A5101620668- Hydrology and Watershed Management Studies
- Flood Risk Assessment and Management
- Fish Ecology and Management Studies
- Hydrology and Sediment Transport Processes
- Water-Energy-Food Nexus Studies
- Groundwater and Isotope Geochemistry
- Water resources management and optimization
- Marine and coastal ecosystems
- Atmospheric and Environmental Gas Dynamics
- Soil and Water Nutrient Dynamics
- Water Quality Monitoring and Analysis
- Water Quality and Resources Studies
- Hydrological Forecasting Using AI
- Water Quality and Pollution Assessment
- Pharmaceutical and Antibiotic Environmental Impacts
- Climate Change and Health Impacts
- Oceanographic and Atmospheric Processes
- Urban Stormwater Management Solutions
- Mine drainage and remediation techniques
- Hydrology and Drought Analysis
- Freshwater macroinvertebrate diversity and ecology
- Remote Sensing and LiDAR Applications
- Fish Biology and Ecology Studies
- Coal and Its By-products
- Water Treatment and Disinfection
Commonwealth Scientific and Industrial Research Organisation
2020-2025
Health Sciences and Nutrition
2023
CSIRO Land and Water
2020-2022
ACT Government
2021-2022
Southern California Coastal Water Research Project
2012-2018
ORCID
2017
University of Massachusetts Amherst
2007
Rising global temperatures are causing increases in the frequency and severity of extreme climatic events, such as floods, droughts, heat waves. We analyze changes summer temperatures, frequency, severity, duration waves, heat-related mortality India between 1960 2009 using data from Meteorological Department. Mean across have risen by more than 0.5°C over this period, with statistically significant Using a novel probabilistic model, we further show that increase mean period corresponds to...
To inform future monitoring and assessment of chemicals emerging concern (CECs) in coastal urban watersheds, the occurrence fate more than 60 pharmaceuticals personal care products (PPCPs), commercial/household chemicals, current-use pesticides, hormones were characterized 2 effluent-dominated rivers southern California (USA). Water samples collected during low-flow events at locations above below discharge points water reclamation plants (WRPs) analyzed using gas chromatography-mass...
Anthropogenic nutrients have been shown to provide significant sources of nitrogen (N) that linked increased primary production and harmful algal blooms worldwide. There is a general perception in upwelling regions, the flux anthropogenic nutrient inputs small relative flux, therefore relatively little effect on productivity coastal waters. To test hypothesis natural (e.g., upwelling) greatly exceed Southern California Bight (SCB), this study compared source contributions N from four major...
To examine the occurrence and fate of contaminants emerging concern (CECs) inform future monitoring CECs in coastal urban waterways, water, sediment, fish tissue samples were collected analyzed for a broad suite pharmaceuticals personal care products (PPCPs), commercial and/or household chemicals, current use pesticides, hormones an effluent-dominated river multiple embayments southern California (USA). In Santa Clara River, which receives treated wastewater from several facilities, aqueous...
Abstract Widespread hydrologic alteration creates a need for tools to assess ecological impacts streams that can be applied across large geographic scales. A regional framework biologically based flow management help catchment managers prioritise protection, evaluate of disturbance or interventions and provide starting point causal assessment in degraded streams. However, lack data limit the ability conditions region. Hydrologic models address this problem. Regionally calibrated were used...
Abstract Relationships between changes in streamflow and biological condition are important considerations for water resources management decisions. The Ecological Limits of Hydrologic Alteration (ELOHA) framework offers a way to protect stream health by managing flow conditions. We demonstrate application regionally derived ELOHA inform stakeholder defined challenges the San Diego River Watershed southern California, USA—a large semi‐urbanized watershed that is undergoing land use changes....
Abstract Hydrologic alteration is a predominant stressor for biological resources in streams. This stress further aggravated by competing human and ecological demands limited water resources. Understanding flow–ecology relationships establishing relevant implementable flow targets are essential to protect communities. Estimating degree of ecologically hydrologic depends on the availability long‐term data at sites with information. However, measured seldom available sufficient density support...
Mapping surface water extent is important for managing supply agriculture and the environment. Remote sensing technologies, such as Landsat, provide an affordable means of capturing with reasonable spatial temporal coverage suited to this purpose. Many methods are available mapping including modified Normalised Difference Water Index (mNDWI), Fisher’s index (FWI), Observations from Space (WOfS), Tasseled Cap Wetness (TCW). While these can discriminate water, they have their strengths...
Abstract Simple models continue to be important for continental‐scale floodwater depth mapping due the prohibitively expensive cost of calibrating and applying hydrodynamic models. This paper investigates accuracy three simple estimation from remote sensing derived water extent and/or Digital Elevation Models (DEMs) in semiarid regions. The are Height Above Nearest Drainage (HAND; Nobre et al., 2011, https://doi.org/10.1016/j.jhydrol.2011.03.051 ), Teng Vaze Dutta (TVD; 2013,...
Abstract Flow regimes of river ecosystems worldwide have undergone substantial changes because water resource development, altering the way in which organic matter is generated and cycled throughout entire catchments. Flow–ecology studies focused on structural variables measured at small spatial scales. This creates a challenging mismatch when applying adaptive flow management for ecosystem functioning catchment or regional scale. Here, we sought to inform by evaluating drivers metabolism...
The effect of upwelling events, storm water discharge, and local circulation on phytoplankton blooms in the central California Southern Bight (SCB) coastal zones was analyzed using 10+ years (1997–2007) remotely sensed surface chlorophyll concentration (CHL, derived from SeaWiFS ocean color), sea temperature, modeled freshwater discharge. Analysis variability factors associated with conducted offshore extension CHL > 5 mg m −3 ; this method excludes terrestrial interference that...
Time series were compiled of terrestrial nitrogen, phosphorus, carbon, iron, and silica fluxes to the Southern California Bight (SCB), a U.S. West Coast embayment (Sutula et al., 2021). Monitoring data model output used construct baseline inputs from direct point source (PS) discharges wastewater treatment (WWT) effluent (via ocean outfalls) PS, non-point natural sources coastal rivers. The covers 1971—2017 for large WWT plants discharging >50 million gallons per day (MGD) 1997–2017 small PS...
Abstract With growing concerns over water management in rivers worldwide, researchers are seeking innovative solutions to monitor and understand changing flood patterns. In a noteworthy advancement, stakeholders interested the patterns of Murray Darling Basin (MDB) Australia, covering an area 1 million km 2 , can now access consistent timeseries depth maps for entire basin. The dataset covers period from 1988 2022 at two-monthly timestep was developed using remotely sensed imagery estimation...
Improved knowledge of how habitat for water-dependent species is changing over space and time across entire river catchments important in developing indicators tracking changes quantifying the effectiveness environmentally-targeted water management actions. Such information often difficult to obtain large catchments, given that can change rapidly typically depends on complex interactions environmental variables. Models help filling these gaps, by using incomplete data generalise patterns at...
Water resources are under growing pressures globally, and better basin planning is crucial to alleviate current future water scarcity issues. Communicating the complex interconnections needs of natural human systems a significant research challenge. With advances in cyberinfrastructure allowing for new innovative approaches planning, this same technology can also facilitate stakeholder engagement. The potential benefits using digital platforms engagement immense; yet, there limited guidance...
Water resources are under growing pressure globally. Sustainable water management requires an understanding of how much is available, where it stored and used, future developments may impact availability. Understanding this investment in data, models, experts. These investments labour intensive, with considerable effort spent three main areas: collecting transforming data; building, calibrating, running maintaining models; developing required reports visualisations. We present Basin Futures,...
The application of ICESAT-2 altimetry data in river hydrology critically depends on the accuracy mean water surface elevation (WSE) at a virtual station (VS) where satellite observations intersect solely with water. It is acknowledged that ATL13 product has noise elevations adjacent land, resulting biased high WSEs VSs. Earlier studies have relied human intervention or masks to resolve this. Both approaches are unsatisfactory solutions for large basins issue becomes pronounced due many...
Abstract Accurate information about the extent, frequency and duration of forest inundation is required to inform ecological, biophysical hydrological models enables floodplain managers quantify efficacy flood mitigation/modification activities. Open water classifiers derived from optical remote sensing typically underestimate or fail detect inundation. This paper presents a new method for detecting dynamics using freely available Landsat Sentinel 2 data, referred as short‐wave infrared...
The common carp (Cyprinus carpio) is an invasive species in the rivers and waterways of southeastern Australia, it has been implicated serious decline many native fish species. Over past 50 years, various control options have explored, to date, these ineffective or cost-prohibitive. Most recently, cyprinid herpesvirus 3 (CyHV-3) proposed as a biocontrol agent because its high specificity mortality rate. However, virus known be only effective permissive water temperature range approximately...
The Southern California Bight (SCB) is an upwelling-dominated, open embayment on the U.S. West Coast and receives discharges of anthropogenically-enhanced freshwater, nutrients, carbon, other materials. These inputs include direct point sources discharged from wastewater treatment (WWT) plants via ocean outfalls point, non-point, natural coastal rivers. We assembled a daily time series over 1971–2017 large WWT ≥ 50 million gallon per day (MGD) 1997–2017 small Constituents nitrogen,...
Abstract The transformation of solar energy into organic matter by autotrophs (gross primary production [GPP]) and the use that heterotrophs (ecosystem respiration [ER]) describe total available to support food webs. Rates GPP ER vary with temperature, light, hydrology, nutrients, supply quality yet despite their obvious importance, spatiotemporal variation metabolic patterns among floodplain habitats, relationship inundation dynamics remain unclear. We set out review peer‐reviewed...