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Hydrology

When Experience Matters: Stream Gauging at the Limits of Technology

The North American Stream Hydrographers (NASH) hosted a Q competition at the Alberta Irrigation Technology Center (AITC) in Lethbridge, Alberta on June 8th. However, this...

Business

Reality by the Numbers – What the Spreadsheet Has Done to Us

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...

Hydrology

How Good Is Good Enough?

The New Zealand Hydrological Society hosted an ADCP flow regatta as part of the Technical Workshop in Dunedin from April 3-6. The field event followed...

Hydrology

Hydrometry & Hydrology – The Next Generation

At Aquatic Informatics, we are encouraged to take an active role in the community and so I was quick to agree when I was recently...

Hydrology

USGS Goes Live With AQUARIUS Time-Series Software

The United States Geological Survey (USGS) has replaced its custom, in-house developed, Automated Data Processing System (ADAPS) originally designed in 1985 with the commercial-off-the-shelf (COTS)...

Hydrology

Messy Rivers are Healthy Rivers

Dr. Ellen Wohl provoked the audience to give thought to how we evaluate river health in her keynote address to the Riverflow 2016 Conference in...

Hydrology

Stage-Discharge Rating Curves – Geophysics or Religion?

Almost everything we know about our global freshwater resources is due to the humble stage-discharge rating curve. The vast majority of all flow data ever...

Hydrology

Drones – Providing a New Perspective on Hydrometry

Unmanned Aerial Vehicles (UAV) also known as drones, can be used for Large-Scale Particle Image Velocimetry to provide cross-sectional hydrometry info.

Hydrology

Extreme Gauging – How to Extend Rating Curves With Confidence

Extreme flows are extremely hard to gauge, hence we get very few gaugings to accurately define the top-end of stage-discharge rating curves. This is a...

Hydrology

Data Rounding and Why You Should Care

To understand why modern data management systems store data to double precision we must consider the distinction between storing and reporting of data.

Hydrology

How to Get Better Flow Measurements Using the Rising Bubble Method

One objective of the Hydrology Corner is to provide a forum where hydrometric problems can be discussed and clever solutions to those problems can be...

Hydrology

The Weaponization of Water Data

Every change in the expected pattern of variability of water supply and quality poses a threat to the security of the water, food and energy...