Your search found 5 records
1 Leibundgut, C.; McDonnell, J.; Schultz, G. (Eds.) 1999. Integrated methods in catchment hydrology: Tracer, remote sensing and new hydrometric techniques. Wallingford, UK: International Association of Hydrological Sciences (IAHS). ix, 284p. (IAHS publication 258)
Hydrology ; Catchment areas ; Remote sensing ; Satellite surveys ; GIS ; Rainfall-runoff relationships ; Models ; Calibrations ; Mountains ; Forests ; Evaporation ; Soil water ; Clay soils ; Sandy soils ; River basins ; Infiltration ; Groundwater ; Simulation ; Precipitation ; Soil properties ; Erosion / Japan / Romania / Germany / Spain / UK / Scotland / Slovak Republic / Switzerland / New Zealand / Germany / Kanto Mountains / Lake Stechlin / DGmbovita River / Catalonia / Danube River Basin / Vah Basin / Kumaun Lesser Himalayas / Lake Nainital
(Location: IWMI-HQ Call no: 551.48 G000 LEI Record No: H027482)
2 Herrmann, A.; Bahls, S.; Stichler, W.; Gallart, F.; Latron, J. 1999. Isotope hydrological study of mean transit times and related hydrogeological conditions in Pyrenean experimental basins (Vallcebre, Catalonia) In Leibundgut, C.; McDonnell, J.; Schultz, G. (Eds.), Integrated methods in catchment hydrology: Tracer, remote sensing and new hydrometric techniques. Wallingford, UK: IAHS. pp.101-109.
Hydrology ; Flow ; Models ; Catchment areas ; Groundwater ; Runoff / Spain / Barcelona / Catalonia / Vallcebre
(Location: IWMI-HQ Call no: 551.48 G000 LEI Record No: H027491)
3 Maloszewski, P.; Witczak, S.; Malina, G. (Eds.) 2013. Groundwater quality sustainability. Leiden, Netherlands: CRC Press - Balkema. 350p.
Groundwater management ; Water quality ; Groundwater recharge ; Nitrates ; Water pollution ; Drinking water ; Sediment ; Dairy farms ; Fertilizers ; Early warning systems ; Aquifers ; Filtration ; Infiltration ; Hydrogeology ; Arsenic ; Risk assessment ; Decision support systems ; Models ; Catchment areas ; Flow discharge ; Monitoring ; River basins / Germany / Southern Spain / Russia / Hungary / Portugal / Croatia / Syria / Saxony / Mediterranean River Basin / Budapest / Catalonia
(Location: IWMI HQ Call no: 333.91 G000 MAL Record No: H045610)
(0.38 MB)
4 Bazzi, H.; Baghdadi, N.; Fayad, I.; Zribi, M.; Belhouchette, H.; Demarez, V. 2020. Near real-time irrigation detection at plot scale using sentinel-1 data. Remote Sensing, 12(9):1456. (Special issue: Irrigation Mapping Using Satellite Remote Sensing) [doi: https://doi.org/10.3390/rs12091456]
Irrigated farming ; Parcels ; Satellite imagery ; Remote sensing ; Mapping ; Soil moisture ; Normalized difference vegetation index ; Models ; Precipitation ; Rain / France / Spain / Montpellier / Tarbes / Catalonia
(Location: IWMI HQ Call no: e-copy only Record No: H049770)
(7.48 MB) (7.48 MB)
In the context of monitoring and assessment of water consumption in the agricultural sector, the objective of this study is to build an operational approach capable of detecting irrigation events at plot scale in a near real-time scenario using Sentinel-1 (S1) data. The proposed approach is a decision tree-based method relying on the change detection in the S1 backscattering coefficients at plot scale. First, the behavior of the S1 backscattering coefficients following irrigation events has been analyzed at plot scale over three study sites located in Montpellier (southeast France), Tarbes (southwest France), and Catalonia (northeast Spain). To eliminate the uncertainty between rainfall and irrigation, the S1 synthetic aperture radar (SAR) signal and the soil moisture estimations at grid scale (10 km × 10 km) have been used. Then, a tree-like approach has been constructed to detect irrigation events at each S1 date considering additional filters to reduce ambiguities due to vegetation development linked to the growth cycle of different crops types as well as the soil surface roughness. To enhance the detection of irrigation events, a filter using the normalized differential vegetation index (NDVI) obtained from Sentinel-2 optical images has been proposed. Over the three study sites, the proposed method was applied on all possible S1 acquisitions in ascending and descending modes. The results show that 84.8% of the irrigation events occurring over agricultural plots in Montpellier have been correctly detected using the proposed method. Over the Catalonian site, the use of the ascending and descending SAR acquisition modes shows that 90.2% of the non-irrigated plots encountered no detected irrigation events whereas 72.4% of the irrigated plots had one and more detected irrigation events. Results over Catalonia also show that the proposed method allows the discrimination between irrigated and non-irrigated plots with an overall accuracy of 85.9%. In Tarbes, the analysis shows that irrigation events could still be detected even in the presence of abundant rainfall events during the summer season where two and more irrigation events have been detected for 90% of the irrigated plots. The novelty of the proposed method resides in building an effective unsupervised tool for near real-time detection of irrigation events at plot scale independent of the studied geographical context.
5 Jorge-Garcia, D.; Estruch-Guitart, V.; Aragones-Beltran, P. 2023. How geographical factors and decision-makers' perceptions influence the prioritization of ecosystem services: analysis in the Spanish rice field areas in RAMSAR Mediterranean wetlands. Science of The Total Environment, 869:161823. (Online first) [doi: https://doi.org/10.1016/j.scitotenv.2023.161823]
Ecosystem services ; Rice fields ; Decision making ; Environmental policies ; Wetlands ; Stakeholders ; Models ; Biodiversity / Spain / Mediterranean Region / Guadalquivir Marshes / Catalonia / Ebro Delta / Albufera Natural Park
(Location: IWMI HQ Call no: e-copy only Record No: H051697)
https://www.sciencedirect.com/science/article/pii/S0048969723004382/pdfft?md5=e075eb9dd0f3cb991aecdf8cfdee7525&pid=1-s2.0-S0048969723004382-main.pdf
https://vlibrary.iwmi.org/pdf/H051697.pdf
https://vlibrary.iwmi.org/pdf/H051697.pdf
(1.48 MB) (1.48 MB)
Mediterranean wetlands provide many ecosystem services to humans and other organisms. However, these services are being increasingly damaged. The prioritization of ecosystem services is essential to start a decision-making process focused on environmental policies, highlighting the necessity of equilibrium between sustainability and human well-being. This study analyzes the similarities and differences among the ecosystem services provided by the Spanish RAMSAR Mediterranean wetlands, where rice production is the main economic activity. These areas are the Ebro Delta, the Albufera Natural Park and the Guadalquivir Marshes (Doñana Biosphere Reserve). Despite being different areas, environmental and agricultural policies sometimes treat their characteristics without distinction since they are conceptually englobed in the same category. This analysis aims to study whether geographical and sociocultural factors could influence the prioritization of ecosystem services. The prioritization of the three study areas was conducted using the Analytic Network Process (ANP), a multi-criteria decision-making method which allows decision-makers to manage the ecosystem's complexity. The results are helpful for future policies and in understanding the complex network of interconnections among ecosystem services. Additionally, results show that there are statistically significant differences in priorities among the three study areas due to geographical and cultural reasons. Moreover, results have also shown that decision-makers' judgements influenced the priorities depending on their background and personal or professional preferences. It emphasizes the necessity of implementing environmental policies from a theoretical and global scale to a participatory and local one, considering a broader range of stakeholders' perceptions to reflect the complexity of the ecosystem services network.
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