Hydrology Corner Blog: hydrological data

Mitigating Risk for Risk Mitigation: What L’Aquila Means for Water Monitoring

On October 22, 2012, six Italian scientists and a government official were sentenced to 6 years in jail, given lifetime bans on holding public office, and ordered to pay compensation of €7.8m in connection with the L’Aquila earthquake. The 6.3 magnitude earthquake injured over 1,000 people and resulted in 300 deaths. The judgment was based…

Real or Not? Discharge as a Virtual Variable

Discharge is such a great variable It is so rich in information about everything that has happened upstream and so informative about what will be happening downstream. The dynamics of streamflow are tightly linked to both ecosystem function and economic viability. If only discharge data were real. Beven and Westerberg (2011) argue that “some periods…

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…