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Articles 1 - 9 of 9
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Hydroviewer: A Web Application To Localize Global Hydrologic Forecasts, Kyler R. Ashby, Riley Chad Hales, Jim Nelson, Daniel P. Ames, Gustavious P. Williams
Hydroviewer: A Web Application To Localize Global Hydrologic Forecasts, Kyler R. Ashby, Riley Chad Hales, Jim Nelson, Daniel P. Ames, Gustavious P. Williams
Open Water Journal
Earth observation data are increasingly ubiquitous, easily accessible, often freely available, and more usable due to improvements in software, data standards, network infrastructure, and national policies. As a result, greater opportunities arise for using these data in emerging fields such as decision support for local and regional environmental and water resources management. In parts of the world where in situ data are less readily available, global Earth observation data, used in decision support tools, can be a boon to government and other water management agencies. The Group on Earth Observations Global Water Sustainability Initiative (GEOGloWS) works to bring global water …
Connecting Space To Village By Predicting Algae Contamination In Lake Atitlán, Guatemala, Alma Meyer, Jorge Luis Sánchez Lozano, Jim Nelson, Africa Flores
Connecting Space To Village By Predicting Algae Contamination In Lake Atitlán, Guatemala, Alma Meyer, Jorge Luis Sánchez Lozano, Jim Nelson, Africa Flores
Open Water Journal
Environmental authorities in Guatemala have become increasingly concerned in the last decade due to the deteriorating condition of the Lake Atitlán watershed. The lake has experienced algae blooms that first appeared in 2009 and now occur almost yearly. The National Aeronautics and Space Administration’s (NASA) SERVIR Science Coordination Team and scientists at the University of Alabama in Huntsville (UAH) have been working on an algorithm that predicts algae blooms using satellite data, artificial intelligence, and machine learning. However, to make the algorithm work consistently, they were lacking data for one important variable: daily volume of runoff into the lake. Using …
Ecological Analyses Of Macroinvertebrate And Fish Species In Six Streams On A Louisiana Military Base From 2001 To 2019, Danielle Joerger, Marsha Williams, Lance Williams
Ecological Analyses Of Macroinvertebrate And Fish Species In Six Streams On A Louisiana Military Base From 2001 To 2019, Danielle Joerger, Marsha Williams, Lance Williams
Open Water Journal
An in-depth ecological analysis of how and why the aquatic community changes over time was conducted for 6 streams on the Fort Polk military base in Louisiana using data collected from 2001 to 2019. Fort Polk is a unique location as nineteen first-order streams are located on the premises belonging to three separate drainages. The primary goal was to determine whether temporal or between-drainage variation has a larger effect on community structure. To accomplish this the effects of disturbance on fish and macroinvertebrate assemblages was determined temporally and between drainages. Several hypotheses were drawn from this: 1) temporally, assemblages exhibit …
Drought In The West: Embedded Water Demand Stationarity Compromises System Vulnerability Analysis, Ryan C. Johnson, Margaret Wolf, Logan Jamison, Steven Burian, Carlos A. Oroza, Paul D. Brooks, Courtenay Strong, Jesse Stewart, Tracie Kirkham
Drought In The West: Embedded Water Demand Stationarity Compromises System Vulnerability Analysis, Ryan C. Johnson, Margaret Wolf, Logan Jamison, Steven Burian, Carlos A. Oroza, Paul D. Brooks, Courtenay Strong, Jesse Stewart, Tracie Kirkham
Open Water Journal
Hydrological drought is challenging managers of western U.S. snowpack-dependent urban water systems. Snowpack, reservoir storage, streamflow dynamics, and demand are routinely assessed to guide water system management and operations, assuming per-capita demand stationarity. Using the Salt Lake City Department of Public Utilities and two drought scenarios, we investigate water system vulnerability differences between unchanging industry per-capita forecasting methods and dynamic demands driven by hydro-climate-demand relationships. The introduction of dynamic demands estimates a 42% reduction in system vulnerability during supply limiting conditions than the industry methods. These modeled water use behaviors also suggest a reduction in the peak timing and volume …
Facilitating Effective Utilization Of Water Science Research Among Emergency Flood Responders, Whitney E. Henson, Richard Garth, Christopher Franklin
Facilitating Effective Utilization Of Water Science Research Among Emergency Flood Responders, Whitney E. Henson, Richard Garth, Christopher Franklin
Open Water Journal
Emergency management practitioners, at all hierarchical levels, consider a communication gap to exist between the critical applied knowledge and understanding among emergency first responders (i.e., in the "social cloud" domain) of the scientific data and derived information available from water science research (i.e., in the "science cloud" domain). We posit that this communication gap and information transparency (i.e., synthesis) does not represent an engineering or hydrologic science problem but rather a translation and interpretation problem. The keys to understanding and resolving this chasm are efficiently and effectively sorting, organizing and synthesizing scientific information into useable, "personalized" packets for first responders …
Google Earth Engine Tools For Long-Term Spatiotemporal Monitoring Of Chlorophyll-A Concentrations, Anna Cardall, Kaylee Brook Tanner, Gustavious Paul Williams
Google Earth Engine Tools For Long-Term Spatiotemporal Monitoring Of Chlorophyll-A Concentrations, Anna Cardall, Kaylee Brook Tanner, Gustavious Paul Williams
Open Water Journal
We present a set of Google Earth Engine (GEE) tools to process long-term satellite imagery to analyze the time history of algal concentrations in a lake or reservoir. We demonstrate these tools with a case study on Utah Lake, Utah, USA. Our tools collect and process Landsat surface reflectance images from three different Landsat missions: Landsat 5, Landsat 7, and Landsat 8. These satellites represent data from 1984 until the present at 16-day intervals: over 1,000 images, though not all images are usable due to weather, ice, and other issues. We present the GEE commands or tools to mask these …
Design And Development Of A Tethys Framework Web Application To Elucidate The Hydroshare.Org Application Programmer Interface, Abhishek Amalaraj, Daniel P. Ames
Design And Development Of A Tethys Framework Web Application To Elucidate The Hydroshare.Org Application Programmer Interface, Abhishek Amalaraj, Daniel P. Ames
Open Water Journal
In recent years, data and file sharing have advanced significantly, opening doors for engineers from all over the world to stay connected with each other and share data, models, scripts and other information required for scientific and engineering purposes. HydroShare (www.hydroshare.org) was developed by a consortium of universities sponsored by the National Science Foundation (NSF) as a means for improving data and model sharing. Originally released in 2014, and continually updated since that time, HydroShare has proven to be a valuable resource for a growing number of active users in the field of water resources and environmental research. …
Design And Development Of A Web Mapping Prototype For Participatory Water Quality Mapping, Austin Adkison, John D. Morgan, Dallas Snider, Matthew Schwartz
Design And Development Of A Web Mapping Prototype For Participatory Water Quality Mapping, Austin Adkison, John D. Morgan, Dallas Snider, Matthew Schwartz
Open Water Journal
Citizen science is becoming more and more prominent in everyday life. With this growth in the participation and contribution of scientific research comes an ever-increasing amount of data and findings. The collection of water quality data is just one example out of a plethora that exists. While these types of data are being collected, there are very few open options that allow users to engage with said data. Further, with the continuous evolution of technology and the general public coming to understand how earth feature representations in a spatial format, we see the emergence of web mapping and ways to …
Exploring The Physical Attributes Of 21st Century Large Dams: A Descriptive Study From Ecological And Sustainability Perspectives, Atal Ahmadzai
Exploring The Physical Attributes Of 21st Century Large Dams: A Descriptive Study From Ecological And Sustainability Perspectives, Atal Ahmadzai
Open Water Journal
In response to growing energy needs and emerging water insecurity, countries around the world have resorted to building dams of unprecedented size. This dynamism emerged following a global consensus at the end of the 20th century that vowed to transform the large dam industry into one that was sustainable and ecologically sensitive. The consensus evolved due to years of popular anti-dam activism on a global scale and the emergence of new knowledge on various aspects of large dams. Although the number of large dams built has sustained its descending pattern that has initiated in the late 1970s, hundreds of dams …