Skip to main content

Hydrology and Climate Change

27th Feb 2021: Case Studies

The ‘megaberg’ A68 was twice the size of Luxembourg. It has completely melted this year.

Learn more about why melting glaciers are a serious problem:
 http://ow.ly/AZo850I44NW

Earth's Water Cycle Is Changing Dramatically, And Much Faster Than We Predicted

"Freshwater cycles from ocean to air to clouds to rivers and back to the oceans. This constant shuttling can give us the illusion of certainty. Freshwater will always come from the tap. Won't it?

Unfortunately, that's not guaranteed. Climate change is shifting where the water cycle deposits water on land, with drier areas becoming drier still, and wet areas becoming even wetter."

Software could help to save up to 80 per cent of water used on UAE farms

"The UAE's farmers can now use new software that helps to plan crop planting and also calculate how much water their land will need over a year.

A study carried out over many years to trace the flow of sap in date palm trees showed that farmers are using nearly three times as much water as they need to irrigate their plants.

It found that farmers typically irrigate each tree with about 300 litres of water a day.

However, by measuring the amount of sap flowing in the trunk of a date palm, researchers found they could cut that to 180 litres a day during the summer, and to as little as 60 to 80 litres in winter. This would save up to 80 per cent of the water used on the country's farms."

One Woman’s Mission to Fight Water Scarcity in Africa | Earth.Org - Past | Present | Future

"Dr. Sónia Santos Assunção, an experienced geophysicist with extensive experience in soil assessment, first successfully carried out Geophysical exploration to detect underground water in Ghana in 2016 with the support of Geo Analysis that provided the equipment, and given the straight-forward applicability and efficiency of the technologies she used, she decided to extend her scientific project beyond one country. The geophysicist will soon embark on a one-year journey across the African continent, travelling 24,000km to cross a total of 21 countries – from Cairo to Cape Town and from Cape Town to Tunisia – to evaluate the presence of underground sources of water and to teach locals how to acquire geophysical data (available satellite images and information will be provided by AQUAFUTURE Groundwater consultancy)."


Old Posts :





Popular posts from this blog

Eight most common impurities observed in water supplied to domestic households

The water supplied to domestic households has many types of contaminants which have the potential to create health irregularities in the consumer family. Among these contaminants, eight most common impurities were identified, and the type of filter which can remove or reduce them was delineated in the figure. Before procuring a water filter remember to see this chart. It will help to understand the impurities that the selected water filter can remove. Any water filters available in the market are generally made of one or more of these filters. To decide wisely use the concepts of MCDM to select your filters. Compare the filters available in the market with respect to Cost, Contaminant Removal Efficiency, Maintenance requirement, and type of filters used and rate each filter based on these factors with the help of AHP or ANP techniques. The result will be the filter that will be most efficient for your use. You can also use the ODM tool to come to a decision regarding the procurement o...

How to use Goodrich Flood Routing Method for Predicting Outflow Hydrograph of a Reservoir ?

A mathematical method called the Goodrich Method of Flood Routing is used to forecast how much water would flow through a river or channel during a flood. When determining the downstream water flow rate, the channel's geometry, roughness, and slope are all considered. With the use of this technique, hydrologists and engineers can better evaluate the possible effects of flooding and decide how best to safeguard infrastructure and populations. It makes more precise flood prevention measures possible by properly predicting the behaviour of water under different situations. In order to better inform strategies for sustainable development, the Goodrich Method also evaluates how land use patterns affect the likelihood of flooding. It is a flexible tool for planning for and responding to disasters. Clcik below to watch the video :  https://youtu.be/PeizOC0fjKs You may also like : HydroGeek: The newsletter for researchers of water resources https://hydrogeek.substack.com/ Baipatra VSC: E...

Five open source free hydrologic models that you can use to model runoff of micro to macro watersheds

The principal objective of hydrologic models is to forecast the runoff of a surface water body, especially dendritic systems like rivers, streams, etc. The inputs to these models are generally Rainfall/Precipitation, Soil Characteristics, and other Climatic parameters like evapotranspiration, humidity, etc. LULC and geo-morphology are also used as the required input parameters of the hydrologic models. Both input and output of these models are temporally as well as spatially variable. Now the resolution varies with different models. Some models consider all the sub-basins to be a single watershed and determine the output based on the characteristics of this single watershed(lumped).In contrast, some other models will consider the {impact|effect} of each of the sub-basins on the central outflow of the watershed(distributed).In a few models, the entire watershed is divided into grids or units of uniform dimension. However, the accuracy is highest for the models, which considers the {impa...