Water Resources Assessment using Remote-Sensing Data

The rationale and purpose of hydroinformatics is to develop a new relationship between the stakeholders and the users and suppliers of the systems: to offer the basis (systems) which supply useable results, the validity of which cannot be put in reasonable doubt by any of the stakeholders involved. We are only in the initial stages of this process. Hydroinformatics changes the way in which hydraulics, hydrology and water resources studies generally are applied in society. In order to achieve this, hydroinformatics places itself deliberately on the market for products and services in this area. Water is a commodity of high market value. So are information and the means to manage information. There are already specific means for the “ICT merchandising of goods” and these are currently oriented towards the management of water and connected resources in a project involving several major European hydraulics institutes. Hydroinformatics deals with these specific goods, this market and, increasingly, this specific way of marketing.

Hydroinformatics is a technology built around developments and applications of systems which are, for their users, objective systems. A tool is objective if the users are involved in its definition, if they can easily understand the results and use them, if they have the possibility to input their own hypotheses into the system and see the consequences - as well as to show these to other stakeholders. Thus, for example, a hydroinformatics system of managing agricultural pollution in a catchment basin demonstrates the consequences of different cultural practices. If the tool is objective, the stakeholders might criticise a hypothesis of cultural practice (hence policies) leading to undesirable results, but not the tool. Thus the tool creates a possibility of negotiation and trade-offs based on merit and not on irrational sentiments.

The systems with which we are concerned include not only physical, chemical and biological processes, but also social, including cultural, economic, political, sociological, legal and other such aspects. The hydroinformation correspondingly always works in a team, and may indeed create the sociotechnical means through which the team functions. A hydroinformatics system has to liaise with all these factors through the inclusion of its users. The users become part of the system.

Hydroinformatics is limited to aquatic environments, to water and all with which water interacts. It is a technology, not a science, and we know that technologies often change more rapidly than sciences. Meanwhile it gives to hydraulics and hydrology a chance of synergism with ICT and thus avoids the situation of being simple suppliers of solutions or modelling software to be encapsulated. Socially, such “simple” encapsulations might be disastrous to professionals and institutions in this field because, on the one hand, would not guarantee the scientific quality of the encapsulated material and, on the other hand, it may lead to the death of hydraulic and hydrological research, i.e. to ending all progress in our field. The social roles of hydroinformatics within IWA might thus be expressed as those of “proper encapsulation” and “creating a synergy between ICT and hydraulics and hydrology”.

In 2016 and onwards, our group will continue to contribute to and organize major international conferences and workshops on hydroinformatics around the world, will produce publications to achieve wide dissemination of shared experiences and new knowledge, and will aim to offer solutions, best practices, and roadmaps to hydroinformatics challenges faced in different parts of the world.

The UDSG fosters and conducts fundamental and applied research on urban drainage, and promotes innovative approaches to urban drainage worldwide. During the past decades, research of urban drainage has moved from studying the traditional protection of urban population and infrastructure against adverse impacts of rain and snow towards a more holistic approach, which strives to provide even a better level of protection, in different climates, by seizing opportunities for designing and operating urban drainage as a system of sustainable green, blue and grey infrastructure elements optimizing the beneficial uses of urban rainwater and stormwater. Green urban infrastructure in reducing the impacts of climate variability and change on urban drainage may become transformational in urban drainage. A list of core issues includes urban rainfall in current and future climates; quantity and quality of urban stormwater and combined sewer overflows; advanced management of stormwater in urban areas, with emphasis on source controls, rainwater harvesting, low impact development and water sensitive urban design; operation and control of urban drainage, including sewer systems and receiving waters, in real time; modelling of whole systems or their elements; and, applicability of these approaches in regions with various climates, governance, and various levels of the economic development.

As the global population is shifting from rural to urban areas, and the urban population is quickly growing, the importance of urban water is rising and will continue to do so in the foreseeable future. This urban population creates high demands on water services, among which urban drainage plays an important role, within the concept of the urban water cycle. The provision and sustainability of such services, in the current and future climates, represent a great challenge to urban planners, water managers, decision makers, and NGOs worldwide.

The Urban Drainage SG (UDSG) contributes to broader IWA efforts within the general heading “Urban water Management”. Typical activities of the UDSG are planned cyclically around the group’s important conferences, which typically feature presentations of the group deliverables. Three such conferences are planned for 2016 and 2017.