Women in Water, Donna Hollis and Alice Ohrtmann.

As part of our Women in Water series, started on International Women's Day, we are interviewing women across the world who are dedicated to the protection of the water and the environment, and the use of technology to do so. This week, we met with Donna Hollis, an AQUARIUS user from TasWater, and Alice Ohrtmann, a Linko user from Rock River Water Reclamation District....

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Excel Spreadsheet, Reality by the Numbers.

There is a hidden cost behind the reliance on spreadsheets that is invisible to those who are dependent on them. Most people use spreadsheets for multiple purposes, so using spreadsheets to manage water data seems “free” relative to the cost of purpose-built software for data management. A National Public Radio Podcast about spreadsheets was recommended to me by colleagues at the CWRA conference in Lethbridge...

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Einstein headshot with Aristotle quote.

The most passionate people involved in the water monitoring industry all care deeply about the preservation of traceable provenance for their data. To people on the outside this can seem like an indulgence that adds a burden of work to the data management process with little apparent benefit. The benefit is ‘verifiable truth’, a distinction with little value. Until it matters!...

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An image of blind people, rating curve, and Goldilocks.

While there must be an underlying true relation between water level at a given place and time and the corresponding discharge, our experience of that truth is limited to gauging observations from which we must infer the totality of the relationship. It is generally true that if you give the same set of data to "n" different hydrographers they will produce "n" different discharge hydrographs....

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