scholarly journals Stream Stage Monitoring with Community Science-Contributed Stage Data

Hydrology ◽  
2022 ◽  
Vol 9 (1) ◽  
pp. 11
Author(s):  
Ingrid Luffman ◽  
Daniel Connors

Volunteered Geographic Information, data contributed by community scientists, is an increasingly popular tool to collect scientific data, involve the community in scientific research, and provide information and education about a prominent issue. Johnson City, Tennnessee, USA has a long history of downtown flooding, and recent redevelopment of two land parcels has created new city parks that mitigate flooding through floodwater storage, additional channel capacity, and reduced impervious surfaces. At Founders Park, a project to collect stage data using text messages from community scientists has collected 1479 stage measurements from 597 participants from May 2017 through July 2021. Text messages were parsed to extract the stage and merged with local precipitation data to assess the stream’s response to precipitation. Of 1479 observations, 96.7% were correctly parsed. Only 3% of observations were false positives (parser extracted incorrect stage value) or false negatives (parser unable to extract correct value but usable data were reported). Less than 2% of observations were received between 11 p.m. and 7 a.m., creating an overnight data gap, and fewer than 7% of observations were made during or immediately following precipitation. Regression models for stage using antecedent precipitation explained 21.6% of the variability in stream stage. Increased participation and development of an automated system to record stage data at regular intervals will provide data to validate community observations and develop more robust rainfall–runoff models.

Atmosphere ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 73
Author(s):  
Mae Sexauer Gustin ◽  
Sarrah M. Dunham-Cheatham ◽  
Jiaoyan Huang ◽  
Steve Lindberg ◽  
Seth N. Lyman

This review focuses on providing the history of measurement efforts to quantify and characterize the compounds of reactive mercury (RM), and the current status of measurement methods and knowledge. RM collectively represents gaseous oxidized mercury (GOM) and that bound to particles. The presence of RM was first recognized through measurement of coal-fired power plant emissions. Once discovered, researchers focused on developing methods for measuring RM in ambient air. First, tubular KCl-coated denuders were used for stack gas measurements, followed by mist chambers and annular denuders for ambient air measurements. For ~15 years, thermal desorption of an annular KCl denuder in the Tekran® speciation system was thought to be the gold standard for ambient GOM measurements. Research over the past ~10 years has shown that the KCl denuder does not collect GOM compounds with equal efficiency, and there are interferences with collection. Using a membrane-based system and an automated system—the Detector for Oxidized mercury System (DOHGS)—concentrations measured with the KCl denuder in the Tekran speciation system underestimate GOM concentrations by 1.3 to 13 times. Using nylon membranes it has been demonstrated that GOM/RM chemistry varies across space and time, and that this depends on the oxidant chemistry of the air. Future work should focus on development of better surfaces for collecting GOM/RM compounds, analytical methods to characterize GOM/RM chemistry, and high-resolution, calibrated measurement systems.


2013 ◽  
Vol 10 (83) ◽  
pp. 20130048 ◽  
Author(s):  
Ben D. Fulcher ◽  
Max A. Little ◽  
Nick S. Jones

The process of collecting and organizing sets of observations represents a common theme throughout the history of science. However, despite the ubiquity of scientists measuring, recording and analysing the dynamics of different processes, an extensive organization of scientific time-series data and analysis methods has never been performed. Addressing this, annotated collections of over 35 000 real-world and model-generated time series, and over 9000 time-series analysis algorithms are analysed in this work. We introduce reduced representations of both time series, in terms of their properties measured by diverse scientific methods, and of time-series analysis methods, in terms of their behaviour on empirical time series, and use them to organize these interdisciplinary resources. This new approach to comparing across diverse scientific data and methods allows us to organize time-series datasets automatically according to their properties, retrieve alternatives to particular analysis methods developed in other scientific disciplines and automate the selection of useful methods for time-series classification and regression tasks. The broad scientific utility of these tools is demonstrated on datasets of electroencephalograms, self-affine time series, heartbeat intervals, speech signals and others, in each case contributing novel analysis techniques to the existing literature. Highly comparative techniques that compare across an interdisciplinary literature can thus be used to guide more focused research in time-series analysis for applications across the scientific disciplines.


2019 ◽  
Vol 1 ◽  
pp. 1-1
Author(s):  
W. Andrew Marcus ◽  
James E. Meacham ◽  
Justin T. Menke ◽  
Aleathea Y. Steingisser ◽  
Ann E. Rodman

<p><strong>Abstract.</strong> The Second Edition of the Atlas of Yellowstone will celebrate the 150-year history of the world’s first national park – and reflect on the future of Yellowstone and its evolving place in the world. Like the first Atlas of Yellowstone published in 2012, the Second Edition will provide a comprehensive view of the human and natural setting of Yellowstone National Park. Also like the First Edition, the new edition will portray variations over space and time, explore human-nature interactions throughout the region, document connections of Yellowstone to the rest of the world, and &amp;ndash; ultimately &amp;ndash; guide the reader to a deeper appreciation of Yellowstone.</p><p>Beyond that, the new edition will provide much expanded coverage of the park’s history. Readers will better understand the many different ways in which the creation of Yellowstone National Park has preserved and altered the landscapes and ecology of Yellowstone and conservation thought and practice, both locally and around the world.</p><p>The new atlas will also reflect advances in scientific data collection, knowledge, and insight gained since publication of the first edition. New topic pages will address key management issues ranging from increased visitor impact to wildlife disease to light pollution. In addition, many of the 850 existing graphics will be updated, reimagined, or replaced by new graphics that capture the remarkable wealth of data that has become available since the First Edition. Whether it be tracking of individual wolves, ecosystem imagery from space, or detailed visitor surveys &amp;ndash; new data provide insights that could not be graphically displayed before.</p><p>The Second Edition celebrates 150 years of America’s best idea and what that has meant to the world. The significance of Yellowstone National Park to conservation, scholarship, and the human experience is enormous, and deserves a volume that captures that importance.</p>


2020 ◽  
Vol 101 (6) ◽  
pp. 937-943
Author(s):  
V I Borodulin ◽  
M A Podolskaya ◽  
V Ju Al'bickiy ◽  
A V Topolyanskiy

The work aimed to introduce new scientific data and use well-known data about the professor, doctor of medicine, a well-known therapist, director of the Kazan Clinical Institute (Kazan Institute for Advanced Medical Studies) in 19201930 Roman Albertovich Luria. The multifaceted activity of R.A. Luria as a health care organizer, teacher, scientist, practitioner, author of unique monographs on internal medicine is shown. In 19201941, R.A. Luria was a member of the Soviet scientific and medical elite of healthcare organizers and therapists. In the history of domestic medicine R.A. Luria is the organizer of the Soviet system of postgraduate education of doctors, a prominent scientist who made a significant contribution to the development of the national clinic of internal diseases in the first half of the twentieth century, and the pride of Kazan medicine, who remained in the memory of Kazan citizens as a doctor capable of creating a miracle.


2015 ◽  
Vol 21 (1/2) ◽  
Author(s):  
Jan Brase ◽  
Michael Lautenschlager ◽  
Irina Sens
Keyword(s):  

2011 ◽  
Vol 35 (1) ◽  
pp. 21-27 ◽  
Author(s):  
Tomas Grunskis

While analysing creative experiments in architecture, one finds a number of different phenomena and examples, not so easy to discuss in a more or less systematic way. These phenomena and results, in one or another way related to experimental architecture, can hardly be defined by a single category and, as shown by the history of architecture, have become one of its driving forces contributing to the development of architecture in the course of time. The issue of the concepts of architectural experimentation on the whole is important and urgent in two aspects. First of all, such concepts are used in attempting to formulate basic architectural and cultural declarations, consequentially applied in forming and proclaiming different political creeds (usual practice of international architectural biennales and expo exhibitions). Secondly, their cultural value is of key importance too, as the ideas and thoughts expressed through the experimental creation often convey social aspects and states, also the idea, how architecture is understood during a specific period of time and the role given to it by society. Finally, as architecture is a language used by society to convey its socio-cultural status and values, the experimental architectural creation can be significant, although often ignored, in architectural practice. The most outstanding examples of architectural experiments confirm that architecture as artistic creation has long ago gained certain features of a cultural phenomenon, which eventually has become closely connected to society. Thus the area of culture and forms of its expression has becoming more and more relevant and significant to architectural experimentation. Although artistic and scientific experiments have certain similarities within contemporary discourse of architectural practices, they still differ a lot in the aspects of their backgrounds, processes and even results. But still, the interdisciplinary aspect, common to contemporary artistic experimentation, draws art and science closer together. Fairly often, peculiar new forms of art borrow scientific data or ideas interpreting, expressing and using them effectively to make pure art. The concept of architectural experimentation still does not exist as an integral concept. Only a few general features and attributes can be named as helping to define the architectural phenomenon as an experimental one. These are: (a) the idealistic trend and (b) very active element of motivation. It is also noteworthy that looking retrospectively, within different epochs the architectural experimentation had different relationship with other arts. The discussed in the article experimental practices of architecture in the 1950-ies – 1970-ies accumulated and effectively operated the languages of other visual – and not only – arts. Although, at the same time it should be admitted that they did not have the same close relationship to traditional, fundamental arts, such as sculpture and painting. So does the contemporary, the 21st century, architectural experimentation – it no longer has closer connection to traditional arts. Although it has to be admitted that the most recent, media-related arts influence experimental architecture on the levels of its forms as well as concepts. In general, the architectural creation at the beginning of the 21st century (both building architecture and urban planning) is getting more and more social. The experiment in such creation is less artistic or valuable as pure art in the traditional sense. Fewer experiments are made on the form only, but rather on the process itself and then – the form. Although the most innovative architectural images being developed and declared are getting more abstract and universal, they are easier to implement than before (due to the most advanced technologies). So, it is not so simple to draw a dividing line between purely idealistic and realistic experimental architecture, because what was just a vision not so long ago, today can be easily realized. Does it mean that experiments have become more social and less creative? Probably, not. Most likely, it’s because creativity has become transformable and gained new ways of expression. Santrauka Straipsnyje analizuojamos esminės kūrybinio eksperimento sampratos architektūroje. Apžvelgiami pagrindiniai mokslinio ir meninio eksperimento principai, konceptai juos charakterizuojant bei lyginant tarpinternatvyje, detalizuojant tiek esminius skirtumus, tiek ir logines sąsajas tarp vienų ir kitų. Taip pat tekste plačiai analizuojamas kūrybinio eksperimento reiškinys architektūroje, aptariant ir mokslinės, ir meninės sričių įtakas jam, jo specifikas ir ypatumus.


1979 ◽  
Vol 1 (5-6) ◽  
pp. 6-27 ◽  
Author(s):  
William Partridge

A development project "is alive, it changes its form and develops, or it declines" (Opler, Morris E. Social Aspects of Technical Assistance. p. 70. Amsterdam: UNESCO, 1954). Conditions in the natural history of a development project are different in its conception phase as compared to its construction phase, or two years after it is in operation, or a generation later—project objectives evolve, personnel come and go, interorganizational relationships shift, program designs are modified, and the uses to which social scientific data and analysis are put change over the life of the project. The evaluation of the socioeconomic and cultural impacts of a project undertaken at only one stage is, perforce, unsystematic and only rarely comprehensively analytical. When anthropologists enter a development project, it is often as technicians. They are fieldworkers on sojourns from academe, hired to carry out studies and write reports and leave the decisions to others. Our wholistic perspective does not assist us in achieving systematic and comprehensive analyses of impacts when we are limited in this way.


2021 ◽  
Author(s):  
Denis Flynn ◽  
Warren Roche

&lt;div&gt;The soil can be modelled as a porous medium in which the three phases of matter coexist and produce the emergent phenomenon of hysteresis.&lt;/div&gt;&lt;div&gt;Rate-independent hysteresis is a nonlinear phenomenon where the output depends not only on the current input but also the previous history of inputs to the system. In multiphase porous media such as soils, the hysteresis is in the relationship between the soil-moisture content, and the capillary pressure.&lt;/div&gt;&lt;div&gt;In this work, we develop a simplified hysteretic rainfall-runoff model consisting of the following subsystems that capture much of the physics of flow through a slab of soil:&lt;/div&gt;&lt;div&gt;1) A slab of soil where rainfall enters and if enough water is present in the soil, it will subsequently drain into the groundwater reservoir. This part of the model is represent by ODE with a Preisach operator.&lt;/div&gt;&lt;div&gt;2) A runoff component: If the rainfall exceeds the maximum infiltration rate of the soil, the excess will become surface runoff. This part of the model is represented by a series of two hysteretic reservoirs instead of the two linear reservoirs in the literature.&lt;/div&gt;&lt;div&gt;3) A ground water storage and outflow subsystem component: this is also modelled by a hysteretic reservoir. Finally, the outputs from the groundwater output and the overland flow are combined to give the total runoff. We will examine this model and compare it with non-hysteretic case both qualitatively and quantitively.&lt;/div&gt;


2012 ◽  
Vol 2012 ◽  
pp. 1-14 ◽  
Author(s):  
Dominique-Marie Votion

Atypical myopathy (AM) is a frequently fatal seasonal pasture myopathy that emerges in Europe. Outbreaks are of an acute and unexpected nature and practitioners should be prepared to handle these critically ill patients. This review retraces the history of AM and describes results of epidemiological investigations that were conducted to raise hypotheses concerning the etiology of this devastating disease as well as to be able to suggest potential preventive measures. Also, clinical studies have contributed to a better definition and recognition of the syndrome, whereas elucidation of the pathological process, identified as a multiple acyl-CoA dehydrogenase deficiency (MADD), was a great step forward improving medical management of AM and guiding the search for the etiological agent towards toxins that reproduce the identified defect. Treatment plans can be extrapolated from the described clinical signs and metabolic problems, but they remain limited to supportive care until the causative agent has been identified with certainty. Since treatment is still unsuccessful in the majority of cases, the main emphasis is currently still on prevention. This paper aims at being a practical support for equine clinicians dealing with AM and is based on discussion and comparison of the currently available scientific data.


10.5597/00242 ◽  
2019 ◽  
Vol 13 (1-2) ◽  
pp. 2-8
Author(s):  
Mariano Sironi ◽  
Lucía Alzugaray ◽  
Agustina Saez ◽  
Florencia Ornela Vilches ◽  
Alejandro Fernández Ajó ◽  
...  

Whale-watching vessels can be used as platforms to collect scientific data on the natural history of cetaceans. Vessels with underwater viewing decks are exceptional and offer a unique view of the whales. We assessed the underwater viewing platform of the semi-submersible vessel Yellow Submarine that operates off Puerto Pirámides, Península Valdés, Argentina as a platform of opportunity for southern right whale (Eubalaena australis) research. The variables considered during observations included, among others, the age class and sex of the animals observed, behavioral patterns, opportunities for individual photo-identification, distance and duration of the underwater observations and how weather conditions affected data collection. The Yellow Submarine offers a unique platform to make underwater observations of southern right whales in this calving ground. The main limitations are the relatively short duration of the observations and reduced visibility in spring.


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