Bridget R Scanlon

Bridget R Scanlon
University of Texas at Austin | UT · Jackson School of Geosciences

PhD

About

329
Publications
118,659
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
21,570
Citations

Publications

Publications (329)
Article
Approximately 10% of community water systems in the United States experience a health-based violation of drinking water quality; however, recently allocated funds for improving United States water infrastructure ($50 billion) provide an opportunity to address these issues. The objective of this study was to examine environmental, operational, and s...
Article
Full-text available
Gravity Recovery and Climate Experiment and its Follow On (GRACE (-FO)) missions have resulted in a paradigm shift in understanding the temporal changes in the Earth’s gravity field and its drivers. To provide continuous observations to the user community, missing monthly solutions within and between GRACE (-FO) missions (33 solutions) need to be i...
Presentation
Full-text available
Since 2002, the Gravity Recovery and Climate Experiment (GRACE) mission and its successor (Follow-On) (FO) monitored the temporal variations of Earth's gravity field at monthly timescales and provided data to assess natural and anthropogenic drivers of water storage variability. Yet, missing solutions within and between the missions disrupt the con...
Article
The demand for meteorological gridded datasets has increased within the last few years to inform studies such those in climate, weather, and agriculture. These studies require those data to be readily usable in standard formats with continuous spatial and temporal coverage. Since 2016, Brazil has a daily gridded meteorological data set with spatial...
Chapter
Full-text available
Freshwater scarcity in the Middle East and North Africa (MENA) is increasingly exacerbated by rapid population growth demands and climate change and currently impacts ~0.6 billion people in the region. In this chapter, we revisited the trends in terrestrial water storage (TWS) over the last 18 years between 2002 and 2020 using observations of the G...
Article
Full-text available
Water resources management is a critical issue in Africa where many regions are subjected to sequential droughts and floods. The objective of our work was to assess spatiotemporal variability in water storage and related controls (climate, human intervention) in major African aquifers and consider approaches toward more sustainable development. Dif...
Article
Full-text available
Continental- to global-scale hydrologic and land surface models increasingly include representations of the groundwater system. Such large-scale models are essential for examining, communicating, and understanding the dynamic interactions between the Earth system above and below the land surface as well as the opportunities and limits of groundwate...
Article
Quantifying impacts of unconventional oil and gas production on water resources and aquatic habitats is critical for developing management approaches for mitigation. The study objective was to evaluate impacts of oil and gas production on groundwater and surface water and assess approaches to reduce these impacts using the Permian Basin as a case s...
Article
Full-text available
Potential evapotranspiration (PET) is a key input to hydrologic models simulating the atmospheric water demand. Thus, uncertainties in PET would result in considerable uncertainty in model outputs. Among numerous PET algorithms, the Penman‐Monteith equation (PM equation) is most widely used because of its clear physical basis and acceptable estimat...
Article
The Gravity Recovery and Climate Experiment (GRACE) satellites provide a powerful tool for monitoring sediment mass change. However, signal leakage from nearby groundwater storage depletion in the North China Plain limits the potential capacity of GRACE to estimate sediment input from the Yellow River flows into the Bohai Sea. In the present work,...
Article
Full-text available
Understanding climate and human impacts on water storage is critical for sustainable water-resources management. Here we assessed climate and human drivers of total water storage (TWS) variability from Gravity Recovery and Climate Experiment (GRACE) satellites compared with drought severity and irrigation water use in 14 major aquifers in the Unite...
Article
Terrestrial water storage anomaly (TWSA) is a critical component of the global water cycle where improved spatiotemporal dynamics would enhance exploration of weather and climate-linked processes. Thus, correctly simulating TWSA is essential not only for water-resource management but also for assessing feedbacks to climate through land-atmosphere i...
Article
Full-text available
Terrestrial water storage (TWS) in high mountain areas contributes large runoff volumes to nearby lowlands during the low-flow season when streamflow is critical to downstream water supplies. The potential for TWS from GRACE (Gravity Recovery and Climate Experiment) satellites to provide long-lead streamflow forecasting in adjacent lowlands during...
Preprint
Full-text available
Continental- to global-scale hydrologic and land surface models increasingly include representations of the groundwater system. Such large-scale models are essential for examining, communicating, and understanding the dynamic interactions between the Earth System above and below the land surface as well as the opportunities and limits of groundwate...
Technical Report
Currently, natural resources related datasets for Texas are scattered across disparate data sources and in heterogeneous spatial and temporal resolutions and formats. Frictions related to extraction, processing, and interpretation of data hinder timely decision making activities using this valuable natural resources information. This is especially...
Presentation
Full-text available
Assessing freshwater availability in the Middle East (ME) and North Africa (MENA) is crucial to sustaining the life of about ~0.5 billion people who live in this region. Rapid population growth along with climate change imposes additional stresses and limiting the reserve of freshwater resources. The Gravity Recovery and Climate Experiment (GRACE)...
Article
Full-text available
Groundwater forms the basis of water supplies across much of Africa and its development is rising as demand for secure water increases. Recharge rates are a key component for assessing groundwater development potential, but have not been mapped across Africa, other than from global models. Here we quantify long-term average (LTA) distributed ground...
Article
Full-text available
Abstract The Gravity Recovery and Climate Experiment (GRACE) satellite mission and its follow-on, GRACE-FO, have provided unprecedented opportunities to quantify the impact of climate extremes and human activities on total water storage at large scales. The approximately one-year data gap between the two GRACE missions needs to be filled to maintai...
Article
Population growth and climate variability highlight the need to enhance freshwater security and diversify water supplies. Subsurface storage of water in depleted aquifers is increasingly used globally to alleviate disparities in water supply and demand often caused by climate extremes including floods and droughts. Managed aquifer recharge (MAR) st...
Chapter
Groundwater, the largest available global freshwater resource, plays a crucial role in human sustenance and global food security through drinking water supplies and irrigated agriculture. In recent times, many parts of the world have been experiencing discernable, large-scale groundwater depletion, and pollution. A large groundwater-dependent popul...
Article
The transboundary Tigris-Euphrates Basin (TEB) is prone to water-scarcity disputes. Water scarcity is related to aridity, climate extremes, limited supplies, upstream reservoir storage, rising water demand, and population growth. Understanding the water budget and storage changes in the basin in relation to hydrological extremes is fundamental to m...
Article
Full-text available
An amendment to this paper has been published and can be accessed via a link at the top of the paper.
Presentation
This project extends and expands toolsets that were started under the Water Averaging project for data imputation, scaling, and homogenization (DISH) for Texas natural resources and to support integrated cross‐sector modeling. Spanning a wide range of climatic regimes, Texas relies on water extracted from rivers and aquifers within its own borders....
Article
Full-text available
GRACEsatellite data are widely used to estimategroundwater (GW) storage (GWS) changes in aquifers globally; however, comparisons with GWmonitoring and modeling data are limited. Here we comparedGWSchanges from GRACE over 15 years (yr) (2002–2017)in 14 major U.S. aquiferswithGW-level (GWL) monitoring data in ~23,000 wells and with regional and globa...
Article
Full-text available
The Wolfcamp Shale within the Delaware Basin of West Texas and southeastern New Mexico is one of the largest unconventional oil reservoirs globally and also produces high volumes of relatively low salinity water. In contrast, the overlying Bone Spring Formation and, particularly, the shallower Delaware Mountain Group contain very saline brines. The...
Article
Full-text available
River runoff is estimated as a water budget residual using Gravity Recovery and Climate Experiment (GRACE) terrestrial water storage time series, ERA5 reanalysis data, and precipitation observations for January 2003 through December 2015 for the Obidos upstream drainage basin and for the entire Amazon basin. Estimated runoff based on the water budg...
Preprint
Full-text available
Continental- to global-scale hydrologic and land surface models increasingly include representations of the groundwater system, driven by crucial Earth science and sustainability problems. These models are essential for examining, communicating, and understanding the dynamic interactions between the Earth System above and below the land surface as...
Article
Full-text available
Groundwater (GW) overexploitation is a critical issue in North China with large GW level declines resulting in urban water scarcity, unsustainable agricultural production, and adverse ecological impacts. One approach to addressing GW depletion was to transport water from the humid south. However, impacts of water diversion on GW remained largely un...
Article
Full-text available
Study region India Study focus India boasts the largest irrigated agricultural system in the world relying on groundwater. To address the strong linkages between the natural groundwater and the anthropogenic irrigated system requires innovative hydrological modeling geared at informing national policies on groundwater management and future develop...
Data
Supplemental data for "Spring discharge and thermal regime of a groundwater dependent ecosystem in an arid karst environment", Journal of Hydrology, v. 587 124947, doi: 10.1016/j.jhydrol.2020.124947.
Article
In semi-arid regions, groundwater-dependent ecosystems rely on stable hydro-thermal regimes where refugia have supported aquatic biota for millennia. In karst systems, springs provide consistent flows and stenothermal conditions that buffer extremes. Our objective was to assess the impacts of spring discharge on instream temperatures, using the pri...
Article
Full-text available
The data in this report are associated with https://doi.org/10.1016/j.scitotenv.2020.137085 and include data on water volumes and water quality related to the major unconventional oil and gas plays in the U.S.. The data include volumes of water co-produced with oil and gas production, county-level estimates of annual water use volumes by various se...
Article
Full-text available
Rapid growth in U.S. unconventional oil and gas made energy more available and affordable globally, but brought environmental concerns, especially related to water. We analyzed water-related sustainability of energy extraction focusing on: (a) meeting rapidly rising water demand for hydraulic fracturing (HF), and (b) managing rapidly growing volume...
Article
Full-text available
There is increasing interest in beneficial uses of large volumes of wastewater co-produced with oil and gas extraction (produced water, PW) because of water scarcity, potential subsurface disposal limitations, and regional linkages to induced seismicity. Here we quantified PW volumes relative to water demand in different sectors and PW quality rela...
Article
Subsurface disposal of salt water coproduced with oil and gas has become a critical issue in the United States because of linkages with induced seismicity, as seen in Oklahoma and northcentral Texas. Here, we assess the spatiotemporal and stratigraphic variations of salt-water disposal (SWD) volumes in the Permian Basin. The results of this analysi...
Article
Full-text available
Satellite remote sensing combined with water balance calculations provides a promising approach to estimating evapotranspiration (ET), a critical variable in water-energy exchange. Here we compare ET estimates from terrestrial and atmospheric water balances, multisource remote sensing (AVHRR, GLEAM, and MOD16), and a land surface model (GLDAS NOAH)...
Article
Full-text available
The spatiotemporal variability of soil water content (SWC) at the remote sensing scale requires dense monitoring for calibration and validation. Here, we present an overview of the Texas Soil Observation Network (TxSON), an intensively monitored area in the semiarid rangelands of the central Texas Hill Country. TxSON is a dense network consisting o...
Article
Full-text available
Groundwater in sub-Saharan Africa supports livelihoods and poverty alleviation1,2, maintains vital ecosystems, and strongly influences terrestrial water and energy budgets³. Yet the hydrological processes that govern groundwater recharge and sustainability—and their sensitivity to climatic variability—are poorly constrained4,5. Given the absence of...
Article
Full-text available
Big Data and machine learning (ML) technologies have the potential to impact many facets of environment and water management (EWM). Big Data are information assets characterized by high volume, velocity, variety, and veracity. Fast advances in high-resolution remote sensing techniques, smart information and communication technologies, and social me...
Article
Full-text available
Plain Language Summary We are relying more and more on global models to understand the water cycle, but we need to assess the reliability of model output. In this study we compare seasonal amplitudes in land total water storage from global models with those from GRACE satellite data in river basins globally. We found that seasonal amplitudes in tot...
Preprint
Continental- to global-scale hydrologic models increasingly include representations of the Earth’s groundwater system. A key question is how to evaluate the realism and performance quality of such large-scale groundwater models given limitations in data availability. We argue for a transparent approach to system conceptualization, which would enabl...
Article
Full-text available
Extreme flooding from Hurricane Harvey (∼100 km 3 , ∼80 million acre feet, maf of rainfall) in Houston, Texas, US co-located with depleted aquifers raises the question of whether we can capture floodwater to reduce flooding impacts and replenish aquifers for droughts. Here we quantified how much water could be captured from high magnitude flows (HM...
Article
In Sub-Saharan Africa, groundwater use is a vital strategy to meet rapid increases in freshwater demand projected this century and to adapt to the region’s substantial variabilities in rainfall and surface water resources, amplified by climate change. Four studies are considered, which constitute a topical collection of articles that provide new in...
Article
Full-text available
Groundwater recharge sustains groundwater discharge, including natural discharge through springs and the base flow to surface water as well as anthropogenic discharge through pumping wells. Here, for the first time, we compute long-term (1996–2015) groundwater recharge rates using data retrieved from several groundwater-level monitoring locations a...
Article
Hydraulic fracturing (HF) operations have transformed the unconventional energy industry, leading to a global increase in hydrocarbon production. Despite this, only the US, China, Canada and Argentina currently dominate production of unconventional resources, with the majority of shale basins globally remaining unprofitable to develop. An important...
Article
Full-text available
Global hydrological and land surface models are increasingly used for tracking terrestrial total water storage (TWS) dynamics, but the utility of existing models is hampered by conceptual and/or data uncertainties related to various underrepresented and unrepresented processes, such as groundwater storage. The gravity recovery and climate experimen...
Article
Full-text available
With the U.S. unconventional oil revolution, adverse impacts from subsurface disposal of coproduced water, such as induced seismicity, have markedly increased, particularly in Oklahoma. Here, we adopt a new, more holistic analysis by linking produced water (PW) volumes, disposal, and seismicity in all major U.S. unconventional oil plays (Bakken, Ea...
Technical Report
Full-text available
Report focuses on the major U.S. shale gas plays, Barnett, Fayetteville, Haynesville, and Marcellus providing the updates on resource-in-place, productivity and profitability assessments and concluding with outlook projections under different scenarios.
Article
The sustainability of biofuels depends on considering the environmental consequences of using water and land resources for bioenergy production. The objective of this study was to assess the potential for biofuel crop expansion by combining water footprint, water availability, and land availability in the last agricultural frontier region of Brazil...
Article
Full-text available
Groundwater recharge sustains groundwater discharge, including natural discharge through springs and base flow to surface water as well as anthropogenic discharge through pumping wells. Here, for the first time, we compute long-term (1996–2015) groundwater recharge rates using data retrieved from several groundwater level monitoring locations acros...
Article
Full-text available
Assessing reliability of global models is critical because of increasing reliance on these models to address past and projected future climate and human stresses on global water resources. Here, we evaluate model reliability based on a comprehensive comparison of decadal trends (2002-2014) in land water storage from seven global models (WGHM, PCR-G...
Article
Full-text available
Global assessment of the spatiotemporal variability in terrestrial total water storage anomalies (TWSA) in response to hydrologic extremes is critical for water resources management. Using TWSA derived from the gravity recovery and climate experiment (GRACE) satellites, this study systematically assessed the skill of the TWSA-climatology (TC) appro...
Article
Full-text available
The Permian Basin is being transformed by the "shale revolution" from a major conventional play to the world's largest unconventional play, but water management is critical in this semiarid region. Here we explore evolving issues associated with produced water (PW) management and hydraulic fracturing water demands based on detailed well-by-well ana...