Hydrology Corner Blog

Hydrology Corner is a place for water industry experts to read and discuss best practices. This forum allows you an opportunity to voice your opinions about what can and should be done to build toward a desired future where decisions concerning water are well informed by adequate data.

Man vs Nature – Aqueduct vs Stream: Monitoring, Understanding and Protecting

Aqueducts are to natural streams what wheat fields are to tall grass prairies. There is an undeniable elegance in form that comes from simplification of function to unity. Whereas any pristine stream serves many ecological, geomorphic, social, spiritual and economic functions, an aqueduct exists for the sole function of moving water from one place to…

The Future of Water Data Sharing – Discoverable, Searchable and Accessible

The Open Geospatial Consortium (OGC) is seeking public comment on part 1 of the new WaterML 2.0 data standard for time-series data encoding Aquatic Informatics is actively participating in the Hydrological Domain Working Group, which has a mandate from both the OGC and the World Meteorological Organization (WMO), to explore issues of hydrological data interoperability….

North American Stream Hydrographers

Measuring and monitoring streamflow is a place-based activity. Hydrographers are isolated from each other because of the size of the geographic domain each one can cover. Training opportunities and technology workshops are often organized along institutional lines. Hydrographers often have closer communication with distant colleagues in the same institution than they have with those operating…

62nd OGC Technical Committee Meeting – Boulder, Colorado

I attended 62nd OGC Technical Committee meeting in Boulder, Colorado with my colleague Stuart Hamilton in September. As most of you probably know, the Open Geospatial Consortium (OGC) is an international industry consortium of 438 companies, government agencies and universities participating in a consensus process to develop publicly available standards for geospatial data exchange protocol…

Central Services – New software for the Water Survey of Canada

CENTRAL SERVICES – New software makes data collection and analysis easier and faster for the Water Survey of Canada. “Annual data doesn’t help Saskatchewan or Winnipeg when there’s a flood event happening— we need to provide data to our customers instantaneously.” —AJ Leitch Policies that protect our water are borne, in part, of good water…

Accuracy and Error of Hydrological Measurements – Part 2

Click here to read Part 1 – background about measurement accuracy and error, definitions and more This series of discussions are to first give you a scientific picture of hydrological measurement errors and then open the interesting discussion of how to automatically detect, validate and correct erroneous sensor data given the observations from Data Acquisition…

Accuracy and Error of Hydrological Measurements – Part 1

Environmental agencies and organizations invest huge amount of money to build the required hardware and software infrastructure for collecting and storing data from field sensors in order to extract valuable information hidden in the time series numbers about the environment. If the sensor measurements could not accurately represent the environmental parameter of interest, the extracted…

Emerging Data Analysis & Production Techniques

Advances in communications and data management technologies have allowed data providers to meet the latent demand for hydrometric data in support of adaptive management of our water resources. Discharge is a derived variable for which considerable care is required to ensure reliable results. The hydrometric data production process has historically been managed on an annual…

Timely, Affordable and Accurate Data? Pick Any Two Out of Three

High quality data are accurate, timely, meaningful and complete. Fitness-for-purpose is achieved if the stated or implied needs, or expectations, of the end-user of the data are met. The design of a quality management system starts with specification of end-user needs and expectations. These expectations are inter-dependent. Consider the situational irony of the sign stating:…

Your Voice, Your Opinions and the Future of Hydrometric Data Management

This blog forum is your opportunity to voice your opinions about what can, and should be, done now to build toward a desired future for hydrometric data and water resource decision-making. As a regular contributor I personally invite an interactive exchange of knowledge and promotion of ideas on how to advance the science and practice…