Item Type | Conference Paper |
---|---|
Author | Nikhil Sangwan |
Author | Gregory Byard |
URL | https://www.illinoisfloods.org/content/documents/3b_impacts_of_watershed_specific_release_rates.pdf |
Publisher | IAFSM |
Date | 2023-03-14 |
Conference Name | Illinois Association for Floodplain and Stormwater Management Annual Conference March 14-15, 2023. Tinley Park, Illinois |
Item Type | Journal Article |
---|---|
Author | Samuel Dorevitch |
Author | Sarah D. Geiger |
Author | Walton Kelly |
Author | David E. Jacobs |
Author | Hakan Demirtas |
URL | https://www.nature.com/articles/s41370-023-00534-0 |
Rights | 2023 The Author(s) |
Pages | article in press |
Publication | Journal of Exposure Science & Environmental Epidemiology |
ISSN | 1559-064X |
Extra | Publisher: Nature Publishing Group |
DOI | 10.1038/s41370-023-00534-0 |
Accessed | 2023-04-12 19:02:35 |
Library Catalog | Web of Science Nextgen |
Language | English |
Abstract | BACKGROUND: Lead can be present in drinking water in soluble and particulate forms. The intermittent release of lead particulates in drinking water can produce highly variable water lead levels (WLLs) in individual homes, a health concern because both particulate and soluble lead are bioavailable. More frequent water sampling would increase the likelihood of identifying sporadic lead "spikes," though little information is available to aid in estimating how many samples are needed to achieve a given degree of sensitivity to spike detection. OBJECTIVE: To estimate the number of rounds of tap water sampling needed to determine with a given level of confidence that an individual household is at low risk for the intermittent release of lead particulates. METHODS: We simulated WLLs for 100,000 homes on 15 rounds of sampling under a variety of assumptions about lead spike release. A Markovian structure was used to describe WLLs for individual homes on subsequent rounds of sampling given a set of transitional probabilities, in which homes with higher WLLs at baseline were more likely to exhibit a spike on repeated sampling. RESULTS: Assuming 2% of homes had a spike on the first round of sampling and a mid-range estimate of transitional probabilities, the initial round of sampling had a 6.4% sensitivity to detect a spike. Seven rounds of sampling would be needed to increase the sensitivity to 50%, which would leave unrecognized the more than 15,000 homes that intermittently exhibit spikes. SIGNIFICANCE: For assessing household risk for lead exposure through drinking water, multiple rounds of water sampling are needed to detect the infrequent but high spikes in WLLs due to particulate release. Water sampling procedures for assessment of lead exposure in individual homes should be modified to account for the infrequent but high spikes in WLL. IMPACT: It has been known for decades that intermittent "spikes" in water lead occur due to the sporadic release of lead particulates. However, conventional water sampling strategies do not account for these infrequent but hazardous events. This research suggests that current approaches to sampling tap water for lead testing identify only a small fraction of homes in which particulate spikes occur, and that sampling procedures should be changed substantially to increase the probability of identifying the hazard of particulate lead release into drinking water. |
Short Title | Repeated home drinking water sampling to improve detection of particulate lead spikes |
Archive | Scopus |
Item Type | Preprint |
---|---|
Author | Chamteut Oh |
Author | Aijia Zhou |
Author | Kate O’Brien |
Author | Arthur R Schmidt |
Author | Joanna L. Shisler |
Author | Arthur R Schmidt |
Author | Laura Keefer |
Author | William M. Brown |
Author | Thanh H. Nguyen |
URL | http://medrxiv.org/lookup/doi/10.1101/2023.03.13.23286721 |
Date | 2023-03-16 |
Extra | DOI: 10.1101/2023.03.13.23286721 |
DOI | 10.1101/2023.03.13.23286721 |
Accessed | 2023-04-12 19:02:07 |
Library Catalog | DOI.org (Crossref) |
Language | en |
Abstract | Nucleic acid-based assays, such as polymerase chain reaction (PCR), that amplify and detect organism-specific genome sequences are a standard method for infectious disease surveillance. However, challenges arise for virus surveillance because of their genetic diversity. Here, we calculated the variability of nucleotides within the genomes of ten human viral species in silico and found that endemic viruses exhibit a high percentage of variable nucleotides (e.g., 51.4% for norovirus GII). This genetic diversity led to variable probability of detection of PCR assays (the proportion of viral sequences that contain the assay’s target sequences divided by the total number of viral sequences). We then experimentally confirmed that the probability of the target sequence detection is indicative of the number of mismatches between PCR assays and norovirus genomes. Next, we developed a degenerate PCR assay that detects 97% of known norovirus GII genome sequences and recognized norovirus in eight clinical samples. In contrast, previously developed assays with 31% and 16% probability of detection had 1.1 and 2.5 mismatches on average, respectively, which negatively impacted RNA quantification. Additionally, the two PCR assays with lower probability of detection also resulted in false negatives for wastewater-based epidemiology. Our findings suggest that the probability of detection serves as a simple metric for evaluating nucleic acid-based assays for genetically diverse virus surveillance. Importance Nucleic acid-based assays, such as polymerase chain reaction (PCR), that amplify and detect organism-specific genome sequences are a standard method for infectious disease surveillance. However, challenges arise for virus surveillance because of the rapid evolution and genetic variation of viruses. The study analyzed clinical and wastewater samples using multiple PCR assays and found significant performance variation among the PCR assays for genetically diverse norovirus surveillance. This finding suggests that some PCR assays may miss detecting certain virus strains, leading to a compromise in detection sensitivity. To address this issue, we propose a metric called the probability of detection, which can be simply calculated in silico using a code developed in this study, to evaluate nucleic acid-based assays for genetically diverse virus surveillance. This new approach can help improve the sensitivity and accuracy of virus detection, which is crucial for effective infectious disease surveillance and control. |
Genre | preprint |
Repository | medrxiv |
Item Type | Book Section |
---|---|
Author | Wei Wei |
Author | Jun-Ming Wang |
Author | Xiang-Cheng Mi |
Author | Yan-Da Li |
Author | Yan-Ming Zhu |
Editor | W. Wei |
Editor | C. N. Stewart |
URL | https://www.cabidigitallibrary.org/doi/10.1079/9781789247480.0007 |
Place | Wallingford |
Publisher | Cabi Publishing-C a B Int |
Pages | 103-117 |
ISBN | 978-1-78924-749-7 978-1-78924-748-0 |
Date | 2022 |
Extra | DOI: 10.1079/9781789247480.0007 Pages: 103-117 Publication Title: GENE FLOW: Monitoring, Modeling and Mitigation WOS:000944199200008 |
Accessed | 2023-04-12 18:54:18 |
Library Catalog | Web of Science Nextgen |
Language | English |
Abstract | Gene flow from genetically modified (GM) plants is concerning because of its ecological risks. In modeling studies, these risks may be reduced by altering crop management while taking environmental conditions into account. Gene flow modeling should consider many field aspects, both biological and physical. For example, empirical statistical models deduced from experimental data simulate gene flow well only under limited conditions (similar to experimental conditions). Mechanistic models, however, offer a potentially greater predictive ability. Gene flow models from GM crops to non-GM crops are used to simulate field conditions and minimize the adventitious presence of transgenes to meet certain threshold levels. These models can be adapted to simulate gene flow from GM crops to crop wild relatives using parameters of sexual compatibility and growth characteristics of the wild plants. Currently, modeling gene flow from herbicide-resistant weeds has become very important in light of the increased application of herbicides and widely evolved resistance in weeds. |
Book Title | Gene Flow: Monitoring, Modeling and Mitigation |
Item Type | Journal Article |
---|---|
Author | D.B. Abrams |
Author | C. Cullen |
Author | F. Ghiami Shomami |
URL | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85146994859&doi=10.1111%2f1752-1688.13102&partnerID=40&md5=7cdfa58b3fa7f82f7cc65ea19580efba |
Pages | article in press |
Publication | Journal of the American Water Resources Association |
DOI | 10.1111/1752-1688.13102 |
Abstract | Most groundwater modelers avoid using static heads measured from active production wells because they can introduce a bias into model calibration. However, in the deep confined Cambrian-Ordovician Sandstone Aquifer System in the Central Midcontinent of North America, dedicated observation wells are sparse and remote from areas of most concentrated pumping. As a result, in areas where drawdown is the greatest and modeling is most needed, only static heads from production wells are available for calibration. This paper evaluates two leading sources of discrepancies in using production well data, spatial and temporal structural error (S.E.). A simple Theis solution is used to evaluate the potential magnitude of spatial S.E. when calibrating a regional MODFLOW model with coarse cell resolution. Despite theoretical analyses indicating that spatial S.E. could be significant, statistical analysis of the model results suggests that temporal S.E. is dominant. Long (ranging over decades) or frequent (monthly) head datasets are key in understanding temporal S.E., to better capture water-level variability. In this study, the range in static head observations impacted estimates of the remaining time a well could extract water from the aquifer by 0.1 to 16.0 years. This uncertainty in future water supply is highly relevant to stakeholders and must be assessed in hydrographs depicting risk. © 2023 American Water Resources Association. |
Archive | Scopus |
Item Type | Journal Article |
---|---|
Author | C. Cullen |
Author | D.B. Abrams |
Author | D.H. Mannix |
Author | W.R. Kelly |
URL | https://onlinelibrary.wiley.com/doi/full/10.1111/1752-1688.13105 |
Pages | article in press |
Publication | Journal of the American Water Resources Association |
ISSN | 1752-1688 |
Extra | Place: Hoboken Publisher: Wiley WOS:000934936800001 |
DOI | 10.1111/1752-1688.13105 |
Library Catalog | Wiley Online Library |
Abstract | Winter deicers are a major source of chloride contamination to shallow aquifers in northern latitudes. In the greater Chicago area of northeast Illinois, chloride has been accumulating for decades and in many places now exceeds the United States Environmental Protection Agency secondary standard of 250 mg/L. MODFLOW-NWT and MT3D-USGS were used to simulate the accumulation of chloride with 30 years of data in the shallow aquifer of Will County in northeast Illinois. This aquifer is composed of unconsolidated sediments, largely from glacial deposits, overlying a fractured dolomite bedrock. To calibrate to observed heads and chloride, the model needed refined geologic features, higher chloride concentrations on cells representing commercial or industrial lands, lower chloride concentrations on cells representing roads, and point source areas to speed chloride's emergence in the aquifer. These point sources are locally significant and could represent different anthropogenic or geologic features, such as municipal stormwater infrastructure. Future simulations indicate that chloride is not at steady state in the shallow aquifer and wells are at risk of exceeding the secondary standard if winter deicing applications are not reduced. It may take decades for the full impacts of reduced deicing rates to be observed in wells, owing to the long residence time of water in the aquifer. This transient model calibration was possible because of the 30-year dataset collected by communities and government agencies. © 2023 American Water Resources Association. |
Archive | Scopus |
Item Type | Journal Article |
---|---|
Author | April Hiscox |
Author | Sudheer Bhimireddy |
Author | Junming Wang |
Author | David A. R. Kristovich |
Author | Jielun Sun |
Author | Edward G. Patton |
Author | Steve P. Oncley |
Author | William O. J. Brown |
URL | https://journals.ametsoc.org/view/journals/bams/aop/BAMS-D-21-0332.1/BAMS-D-21-0332.1.xml |
Volume | 104 |
Issue | 2 |
Pages | E520-E541 |
Publication | Bulletin of the American Meteorological Society |
ISSN | 0003-0007, 1520-0477 |
Date | 2023 |
Extra | Place: Boston Publisher: Amer Meteorological Soc WOS:000946561000001 |
DOI | 10.1175/BAMS-D-21-0332.1 |
Accessed | 2023-01-18 22:28:10 |
Library Catalog | journals.ametsoc.org |
Language | EN |
Abstract | Abstract Stable boundary layers are still a relatively problematic component of atmospheric modeling, despite their frequent occurrence. While general agreement exists that Monin-Obukhov similarity is not applicable in the stable boundary layer (SBL) due to the non-homogeneous, non-stationary flow, no universal organizing theory for the surface SBL has been presented. The SAVANT (Stable Atmospheric Variability ANd Transport) field campaign took place in the fall of 2018 to explore under what conditions shallow drainage flow is generated. The campaign took place in an agricultural setting and covered the period of both pre- and post-harvest, allowing for not only a basic exploration of the boundary layer but a robust data set for applied agricultural understanding of aerosol dispersion, and impacts of changes in surface cover on drainage flows. This article provides a description of the field campaign. Examples of publicly available data products are presented, as well as examples of shallow drainage flow and corresponding lidar measurements of dispersion. Additionally, the field campaign was used to provide educational opportunities for students from several disciplines and the outcomes of these joint educational ventures are discussed as models for future collaborations. |
Short Title | Exploring influences of shallow topography in stable boundary layers |
Item Type | Conference Paper |
---|---|
Author | Tom Holm |
Author | Steve Wilson |
URL | http://www.illinoisgroundwater.org/meetings/2008f/Fa08Abst.pdf |
Volume | 2008 |
Publisher | Illinois Groundwater Association |
Pages | 8 |
Date | 2008 |
Conference Name | Illinois Groundwater Association 2008 fall meeting, October 22, 2008, Utica, IL |
Abstract | Recent research by the Illinois State Water Survey and others found that arsenic levels in private wells can be difficult to predict, even in areas where elevated arsenic levels are known to occur. Sampling to date has generally been over large areas, with sample points a kilometer or more apart, evaluated at a county or township scale. However, there was one cluster in which a well with 190 μg/L As was located 200-400m from wells with 2 and <0.5 μg/L As (the detection limit). In another cluster, two wells with <0.5 and 44.0 μg/L were on adjoining properties ~100m apart. In the present work, three sets of private wells were selected, in glacial aquifers where previous sampling has shown elevated arsenic in close proximity. In each area, the wells are all within a radius of 1-2 kilometers. The distance between wells is on the order of 10s to 100s of meters. Between 10 and 20 wells in each area are being sampled. Even on this smaller scale, arsenic concentrations ranged from undetectable to ~100 μg/L. The sampling results and their implications will be discussed. |
Proceedings Title | Illinois Groundwater Association 2008 spring meeting abstracts |
Item Type | Conference Paper |
---|---|
Author | Bill P. White |
URL | http://www.illinoisgroundwater.org/meetings/2008_s/Sp08Abst.pdf |
Volume | 2008 |
Publisher | Illinois Groundwater Association |
Pages | 2 |
Date | 2008 |
Conference Name | Illinois Groundwater Association 2008 spring meeting, April 8 2008, East Peoria, IL |
Abstract | Erosion and sediment deposition has been recognized as a main environmental problem in the Illinois River Basin. Project identification in watersheds and streams and implementation of restoration is necessary to reverse the effect of past disturbances and the continued trend toward further ecological and infrastructure degradation. Watershed assessments which identify on-the- ground natural resource restoration targets are well received by the public and by public institutions in charge of funding ecosystem restoration efforts. The Scientific Surveys from the State of Illinois are performing assessment and evaluation of specific watersheds in the Illinois River Basin in order to facilitate implementation of the larger goals of the Illinois River Basin Ecosystem Restoration Plan. Watershed assessments include use of existing data and collection of new data. The assessments includes analysis of existing Geographic Information System (GIS) data, collection of digital aerial imagery of specific sub- basins selected for survey using consensus driven criteria, and field data collection and analysis of geomorphological and biological indicators. Data is being used specifically to locate, characterize, and prioritize multi-objective restoration projects that reduce erosion, restore habitat, and protect overall ecosystem health. Assessment using a low level aerial camera attached to a helicopter with a synchronized Global Positioning System allows for relatively rapid identification of the location and general nature of targets such as critical erosion areas, potential wetland restoration sites, and channel re-meandering opportunities. More thorough biological and geomorphological field assessments are then performed to understand local reach scale erosion issues and systemic causative factors. Senachwine Creek, a direct tributary to Peoria Lakes in the central part of Illinois is used to illustrate the assessment approach. The IGA discussion will briefly describe the framework and criteria for selecting sub-basins, watersheds, and sub-watersheds for the aerial assessment and field data collection efforts and utilize the Senachwine Creek watershed as a case study of specific data interpretation efforts. |
Proceedings Title | Illinois Groundwater Association 2008 spring meeting abstracts |
Item Type | Conference Paper |
---|---|
Author | Walton R. Kelly |
URL | http://www.illinoisgroundwater.org/meetings/2008_s/Sp08Abst.pdf |
Volume | 2008 |
Publisher | Illinois Groundwater Association |
Pages | 8 |
Date | 2008 |
Conference Name | Illinois Groundwater Association 2008 spring meeting, April 8 2008, East Peoria, IL |
Abstract | Population and infrastructure are growing rapidly in the Chicago, Illinois, metropolitan area. Population is projected to increase from 8 million in 2005 to more than 10 million by 2030. Most of the growth is occurring in collar counties such as Kane, McHenry, and Will, where populations may double in that period. Demand for water is also increasing substantially. Shallow bedrock and overlying sand and gravel aquifers, which can be vulnerable to surface contaminants, are expected to be the main sources of water to meet the increased demand in the Chicago region. A statistical study of historical water quality data for shallow aquifers (< 200 ft) has indicated that chloride (Cl - ) concentrations have been increasing since the 1960s, particularly in collar counties west and south of Chicago. The primary source of Cl - is road salt runoff. About 43% of public supply wells in the collar counties have increases in Cl- concentrations greater than 1 mg/L/yr and 15% have increases greater than 4 mg/L/yr. Approximately 24% of the samples collected from public supply wells in the Chicago area in the 1990s had Cl - concentrations greater than 100 mg/L (35% in the collar counties); median values were less than 10 mg/L prior to 1960. The greater increase in Cl - concentrations in the collar counties is likely due to both natural and anthropogenic factors, including the presence of more significant and shallower sand and gravel deposits and less curbing of major highways and streets. Elevated levels of Cl - have also been observed in the Illinois River waterway. In a recent study, samples were collected from the river and selected tributaries from Chicago to its confluence with the Mississippi River over a two-year period. Chloride concentrations in the Illinois River ranged from 40 to 488 mg/L and spiked during the late winter and early spring as a result of road salt runoff. A large component of Cl- throughout the year was attributed to treated wastewater (TWW) from the Chicago area, and during periods of low flow, elevated Cl - levels attributable to TWW were detected all the way to the confluence with the Mississippi River. Chloride concentrations in the Illinois River at Peoria have been increasing since the 1950s; the annual median increased from about 20 mg/L in 1946 to near 100 mg/L in 2005, approximately 1.0 mg/L/yr. The greatest concentrations and rates of increase occur between January and March, due to road salt runoff |
Proceedings Title | Illinois Groundwater Association 2008 spring meeting abstracts |
Item Type | Conference Paper |
---|---|
Author | Daniel R. Hadley |
URL | http://www.illinoisgroundwater.org/meetings/2015_Spring/Spring%202015%20Agenda%20and%20Abstracts.pdf |
Volume | 2015 |
Publisher | Illinois Groundwater Association |
Pages | 5 |
Date | 2015 |
Extra | Publisher: Illinois Groundwater Association, [varies], International |
Conference Name | Illinois Groundwater Association 2015 spring meeting, April 20, 2015, Normal, IL |
Abstract | Groundwater withdrawals from the St. Peter and Ironton-Galesville sandstones in Northern Illinois have led to a decrease in potentiometric heads since pre-development. By 1980, heads in these sandstone aquifers had dropped as much as 800 feet in the Chicagoland area, resulting in a widespread cone of depression. Since 1980 many Chicago suburbs have switched to Lake Michigan water, however, urbanization in the southwest and westernmost suburbs of Chicago has led to an increase in withdrawals. To understand the impact of changing water demand, the Illinois State Water Survey (ISWS) conducted the largest synoptic measurement of water levels in the Cambrian-Ordovician sandstone aquifers of Northern Illinois since 1980. Over 600 water-level measurements were taken in 2014/2015 by ISWS staff using a combination of airline, dropline, and steel tape methods. Water level measurements were also obtained through public water supply records and recent service records from well drilling and service companies. Measurements were used to construct potentiometric surface maps and head change maps, showing the changes in water levels since 1980. Results show a recovery of heads in the Chicagoland region by as much as 200 feet due to the switch to Lake Michigan water, while drawdowns have occurred in the western/southwestern Chicago suburbs due to continued or increased pumping. Drawdowns in the southwestern suburbs are more pronounced in communities located close to the Sandwich Fault Zone, which acts as a flow barrier. Drawdowns have also occurred around the Rockford area and regionally throughout Northwestern and Western Illinois. |
Proceedings Title | Illinois Groundwater Association 2015 spring meeting; agenda and abstracts |
Item Type | Journal Article |
---|---|
Author | Liang Chen |
Author | Trent W. Ford |
Author | Erik Swenson |
URL | https://journals.ametsoc.org/view/journals/clim/aop/JCLI-D-22-0245.1/JCLI-D-22-0245.1.xml |
Volume | 36 |
Issue | 6 |
Pages | 1943-1956 |
Publication | Journal of Climate |
ISSN | 0894-8755, 1520-0442 |
Date | 2023 |
Extra | Place: Boston Publisher: Amer Meteorological Soc WOS:000937314800001 |
DOI | 10.1175/JCLI-D-22-0245.1 |
Accessed | 2022-12-21 17:47:28 |
Library Catalog | journals.ametsoc.org |
Language | EN |
Abstract | Abstract Recent studies suggest springtime wet extremes and summertime dry extremes will occur more frequently in the US Midwest, potentially leading to devastating agricultural consequences. To understand the role of circulation patterns in the projected changes in seasonal precipitation extremes, the k-means clustering approach is applied to the large ensemble experiments of Community Earth System Model version 2 (CESM2-LE) and ensemble projections of CMIP6. We identify two key atmospheric circulation patterns that are associated with the extremely wet spring and extremely dry summer in the US Midwest. The springtime wet extremes are typically linked to baroclinic waves with a northward shift of the North American westerly jet and positive anomalies in sea level pressure over the western Atlantic, which favor the development of the Great Plains low-level jet. The summertime dry extremes are associated with the development of an anomalous ridge with suppressed storm tracks over the central US. The projected increase in springtime wet extremes and summertime dry extremes can be attributed to significantly more frequent occurrences of the associated atmospheric regimes. Particularly, the intensity of wet extremes is expected to increase mainly due to the enhanced moisture flux from the Gulf of Mexico. The moisture budget analysis suggests that the precipitation extremes are mainly associated with the dynamic component of atmospheric circulation. CESM2-LE and CMIP6 exhibit a good agreement in the projected changes in circulation patterns and precipitation extremes. Our results explain the mechanism of the projected changes in the Midwest seasonal precipitation, and highlight the contribution of circulation patterns to hydroclimatic extremes. |
Item Type | Conference Paper |
---|---|
Author | Yi-Chen E. Yang |
Author | Yu-Feng F. Lin |
URL | http://www.illinoisgroundwater.org/meetings/2010_Fall/Agenda%20and%20Abstract%202010.pdf |
Volume | 2010 |
Publisher | Illinois Groundwater Association, [varies], International |
Pages | 4 |
Date | 2010 |
Library Catalog | Engineering Village |
Conference Name | Illinois Groundwater Association 2010 Fall Meeting, September 24, 2010, Hoffman Estates, IL |
Abstract | Managing Water Resources Using WebGIS: Development and Application of an ArcGIS Explorer Toolkit for McHenry County Yi-Chen E. Yang and Yu-Feng F. Lin Illinois State Water Survey Institute of Natural Resources Sustainability University of Illinois Integration of GIS with decision support systems (DSS) for environmental resources management has been a popular issue for more than a decade. A GIS-based DSS permits visualization of considerations pertinent to the decision-making process and allows informed participation by the non-technical decision maker. However, the information and knowledge contained in GIS datasets cannot be fairly and efficiently shared until all interested parties have access to GIS software. This problem has been addressed with the recent release by the Environmental Systems Research Institute, Inc. (ESRI) of a free, lightweight GIS browser, ArcGIS Explorer, a development with significant promise for community participation in planning via a GIS-based DSS. The ubiquitous WebGIS Analysis Toolkit for Extensive Resources (uWATER) is an ArcGIS Explorer plug-in package developed by the Illinois State Water Survey for visualizing and analyzing decision support variables such as groundwater modeling results. The uWATER package was coded in Microsoft Visual Basic and designed to utilize the computing capacity of a single laptop computer. This presentation will demonstrate an application using uWATER for groundwater resource management in McHenry County including: 1) visualizing heads computed by a numerical model; 2) computing drawdown; 3) identifying hydrologic assets (such as fish habitats, streams, and wetlands) threatened by pumping. uWATER is free and can be downloaded from http://www.sws.uiuc.edu/gws/sware/uwater/. The download package includes the plug-in program, user's guide, and sample files. |
Proceedings Title | Illinois Groundwater Association 2010 fall meeting; agenda and abstracts |
Item Type | Conference Paper |
---|---|
Author | Samuel V. Panno |
Author | Walton R. Kelly |
Author | Askari Zohreh |
Author | Thomas M. Parris |
URL | http://www.illinoisgroundwater.org/meetings/2015_Spring/Spring%202015%20Agenda%20and%20Abstracts.pdf |
Volume | 2015 |
Publisher | Illinois Groundwater Association |
Pages | 10 |
Date | 2015 |
Extra | Publisher: Illinois Groundwater Association, [varies], International |
Library Catalog | Engineering Village |
Conference Name | Illinois Groundwater Association 2015 spring meeting, April 20, 2015, Normal, IL |
Abstract | The Illinois Basin, initially developed on Precambrian crust, occupies most of Illinois, and parts of Indiana, Kentucky and Tennessee, and is filled with Cambrian through Pennsylvanian-age sedimentary rocks. Paleozoic sandstones and carbonate rocks in northern Illinois are productive aquifers; however, groundwater in these rocks have a high salinity in central and southern Illinois. Seigel (1989) and Cartwright (1970) suggested that groundwater generally flows toward the center of the Illinois Basin and discharged as upward leakage across confining units. However, details of recharge to and groundwater flow within the Illinois Basin on a basin scale are poorly understood. Our investigation involves the use of saline springs and geochemical cross sections to explore this question. In the course of this investigation, more than 40 locations of “mineral” and saline springs within and at the margins of the Illinois Basin were identified and investigated. Saline springs originate from Cambrian- to Pennsylvanian-age sedimentary rocks. Most springs were sampled for chemical and isotopic composition with emphasis on halide chemistry (Cl- , Br - , I - ). In addition, six cross sections across the Illinois Basin were prepared and included all available Cl- concentrations to help evaluate local and regional groundwater movement into, within, and discharge from the basin. Of the springs identified and sampled, only 23 were naturally-occurring saline springs and saline anomalies (plumes of saline groundwater discharging within freshwater aquifers). These springs and anomalies (also referred to as “mineral springs” and “salt licks”) were recognized first by Native Americans and later by early settlers as good hunting grounds and a source of much-needed salt on the frontier. Settlers converted some of these springs into lucrative commercial ventures as a source of salt. Later many became the focal points of health spas and/or state parks. Others were abandoned and forgotten, or destroyed. In general, Cl concentrations of these springs are typically around 500 mg/L, but are as high as 30,000 mg/L. Cl/Br mass ratios that range from 150 to 700 and were used to identify the source formations of the saline spring water. Overall, the saline springs of the Illinois Basin were found to be coincident with geologic structures within the basin and with basin margins to the south. Two major areas of saline anomalies stand out: 1) the La Salle Anticlinorium, and 2) the DuQuoin-Louden Anticlinal Belt possibly. Discharge along basin margins occur primarily in the southern end of the basin in Kentucky. The geochemical cross sections revealed active recharge to the basin from the north, west and east. Formations of low permeability (e.g., shales) tend to retain hypersaline brines, whereas formations with large permeability such as the St. Peter Sandstone tend to reflect focused recharge of fresh groundwater. A contour map of Cl concentrations of the St. Peter Sandstone was also prepared and revealed recharge areas (as above) and the effects of the LaSalle Anticlinorium on groundwater flow. The contour map suggests that the LaSalle Anticlinorium is providing a zone of greater permeability for groundwater movement from north to south. Structures are also important for downward movement of surface water and groundwater. Vertical pathways in the vicinity of the Ohio River in far southern Illinois where the river intersects the Cottage Grove Fault Zone appears to provide an avenue for recharge to near the base of Ordovician strata and groundwater movement south, into Kentucky. |
Proceedings Title | Illinois Groundwater Association 2015 spring meeting; agenda and abstracts |
Item Type | Journal Article |
---|---|
Author | Minzi Wang |
Author | Chonggang Xu |
Author | Daniel J. J. Johnson |
Author | Craig D. D. Allen |
Author | Martha Anderson |
Author | Guangxing Wang |
Author | Guangping Qie |
Author | Kurt C. C. Solander |
Author | Nate G. G. McDowell |
URL | https://www.webofscience.com/wos/alldb/summary/7d2955ab-7d95-454b-b155-ff6da2cd37ff-66b50f75/date-ascending/1 |
Volume | 5 |
Pages | 693418 |
Publication | Frontiers in Forests and Global Change |
ISSN | 2624893X (ISSN) |
Date | 2022 |
Extra | Place: Lausanne Publisher: Frontiers Media Sa WOS:000886279600001 |
Journal Abbr | Front. For. Glob. Change |
DOI | 10.3389/ffgc.2022.693418 |
Accessed | 2022-12-21 16:43:41 |
Library Catalog | Web of Science Nextgen |
Language | English |
Abstract | Our understanding of broad-scale forest disturbances under climatic extremes remains incomplete. Drought, as a typical extreme event, is a key driver of forest mortality but there have been no reports on continental-scale quantification of its impact on forest mortality or how it compares to other natural or anthropogenic drivers. Thus, our ability to understand and predict broad-scale carbon cycling in response to changing climate and extreme events is limited. In this study, we applied an attribution approach based on different sources of data to quantify the area and potential carbon loss/transfer in continental U.S. (CONUS) from four types of disturbance: (1) anthropogenic (especially timber harvest); (2) fire; (3) drought-associated; and (4) other from 2000 to 2014. Our results showed that anthropogenic disturbances, fire, drought-associated disturbances, and other disturbances accounted for 54.3, 10.7, 12.7, and 22.3% of total canopy area loss, respectively. Anthropogenic disturbance was the most important driver contributing to 58.1% potential carbon loss/transfer in CONUS for 2000-2014. The potential carbon loss/transfer from natural disturbances (fire, drought, and other) for the same study period accounted for approximately 41.9% of the total loss/transfer from all agents, suggesting that natural disturbances also played a very important role in forest carbon turnover. Potential carbon loss/transfer associated with drought accounted for approximately 11.6% of the total loss/transfer in CONUS, which was of similar magnitude to potential carbon loss/transfer from fire (similar to 11.0%). The other natural disturbance accounted for 19.3% of potential carbon loss/transfer. Our results demonstrated the importance of the impacts of various disturbances on forest carbon stocks at the continental scale, and the drought-associated carbon loss/transfer data developed here could be used for evaluating the performance of predictive models of tree mortality under droughts. |
Archive | Scopus |
Item Type | Journal Article |
---|---|
Author | Laura De La Guardia |
Author | Zhenxing Zhang |
Author | Xiaoyan Bai |
URL | https://www.sciencedirect.com/science/article/pii/S0959652622041762 |
Volume | 378 |
Pages | article 134604 |
Publication | Journal of Cleaner Production |
ISSN | 0959-6526 |
Date | 2022 |
Extra | Place: Oxford Publisher: Elsevier Sci Ltd WOS:000874807600002 |
Journal Abbr | J. Clean Prod. |
DOI | 10.1016/j.jclepro.2022.134604 |
Accessed | 2022-10-31 19:51:45 |
Library Catalog | ScienceDirect |
Language | en |
Abstract | Water is crucial for power generation and understanding how much water is needed in the process becomes the key when ensuring water and energy security. Water use intensity has been estimated in the United States based on reported water use and electricity generation data. However, the water use intensity has been often estimated using a single year of records without comprehensive consideration of regional and seasonal variations. This study is thus focused on quantifying the water withdrawal intensity (WWI) and water consumption intensity (WCI), considering the power plant characteristics as well as regional and seasonal variations. The spatiotemporal variations are evaluated using the public records provided by the Energy Information Administration (EIA) of 234 thermoelectric facilities in the contiguous United States (CONUS) for the period 2010 to 2019. The median and range of WWI and WCI for CONUS are estimated for 26 cooling-engine combinations, which is valuable for assessing water security and energy security. The results demonstrate that WCI for power plants using cooling systems with cooling ponds is more variable regionally. The seasonal impact is more significant for recirculating cooling with natural draft systems. The median WCI for CONUS is 1.22 L/kWh. The results also confirm that facility, regional and seasonal factors are important and should be considered when estimating the water use by thermoelectric power plants. |
Item Type | Book Section |
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Author | N. Khodadadi |
Author | S.M. Mirjalili |
Author | W. Zhao |
Author | Z. Zhang |
Author | L. Wang |
Author | S. Mirjalili |
Editor | Anupam Biswas |
Editor | Can B. Kalayci |
Editor | Mirjalili |
URL | https://link.springer.com/chapter/10.1007/978-3-031-09835-2_22 |
Series | Studies in Computational Intelligence |
Volume | 1054 |
Pages | 407-419 |
ISBN | 1860949X (ISSN) |
Date | 2023 |
Extra | DOI: 10.1007/978-3-031-09835-2_22 |
Abstract | This chapter introduces Multi-Objective Artificial Hummingbird Algorithm (MOAHA), a multi-objective variation of the newly established Artificial Hummingbird Algorithm (AHA). The AHA algorithm simulates the specific flight skills and intelligent search strategies of hummingbirds in the wild. Three types of flight skills are used in food search strategies, including axial, oblique, and all-round flights. Multi-objective AHA is tested through 5 real-world engineering case studies. Various performance indicators, such as Spacing (S), Inverted Generational Distance (IGD), and Maximum Spread (MS), are used to compare the MOAHA to the MOPSO, MOWOA, and MOHHO. The suggested algorithm may produce quality Pareto fronts with appropriate precision, uniformity, and very competitive outcomes, according to the qualitative and quantitative. © 2023, The Author(s), under exclusive license to Springer Nature Switzerland AG. |
Book Title | Advances in Swarm Intelligence |
Archive | Scopus |
Item Type | Journal Article |
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Author | Yao Wang |
Author | Zhenxing Zhang |
Author | Emily Elizabeth Allen |
Author | Laura Andrea De La Guardia Hernandez |
Author | Guangping Qie |
Author | Xuguang Wu |
Author | Weiguo Zhao |
URL | https://www.sciencedirect.com/science/article/pii/S0959652622038434?via%3Dihub |
Volume | 376 |
Pages | article 134271 |
Publication | Journal of Cleaner Production |
ISSN | 0959-6526 |
Date | 2022 |
Extra | Place: Oxford Publisher: Elsevier Sci Ltd WOS:000876702700006 |
Journal Abbr | J. Clean Prod. |
DOI | 10.1016/j.jclepro.2022.134271 |
Library Catalog | ScienceDirect |
Language | English |
Abstract | Climate variability and change impact both water demand and water availability for power generation because of the interconnected relationship between water and thermoelectric power generation. To assess the impacts of climate change on water demand by thermoelectric power plants, this study developed a framework that integrates the characteristics of power plants and the results of the Integrated Environmental Control Model (IECM) and the General Circulation Model (GCM) to simulate the water demand. This study contributed a novel tool to assess climate change impacts on water demand based on local climate conditions. This framework was applied to thermoelectric power plants in Illinois to explore the water demand at daily, monthly, and annual temporal resolutions. The results demonstrated that water use is more sensitive at shorter timescales. Thus, it is important to examine the water-energy nexus at a finer temporal resolution. Results also indicated that water consumption is more sensitive to climate change than withdrawal; power plants with a wet cooling tower are more sensitive than ones with a once-through cooling system; and natural gas-fired power plants are more sensitive than coal-fired plants. The case study demonstrated the novel framework is capable to assess climate change impact on water demand of thermoelectric power plants at varying temporal resolutions and the framework is easily applicable to other parts of the world. © 2022 |
Archive | Scopus |
Item Type | Journal Article |
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Author | Linduo Zhao |
Author | Hongbo Shao |
Author | Li Zhang |
Author | Samuel V. Panno |
Author | Walton R. Kelly |
Author | Tzu-Yu Lin |
Author | Wen-Tso Liu |
Author | Theodore M. Flynn |
Author | Peter Berger |
URL | https://sfamjournals.onlinelibrary.wiley.com/doi/10.1111/1462-2920.16241 |
Volume | 24 |
Issue | 12 |
Pages | 6112-6127 |
Publication | Environmental Microbiology |
ISSN | 1462-2920 |
Date | 2022 |
Extra | Place: Hoboken Publisher: Wiley WOS:000879613900001 |
DOI | 10.1111/1462-2920.16241 |
Accessed | 2022-10-27 18:21:29 |
Library Catalog | Web of Science Nextgen |
Language | English |
Abstract | Saline springs within the Illinois Basin result from the discharge of deep-seated evaporated seawater (brine) and likely contain diverse and complex microbial communities that are poorly understood. In this study, seven saline/mineral springs with different geochemical characteristics and salinity origins were investigated using geochemical and molecular microbiological analyses to reveal the composition of microbial communities inhabiting springs and their key controlling factors. The 16S rRNA sequencing results demonstrated that each spring harbors a unique microbial community influenced by its geochemical properties and subsurface conditions. The microbial communities in springs that originated from Cambrian/Ordovician strata, which are deep confined units that have limited recharge from overlying formations, share a greater similarity in community composition and have a higher species richness and more overlapped taxa than those that originated from shallower Pennsylvanian strata, which are subject to extensive regional surface and groundwater recharge. The microbial distribution along the spring flow paths at the surface indicates that 59.8-94.2% of total sequences in sedimentary samples originated from spring water, highlighting the role of springs in influencing microbiota in the immediate terrestrial environment. The results indicate that the springs introduce microbiota with a high biodiversity into surface terrestrial or aquatic ecosystems, potentially affecting microbial reservoirs in downstream ecosystems. This article is protected by copyright. All rights reserved. |
Archive | Scopus |
Item Type | Journal Article |
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Author | Kevin Grady |
Author | Momcilo Markus |
Author | Shu Wu |
Author | Fuyao Wang |
Author | Seid Koric |
URL | https://onlinelibrary.wiley.com/doi/10.1111/1752-1688.13065 |
Pages | article in press |
Publication | Journal of the American Water Resources Association |
ISSN | 1093-474X |
Extra | Place: Hoboken Publisher: Wiley WOS:000867586800001 |
DOI | 10.1111/1752-1688.13065 |
Accessed | 2022-10-27 18:20:05 |
Library Catalog | Web of Science Nextgen |
Language | English |
Abstract | In hydrology, projected climate change impact assessment studies typically rely on ensembles of downscaled climate model outputs. Due to large modeling uncertainties, the ensembles are often averaged to provide a basis for studying the effects of climate change. A key issue when analyzing averages of a climate model ensemble is whether to weight all models in the ensemble equally, often referred to as the equal-weights or unweighted approach, or to use a weighted approach, where, in general, each model would have a different weight. Many studies have advocated for the latter, based on the assumption that models that are better at simulating the past, that is, the models with higher hindcast accuracy, will give more accurate forecasts for the future and thus should receive higher weights. To examine this issue, observed and modeled daily precipitation frequency (PF) estimates for three urban areas in the United States, namely Boston, Massachusetts; Houston, Texas; and Chicago, Illinois, were analyzed. The comparison used the raw output of 24 Coupled Model Intercomparison Project Phase 5 (CMIP5) models. The PFs from these models were compared with the observed PFs for a specific historical training period to determine model weights for each area. The unweighted and weighted averaged model PFs from a more recent testing period were then compared with their corresponding observed PFs to determine if weights improved the estimates. These comparisons indeed showed that the weighted averages were closer to the observed values than the unweighted averages in nearly all cases. The study also demonstrated how weights can help reduce model spread in future climate projections by comparing the unweighted and weighted ensemble standard deviations in these projections. In all studied scenarios, the weights actually reduced the standard deviations compared to the equal-weights approach. Finally, an analysis of the results' sensitivity to the areal reduction factor used to allow comparisons between point station measurements and grid-box averages is provided. |
Item Type | Journal Article |
---|---|
Author | Weiguo Zhao |
Author | Hongfei Zhang |
Author | Zhenxing Zhang |
Author | Kaidi Zhang |
Author | Liying Wang |
URL | https://www.mdpi.com/2073-4441/14/19/3035 |
Volume | 14 |
Issue | 19 |
Pages | 3035 |
Publication | Water |
ISSN | 20734441 (ISSN) |
Date | 2022 |
Extra | Place: Basel Publisher: Mdpi WOS:00086733380000 ASFA: Aquatic Sciences and Fisheries Abstracts |
Journal Abbr | Water |
DOI | 10.3390/w14193035 |
Accessed | 2022-10-27 18:20:04 |
Library Catalog | Web of Science Nextgen |
Language | English |
Abstract | Supply-demand-based optimization (SDO) is a swarm-based optimizer. However, it suffers from several drawbacks, such as lack of solution diversity and low convergence accuracy and search efficiency. To overcome them, an effective supply-demand-based optimization (ESDO) is proposed in this study. First, an enhanced fitness-distance balance (EFDB) and the Levy flight are introduced into the original version to avoid premature convergence and improve solution diversity; second, a mutation mechanism is integrated into the algorithm to improve search efficiency; finally, an adaptive local search strategy (ALS) is incorporated into the algorithm to enhance the convergence accuracy. The effect of the proposed method is verified based on the comparison of ESDO with several well-regarded algorithms using 23 benchmark functions. In addition, the ESDO algorithm is applied to tune the parameters of the fractional-order proportional integral derivative (FOPID) controller of the water turbine governor system. The comparative results reveal that ESDO is competitive and superior for solving real-world problems. |
Archive | Scopus |
Item Type | Conference Paper |
---|---|
Author | Laura Keefer |
Author | Momcilo Markus |
Author | Elias Getahun |
URL | http://hdl.handle.net/2142/99147 |
Rights | “This document is a product of the Prairie Research Institute, and has been selected and made available by the Prairie Research Instituteand the University Library, University of Illinois at Urbana-Champaign. It is intended for research and educational use, and proper attribution is requested.” |
Publisher | Prairie Research Institute |
Date | 2017-06-14 |
Accessed | 2018-04-12 19:13:30 |
Library Catalog | www.ideals.illinois.edu |
Conference Name | Building Resiliency in the Face of Risk workshop, Springfield, IL, June 14, 2017 |
Language | en |
Abstract | Presentation on ISWS watershed data collection with examples from the Illinois River & Kaskaskia River Basins, monitoring for long-term sediment trends, and application of data for better modeling. Covers the Watershed Management Tool (WMT) and statistical modeling for the development of short-and long-term nutrient predictions. |
Proceedings Title | Building Resiliency in the Face of Risk |
Item Type | Conference Paper |
---|---|
Author | Jim Angel |
URL | http://hdl.handle.net/2142/99568 |
Rights | “This document is a product of the Prairie Research Institute, and has been selected and made available by the Prairie Research Instituteand the University Library, University of Illinois at Urbana-Champaign. It is intended for research and educational use, and proper attribution is requested.” |
Publisher | Prairie Research Institute |
Date | 2017-06-14 |
Accessed | 2018-04-12 18:50:56 |
Library Catalog | www.ideals.illinois.edu |
Conference Name | Building Resiliency in the Face of Risk workshop, Springfield, IL, June 14, 2017 |
Language | en |
Abstract | Contrasts natural climate change during the earth's history with recent human-driven change. Discusses predictive models for changes in temperature and precipitation, and the implications for Illinois. Concludes Illinois is getting warmer and wetter, with potential for more flooding, heat waves with associated losses in health and wealth. |
Proceedings Title | Building Resiliency in the Face of Risk |
Short Title | Climate Change in Illinois |
Item Type | Conference Paper |
---|---|
Author | Olivia Kellner |
URL | http://hdl.handle.net/2142/99571 |
Rights | This document is a product of the Prairie Research Institute, and has been selected and made available by the Prairie Research Instituteand the University Library, University of Illinois at Urbana-Champaign. It is intended for research and educational use, and proper attribution is requested. |
Publisher | Prairie Research Institute |
Date | 2017-06-14 |
Accessed | 2018-04-12 18:44:59 |
Library Catalog | www.ideals.illinois.edu |
Conference Name | Building Resiliency in the Face of Risk workshop, Springfield, IL, June 14, 2017 |
Language | en |
Abstract | Presentation covering observed changes in temperature and precipitation across Illinois, and the impact of a warmer and wetter Illinois climate on human health, including heat risk, air quality concerns, vactor-borne disease risk, and water-borne disease risk. Shows data application and analysis using resources from the Prairie Research Institute. |
Proceedings Title | Building Resiliency in the Face of Risk |
Item Type | Conference Paper |
---|---|
Author | Walt Kelly |
Author | Jason Zhang |
URL | http://hdl.handle.net/2142/99572 |
Rights | This document is a product of the Prairie Research Institute, and has been selected and made available by the Prairie Research Instituteand the University Library, University of Illinois at Urbana-Champaign. It is intended for research and educational use, and proper attribution is requested. |
Publisher | Prairie Research Institute |
Date | 2017 |
Accessed | 2018-04-12 18:42:32 |
Library Catalog | www.ideals.illinois.edu |
Conference Name | Building Resiliency in the Face of Risk, Springfield, IL, June 14, 2017 |
Language | en |
Abstract | Presentation covering status of regional water supply planning work in the State of Illinois. |
Proceedings Title | Building Resiliency in the Face of Risk |