A5048640189- Cryospheric studies and observations
- Climate change and permafrost
- Hydrology and Watershed Management Studies
- Climate variability and models
- Hydrology and Drought Analysis
- Aquatic Ecosystems and Phytoplankton Dynamics
- Flood Risk Assessment and Management
- Marine and coastal ecosystems
- Groundwater flow and contamination studies
- Water resources management and optimization
- Advanced Frequency and Time Standards
- GNSS positioning and interference
- Winter Sports Injuries and Performance
- Arctic and Antarctic ice dynamics
- Groundwater and Isotope Geochemistry
- Reservoir Engineering and Simulation Methods
- Remote Sensing and Land Use
- Scientific Measurement and Uncertainty Evaluation
- Enhanced Oil Recovery Techniques
- Smart Materials for Construction
- Freshwater macroinvertebrate diversity and ecology
- High Altitude and Hypoxia
- Soil and Water Nutrient Dynamics
- Karst Systems and Hydrogeology
- Hydraulic Fracturing and Reservoir Analysis
Water Research Institute
2016-2025
National Research Council
2016-2025
Institute of Structure of Matter
2021
Institute of Ecosystem Study
2014
Istituto Nazionale di Ricerca Metrologica
2007-2009
Abstract. Studies on recent climate trends from the Himalayan range are limited, and even completely absent at high elevation (> 5000 m a.s.l.). This study specifically explores southern slopes of Mt. Everest, analyzing time series temperature precipitation reconstructed seven stations located between 2660 5600 a.s.l. during 1994–2013, complemented with data all existing ground weather both sides mountain (Koshi Basin) over same period. Overall we find that main most significant increase...
Snow stores a significant amount of water in mountain regions. The decrease storage the snowpack can have relevant impacts on supply for and lowland areas that rely snow melting. In this work, we modelled Water Equivalent (SWE) using daily depth (HS) data obtained from 19 historical HS measurement stations located southern European Alps (Italy). Then, analysed long-term (1930–2020) variability monthly Standardised SWE Index (SSWEI) its links with climate change large-scale atmospheric...
Abstract Snow represents a fundamental water resource for mountain and lowland areas. Changes in the frequency magnitude of snow droughts can significantly impact societies ecosystems that rely on snowmelt to satisfy their demands. Here we documented quantified drought affected Italian Alps during early 2020s. We used 15 long-term snow-depth series (period 1930–2023, elevation range: 864–2200 m a.s.l.) simulate equivalent (SWE), conjunction with climatic reanalysis data river discharge...
Abstract This study explores the link between area increase of Imja Tsho (Lake) and changes Glacier (area ~25km 2 ) under influence climate change using multitemporal satellite imagery local data. Between 1962 2013, Lake expanded from 0.03±0.01 to 1.35±0.05 km at a rate 0.026±0.001 -1 . The mean glacier-wide flow velocity was 37±30ma during 1992–93 23±15ma 2013–14, indicating decreasing velocity. A elevation –1.29±0.71ma observed over lower part glacier in period 2001–14, with –1.06±0.63ma...
Abstract Understanding the response of Himalayan glaciers to global warming is vital because their role as a water source for Asian subcontinent. However, great uncertainties still exist on climate drivers past and present glacier changes across scales. Here, we analyse continuous hourly station data from glacierized elevation (Pyramid station, Mount Everest) since 1994 together with other ground observations reanalysis. We show that decrease in maximum air temperature precipitation occurred...
Abstract Groundwater resources are of utmost importance in sustaining water related ecosystems, including humans. The long-lasting impacts from anthropogenic activities require early actions, owing to the natural time lag groundwater formation and renewal. European Union (EU) policy, within implementation Water Framework Directive (WFD), requires Member States identify reverse any significant sustained upward trend concentration pollutants, defining specific protection measures be included...
ABSTRACT The South Asian summer monsoon brings abundant precipitation and associated latent heat release to the south of central Himalaya, alters hydrothermal conditions this region. This study explored impact on elevation‐dependence meteorological variables along slope Mt. Everest in which is crucial modelling glacio‐hydrological processes elevated data were collected at five stations deployed 2660–5600 m above sea level (asl) during 2007–2011. Major findings are following: (1) amount...
Abstract. Various downscaling techniques have been developed to bridge the scale gap between global climate models (GCMs) and finer scales required assess hydrological impacts of change. Such may be grouped into two approaches: deterministic dynamical (DD) statistical (SD). Although SD has traditionally seen as an alternative DD, recent works on aimed combine benefits these approaches. The overall objective this study is whether a DD processing performed before permits obtain more suitable...
To compute precise point positioning (PPP) and time transfer using GPS code phase measurements, a new software named Atomium was developed by the Royal Observatory of Belgium. also adapted to perform phase‐only analysis with goal obtain continuous clock solution which is independent codes. In this paper, strategy used in described solutions obtained through approach are compared results from PPP mode. It shown that improves stability link for averaging times smaller than 7 days very...
Abstract. Climatic time series for high-elevation Himalayan regions are decidedly scarce. Although glacier shrinkage is now sufficiently well described, the changes in precipitation and temperature at these elevations less clear. This contribution shows that surface area variations of unconnected glacial ponds, i.e. ponds not directly connected to ice, but may have a located their hydrological basin, can be considered as suitable proxies detecting past main components water balance. On south...
Among different uses of freshwater, irrigation is the most impacting groundwater resource, leading to water table depletion and possible seawater intrusion. The unbalance between availability resources demand currently exacerbated could become worse in near future accordance with climate change observations scenarios provided by Intergovernmental Panel on Climate Change (IPCC). In this context, Increasing Maximum Capacity surface reservoir (IMC) Managed Aquifer Recharge (MAR) are adaptation...
Lake Bracciano has been historically used as a strategic water reservoir for the city of Rome (Italy) since ancient times. However, following severe crisis 2017, abstraction completely stopped. The relative impact various drivers change (climatological and management) on fluctuations in lake level is not yet clear. To quantify this impact, we applied Random Forest (RF) machine learning approach, taking advantage century observations. Since late 1990s monthly variation levels doubled,...
Abstract. Climate change is deeply impacting mountain areas around the globe, especially in Himalaya. However, lack of long-term meteorological observations at high elevations poses significant challenges to understand and predict impacts various scales. This also represents a serious limit for model-based projections future behavior crucial elements cryosphere such as glaciers. Here, we present Pyramid Meteorological Network, located Himalaya (Nepal), on southern slopes Mt. Everest. The...
During the last decades, most glaciers have been retreating and losing mass in all high-mountain regions, where permafrost has also undergone warming, degradation, ice loss. In this context, rock glaciers, a visual indication of presence mountain permafrost, gained attention because they host shallow groundwater resources. Hence, could represent contributor for future water supply, especially arid semi-arid areas and/or during dry periods. However, growing body literature, mostly composed...
Due to the rapid shrinkage of mountain glaciers, subsurface ice, including ground ice stored in periglacial landforms such as rock glaciers (RGs), is expected become a significant shallow groundwater reservoir under future climate warming. However, there are still many open questions about volume inside RGs, its melting rates, hydrological significance and quality water flowing out from RGs. In this work, we aim at: i) characterizing geochemistry RG springs, ii) evaluating variability...
Global warming may trigger more frequent snow droughts (SD). SD can result from low total precipitation (dry-SD), high temperature leading to less solid (warm-SD) or the combination of both (dry-warm compound SD). Each those type pose different ecological threats. Nevertheless, regions dominated by types, transition patterns, and future risks under climate change remain unclear. Here, we investigated dominant types clarify patterns among three during historical period. The results suggest a...
Abstract Global warming may trigger more frequent snow droughts (SD). SD can result from low total precipitation (dry‐SD), high temperatures leading to less solid (warm‐SD), or a combination of both (dry‐warm compound SD). Those three types threaten ecosystems differently. Nevertheless, the regions dominated by types, transition patterns, and future risks under climate change remain unclear. We investigated dominance their patterns across historical periods. By 2100, compared 1981, results...
The Royal Observatory of Belgium (ROB) developed the software Atomium to perform GPS-based time and frequency transfer. Originally dedicated Precise Point Positioning (PPP) based on a combined analysis dual-frequency carrier phase code measurements, has recently been adapted allow phase-only analysis, providing continuous solution independent GPS codes. In this paper, strategy used in is described clock solutions obtained through approach are compared results from PPP mode. It shown that...
Rock glaciers (RGs) provide significant water resources in mountain areas under climate change. Recent research has highlighted high concentrations of solutes including trace elements RG-fed waters, with negative implications on quality. Yet, sparse studies from a few locations hinder conclusions about the main drivers solute export RGs. Here, an unprecedented effort, we collected published and unpublished data rock glacier hydrochemistry around globe. We considered 201 RG springs ranges...
In recent years, many national timing laboratories have installed geodetic Global Positioning System receivers together with their traditional GPS/GLONASS Common View and Two Way Satellite Time Frequency Transfer equipment. Many of these operate continuously within the International GNSS Service (IGS), data are regularly processed by IGS Analysis Centers. From its global network over 350 stations Centers, generates precise combined GPS ephemeredes station satellite clock time series referred...