Global Water Governance: Managing complexity on a Global Scale

2008 ◽  
pp. 107-120 ◽  
Author(s):  
Maria Schnurr
Keyword(s):  
Water Governance ◽  
Global Scale ◽  
Managing Complexity ◽  
Global Water

scholarly journals Averting the Global Water Crisis: Three Considerations for a New Decade of Water Governance

2020 ◽  
Vol 21 (1) ◽  
pp. 105-113
Author(s):  
Cora Kammeyer ◽  
Ross Hamilton ◽  
Jason Morrison
Keyword(s):  
Water Governance ◽  
Water Crisis ◽  
Global Water

scholarly journals UN–Water and its Role in Global Water Governance

2013 ◽  
Vol 18 (3) ◽  
Author(s):  
Thomas Baumgartner ◽  
Claudia Pahl-Wostl
Keyword(s):  
Water Governance ◽  
Global Water

scholarly journals A framework to regionalize conceptual model parameters for global hydrological modeling

2020 ◽  
Author(s):  
Wenyan Qi ◽  
Jie Chen ◽  
Lu Li ◽  
Chong-yu Xu ◽  
Jingjing Li ◽  
...  
Keyword(s):  
Water Resources ◽  
Conceptual Model ◽  
Hydrological Modeling ◽  
Global Scale ◽  
Spatial Proximity ◽  
Model Parameters ◽  
Hydrological Models ◽  
Physical Similarity ◽  
Similarity Method ◽  
Global Water

Abstract. To provide an accurate estimate of global water resources and help to formulate water allocation policies, global hydrological models (GHMs) have been developed. However, it is difficult to obtain parameter values for GHMs, which results in large uncertainty in estimation of the global water balance components. In this study, a framework is developed for building GHMs based on parameter regionalization of catchment scale conceptual hydrological models. That is, using appropriate global scale regionalization scheme (GSRS) and conceptual hydrological models to simulate runoff at the grid scale globally and the Network Response Routing (NRF) method to converge the grid runoff to catchment streamflow. To achieve this, five regionalization methods (i.e. the global mean method, the spatial proximity method, the physical similarity method, the physical similarity method considering distance, and the regression method) are first tested for four conceptual hydrological models over thousands medium-sized catchments (2500–50000 km2) around the world to find the appropriate global scale regionalization scheme. The selected GSRS is then used to regionalize conceptual model parameters for global land grids with 0.5°×0.5° resolution on latitude and longitude. The results show that: (1) Spatial proximity method with the Inverse Distance Weighting (IDW) method and the output average option (SPI-OUT) offers the best regionalization solution, and the greatest gains of the SPI-OUT method were achieved with mean distance between the donor catchments and the target catchment is no more than 1500 km. (2) It was found the Kling-Gupta efficiency (KGE) value of 0.5 is a good threshold value to select donor catchments. And (3) Four different GHMs established based on framework were able to produce reliable streamflow simulations. Overall, the proposal framework can be used with any conceptual hydrological model for estimating global water resources, even though uncertainty exists in terms of using difference conceptual models.

scholarly journals The Global Water Body Layer from TanDEM-X Interferometric SAR Data

2021 ◽  
Vol 13 (24) ◽  
pp. 5069
Author(s):  
Jose-Luis Bueso-Bello ◽  
Michele Martone ◽  
Carolina González ◽  
Francescopaolo Sica ◽  
Paolo Valdo ◽  
...  
Keyword(s):  
Water Body ◽  
European Space Agency ◽  
Water Layer ◽  
Global Scale ◽  
Data Set ◽  
Primary Input ◽  
Water Detection ◽  
Space Agency ◽  
Digital Elevation ◽  
Global Water

The interferometric synthetic aperture radar (InSAR) data set, acquired by the TanDEM-X (TerraSAR-X add-on for Digital Elevation Measurement) mission (TDM), represents a unique data source to derive geo-information products at a global scale. The complete Earth’s landmasses have been surveyed at least twice during the mission bistatic operation, which started at the end of 2010. Examples of the delivered global products are the TanDEM-X digital elevation model (DEM) (at a final independent posting of 12 m × 12 m) or the TanDEM-X global Forest/Non-Forest (FNF) map. The need for a reliable water product from TanDEM-X data was dictated by the limited accuracy and difficulty of use of the TDX Water Indication Mask (WAM), delivered as by-product of the global DEM, which jeopardizes its use for scientific applications, as well. Similarly as it has been done for the generation of the FNF map; in this work, we utilize the global data set of TanDEM-X quicklook images at 50 m × 50 m resolution, acquired between 2011 and 2016, to derive a new global water body layer (WBL), covering a range from −60∘ to +90∘ latitudes. The bistatic interferometric coherence is used as the primary input feature for performing water detection. We classify water surfaces in single TanDEM-X images, by considering the system’s geometric configuration and exploiting a watershed-based segmentation algorithm. Subsequently, single overlapping acquisitions are mosaicked together in a two-step logically weighting process to derive the global TDM WBL product, which comprises a binary averaged water/non-water layer as well as a permanent/temporary water indication layer. The accuracy of the new TDM WBL has been assessed over Europe, through a comparison with the Copernicus water and wetness layer, provided by the European Space Agency (ESA), at a 20 m × 20 m resolution. The F-score ranges from 83%, when considering all geocells (of 1∘ latitudes × 1∘ longitudes) over Europe, up to 93%, when considering only the geocells with a water content higher than 1%. At global scale, the quality of the product has been evaluated, by intercomparison, with other existing global water maps, resulting in an overall agreement that often exceeds 85% (F-score) when the content in the geocell is higher than 1%. The global TDM WBL presented in this study will be made available to the scientific community for free download and usage.

The Generation, Diffusion, and Impact of Innovations in Global Water Governance

2017 ◽  
Vol 59 (1-2) ◽  
pp. 83-105 ◽  
Author(s):  
Dave Huitema ◽  
Sander Meijerink
Keyword(s):  
Water Governance ◽  
Global Water

scholarly journals THE PROTOCOL ON WATER AND HEALTH AS A STRATEGY FOR GLOBAL WATER GOVERNANCE INTEGRATION

2018 ◽  
Vol 68 (1) ◽  
pp. 175-192
Author(s):  
Jorge E. Viñuales
Keyword(s):  
Water Governance ◽  
Development Cooperation ◽  
Health It ◽  
Model Framework ◽  
The World Bank ◽  
Is Integration ◽  
High Level ◽  
Heads Of State ◽  
Global Water ◽  
The Eu

AbstractThe 2018 report issued by a High-Level Panel on Water convened by the UN Secretary-General and the President of the World Bank, and consisting of 11 sitting heads of State and government, concluded that one of the main challenges facing global water governance is integration. Finding ways of integrating the different layers and areas of global water governance will, in turn, require institutional innovation. This article explores the potential of a well-tested yet largely under-studied approach to integration, namely that provided by the UNECE/WHO-Europe Protocol on Water and Health. It proposes that the Protocol be relied on both as an instrument and as a model that can be harnessed in four main ways: accession by a State or a regional organization (eg the EU) to the Protocol; amendment to give the Protocol a global scope; as a model framework for development, cooperation and foreign policy; as a model framework for the adoption of a contextualized instrument in another regional context.

Malthus in the Middle East

2020 ◽  
pp. 15-40
Author(s):  
Hussein A. Amery
Keyword(s):  
Climate Change ◽  
Water Management ◽  
Political Economy ◽  
Water Governance ◽  
River Basins ◽  
Historical Record ◽  
Essential Elements ◽  
Cumulative Effects ◽  
Infrastructure Development ◽  
Global Water

Using a Malthusian framework, Chapter 3 draws parallels between political economy of the Southeast Anatolian (Güneydoğu Anadolu Projesi or GAP) dam project in Turkey that affects water flow to the downstream neighbors of Syria and Iraq on the Tigris and Euphrates Rivers and the Grand Ethiopian Renaissance Dam (GERD) nearing completion on the Blue Nile in Ethiopia – a project that will impound waters destined for Egypt. It finds that in each case, geographical and hydropolitical positioning are the essential elements of downstream state insecurity and therefore a significant causes of deteriorating relations within the respective river basins. While noting that although the riparian states in question have long histories of tension and distrust, the historical record shows that the vast majority of global water disputes are settled peacefully. The chapter presents evidence that in the lower riparian states, rapid population growth, infrastructure development, and climate change present adverse and cumulative effects on water supplies and water management. The author concludes with the argument that the convergence of these factors points to a likely future of water scarcity-induced conflict absent the introduction of policies to boost irrigation efficiency and improve water governance.

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