times and thrive today. Every year from June to mid-September, the Ethiopian Highlands in Africa experienced rain storms that washed mineral-rich volcanic topsoil into the Blue Nile River. The water flow carried the topsoil thousands of kilometers along the Nile and deposited the topsoil along its banks and in the fertile Nile Delta at the Mediterranean Sea.
However, the floods were unpredictable. While they couldn’t control the river, the Egyptians did measure the amount of annual flooding to predict the future crop harvest with strategically placed demarkations that are now called nileometers.
Rather than simply using the steps to indicate the water level, the nileometer at Elephantine Island in Aswan, Egypt provides improved resolution for annual water level comparisons.
Photo by Ferrell Jenkins.
Built in the 1960s, the Aswan High Dam, or simply the Aswan Dam, now provides control for the annual flooding. With the availability of low cost and accurate pressure sensors from All Sensors, groves do not have to be cut in structures to measure the water level on the Nile or anywhere where accurate water level information is required.
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