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... The Post-2020 Global Biodiversity Framework currently is under development as part of the Convention of Biodiversity's aim to prevent global biodiversity losses by 2050, but targets can only be effectively developed and assessed if the data used for them are fit for purpose. The monitoring framework has been discussed at length and ensuring appropriate data use is critical to target effectiveness, ...
... This study provides an in-depth analysis of the characteristics of stellar occultation events. Using 10 target star sources, the influence of orbital elements on the number, duration, and distribution of stellar occultation events was simulated and analyzed, and the constellation configuration was designed. The results showed the following points: (1) the orbital inclination had the greatest influ ...
... Polarization calibration without artificial calibrators has been one of the focuses of research and discussion for PolSAR communities. However, there is limited research on the treatment of dual-polarization systems and the calibration methods for getting rid of distributed targets. In this paper, we contribute to proposing a new and convenient method for estimating the polarimetric channel imbala ...
... The sampling design of Deonar dumping ground located at Mumbai, India is conceptualized in this paper using seven different sampling protocols. The sampling design is developed to investigate the total mercury levels in the soil. Individual units are selected from the population to establish the pollution status of the area. It is seen that time and budgetary constraints are major factors affectin ...
dataquality, etc ; interferometry; models; satellites; spectral analysis; Show all 5 Subjects
Abstract:
... Fourier transform imaging spectrometers (FTISs) are widely used in global hyperspectral remote sensing due to the advantages of high stability, high throughput, and high spectral resolution. Spectrum reconstruction (SpecR) is a classic problem of FTISs determining the acquired data quality and application potential. However, the state-of-the-art SpecR algorithms were restricted by the length of ma ...
dataquality, etc ; aerosols; dust; lidar; models; photometers; Show all 6 Subjects
Abstract:
... Lidar networks are essential to study the three-dimensional distribution of aerosols on a regional scale. At present, both Mie-scattering lidar (ML) and advanced lidars are being used in lidar networks. The latter can retrieve extinction coefficients without strict assumptions of the lidar ratio, such as Raman lidar (RL) or high-spectral-resolution lidar (HSRL). In order to balance the data qualit ...
dataquality, etc ; geometry; latitude; statistical analysis; troposphere; Show all 5 Subjects
Abstract:
... The orbital inclination angle of the GLONASS constellation is about 10° larger than that of GPS, Galileo, and BDS. Theoretically, the higher orbital inclination angle could provide better observation geometry in high latitude regions. A wealth of research has investigated the positioning accuracy of GLONASS and its impact on multi-GNSS, but rarely considered the contribution of the GLONASS constel ...
dataquality, etc ; biodiversity; biodiversity conservation; botany; lichens; Show all 5 Subjects
Abstract:
... We assess the identification accuracy of ‘research grade’ observations of lichens posted on the online platform iNaturalist. Our results show that these observations are frequently misidentified or lack the necessary chemical and (or) microscopic information for accurate identification. Lichens are a taxonomically difficult group, but they are ubiquitous and eye-catching and are regularly the subj ...
dataquality, etc ; citizen science; cost effectiveness; governance; Show all 4 Subjects
Abstract:
... The proliferation of Citizen Science initiatives has increased the expectations of practitioners who need data for design, analysis, management and research in environmental applications. Many Citizen Science experiences have reported tangible societal benefits related to improved governance of natural resources due to the involvement of citizens and communities. However, from the perspective of d ...
dataquality, etc ; automation; exercise; filtration; microplastics; wastewater; Show all 6 Subjects
Abstract:
... The need for improved microplastic (MP) data accuracy has been widely reported, but MP precision issues have been investigated less thoroughly. This work demonstrates how initial and continuing assessments of a laboratory's analytical precision can be used for establishing laboratory repeatability for MP analyses. These precision estimates can be reported along with MP results to ensure their qual ...
dataquality, etc ; altitude; ionization; radar; satellites; China; Show all 6 Subjects
Abstract:
... As the observation accuracy of parameters in the ionosphere cannot be directly checked, the comparison with other observations is the main way to evaluate the data quality of satellite measurements. Through the comparative analysis between the in situ electron density (Ne) observed by the China Seismo-Electromagnetic Satellite (CSES) and Ne at about 500 km altitude detected by Qujing Incoherent Sc ...
dataquality, etc ; comparative study; politics; scientists; surveys; Show all 5 Subjects
Abstract:
... This special issue examines innovative methods in three areas of protest studies: (1) survey methodology and scaling, (2) the development and assessment of political event data, and (3) methods of contextual analysis. The articles provide new techniques and general methodologies for improving the quality of data that we have about protest, especially in the comparative study of protest. ...
dataquality, etc ; databases; international trade; statistics; trade statistics; Show all 5 Subjects
Abstract:
... International trade has been considered a critical driving force of material flows and their environmental pressures, which has been a global research hotspot. The United Nations Commodity Trade Statistics Database (UN Comtrade) is the original and probably the most widely-used data source to support the physical trade analysis. However, data discrepancies have been discovered in UN Comtrade, whic ...
dataquality, etc ; data analysis; spatial data; statistical analysis; Show all 4 Subjects
Abstract:
... Volunteer-contributed geographic data (VGI) is an important source of geospatial big data that support research and applications. A major concern on VGI data quality is that the underlying observation processes are inherently biased. Detecting observation hot-spots thus helps better understand the bias. Enabled by the parallel kernel density estimation (KDE) computational tool that can run on mult ...
dataquality, etc ; aquatic environment; drugs; perfluorocarbons; research; water; Show all 6 Subjects
Abstract:
... The occurrence of emerging contaminants (ECs), such as pharmaceuticals and personal care products (PPCPs), perfluoroalkyl and polyfluoroalkyl substances (PFASs) and endocrine-disrupting chemicals (EDCs) in aquatic environments represent a major threat to water resources due to their potential risks to the ecosystem and humans even at trace levels. Mathematical modelling can be a useful tool as a c ...
dataquality, etc ; algorithms; electricity; energy; lithium batteries; models; Show all 6 Subjects
Abstract:
... Reducing costs for battery energy storage systems and the increasing availability of onsite generation sources are driving development of complex battery control algorithms principally aimed at minimising electricity costs. These algorithms combine forecasts of site consumption, generation and electricity costs and a model of the battery system in a solver that minimises a cost objective over some ...
dataquality, etc ; algorithms; augmented reality; geometry; spatial data; Show all 5 Subjects
Abstract:
... High-performance spatial target snapping is an essential function in 3D scene modeling and mapping that is widely used in mobile augmented reality (MAR). Spatial data snapping in a MAR system must be quick and accurate, while real-time human–computer interaction and drawing smoothness must also be ensured. In this paper, we analyze the advantages and disadvantages of several spatial data snapping ...
dataquality, etc ; quantitative genetics; statistical analysis; sugarcane; sugars; Show all 5 Subjects
Abstract:
... Application of statistical analysis and quantitative genetics varies among sugarcane breeding programs around the world. Some methods and concepts are difficult to understand for those without an educational background in statistics. This paper is mainly targeted at readers with little prior experience in statistical analysis and quantitative genetics and aims to encourage further study and applic ...
dataquality, etc ; climate; electricity; energy; energy policy; India; Show all 6 Subjects
Abstract:
... This study evaluates the effect of complete nationwide lockdown in 2020 on residential electricity demand across 13 Indian cities and the role of digitalisation using a public smart meter dataset. We undertake a data-driven approach to explore the energy impacts of work-from-home norms across five dwelling typologies. Our methodology includes climate correction, dimensionality reduction and machin ...
dataquality, etc ; biomarkers; genes; mental health; model validation; Show all 5 Subjects
Abstract:
... Machine learning (ML) is increasingly deployed on biomedical studies for biomarker development (feature selection) and diagnostic/prognostic technologies (classification). While different ML techniques produce different feature sets and classification performances, less understood is how upstream data processing methods (e.g., normalisation) impact downstream analyses. Using a clinical mental heal ...