TY  - JOUR
A1  - Smetanová, Anna
A1  - Müller, Anne
A1  - Zargar, Morteza
A1  - Suleiman, Mohamed A.
A1  - Gholami, Faraz Rabei
A1  - Mousavi, Maryam
T1  - Mesoscale mapping of sediment source hotspots for dam sediment management in data-sparse semi-arid catchments
JF  - Water
N2  - Land degradation and water availability in semi-arid regions are interdependent challenges for management that are influenced by climatic and anthropogenic changes. Erosion and high sediment loads in rivers cause reservoir siltation and decrease storage capacity, which pose risk on water security for citizens, agriculture, and industry. In regions where resources for management are limited, identifying spatial-temporal variability of sediment sources is crucial to decrease siltation. Despite widespread availability of rigorous methods, approaches simplifying spatial and temporal variability of erosion are often inappropriately applied to very data sparse semi-arid regions. In this work, we review existing approaches for mapping erosional hotspots, and provide an example of spatial-temporal mapping approach in two case study regions. The barriers limiting data availability and their effects on erosion mapping methods, their validation, and resulting prioritization of leverage management areas are discussed.
KW  - reservoir siltation
KW  - water security
KW  - water management
KW  - data sharing
KW  - spatial-temporal
KW  - erosion hotspots
KW  - mapping
KW  - global datasets
KW  - mesoscale
KW  - leverage areas
Y1  - 2020
U6  - https://doi.org/10.3390/w12020396
SN  - 2073-4441
VL  - 12
IS  - 2
SP  - 1
EP  - 24
PB  - MDPI
CY  - Basel
ER  -