Developing best practice for infilling daily river flow data

Complete river flow time series are indispensable to the sustainable management of water resources and even very short gaps can severely compromise data utility. Suitably-flagged flow estimates, derived via judicious infilling, are thus highly beneficial. The UK National River Flow Archive provides stewardship of and access to daily river flow records from over 1500 gauging stations and, whilst the majority are sensibly complete, historical validation reveals a significant quantity of gaps. A full assessment of the suitability of existing techniques for infilling such gaps is lacking. This paper therefore presents an appraisal of various simple infilling techniques, including regression, scaling and equipercentile analysis, according to their ability to generate daily flow estimates for 25 representative UK gauging stations. All of the techniques rely upon data transfer from donor stations and results reveal that the equipercentile and multiple regression approaches perform best. Case studies offer further insight and an example of infilling is presented, along with areas of future study. The results demonstrate the potential for developing generic infilling methodologies to ensure a consistent and auditable approach towards infilling, which could find wider application both within the UK and internationally

How spatial planning can enable pathways to the implementation of sustainable urban drainage systems in the city bowl, Cape Town

The dramatic global trend of population growth has led to a rapid urbanisation, resulting in unprecedented land cover change. The incarnation of accompanying developed has typified impermeable surfaces. These surfaces have disconnected the stormwater component of the natural hydrological cycle, disregarding it as a nuisance and designing it to be rapidly removed from urban areas. Utilising Sustainable Urban Drainage Systems (SUDS) offers opportunities in urban areas to recycle the water and challenge the perception that stormwater is a nuisance and of no value. The current context of drought experienced by Cape Town has highlighted the need for less reliance on surface water resources; implementing SUDS could be a way of reconnecting the hydrological urban water cycle. It could also help to repair the human disconnect from nature that is prevalent in urban areas. The research question explored the role of spatial planning in enabling the implementation of SUDS in the City Bowl, Cape Town. While conceptual and technical frameworks have been developed for SUDS in South Africa, at present there is no spatial guide as to how these interventions could be realised in a specific context and area. This research utilise s the tools of spatial planning to re-imagine the City Bowl in relation to water. The case study methods used, enabling a detailed understanding of the site. This was complemented by interviews with various planning professionals in order to understand the current role spatial planning plays in terms of implementing SUDS. The research suggest is that whilst SUDS has many constraints, the opportunities that they provide for improving water quality and quantity, and surrounding amenities, suggests that this is one which has to be embraced if the City Bowl is going to respond innovatively and sustainably to the drought. It also highlights the need to improve coordination across different spheres and departments of governance, and emphasises the need to value local community knowledge. A prevalent silo approach to complex problems is no longer acceptable. The implications of the research are that implementing SUDS in the City Bowl requires planners to embrace a water literacy approach to spatial plans, and in doing so, return the focus to wate

Sustainability, transport and design: reviewing the prospects for safely encouraging eco-driving

Private vehicle use contributes a disproportionately large amount to the degradation of the environment we inhabit. Technological advancement is of course critical to the mitigation of climate change, however alone it will not suffice; we must also see behavioural change. This paper will argue for the application of Ergonomics to the design of private vehicles, particularly low-carbon vehicles (e.g. hybrid and electric), to encourage this behavioural change. A brief review of literature is offered concerning the effect of the design of a technological object on behaviour, the inter-related nature of goals and feedback in guiding performance, the effect on fuel economy of different driving styles, and the various challenges brought by hybrid and electric vehicles, including range anxiety, workload and distraction, complexity, and novelty. This is followed by a discussion on the potential applicability of a particular design framework, namely Ecological Interface Design, to the design of in-vehicle interfaces that encourage energy-conserving driving behaviours whilst minimising distraction and workload, thus ensuring safety

When State Systems Fail: A Qualitative Analysis of Child Protection Services

The purpose of this research is to conduct a qualitative study examining cases of abuse in the child welfare system and offer policy recommendations to limit cases of abuse. After chronicling several cases of child abuse within the State of Mississippi\u27s foster care system the following recommendations are offered. First, increased awareness and public knowledge on this issue and its causes is vital for the continuation of improvements in both the state and federal foster care systems. Second, proper funding is key to maintaining a functional state child welfare and protection department. This paper concludes with a recommendation of policy reform as well as the proposition of two new revenue sources that could benefit the increased funding of the MDCPS and the State of Mississippi. This study is significant in that the findings draw attention to the policy changes needed to reform child welfare and protection agencies in the United States and specifically in the State of Mississippi

Nutrition and Food Safety Literacy Status Among Food Pantry Supervisors and Volunteers in South Carolina

According to the USDA, food insecurity or the inadequate access to a sufficient amount of nutritious food, affects over 12.3 percent of the U.S. population including more than 680,000 South Carolinians (USDA, 2017a). These individuals find some relief from food banks and food pantries that provide meals, groceries and services to individuals experiencing hunger, poverty, food insecurity and inadequate nutritional intake. Because food banks and pantries operate on limited budgets, they rely heavily on volunteers to perform numerous activities such as handling, sorting and distributing food. For this reason, food safety education of volunteers is critical in minimizing foodborne illness among food bank and pantry clients. Nutrition education is less prevalent among volunteers at food banks and pantries, but it is emerging as a successful intervention for improving client health and food insecurity. A study was conducted to determine the nutrition and food safety literacy among supervisors and volunteers working in food banks and pantries in South Carolina. A survey of food pantry supervisors was administered to characterize South Carolina food pantries and to identify gaps in nutrition and food safety knowledge. Survey information was then used to create a series of food safety and nutrition education modules for food pantry volunteers. Pre and post-test scores of volunteers completing the modules were used to improve modules and determine knowledge retention

Behind the Scenes at a Climate Change Knowledge Sharing Network

Knowledge sharing networks are increasingly recognised as means of mobilising the knowledge and capacities needed to respond to complex and changing realities, such as the challenges posed by climate change. AfricaAdapt is one such network that describes its aim as 'facilitating the flow of climate change adaptation knowledge for sustainable livelihoods between researchers, policy makers, civil society organisations and communities who are vulnerable to climate variability and change across the [African] continent'. This paper takes a 'behind the scenes' look at the AfricaAdapt Network and the partnerships on which it is based and is thus intended to be useful for others seeking to collaboratively develop knowledge sharing networks. We focus on the dynamics of design and implementation of a knowledge sharing network in a distributed partnership, from the perspective of the former lead partner. Rather than looking at the delivery and outcomes of network activities, we explore the way in which the partners sought to develop sustainable relationships and ways of working to underpin the network, areas that are frequently under-examined, particularly among practitioners. Areas covered include: governance and management, staffing and planning, financial management, partnership dynamics, learning, capacity development, monitoring and evaluation. Although all knowledge sharing networks are different we have tried to identify insights and principles from this specific example that can be adapted and applied in other contexts. We hope that these insights will provide a useful contribution to the broader body of theory and experience around networks and knowledge sharingDfI

Positively curved Alexandrov spaces with circle symmetry in dimension 4

Positively curved Alexandrov spaces of dimension 4 with an isometric circle action are classified up to equivariant homeomorphism, subject to a certain additional condition on the infinitesimal geometry near fixed points which we conjecture is always satisfied. As a corollary, positively curved Riemannian orbifolds of dimension 4 with an isometric circle action are also classified

Almost non-negatively curved 4-manifolds with torus symmetry

We prove that if a closed, smooth, simply-connected 4-manifold with a circle action admits an almost non-negatively curved sequence of invariant Riemannian metrics, then it also admits a non-negatively curved Riemannian metric invariant with respect to the same action. The same is shown for torus actions of higher rank, giving a classification of closed, smooth, simply-connected 4-manifolds of almost non-negative curvature under the assumption of torus symmetry.Comment: 15 pages. As suggested by a referee for Proc. Amer. Math. Soc., the result is expanded in this version to include all torus actions, with the title changing accordingl

An Investigation of the Advantages and Disadvantages of University Students as Avatars in Virtual Learning Spaces

Authors have noted the increasing importance of avatars in Higher Education, as more teaching is conducted virtually, drawing upon gaming conventions. However, it is also recognised that little is known about how students make use of avatars (especially over an extended period) and the subsequent impact on learning experiences. For the last three years, a university module has been conducted within a persistent virtual world – where students (49 in 2020; 95 in 2021; 122 in 2022) predominantly interact with each other and teaching staff in avatar form. Observation data constitutes 60 hours of video recordings of virtual world seminars. Students have also been surveyed (average 40% response rate) and interviewed. The experience of learning on this module while in avatar form has been extremely positive, with students expressing many advantages to being an avatar – including the ability to express oneself in original/engaging ways, the ability to move freely in the environment (less restricted by social norms), increased confidence to speak up in class, reduced concern over actual physical appearance, and being praised for their avatar. Nevertheless, disadvantages were also apparent, including the distracting nature of certain avatars, inappropriate behaviours, usability challenges in designing an avatar, and lack of sense of self. An initial design framework for the use of avatars in Higher Education is proposed