Open-Source WebGIS WUEMoCA (Water Use Efficiency Monitor in Central Asia)

Open-Source WebGIS WUEMoCA (Water Use Efficiency Monitor in Central Asia)

March 19, 2018

Open-Source WebGIS for Monitoring the Water Use Efficiency in Central Asia

For sustainable water management in Central Asia, remote sensing products provide independent information on land use, crop productivity and water use efficiency, which is made accessible to local decisionmakers through an online map tool.

The target area consists of the agricultural irrigation areas of the Aral Sea basin (about 9 million ha in total) in southern Kazakhstan, Kyrgyzstan, Tajikistan, Turkmenistan, Uzbekistan and northern Afghanistan.

The interactive web map application “Water Use Efficiency Monitor in Central Asia” (WUEMoCA) is designed to improve the use of land and water resources in Central Asian irrigation systems in a sustainable way. The data are based on analysis results from freely accessible climate data and MODIS satellite imagery.

WUEMoCA main view

WUEMoCA main view with map filter (2), selection options (6), spatial (4) (9) and temporal (3) (10) exploration of various indicators (6), download (7) and overview (8) functions. Furthermore: general information in the Header (1), User polygon tool, here not activated (5), button to show Arial map (11).

The visualization concept allows for selection by users

  • 15 indicators (e.g., land use intensity, crop yield, water availability)
  • 10 crop types (e.g., cotton, wheat and rice)
  • 7 aggregation levels (e.g., provinces, districts, hydrological units)
  • 18 years (2000-2017).

Sober numbers are vividly presented in their spatial distribution (as maps) and temporal development (as diagrams).

User interactions for on-the-fly calculations are possible:

  • draw or upload own aggregation polygons (e.g., water supply zones)
  • insert or upload water intake values for a specific area

All results, also user-driven, are exportable for further analysis (e.g., as Shapefile or Excel table).

The applied research project CAWa is characterized by

  • cooperative concept development (indicator definitions, functions, workflows, logic) together with the University of Wuerzburg, Germany and the Scientific Information Center Tashkent, Uzbekistan (SIC ICWC)
  • integration of user requirements from the water management
  • transfer of the system architecture and the know-how into the region

User polygon tool

WUEMoCA User polygon tool (1) (draw or upload polygons, calculate indicators on-the-fly (2), visualize (3) and export the results as Excel or Shapefile) with Water Use Efficiency calculation tool (water intake input form) (4)

Outlook: the new interactive Productivity calculation tool will be integrated soon.

you may also like:

‘Super Test Site Würzburg’ project meeting

‘Super Test Site Würzburg’ project meeting

After the successful "Super Test Site Würzburg" measurement campaign in June (please see here: https://remote-sensing.org/super-test-site-wurzburg-from-the-idea-to-realization/ ), the core team from the University of Würzburg, the Karlsruhe Institute of Technology,...

EORC Talk: Geolingual Studies: A New Research Direction

EORC Talk: Geolingual Studies: A New Research Direction

On July 19th, Lisa Lehnen and Richard Lemoine Rodríguez, two postdoctoral researchers of the Geolingual Studies project, gave an inspiring presentation at the EORC talk series.   In the talk titled "Geolingual Studies – a new research direction", they...

EO support for UrbanPArt field work

EO support for UrbanPArt field work

From May to September, Karla Wenner, a PhD student at the Juniorprofessorship for Applied Biodiversity Science, will be sampling urban green spaces and semi-natural grasslands in Würzburg as part of the UrbanPArt project. Our cargo bikes support the research project...

Cinematic drone shots

Cinematic drone shots

We spend quite some time in the field conducting field work, from lidar measurements to vegetation samples in order to correlate it with remote sensing data to answer various research questions concerning global change. Field work is always a 24/7 work load and...

Sommer event at DLR EOC

Sommer event at DLR EOC

Some of our staff joined the DLR EOC summer event and spend the day talking with various colleagues from DLR as well as experiencing the newest developments such as the virtual reality experiences by the department of Nils Sparwasser. Beside various topical...

Media reports on our work

Media reports on our work

We recently reported on our study published in The LANCET Planetary Health Journal on the impact of urban configuration types on urban heat islands, air pollution, CO2 emissions, and mortality – please see here:...