A5036560119- Hydrology and Watershed Management Studies
- Soil erosion and sediment transport
- Flood Risk Assessment and Management
- Hydrology and Sediment Transport Processes
- Aeolian processes and effects
- Hydrological Forecasting Using AI
- Remote Sensing and LiDAR Applications
- Geophysics and Gravity Measurements
- Groundwater and Watershed Analysis
- Remote Sensing in Agriculture
- Transboundary Water Resource Management
- Cryospheric studies and observations
- Rangeland Management and Livestock Ecology
- Landslides and related hazards
- Land Use and Ecosystem Services
- Climate change and permafrost
- Plant Water Relations and Carbon Dynamics
- Climate variability and models
- Urban Heat Island Mitigation
- Marine and environmental studies
- Fisheries and Aquaculture Studies
- Environmental Changes in China
- Groundwater flow and contamination studies
- Coastal wetland ecosystem dynamics
- Water-Energy-Food Nexus Studies
University of the Sunshine Coast
2016-2023
Global Health Research Center of Central Asia
2022
University of Central Asia
2022
Commonwealth Scientific and Industrial Research Organisation
2016
The University of Queensland
2013-2015
CSIRO Land and Water
2013
This paper is the outcome of a community initiative to identify major unsolved scientific problems in hydrology motivated by need for stronger harmonisation research efforts. The procedure involved public consultation through online media, followed two workshops which large number potential science questions were collated, prioritised, and synthesised. In spite diversity participants (230 scientists total), process revealed much about priorities state our science: preference continuity...
Landslides represent a severe hazard in many areas of the world. Accurate landslide maps are needed to document occurrence and extent landslides investigate their distribution, types, pattern slope failures. Landslide also crucial for determining susceptibility risk. Satellite data have been widely used such investigations—next from airborne or unmanned aerial vehicle (UAV)-borne campaigns Digital Elevation Models (DEMs). We developed methodology that incorporates object-based image analysis...
The objective of this paper was to evaluate the accuracy two advanced blending algorithms, Spatial and Temporal Adaptive Reflectance Fusion Model (STARFM) Enhanced (ESTARFM) downscale Moderate Resolution Imaging Spectroradiometer (MODIS) indices spatial resolution Landsat. We tested approaches: (i) “Index-then-Blend” (IB); (ii) “Blend-then-Index” (BI) when simulating nine indices, which are widely used for vegetation studies, environmental moisture assessment standing water identification....
Gully erosion is a dominant source of sediment and particulates to the Great Barrier Reef (GBR) World Heritage area. We selected Bowen catchment, tributary Burdekin Basin, as our area study; region associated with high density gully networks. aimed use semi-automated object-based networks detection process using combination multi-source multi-scale remote sensing ground-based data. An advanced approach was employed by integrating geographic image analysis (GEOBIA) current machine learning...
Abstract The ability to map floods from satellites has been known for over 40 years. Early images of were rather difficult obtain, and flood mapping was thus opportunistic limited only a few case studies. However, the last decade, with proliferation open-access EO data, there much progress in development Earth Observation products services tailored various end-user needs, as well its integration modeling prediction efforts. This article provides an overview use satellite remote sensing...
Structure from Motion with Multi-View Stereo photogrammetry (SfM-MVS) is increasingly used in geoscience investigations, but has not been thoroughly tested gullied savanna systems. The aim of this study was to test the accuracy topographic models derived aerial (via Unmanned Aerial Vehicle, ‘UAV’) and ground-based handheld digital camera, ‘ground’) SfM-MVS modelling hillslope gully systems a dry-tropical savanna, assess strengths limitations approach at scale an individual scale. UAV surveys...
The input selection process for data-driven rainfall-runoff models is critical because vectors determine the structure of model and, hence, can influence results. Here, hydro-geomorphic and biophysical time series inputs, including Normalized Difference Vegetation Index (NDVI) Connectivity (IC; a type hydrological connectivity index), in addition to climatic hydrologic inputs were assessed. Selected used develop Artificial Neural Networks (ANNs) Haughton River catchment Calliope catchment,...
Climate change affects rainfall variability and food security, in some cases leading to migration. Improved understanding about the interactions between climate security is needed before we can determine whether migration a truly adaptive response poorer countries. Without this understanding, it difficult design effective strategies that ensure resilient development. We present an analysis of climate, migration, its consequences from 218 households three locations North-western Cambodia,...
Gully erosion is a severe form of soil that results in wide range environmental problems such as, dams’ sedimentation, destruction transportation and energy transmission lines, decreasing losing farmland productivity, land degradation. The main objective this study to accurately map the areas prone gully erosion, by developing two machine learning (ML) models, namely artificial neural network (ANN) random forest (RF) models within 4-fold cross-validation (CV). Moreover, we used...
Abstract Gully erosion is a major land management challenge globally and particularly important issue in dry tropical savanna rangelands tributary to the Great Barrier Reef, Australia. This study investigated linkages between hillslope hydrological connectivity pathways gully geomorphic change Burdekin River Basin. High‐resolution (0.1 m) topographic cover data derived from low‐cost aerial (via unmanned aircraft system) structure‐from‐motion with multiview stereo photogrammetry (SfM) were...
Water security has become a pressing issue in Central Asia due to increasing climate variability, rising water demand, and geopolitical challenges surrounding transboundary river management. This paper examines the complexities of resource governance region, emphasizing interplay between national interests regional cooperation. Using Regional Security Complex Theory, we analyze how social, economic, environmental, political factors influence diplomacy among Asian states. Key include...
Existing wet tropical urban drainage systems often fail to accommodate runoff generated during extreme rainfall. Water-sensitive design (WSUD) have the potential retrofit existing system by enhancing infiltration and retention functions. However, studies supporting this as-sumption were based on temperate or arid climatic conditions, raising questions about its relevance in catchments. To answer these questions, study has implemented a comprehensive modelling of WSUD effectiveness...
Gullies contribute high sediment loads to receiving waters and significantly degrade landscapes. In drylands, low annual rainfall resultant poor ground cover, coupled with high-intensity storms dispersive soils, predispose these landscapes gully erosion. Land management, such as grazing, exacerbates gully-forming processes by degrading cover compacting thereby increasing concentrating overland flow. Current surface erosion models do not adequately represent export from gullied terrain due...
Rainfall is the main driver of hydrological processes in dryland environments and characterising rainfall variability runoff generation are critical for understanding ecosystem function catchments. Using remote sensing situ data sets, we assess spatial temporal rainfall, rainfall–runoff response, effects on coefficients antecedent soil moisture ground cover at different scales. This analysis was undertaken Upper Burdekin catchment, northeast Australia, which a major contributor sediment...
Structure from Motion with Multi-View Stereo photogrammetry (SfM) is increasingly utilised in geoscience investigations as a cost-effective method of acquiring high resolution (sub-meter) topographic data, but has not been thoroughly tested gullied savanna systems. The aim this study was to test the accuracy models derived aerial (via an Unmanned Aerial Vehicle, ‘UAV’) and ground-based handheld digital camera, ‘Ground’) SfM modelling hillslope gully...
Abstract Tidal wetlands continue to be threatened by changes in seascape hydrological regime and connectivity resulting from human activities (e.g. urbanisation, engineered barriers) climate change. Reliable parsimonious models that can used managers practitioners simulation tidal wetland hydroperiod dynamics (duration, depth, frequency of inundation) at high-resolution are limited presumably because these ecosystems have very low elevation across their flooding plain. Here, we developed a...
The Vakhsh River is tributary to the Amu Dayra, supporting numerous hydropower facilities as well irrigation and community water supplies. High sediment loads are major concerns for these uses, yet little known about spatial distribution of dominant sources or their connectivity fluvial systems. Here, we address this gap by combining findings from a series field expeditions, remotely sensed climate vegetation assessments, systematic sampling, hydrograph analysis, review local literature. Our...
The Central Asian (CA) rangelands is a part of the arid and semi-arid ecological zones spatial extent drylands in CA (Tajikistan, Kazakhstan, Uzbekistan, Kyrgyzstan, Turkmenistan) vast. Projections averaged across suite climate models, as measured between 1950-2012 by Standardised Precipitation-Evapotranspiration Index (SPEI) estimated progressively increasing drought risks (Turkmenistan, Tajikistan Uzbekistan) especially during late summer autumn periods, another index: Potential...