A5013551064- Soil Moisture and Remote Sensing
- Climate change and permafrost
- Climate variability and models
- Geophysics and Gravity Measurements
- Precipitation Measurement and Analysis
- Cryospheric studies and observations
- Nuclear Physics and Applications
- Computational Physics and Python Applications
- Meteorological Phenomena and Simulations
- Earthquake Detection and Analysis
- Soil and Unsaturated Flow
- 3D Surveying and Cultural Heritage
- Particle Detector Development and Performance
- Ionosphere and magnetosphere dynamics
- Planetary Science and Exploration
- Hydrology and Watershed Management Studies
- Spacecraft and Cryogenic Technologies
- Lightning and Electromagnetic Phenomena
- Hydrology and Drought Analysis
- Atomic and Subatomic Physics Research
University of Bristol
2020-2024
Abstract. Climate change increases the occurrence and severity of droughts due to increasing temperatures, altered circulation patterns, reduced snow occurrence. While Europe has suffered from drought events in last decade unlike ever seen since beginning weather recordings, harmonized long-term datasets across continent are needed monitor support predictions. Here we present soil moisture data 66 cosmic-ray neutron sensors (CRNSs) (COSMOS-Europe for short) covering recent events. The CRNS...
Abstract. Reanalysis soil moisture products are valuable for diverse applications, but their quality assessment is limited due to scale discrepancies when compared traditional in situ point-scale measurements. The emergence of cosmic ray neutron sensors (CRNSs) with field-scale estimates (∼ 250 m radius, up 0.7 deep) more suitable the product evaluation owing larger footprint. In this study, we perform a comprehensive eight widely used reanalysis (ERA5-Land, CFSv2, MERRA2, JRA55, GLDAS-Noah,...
The increasing adoption of Cosmic-Ray Neutron Sensors (CRNS), across research infrastructures and beyond, necessitates standardised flexible processing tools. Such tools should be accessible to new users with little experience in CRNS, as well support researchers investigating novel methodologies developing theoretical frameworks. Here we present neptoon; an open-source python tool, using a modular, expandable framework, ensure long term viability software sustainability. Building from...
Abstract. Understanding soil moisture dynamics at the sub-kilometre scale is increasingly important, especially with continuous development of hyper-resolution land surface and hydrological models. Cosmic-ray neutron sensors (CRNSs) are able to provide estimates this elusive scale, networks these have been expanding across world over previous decade. However, each network currently implements its own protocol when processing raw data into estimates. As a consequence, lack harmonised global...
Abstract Ground level enhancements (GLEs) are space weather events that pose a potential hazard to the aviation environment through single event effects in avionics and increased dose passengers crew. The existing ground neutron monitoring network provides continuous well‐characterized measurements of radiation environment. However, there only few dozen active stations worldwide, has not been UK‐based station for several decades. Much smaller detectors increasingly deployed throughout world...
Abstract. Understanding soil moisture dynamics at the sub-kilometre scale is increasingly important especially with continuous development of hyper-resolution land-surface and hydrological models. Cosmic Ray Neutron Sensors (CRNS) are able to provide estimates this elusive networks these sensors have been expanding across world over previous decade. However, each network currently implements its own protocol when processing raw data into estimates. As a consequence, lack harmonized global...
COSMIC-SWAMP is an Internet of Things solution designed to support the integration cosmic ray soil moisture sensors into data-driven irrigation management systems. By automatically accounting for sensitive footprint different in-situ probes, platform can aggregate properties measured by diverse networks whilst dynamically responding changes in sensor locations. Results from first trials using with a small array boron-nitride-based scintillating demonstrate ability extract almost real-time...
Abstract. Human-caused climate change increases the occurrence and severity of droughts due to increasing temperatures, altered circulation patterns reduced snow occurrence. For example, Europe has suffered from drought events in last decade like never since beginning weather recording. Here we present soil moisture data 65 Cosmic-ray neutron sensors (CRNS) (COSMOS-Europe for short) covering recent events. The CRNS sites are distributed across cover all major land use types zones Europe. raw...
<p>Soil moisture influences many physical processes in hydrology, meteorology, and agriculture, such as evapotranspiration, infiltration, runoff generation, drought development, crop growth, among others. Robust accurate soil estimates are needed for monitoring, climatology research hydrological model initialization. Compared to in-situ measurements satellite products, reanalysis products becoming good alternatives analysis at the global scale due their long temporal coverage....
Knowledge of fluxes water vapor and carbon at the land surface are paramount to our understanding Earth system. Large-scale network initiatives such as Fluxnet allow us better understand environmental controls on evapotranspiration gross primary productivity. An important aspect is that its large number sites for localized knowledge be upscaled a region or even globally. This can either done by employing physics-based global models empirically, via data-driven approaches. Particularly, we...
Abstract. Accurate soil moisture information is vital for flood and drought predictions, crop growth agricultural water management. Reanalysis products with multi-decadal temporal coverage are gradually becoming a good alternative providing global data in various applications compared to in-situ measurements satellite products. Much effort has been devoted evaluating the performance of products, yet scale discrepancy between point grid cell limits assessment quality. As land surface...
<p><span>This study presents the results of soil moisture investigation carried by Joint FAO/IAEA Division using Cosmic-Ray Neutron Sensor (CRNS). The measurements have been collected at several studied sites in Austria. Petzenkirchen which is within Austrian Institute for Land and Water Management Research employing stationary CRNS has established Dec. 2013 it provides major dataset this study. It represents small watershed hilly area northern footslopes Alps....
<p>Soil moisture is an important component of the water balance despite accounting for a small volume relative to other hydrological cycle components. With continuing evolution land surface and global models, characterizing soil dynamics at sub-kilometer scales becoming ever important. To help with that, cosmic-ray neutron sensing established technology that provides estimates root-zone 200-300m radius. In simple terms, sensors can estimate root zone through indirect...
<p>Estimates of evapotranspiration and carbon fluxes across the globe are increasingly important to understand impacts climate change on global eco-hydrology. Soil moisture has a significant influence in these processes, if we want accurately predict energy good quality soil data is ultimately needed. Flux towers can measure key atmospheric often include traditional point-scale sensors within sensor footprint. However, spatial mismatch between flux tower footprint in-situ point...
<p>Despite its importance in many hydrological and environmental applications, direct estimates of soil moisture at the field-scale is still challenging. The spatial gap between point scale sensors satellite derived products becoming increasingly important to consider push for hyper-resolution (sub)kilometre-hydrometeorological models. Cosmic-Ray Neutron Sensors (CRNS) can help bridge this gap. CRNS provide (sub-kilometre) root-zone integrated typically hourly intervals. They...