A5014828316- Climate variability and models
- Hydrology and Drought Analysis
- Plant Water Relations and Carbon Dynamics
- Hydrology and Watershed Management Studies
- Urban Heat Island Mitigation
- Remote Sensing in Agriculture
- Greenhouse Technology and Climate Control
- Precipitation Measurement and Analysis
- Soil Moisture and Remote Sensing
- Solar Radiation and Photovoltaics
- Flood Risk Assessment and Management
- Soil and Unsaturated Flow
- Irrigation Practices and Water Management
- Climate change impacts on agriculture
- Cryospheric studies and observations
- Tree-ring climate responses
- Atmospheric and Environmental Gas Dynamics
- Meteorological Phenomena and Simulations
- Forest ecology and management
- Horticultural and Viticultural Research
- Land Use and Ecosystem Services
- Water resources management and optimization
- Atmospheric Ozone and Climate
- Climate change and permafrost
- Date Palm Research Studies
Joint Research Centre
2016-2025
Politecnico di Milano
2022-2024
Joint Research Centre
2024
European Commission
2020-2022
University of Palermo
2008-2014
United States Department of Agriculture
2012-2014
Agricultural Research Service
2012-2014
K Lab (United States)
2012
Abstract. Thermal infrared (TIR) remote sensing of land-surface temperature (LST) provides valuable information about the sub-surface moisture status required for estimating evapotranspiration (ET) and detecting onset severity drought. While empirical indices measuring anomalies in LST vegetation amount (e.g., as quantified by Normalized Difference Vegetation Index; NDVI) have demonstrated utility monitoring ET drought conditions over large areas, they may provide ambiguous results when...
California's Central Valley grows a significant fraction of grapes used for wine production in the United States. With increasing vineyard acreage, reduced water availability much California, and competing use interests, it is critical to be able monitor regional evapotranspiration (ET) over large areas, but also detail at individual field scales improve management within these viticulture systems. This can achieved by integrating remote sensing data from multiple satellite systems with...
Continuous monitoring of daily evapotranspiration (ET) at field scale can be achieved by combining thermal infrared remote sensing data information from multiple satellite platforms, given that no single sensor currently exists today with the required spatiotemporal resolution. Here, an integrated approach to field-scale ET mapping is described, multi-scale surface energy balance evaluations and a fusion methodology, namely Spatial Temporal Adaptive Reflectance Fusion Model (STARFM),...
Abstract. Drought events and their impacts vary spatially temporally due to diverse pedo-climatic hydrologic conditions, as well variations in exposure vulnerability, such demographics response actions. While hazard severity frequency of past drought have been studied detail, little is known about the effect management strategies on actual how perceived by relevant stakeholders. In a continental study, we characterised assessed perceptions two recent (2018 2019) Europe examined relationship...
Thermal remote sensing methods for mapping evapotranspiration (ET) exploit the physical interconnection that exists between land‐surface temperature (LST) and evaporative cooling, employing principles of surface energy balance (SEB). Unfortunately, while many applications in water resource management require ET information at daily field spatial scales, current satellite‐based thermal sensors are characterized by either low resolution high repeatability or moderate/high frequency. Here we...
Abstract. Four upscaling methods for estimating daytime actual evapotranspiration (ET) from single time-of-day snapshots, as commonly retrieved using remote sensing, were compared. These assume self-preservation of the ratio between ET and a given reference variable over hours. The analysis was performed eddy covariance data collected at 12 AmeriFlux towers, sampling fairly wide range in climatic land cover conditions. choice energy budget closure method significantly impacted performance...
A correct identification of drought events over vegetated lands can be achieved by detecting those soil moisture conditions that are both unusually dry compared with the 'normal' state and causing severe water stress to vegetation. In this paper, we propose a novel index accounts for mutual occurrence these two means multiplicative approach deficit factor dryness probability factor. The former quantifies actual level plant stress, whereas latter verifies current condition is unusual specific...
Abstract. Building on almost 10 years of expertise and operational application the Combined Drought Indicator (CDI), which is implemented within European Commission's Observatory (EDO) for purposes early warning monitoring agricultural droughts in Europe, this paper proposes a revised version index. The CDI conceptualizes drought as cascade process, where precipitation shortage (WATCH stage) develops into soil water deficit (WARNING stage), turn leads to stress vegetation (ALERT stage). main...
Abstract European forests are an important source for timber production, human welfare, income, protection and biodiversity. During the last two decades, Europe has experienced a number of droughts which have been exceptional within 500 years, both in terms duration intensity. These seem to leave remarkable imprints on mortality dynamics forests. However, systematic observations tree decline, with emphasis single species, scarce so far that our understanding drought occurrence is still...
Thermal infrared (TIR) remote sensing of the land-surface temperature (LST) provides an invaluable diagnostic surface fluxes and vegetation state, from plant sub-field scales up to regional global coverage. However, without proper consideration nuances remotely sensed LST signal, TIR imaging can give poor results for estimating sensible latent heating. For example, sensor view angle, atmospheric impacts, differential coupling soil canopy sub-pixel elements with overlying atmosphere affect...
This paper introduces the Combined Drought Indicator dataset, a collection of raster maps generated by Copernicus European Observatory for monitoring agricultural drought in Europe. Computationally, CDI involves three indicators: Standardized Precipitation Index, Soil Moisture Anomaly and Fraction Photosyntetically Active Radiation anomaly. These are complemented use crop snow masks. The dataset has spatial resolution 1/24 decimal degrees (∼5 km), temporal 10 days is available from 2012...
Abstract. Actual evapotranspiration from typical Mediterranean crops has been assessed in a Sicilian study area by using surface energy balance (SEB) and soil-water models. Both modelling approaches use remotely sensed data to estimate fluxes spatially distributed way. The first approach exploits visible (VIS), near-infrared (NIR) thermal (TIR) observations solve the equation whereas model uses only VIS-NIR detect spatial variability of crop parameters. Considering that is characterized...
Near real-time monitoring of hydrological drought requires the implementation an index capable capturing dynamic nature phenomenon. Starting from a dataset modelled daily streamflow data, low-flow was developed based on total water deficit discharge values below certain threshold. In order to account for range regimes, 95th percentile threshold adopted, which computed by means 31-day moving window. The observed historical deficits were statistically fitted exponential distribution and...
Abstract. Extreme-temperature anomalies such as heat and cold waves may have strong impacts on human activities health. The in western Europe 2003 Russia 2010, or the wave southeastern 2012, generated a considerable amount of economic loss resulted death several thousands people. Providing an operational system to monitor extreme-temperature is thus prime importance help decision makers emergency services be responsive unfolding extreme event. In this study, development validation monitoring...
Abstract It is a good practice to follow common guidelines in the computation of Standardized Precipitation Index (SPI) data sets as part operational drought monitoring systems. In European Drought Observatory ( https://edo.jrc.ec.europa.eu/ ), reference statistics are computed following World Meteorological Organization Guidelines on Calculation Climate Normals, where definition period for applications introduced most recent 30‐year finishing year ending with 0. this study, temporal...
We are proposing a new method for estimating soil surface water content from thermal inertia distributions retrieved visible–near infrared (VIS‐NIR) and (TIR) images. A drying experiment was conducted on three fine‐textured soils while acquiring multispectral VIS‐NIR TIR Simultaneous measurements of were by the thermogravimetric heat pulse technique, respectively. Direct used to test approach proposed Murray Verhoef that requires only knowledge porosity can be easily inverted derive inertia....
Abstract. Agricultural drought events can affect large regions across the world, implying need for a suitable global tool an accurate monitoring of this phenomenon. Soil moisture anomalies are considered good metric to capture occurrence agricultural events, and they have become important component several operational systems. In framework JRC Global Drought Observatory (GDO, http://edo.jrc.ec.europa.eu/gdo/), suitability three datasets as possible representations root zone soil has been...
In the context of evaluating occurrence drought events over Europe, soil moisture maps provide an invaluable resource to quantify effects rainfall deficits on vegetated lands. Spatially distributed models represent one main options, alongside satellite remote sensing, successfully monitor this quantity large areas in a cost effective way. This work has double aim of: (i) intercomparing three outputs obtained by different land-surface (LISFOOD, CLM and TESSEL) through long (at least 6 years...
Abstract. Climate change is anticipated to alter the demand and supply of water at earth's surface. Since many societal impacts from a lack happen under drought conditions, it important understand how droughts may develop with climate change. This study shows hydrological will across Europe increasing global warming levels (GWLs 1.5, 2, 3 K above pre-industrial temperature). We employed low-flow analysis based on river discharge simulations LISFLOOD (De Roo et al., 2000) spatially...