Sarah E. Null
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View article: Flood injustice in 500-year floodplains
Flood injustice in 500-year floodplains Open
Urban flooding presents a global challenge, disproportionately affecting socially vulnerable communities. In the U.S., catastrophic floods are compounded by climate change, aging infrastructure, rapid land development, and population growt…
View article: Predicting Road‐Crossing Passability for River Connectivity Analysis
Predicting Road‐Crossing Passability for River Connectivity Analysis Open
Road‐crossing structures limit organism movement, but their passabilities are rarely measured because they are numerous and time‐consuming to survey. Instead, road‐crossing passability could be treated in one of four ways: assuming equal p…
View article: Factors influencing fish migration in one of the world's largest inland fisheries
Factors influencing fish migration in one of the world's largest inland fisheries Open
Fish from Cambodia's Tonle Sap Lake are economically, culturally, and nutritionally significant for people in the Lower Mekong Basin, providing income, livelihoods, and protein. Fish in this system generally migrate toward upstream Mekong …
View article: Can Agricultural Managed Aquifer Recharge (Ag‐MAR) Recover Return Flows Under Prior Appropriation in a Warming Climate?
Can Agricultural Managed Aquifer Recharge (Ag‐MAR) Recover Return Flows Under Prior Appropriation in a Warming Climate? Open
Groundwater return flow to streams is important for maintaining aquatic habitat and providing water to downstream users, particularly in irrigated watersheds experiencing water scarcity. However, in many agricultural regions, increased irr…
View article: A web-based platform to assess water supply resilience under climate extremes in irrigated agriculture in the western US: A case study approach for the San Joaquin Valley in California, the Cache Valley in Utah and the Mesilla Valley in New Mexico.
A web-based platform to assess water supply resilience under climate extremes in irrigated agriculture in the western US: A case study approach for the San Joaquin Valley in California, the Cache Valley in Utah and the Mesilla Valley in New Mexico. Open
Irrigated agriculture in semi-arid regions such as the western United States will likely face increased volatility in access to water under climate extremes. Competing water uses including community, tribal, urban and environmental, along …
View article: The irrigation efficiency trap: rational farm-scale decisions can lead to poor hydrologic outcomes at the basin scale
The irrigation efficiency trap: rational farm-scale decisions can lead to poor hydrologic outcomes at the basin scale Open
Agricultural irrigation practices have changed through time as technology has enabled more efficient conveyance and application. In some agricultural regions, irrigation can contribute to incidental aquifer recharge important for groundwat…
View article: Assessing downstream aquatic habitat availability relative to headwater reservoir management in the Henrys Fork Snake River
Assessing downstream aquatic habitat availability relative to headwater reservoir management in the Henrys Fork Snake River Open
Reservoirs are sometimes managed to meet agricultural and other water demands, while also maintaining streamflow for aquatic species and ecosystems. In the Henrys Fork Snake River, Idaho (USA), irrigation‐season management of a headwater r…
View article: Predicting fish species richness and abundance in the Lower Mekong Basin
Predicting fish species richness and abundance in the Lower Mekong Basin Open
Predictive models are widely used to investigate relationships between the distribution of fish diversity, abundance, and the environmental conditions in which they inhabit, and can guide management actions and conservation policies. Gener…
View article: Fish biodiversity declines with dam development in the Lower Mekong Basin
Fish biodiversity declines with dam development in the Lower Mekong Basin Open
Hydropower dams are a source of renewable energy, but dam development and hydropower generation negatively affect freshwater ecosystems, biodiversity, and food security. We assess the effects of hydropower dam development on spatial–tempor…
View article: Prolonged and Severe Drought in the Most Dammed Tributaries of the Lower Mekong Basin
Prolonged and Severe Drought in the Most Dammed Tributaries of the Lower Mekong Basin Open
Drought is a natural hazard that stresses ecosystems, agricultural production, food security, and local economies. Given ongoing hydropower dam development in the Sesan and Srepok Basins, the two most dammed tributaries in the Lower Mekong…
View article: Hydrological Intensification Will Increase the Complexity of Water Resource Management
Hydrological Intensification Will Increase the Complexity of Water Resource Management Open
Global warming intensifies the hydrological cycle by altering the rate of water fluxes to and from the terrestrial surface, resulting in an increase in extreme precipitation events and longer dry spells. Prior hydrological intensification …
View article: Integrating science and art to improve water resources education for the general public
Integrating science and art to improve water resources education for the general public Open
Earth and Space Science Open Archive This is a preprint and has not been peer reviewed. ESSOAr is a venue for early communication or feedback before peer review. Data may be preliminary.Learn more about preprints preprintOpen AccessYou are…
View article: Optimizing Barrier Removal to Restore Connectivity in Utah’s Weber Basin
Optimizing Barrier Removal to Restore Connectivity in Utah’s Weber Basin Open
River barriers, such as dams, culverts and diversions are important for water conveyance, but disrupt river ecosystems and hydrologic processes. River barrier removal is increasingly used to restore and improve river habitat and connectivi…
View article: Spatial and Long-Term Temporal Changes in Water Quality Dynamics of the Tonle Sap Ecosystem
Spatial and Long-Term Temporal Changes in Water Quality Dynamics of the Tonle Sap Ecosystem Open
Tonle Sap lake-river floodplain ecosystem (TSE) is one of the world’s most productive freshwater systems. Changes in hydrology, climate, population density, and land use influence water quality in this system. We investigated long term wat…
View article: Changing Land Use and Population Density Are Degrading Water Quality in the Lower Mekong Basin
Changing Land Use and Population Density Are Degrading Water Quality in the Lower Mekong Basin Open
Establishing reference conditions in rivers is important to understand environmental change and protect ecosystem integrity. Ranked third globally for fish biodiversity, the Mekong River has the world’s largest inland fishery providing liv…
View article: Water Quality Degradation in the Lower Mekong Basin
Water Quality Degradation in the Lower Mekong Basin Open
The Mekong River is one of the world’s largest rivers, unparalleled in terms of its biodiversity and ecosystem services. As in other regions, sufficient water quality is required to support diverse organisms, habitats, and ecosystems, but …
View article: Managing Lake Urmia, Iran for diverse restoration objectives: Moving beyond a uniform target lake level
Managing Lake Urmia, Iran for diverse restoration objectives: Moving beyond a uniform target lake level Open
Study Region: Lake Urmia, Iran. Study focus: There is widespread interest in restoring drying saline lakes. At Iran’s hypersaline Lake Urmia, managers have sought a uniform target lake level of 1274.1 m above sea level to lower salinity be…
View article: 40-Years of Lake Urmia Restoration Research: Synthesis and Next Steps
40-Years of Lake Urmia Restoration Research: Synthesis and Next Steps Open
Public concern over environmental issues such as ecosystem degradation is high. However, restoring coupled human-natural systems requires integration across many science, technology, engineering, management, and governance topics that are …
View article: A Meta-Analysis of Environmental Tradeoffs of Hydropower Dams in the Sekong, Sesan, and Srepok (3S) Rivers of the Lower Mekong Basin
A Meta-Analysis of Environmental Tradeoffs of Hydropower Dams in the Sekong, Sesan, and Srepok (3S) Rivers of the Lower Mekong Basin Open
In Mekong riparian countries, hydropower development provides energy, but also threatens biodiversity, ecosystems, food security, and an unparalleled freshwater fishery. The Sekong, Sesan, and Srepok Rivers (3S Basin) are major tributaries…
View article: Rapidly Accelerating Deforestation in Cambodia’s Mekong River Basin: A Comparative Analysis of Spatial Patterns and Drivers
Rapidly Accelerating Deforestation in Cambodia’s Mekong River Basin: A Comparative Analysis of Spatial Patterns and Drivers Open
The Mekong River is a globally important river system, known for its unique flood pulse hydrology, ecological productivity, and biodiversity. Flooded forests provide critical terrestrial nutrient inputs and habitat to support aquatic speci…