Water News

Not-so-new Water News can still be useful. Some of our links are only promoted on the sidebar for a short time, so this is where you can browse through past links that we considered to be news-worthy.

Propagation of Stage Measurement Uncertainties to Streamflow Time Series

EGU abstract only. Systematic errors due to gauge calibration against a reference gauge and non-systematic errors due to intstrument resolution and precision are evaluated within a Bayesian framework for error propagation. In some cases streamflow uncertainty is mainly due to errors in stage. Discrimination between systematic and non-systematic errors is especially important for long-term flow averages.

Understanding the Spatial and Temporal Variability of Water Sources in a Humid Forested Catchment

EGU abstract only. Three component hydrograph separation in a sampled event shows that 3% – 14% is rainfall, 45% to 58% is soil water and 30% to 46% is groundwater source. At the beginning of the event streamflow is mainly composed of riparian groundwater.  With increasing rainfall amount streamflow is principally influenced by soil water and rain water. At the end of the event a sharp rise in the water table on the hillslopes and the development of subsurface connectivity contribute to sustain groundwater in the lower part of the catchment producing a marked streamflow response.

Calculate Your Water Footprint

You use water indoors, outdoors, and you use virtual water. Add it all up and find out what your dependency is on clean, safe and secure water supply. Education and improved public awareness can be extremely important in resolving water problems.

GCOS Implementation Plan 2016

The Global Climate Observing System draft  implementation plan is now open for comments until September 5, 2016. The 2016 plan is not an update but a new plan taking into account recent developments in earth observation science and policy. It won’t be re-written for another 10 years. With respect to river discharge the plan reports: “Need to improve reporting to data centres and access to data (some data are not available or arrive many years late). Observational requirements for a significant number of countries are poorly documented. Future potential of satellites is being explored. Sharing of historic data should be improved.”

Algal Blooms Are No Accident For Florida Everglades and Estuaries

What are sustainable levels of nutrient loading in your watersheds? Lakes, reservoirs and waterways everywhere are reaching a tipping point of cumulative effects. If we learn nothing from the experiences of South Florida, we are complicit in an ecological crime. Neglect and ignorance of the status and trends in water quantity and quality may be the norm, but it doesn’t provide a very compelling excuse.

Launch of Hydropower Technical Working Group: Developing New Criteria for Green Investment: Science Based Focus on Climate Mitigation and Adaptation for Hydro Energy

Solar power is at one end of the spectrum and coal power is at the other end of the spectrum in terms of public perceptions of ‘green’ energy. But what about everything in between? Hydro power involving large storage reservoirs have little public appeal relative to small run-of-river projects. How do you decide how hydro stacks up? The Climate Bonds Standard  hopes to sort this out with the work done by a hydropower Technical Working Group.

Tropical Winds Yield Late-July Record Warmth

Temperatures in the New Zealand winter this year are looking more like a balmy summer’s day. Weather anomalies are the new normal. Pretty soon it will only be newsworthy to report on weather that isn’t unusual in some way – “Breaking news: the weather is close to the historic mean!”