GRACE observes the natural and irrigation-induced regional redistribution of water storage in Central Asia

Study Region: Central Asia region, where snow and glacier covered Tian Shan and Pamir mountains serve as “Water Tower” to supply populated areas downstream with essential freshwater resources, predominantly for agricultural production in summer and for energy production in winter. Study Focus: To id...

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Main Authors: Abror Gafurov, Valeria Selyuzhenok, Milena Latinovic, Heiko Apel, Adkham Mamaraimov, Abdulkhakim Salokhiddinov, Eva Boergens, Andreas Güntner
Format: Article
Language:English
Published: Elsevier 2024-12-01
Series:Journal of Hydrology: Regional Studies
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Online Access:http://www.sciencedirect.com/science/article/pii/S2214581824003434
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author Abror Gafurov
Valeria Selyuzhenok
Milena Latinovic
Heiko Apel
Adkham Mamaraimov
Abdulkhakim Salokhiddinov
Eva Boergens
Andreas Güntner
author_facet Abror Gafurov
Valeria Selyuzhenok
Milena Latinovic
Heiko Apel
Adkham Mamaraimov
Abdulkhakim Salokhiddinov
Eva Boergens
Andreas Güntner
author_sort Abror Gafurov
collection DOAJ
description Study Region: Central Asia region, where snow and glacier covered Tian Shan and Pamir mountains serve as “Water Tower” to supply populated areas downstream with essential freshwater resources, predominantly for agricultural production in summer and for energy production in winter. Study Focus: To identify the impact of irrigation practices on large-scale water storage by analyzing the spatial dynamics of water storage in Central Asia from sink to source using satellite-based Terrestrial Water Storage (TWS) variations from six GRACE(-FO) solutions and snow cover from MODIS. New Hydrological Insights for the Region: Snow Cover Index (SCI), a new proxy index for snow accumulation shows that GRACE-based TWS dynamics agree very well with snow accumulation and melt for seasonal and inter-annual variations. The spatial patterns of seasonal TWS variations show water re-distribution from the mountain region to the downstream parts, where agricultural fields are irrigated. In these areas, the maximum storage in summer observed with the majority of GRACE solutions can be attributed to the diversion of water inflow from the mountain ranges into vast areas of agricultural land. The ability of GRACE to observe both natural and human-induced water re-distribution in Central Asia indicates its potential for regional-scale monitoring applications in water resources management.
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spelling doaj-art-31f32230cee04c4a991e56fce553e37b2024-12-08T06:10:34ZengElsevierJournal of Hydrology: Regional Studies2214-58182024-12-0156101994GRACE observes the natural and irrigation-induced regional redistribution of water storage in Central AsiaAbror Gafurov0Valeria Selyuzhenok1Milena Latinovic2Heiko Apel3Adkham Mamaraimov4Abdulkhakim Salokhiddinov5Eva Boergens6Andreas Güntner7GFZ German Research Centre for Geoscience, Telegrafenberg, Potsdam 14473, Germany; Humboldt Universität zu Berlin, Unter den Linden 6, Berlin 10117, Germany; Corresponding author at: GFZ German Research Centre for Geoscience, Telegrafenberg, Potsdam 14473, Germany.GFZ German Research Centre for Geoscience, Telegrafenberg, Potsdam 14473, GermanyGFZ German Research Centre for Geoscience, Telegrafenberg, Potsdam 14473, GermanyGFZ German Research Centre for Geoscience, Telegrafenberg, Potsdam 14473, GermanyUniversity of Potsdam, Karl-Liebknecht-Str. 24-25, Potsdam 14476, GermanyTashkent Institute of Irrigation and Agricultural Mechanization Engineers (TIIAME), National Research University, Kari Niyazov 39, Tashkent 100000, UzbekistanGFZ German Research Centre for Geoscience, Telegrafenberg, Potsdam 14473, GermanyGFZ German Research Centre for Geoscience, Telegrafenberg, Potsdam 14473, Germany; University of Potsdam, Karl-Liebknecht-Str. 24-25, Potsdam 14476, GermanyStudy Region: Central Asia region, where snow and glacier covered Tian Shan and Pamir mountains serve as “Water Tower” to supply populated areas downstream with essential freshwater resources, predominantly for agricultural production in summer and for energy production in winter. Study Focus: To identify the impact of irrigation practices on large-scale water storage by analyzing the spatial dynamics of water storage in Central Asia from sink to source using satellite-based Terrestrial Water Storage (TWS) variations from six GRACE(-FO) solutions and snow cover from MODIS. New Hydrological Insights for the Region: Snow Cover Index (SCI), a new proxy index for snow accumulation shows that GRACE-based TWS dynamics agree very well with snow accumulation and melt for seasonal and inter-annual variations. The spatial patterns of seasonal TWS variations show water re-distribution from the mountain region to the downstream parts, where agricultural fields are irrigated. In these areas, the maximum storage in summer observed with the majority of GRACE solutions can be attributed to the diversion of water inflow from the mountain ranges into vast areas of agricultural land. The ability of GRACE to observe both natural and human-induced water re-distribution in Central Asia indicates its potential for regional-scale monitoring applications in water resources management.http://www.sciencedirect.com/science/article/pii/S2214581824003434Total water storageWater resourcesCentral AsiaSnow coverIrrigation
spellingShingle Abror Gafurov
Valeria Selyuzhenok
Milena Latinovic
Heiko Apel
Adkham Mamaraimov
Abdulkhakim Salokhiddinov
Eva Boergens
Andreas Güntner
GRACE observes the natural and irrigation-induced regional redistribution of water storage in Central Asia
Journal of Hydrology: Regional Studies
Total water storage
Water resources
Central Asia
Snow cover
Irrigation
title GRACE observes the natural and irrigation-induced regional redistribution of water storage in Central Asia
title_full GRACE observes the natural and irrigation-induced regional redistribution of water storage in Central Asia
title_fullStr GRACE observes the natural and irrigation-induced regional redistribution of water storage in Central Asia
title_full_unstemmed GRACE observes the natural and irrigation-induced regional redistribution of water storage in Central Asia
title_short GRACE observes the natural and irrigation-induced regional redistribution of water storage in Central Asia
title_sort grace observes the natural and irrigation induced regional redistribution of water storage in central asia
topic Total water storage
Water resources
Central Asia
Snow cover
Irrigation
url http://www.sciencedirect.com/science/article/pii/S2214581824003434
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