Adam Milewski

Adam Milewski
University of Georgia | UGA · Department of Geology

PhD

About

135
Publications
25,875
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1,682
Citations
Additional affiliations
August 2016 - October 2017
University of Georgia
Position
  • Professor

Publications

Publications (135)
Article
Full-text available
Brackish to saline groundwater in arid environments encourages the development and sustainability of inland freshwater lenses (IFLs). While these freshwater resources supply much-needed drinking water throughout the Arabian Peninsula and other drylands, little is understood about their sustainability. This study presents a numerical model using the...
Article
Full-text available
Composite indicators are popular tools for assessing and comparing multidimensional phenomena in different countries. This paper tests the methodology of the Groundwater Risk Index (GRI), a water vulnerability composite index developed to evaluate groundwater depletion in the Middle East and North Africa (MENA) region (Lezzaik et al. 2018). A sensi...
Article
Full-text available
Algal blooms, especially those composed of toxic phytoplankton, are a global threat to eutrophic and mesotrophic freshwater reservoirs. While extreme hydrologic events such as flooding and drought have been shown to control bloom onset and success, the spatiotemporal dynamics of these relationships are still unclear for mesotrophic reservoirs. In t...
Article
Full-text available
Natural and human-induced impacts on water resources across the globe continue to negatively impact water resources. Characterizing the hydrologic sensitivity to climatic and anthropogenic changes is problematic given the lack of monitoring networks and global-scale model uncertainties. This study presents an integrated methodology combining satell...
Article
Full-text available
Accurate assessments of groundwater resources in major aquifers across the globe are crucial for sustainable management of freshwater reservoirs. Observations from the Gravity Recovery and Climate Experiment (GRACE) satellite have become invaluable as a means to identify regions groundwater change. While there is a large body of research that focus...
Article
Full-text available
http://www.springer.com/home?SGWID=0-0-1003-0-0&aqId=3802765&download=1&checkval=a273a3e4678d5dd10ff7a6dbb8d33831 Upper-Brantas watershed in East Java, Indonesia, is a tropical watershed experiencing rapid landscape change, a phenomenon typical to developing countries. This study demonstrates the impact of Land Use Land Cover (LULC) changes on sur...
Article
Full-text available
With continued threat from climate change and human impacts, high-resolution and continuous hydrologic data accessibility has a paramount importance for predicting trends and availability of water resources. This study presents a novel machine learning (ML)-based downscaling algorithm that produces a high spatial resolution groundwater level anomal...
Article
Full-text available
Strip-mined land (SML) disturbed by coal mining is a non-crop land resource that can be utilized to cultivate high-yielding energy crops such as miscanthus for bioenergy applications. However, the biomass yield potential, annual availability, and environmental impacts of growing energy crops in SML are less understood. In this study, we estimated t...
Article
Dryland inland freshwater lenses (IFLs) that have been topographically induced are represented using physically modeled laboratory simulations, to characterize the stages of IFL evolution (i.e. formation, migration, degradation) as a function of recharge rate. Arid regions with shallow brackish to saline groundwater possess IFLs. The position and g...
Article
Efforts to evaluate sinkhole formation and quantify the controlling factors are hindered by the lack of historical observations or coarse resolution datasets in many areas. We applied recent advances in GIS-based sinkhole mapping and spatial statistics to comprehensively investigate the factors controlling sinkhole formation in the mantled karst se...
Article
Overreliance on predominantly non-renewable groundwater resources and their subsequent depletion has given rise to adverse environmental, political, economic, and social effects. The high costs of groundwater depletion are exacerbated by the notable absence of tools designed to identify and diagnose areas at risk of groundwater degradation. In this...
Article
Full-text available
The regional-scale consistency between four precipitation products from the GPCC, TRMM, WM, and CMORPH datasets over the Arabian Peninsula was assessed. Their macroscale relationships were inter-compared with soil moisture and total water storage (TWS) estimates from AMSR-E and GRACE. The consistency analysis was studied with multivariate statistic...
Article
Investigating terrestrial water cycle dynamics is vital for understanding the recent climatic variability and human impacts in the hydrologic cycle. In this study, a downscaling approach was developed and tested, to improve the applicability of terrestrial water storage (TWS) anomaly data from the Gravity Recovery and Climate Experiment (GRACE) sat...
Article
The Middle East and North Africa (MENA) region is the world’s most water-stressed region, with its countries constituting 12 of the 15 most water-stressed countries globally. Because of data paucity, comprehensive regional-scale assessments of groundwater resources in the MENA region have been lacking. The presented study addresses this issue by us...
Article
Full-text available
Numerous global precipitation products have been developed and calibrated. However, their performance over arid regions such as the United Arab Emirates (UAE) has been revealing notable differences triggered by a combination of climatic and terrestrial attributes. The objective of this study is to cross-validate and analyze the consistency of four...
Conference Paper
Full-text available
The goal of this study was to: (i) assess the regional-scale consistency of four distinct precipitation products from the GPCC, TRMM, WM, and CMORPH datasets, and (ii) inter-compare their macroscale influence on AMSR-E soil moisture and GRACE water storage readings over the Arabian Peninsula. The consistency was studied locally using precipitation...
Conference Paper
Full-text available
The Critical Zone is the constantly evolving boundary layer where rocks, soil, water, and living organisms interact. These complex interactions determine the availability of resources including water quality and food production. Spatial and temporal investigations of the δ18O and δD in waters that flux through the critical zone offers the potential...
Article
Enhanced measurement of the variation of the terrestrial water cycle are imperative to better understand the dynamics, water availability, and evaluate impacts of global changes on the water cycle. This study quantified storage in the various terrestrial water compartments using an integrated hydrologic model (IHM) - MIKE SHE that simulates the ent...
Poster
Full-text available
The Middle East and North Africa (MENA) region is by far the most water stressed region; with its countries constituting 15 of the 20 most water stressed nations worldwide. As a consequence of data paucity, comprehensive regional-scale assessments of groundwater resources in the MENA region have been lacking. The following study addresses this issu...
Article
Full-text available
The Algerian coastline hosts a diversity of valuable ecosystems, including wetlands of high ecological and economic value. Rare are those who still remain in good ecological condition: excessive exploitation of resources, urbanization, and low environmental awareness for the conservation of this natural heritage are the main causes of their degrada...
Article
Full-text available
TRMM Multi-satellite Precipitation Analysis (TMPA) satellite precipitation products have been utilized to quantify, forecast, or understand precipitation patterns, climate change, hydrologic models, and drought in numerous scientific investigations. The TMPA products recently went through a series of algorithm developments to enhance the accuracy a...
Conference Paper
Full-text available
The Upper Floridan Aquifer (UFA) is an important water source for agricultural and municipal purposes in Dougherty County. However, prolonged water demand, dissolution of the carbonate aquifer (Ocala Limestone), and short and long-term fluctuations in precipitation, surface water discharge, and groundwater levels have placed many areas at risk for...
Conference Paper
Characterization of factors controlling the terrestrial water cycle (TWC) is imperative to better understand the dynamics, predict water storage and availability, and evaluate impacts on the water cycle due to global changes. This study utilizes and compares time-series data from satellite- and model-based products of the terrestrial water storage....
Article
Significant changes have been observed in the hydrology of Central Rift Valley (CRV) lakes in Ethiopia, East Africa as a result of both natural processes and human activities during the past three decades. This study applied an integrated approach (remote sensing, hydrologic modelling, and statistical analysis) to understand the relative effects of...
Article
Full-text available
The Algerian coastline hosts a diversity of valuable ecosystems, including wetlands of high ecological and econo mic value. Rare are those who still remain in good ecological condition: excessive exploitation of resources, urbanization, and low environmental awareness for the conservation of this natural heritage are the main causes of their degrad...
Conference Paper
The River Nile is the main source of fresh water in Egypt. Most of Egypt’s River Nile water (>85%) originates as precipitation over the Ethiopian highlands and is channeled by the Blue Nile. The construction (years: 2011 to 2017) of the Renaissance Dam (reservoir capacity: 70 x 109m3) on the Blue Nile poses an extreme threat to Egypt’s population....
Article
Study region: Mojave Desert, USA. Study focus: An integrated (near-surface geophysics, remote sensing, isotopic analyses) study was conducted in the Mojave River Basin and Morongo Groundwater Basin to investigate potential effects that the Helendale Fault [HF] and basement uplifts might have on groundwater flow in the Mojave Desert. New hydrologica...
Conference Paper
Full-text available
The Upper Floridan Aquifer (UFA) has provided important ecosystem services in Dougherty County for several decades. Alongside increased water demand due to a growing populace in an agricultural area, this area has experienced short and long-term fluctuations in precipitation, surface water discharge, and well levels. Located within karst terrain in...
Poster
Full-text available
Global groundwater is declining as a function of over extraction, pollution, and climate change effects on precipitation. While the dwindling of groundwater resources has been noticed, a holistic and accurate assessment of groundwater storage change (GWSC) patterns and distributions has never been conducted given the global scale of the assessment...
Conference Paper
We integrated (in a Geographic Information System [GIS] environment) observations from remote sensing data (Gravity Recovery and Climate Experiment [GRACE], Environmental Satellite [Envisat], Tropical Rainfall Measuring Mission [TRMM], Landsat Thematic Mapper [TM], Google Earth images) with geophysical (Very Low Frequency [VLF], Vertical Electrical...
Article
Full-text available
An integrated approach was adopted over Faifa Mountain and its surroundings, in Saudi Arabia, to identify landslide types, distribution, and controlling factors, and to generate landslide susceptibility maps. Given the inaccessibility of the area, we relied on remote sensing observations and GIS-based applications to enable spatial analysis of data...
Article
Satellite observations were used to test the validity of previously identified favourable conditions for the formation of freshwater lenses, identify additional potential occurrences, and model modern potential recharge in the Raudhatain Watershed (3696) in northern Kuwait. Favourable conditions include infrequent yet intensive precipitation events...
Article
Sixteen groundwater samples collected from production wells tapping Lower Cretaceous Nubian Sandstone and 25 fractured basement aquifers in Sinai were analyzed for their stable isotopic compositions, dissolved noble gas concentrations (recharge temperatures), tritium activities, and 14C abundances. Results define two groups of samples: Group I has...
Presentation
Full-text available
Eighth International Conference on the Geology of The Middle East
Presentation
Full-text available
Eighth International Conference on the Geology of The Middle East
Presentation
Full-text available
Eighth International Conference on the Geology of The Middle East
Poster
Full-text available
Optimal water management practices and strategies, in arid and semi-arid environments, are often hindered by a lack of quantitative and qualitative understanding of hydrological processes. Moreover, progressive overexploitation of groundwater resources to meet agricultural, industrial, and domestic requirements is drawing concern over the sustainab...
Article
An integrated approach was adopted over Faifa Mountain and its surroundings, Saudi Arabia, to identify landslide types, distribution, and controlling factors, and to generate landslide hazard maps (HMs). Given the inaccessibility of the area, we relied on remote sensing observations and GIS-based applications to enable spatial analysis of data and...
Presentation
Full-text available
The isotopic composition of modern precipitation collected monthly from the International Atomic Energy Agency (IAEA) stations over North Africa is enriched (average δD ± 1δ: Algeria: –21.3‰ ± 8.81‰; Tunisia: –20.6‰ ± 4.23‰; Libya: –17.7‰ ± 2.72‰; Egypt: –11.7‰ ± 3.45‰) compared to fossil groundwater across North Africa and shows progressive west-t...
Chapter
Integrated studies (hydrogeology, geochemistry, remote sensing, geographic information systems, geophysics, and hydrologic modeling) were conducted to investigate the hydrologic setting of the Nubian Sandstone Fossil Aquifer of northeast Africa and to assess the response of the system to climatic and anthropic forcing parameters. Results indicate:...
Article
Full-text available
Hydrological assessment studies across vast regions of the arid world are often hindered by the inaccessibility of these areas and the paucity of data sets, as well as the high expenses and difficulties entailed in acquiring these data sets, their unpublished nature, and their varying scales, projections, and datum. Using the Eastern Desert (ED) of...
Conference Paper
An integrated (near-surface geophysics, remote sensing, field, isotope geochemistry) study was conducted in the Mojave Basin to investigate the potential role of faults and basement uplifts for groundwater flow in the Mojave Desert. Observations made include: (1) Very Low Frequency (VLF) measurements (25 transects) across mapped (using LIDAR and Ge...
Conference Paper
The use of GIS and remote sensing in water resources management has helped decision makers to reach their objectives with a minimum of effort and cost, in contrast to traditional tools such as field investigations and measurement campaigns. This has become possible because of the compilation of time series data on surface water hydrology (rainfall,...
Article
The isotopic composition of modern precipitation collected monthly from the International Atomic Energy Agency (IAEA) stations over North Africa is enriched (average δD: Morocco: -25.8‰; Algeria: -21.3‰; Tunisia: -20.6‰; Libya: -17.7‰; Egypt: -11.7‰) compared to fossil groundwater across North Africa, which shows progressive west-to-east depletion;...
Article
Full-text available
The lack of adequate field measurements often hampers the construction and calibration of rainfall-runoff models over many of the world’s watersheds. We adopted methodologies that rely heavily on readily available remote sensing datasets as viable alternatives for assessing, managing, and modelling of such remote and inadequately gauged regions. Th...
Article
Inter-annual trends in terrestrial water storage (TWS) were extracted from monthly Gravity Recovery and Climate Experiment (GRACE) data acquired (04/2002 to 08/2011) over the Nile River Basin (NRB) and correlated (in a GIS environment) with the inter-annual trends extracted from TRMM data that span the same time period and with other relevant tempo...
Article
Integrated studies (remote sensing, GIS, hydrogeology, geochemistry, geophysics, and hydrologic modeling) were conducted to investigate the hydrologic setting of the Nubian Sandstone Fossil Aquifer of northeast Africa, and to assess the response and of the system to climatic and anthropic forcing parameters. Results indicate: (1) the Nubian Aquifer...
Article
The deviation of the sea surface temperature (SST) from the normal in the equatorial Pacific Ocean is usually expressed by the El Niño/ La Niña cycles where El Niño is characterized by unusually warm temperatures and La Niña by unusually cool temperatures in the equatorial Pacific. These two cycles not only change the precipitation patterns in the...
Article
We adopted an integrated (field and remote sensing) approach to map the distribution of landslides and to identify their controlling factors in the Jazan area, Red Sea Hills, Saudi Arabia. Our approach depends on: (1) Identification and characterization of known landslide locations using field and/or high resolution remote sensing data sets, (2) ex...
Conference Paper
Two main hypotheses have been advocated to address the origin of the fossil water of the Nubian Aquifer: (1) intensification of paleowesterlies during glacial periods and (2) intensification of paleomonsoons during interglacial periods. Seven groundwater samples were collected from deep (>300 m <800 m) productive wells tapping the Lower Cretaceous...
Conference Paper
The Gravity Recovery and Climate Experiment (GRACE) data provides direct measurements of temporal mass variations; the latter is largely controlled by variations in water volumes in various reservoirs such as surface water (e.g., lakes and streams), groundwater (e.g., shallow and deep aquifers) and in the soil profile. Climatic changes impact the a...