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Selection: library 6268 articles 

 

Climate-vegetation-fire interactions and feedbacks: trivial detail or major barrier to projecting the future of the Earth system?

  
Wiley Interdisciplinary Reviews: Climate Change, Vol. 7, No. 6. (1 November 2016), pp. 910-931, https://doi.org/10.1002/wcc.428

Abstract

Fire is a complex process involving interactions and feedbacks between biological, socioeconomic, and physical drivers across multiple spatial and temporal scales. This complexity limits our ability to incorporate fire into Earth system models and project future fire activity under climate change. Conceptual, empirical, and process models have identified the mechanisms and processes driving fire regimes, and provide a useful basis to consider future fire activity. However, these models generally deal with only one component of fire regimes, fire frequency, and do ...

 

Predicting climate change effects on wildfires requires linking processes across scales

  
Wiley Interdisciplinary Reviews: Climate Change, Vol. 2, No. 1. (January 2011), pp. 99-112, https://doi.org/10.1002/wcc.92

Abstract

Accurate process‐based prediction of climate change effects on wildfires requires coupling processes across orders of magnitude of time and space scales, because climate dynamic processes operate at relatively large scales (e.g., hemispherical and centennial), but fire behavior processes operate at relatively small scales (e.g., molecules and microseconds). In this review, we outline some of the current understanding of the processes by which climate/meteorology controls wildfire behavior by focusing on four critical stages of wildfire development: (1) fuel drying, (2) ignition, (3) ...

 

A lightning parameterization for the ECMWF integrated forecasting system

  
Monthly Weather Review, Vol. 144, No. 9. (September 2016), pp. 3057-3075, https://doi.org/10.1175/mwr-d-16-0026.1
Keywords: ecmwf   forecast   lightning   meteorology  

Abstract

A new parameterization able to diagnose lightning flash densities is proposed for the ECMWF Integrated Forecasting System, including its tangent-linear and adjoint versions. Total lightning densities are expressed as a function of hydrometeors contents, convective available potential energy, and cloud-base height output by the convective parameterization. Potential future applications range from the computation of NOx emissions by lightning in atmospheric chemistry models, severe convection forecasting, and data assimilation. In this study, a decade-long experiment is used to calibrate the simulated global ...

 

Projected increase in lightning strikes in the United States due to global warming

  
Science, Vol. 346, No. 6211. (13 November 2014), pp. 851-854, https://doi.org/10.1126/science.1259100

Abstract

[Abstract] Lightning plays an important role in atmospheric chemistry and in the initiation of wildfires, but the impact of global warming on lightning rates is poorly constrained. Here we propose that the lightning flash rate is proportional to the convective available potential energy (CAPE) times the precipitation rate. Using observations, the product of CAPE and precipitation explains 77% of the variance in the time series of total cloud-to-ground lightning flashes over the contiguous United States (CONUS). Storms convert CAPE times precipitated water ...

 

A projected decrease in lightning under climate change

  
Nature Climate Change, Vol. 8, No. 3. (12 February 2018), pp. 210-213, https://doi.org/10.1038/s41558-018-0072-6

Abstract

Lightning strongly influences atmospheric chemistry1,2,3, and impacts the frequency of natural wildfires4. Most previous studies project an increase in global lightning with climate change over the coming century1,5,6,7, but these typically use parameterizations of lightning that neglect cloud ice fluxes, a component generally considered to be fundamental to thunderstorm charging8. As such, the response of lightning to climate change is uncertain. Here, we compare lightning projections for 2100 using two parameterizations: the widely used cloud-top height (CTH) approach9, and a new ...

 

A data-driven approach to assess large fire size generation in Greece

  
Natural Hazards, Vol. 88, No. 3. (2017), pp. 1591-1607, https://doi.org/10.1007/s11069-017-2934-z

Abstract

Identifying factors and drivers which control large fire size generation is critical for planning fire management activities. This study attempts to determine the role of fire suppression tactics and behavior, weather, topography and landscape features on two different datasets of large fire size (500–1000 ha) and very large fire size (>1000 ha) compared to two datasets of small fire size (<50 ha) which occurred in Greece, during the period 1984–2009. In this context, we used a logistic regression (LR) analysis and ...

 

How wildfire risk is related to urban planning and Fire Weather Index in SE France (1990–2013)

  
Science of The Total Environment, Vol. 621 (April 2018), pp. 120-129, https://doi.org/10.1016/j.scitotenv.2017.11.174

Abstract

[Highlights] [::] Land use planning in SE France led to increased housing density in 1990-2012 and maintained WUI wildfire risk constant. [::] The number of buildings increased by 30% but WUI area increased by less than 5% as housing density increased. [::] Fire frequency and burned area increase substantially as Fire Weather Index surpasses a threshold value of 90. [Abstract] Wildfires burn > 450,000 ha of forest every year in Euro-Mediterranean countries. Many fires originate in the Wildland Urban Interface (WUI) where housing density and weather ...

 

Mapping regional patterns of large forest fires in Wildland–Urban Interface areas in Europe

  
Journal of Environmental Management, Vol. 172 (May 2016), pp. 112-126, https://doi.org/10.1016/j.jenvman.2016.02.013

Abstract

[Highlights] [::] A European Wildland–Urban Interface (WUI) map was presented. [::] The European WUI areas have been correlated with occurrence of large burned surfaces. [::] Peri-urban areas and Mediterranean touristic areas show strong co-occurrence of WUI and fires. [::] Burned surface probabilities within 5000 m of the WUI areas are estimated to map fire risk. [Abstract] Over recent decades, Land Use and Cover Change (LUCC) trends in many regions of Europe have reconfigured the landscape structures around many urban areas. In these areas, the proximity to landscape ...

 

Impact of El Niño-Southern Oscillation on European climate

  
Reviews of Geophysics, Vol. 45, No. 3. (11 September 2007), pp. n/a-n/a, https://doi.org/10.1029/2006rg000199

Abstract

El Niño–Southern Oscillation (ENSO) is arguably the most important global climate pattern. While the effects in the Pacific–North American sector and the tropical regions are relatively well understood, the impacts on the circulation in the North Atlantic–European sector are discussed more controversially. Studies from the past 10 years demonstrate that ENSO does affect European climate. However, some of the effects undergo a seasonal modulation or are nonlinear. The signal can be modified by other factors and might be nonstationary on multidecadal ...

 

The seasonal effects of ENSO on European precipitation: observational analysis

  
Journal of Climate, Vol. 27, No. 17. (13 September 2014), pp. 6423-6438, https://doi.org/10.1175/jcli-d-14-00008.1

Abstract

An analysis and characterization of seasonal changes in the atmospheric teleconnection between ENSO and western European precipitation, as well as atmospheric conditions over the North Atlantic and Europe, are presented. Significant ENSO-associated changes in precipitation are evident during the boreal spring and fall seasons, marginal during boreal summer, and absent during boreal winter. The spring and fall precipitation anomalies are accompanied by statistically significant ENSO-related changes in large-scale fields over the North Atlantic and Europe. These seasonal teleconnections appear to be ...

 

Pathways limiting warming to 1.5°C: a tale of turning around in no time?

  
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, Vol. 376, No. 2119. (02 April 2018), 20160457, https://doi.org/10.1098/rsta.2016.0457

Abstract

We explore the feasibility of limiting global warming to 1.5°C without overshoot and without the deployment of carbon dioxide removal (CDR) technologies. For this purpose, we perform a sensitivity analysis of four generic emissions reduction measures to identify a lower bound on future CO2 emissions from fossil fuel combustion and industrial processes. Final energy demand reductions and electrification of energy end uses as well as decarbonization of electricity and non-electric energy supply are all considered. We find the lower bound of ...

 

How cleaner air changes the climate

  
Science, Vol. 360, No. 6385. (13 April 2018), pp. 148-150, https://doi.org/10.1126/science.aat1723

Abstract

Aerosols have a strong influence on the present climate, but this influence will likely be reduced over the coming decades as air pollution measures are implemented around the world. At a global level, aerosols have helped to reduce the warming effect from greenhouse gas emissions, and necessary reductions in air pollution may thus make it harder to achieve ambitious global climate and environmental aims, such as the Paris Agreement's 2°C target. Furthermore, the local nature of air pollution means that the ...

 

Microbial oxidation of lithospheric organic carbon in rapidly eroding tropical mountain soils

  
Science, Vol. 360, No. 6385. (12 April 2018), pp. 209-212, https://doi.org/10.1126/science.aao6463

Abstract

[Microbes eat rocks and leave carbon dioxide] The reaction of atmospheric carbon dioxide (CO2) with silicate rocks provides a carbon sink that helps counterbalance the release of CO2 by volcanic degassing. However, some types of rocks contain petrogenic organic carbon, the oxidation of which adds CO2 to the atmosphere, counteracting the drawdown by silicates. Hemingway et al. present evidence from the rapidly eroding Central Range of Taiwan showing that microbes oxidize roughly two-thirds of the petrogenic organic carbon there and that the ...

 

Eroding mountains could release, not trap, greenhouse gases

  

Abstract

[Excerpt] The hills are hiding a carbon cache. For decades, scientists believed that the erosion of mountains caused carbon dioxide (CO2) in the atmosphere to drop, as silicate rocks newly exposed to rainwater would “weather,” taking up carbon in carbonate minerals that would sluice down rivers and be sequestered on the sea floor. [\n] But a new line of research, published this week in Science, is complicating that picture. A team of scientists has found that, thanks to opportunistic microbes, some mountain ...

 

(INRMM-MiD internal record) List of keywords of the INRMM meta-information database - part 45

  
(February 2018)
Keywords: inrmm-list-of-tags  

Abstract

List of indexed keywords within the transdisciplinary set of domains which relate to the Integrated Natural Resources Modelling and Management (INRMM). In particular, the list of keywords maps the semantic tags in the INRMM Meta-information Database (INRMM-MiD). [\n] The INRMM-MiD records providing this list are accessible by the special tag: inrmm-list-of-tags ( http://mfkp.org/INRMM/tag/inrmm-list-of-tags ). ...

 

(INRMM-MiD internal record) List of keywords of the INRMM meta-information database - part 44

  
(February 2018)

Abstract

List of indexed keywords within the transdisciplinary set of domains which relate to the Integrated Natural Resources Modelling and Management (INRMM). In particular, the list of keywords maps the semantic tags in the INRMM Meta-information Database (INRMM-MiD). [\n] The INRMM-MiD records providing this list are accessible by the special tag: inrmm-list-of-tags ( http://mfkp.org/INRMM/tag/inrmm-list-of-tags ). ...

 

(INRMM-MiD internal record) List of keywords of the INRMM meta-information database - part 43

  
(February 2018)
Keywords: inrmm-list-of-tags   viburnum-spp   vicia-faba   vietnam   vinca-spp   vineyards   violin   viral-disease   virgin-forest   virola-koschnyi   virus   viscum-album   visual-assessment   visual-interpretation   visual-notation   visualization   vitality   vitex-keniensis   vitis-spp   vochysia-divergens   vochysia-ferruginea   vochysia-guatemalensis   volatiles   volcanic-eruptions   volunteered-geographic-information   vulnerability   vulpes-vulpes   walnut   walnut-leaf   warming   washingtonia-filifera   washingtonia-robusta   water   water-balance   water-erosion   water-impoundment   water-pollution   water-potential   water-quality   water-reservoir-management   water-reservoir-network   water-resources   water-resources-management   water-scarcity   water-security   water-storage   water-stress   water-use-efficiency   waterlogging   waves-energy   weather-modification   web-and-information-technologies   web-coverage-services   web-map-services   web-processing-services   web-services   weibull-distribution   weighting   wepp   west-africa   west-antartica   western-alps   western-asia   western-europe   western-mediterranean   westringia-fruticosa   wetland-investigations   wetlands   wheat   wicked-problem   wide-scale   wide-scale-transdisciplinary-modelling-for-environment   wide-vs-large-scale   widespread-plant-species   wiesa   wiki-communication   wild-service-tree   wilderness   wildfires   wildland-urban-interface   wilt   wind   wind-damage   wind-energy   wind-machines   wind-model   windows   windstorm   windthrow   wine-barrel   winter-robustness   wisteria-sinensis   wollemia-nobilis   women   wood-instrument   wood-market   wood-pellet   wood-production   wood-properties   wood-shreds  

Abstract

List of indexed keywords within the transdisciplinary set of domains which relate to the Integrated Natural Resources Modelling and Management (INRMM). In particular, the list of keywords maps the semantic tags in the INRMM Meta-information Database (INRMM-MiD). [\n] The INRMM-MiD records providing this list are accessible by the special tag: inrmm-list-of-tags ( http://mfkp.org/INRMM/tag/inrmm-list-of-tags ). ...

 

(INRMM-MiD internal record) List of keywords of the INRMM meta-information database - part 42

  
(February 2018)
Keywords: inrmm-list-of-tags   tuscany   tuta-absoluta   twig-dieback   two-dimensional-gas-chromatography   two-stage-peer-review   udig   uganda   ukraine   ulex-europaeus   ulmus-americana   ulmus-carpinifolia   ulmus-glabra   ulmus-laevis   ulmus-minor   ulmus-parvifolia   ulmus-procera   ulmus-pumila   ulmus-rubra   ulmus-spp   ulmus-thomasii   umbellularia-californica   umbrella-species   un-framework-convention-on-climate-change   uncertainty   uncertainty-propagation   underfitting   understorey   understorey-species   undisturbed-habitat   uneven-aged-forest   unexpected-effect   unfalsifiability   ungulate   ungulate-browsing   united-kingdom   united-nations   united-states   universal-approximation   unknown   unrealistic-expectations   unsupervised-training   upper-treeline   uprooting   urban-areas   urban-forest   urban-habitats   urban-trees   urgent-hpc   url-decay   urocerus-gigas   ursus-arctos   usda   ushahidi   usle   usle-m   usped   utilization   vaccination   vaccinium-arctostaphylos   vaccinium-myrtillus   vaccinium-oxycoccos   vaccinium-spp   vaccinium-uliginosum   vaccinium-vitis-idaea   vaccinum-myrtillus   validation   valsa-melanodiscus   values-at-stake   values-vs-scientific-evidence   vapour-pressure-deficit   variability   variable-selection   variance-partitioning   variation   vascular-plants   vascular-system   vauable   vegetation   vegetation-buffer   vegetation-changes   vegetation-composition   vegetation-condition   vegetation-diversity   vegetation-dynamics   vegetation-types   vegetative-propagation   vehicle-detection   veneer   venice   verification-vs-corroboration   veronica-micrantha   veronica-officinalis   vertebrate   verticillium-dahliae   vgi   viburnum-lantana   viburnum-opalus   viburnum-opulus   viburnum-orientale  

Abstract

List of indexed keywords within the transdisciplinary set of domains which relate to the Integrated Natural Resources Modelling and Management (INRMM). In particular, the list of keywords maps the semantic tags in the INRMM Meta-information Database (INRMM-MiD). [\n] The INRMM-MiD records providing this list are accessible by the special tag: inrmm-list-of-tags ( http://mfkp.org/INRMM/tag/inrmm-list-of-tags ). ...

 

(INRMM-MiD internal record) List of keywords of the INRMM meta-information database - part 41

  
(February 2018)
Keywords: inrmm-list-of-tags   thrinax-radiata   thuja-occidentalis   thuja-plicata   thuja-spp   tibet   tilia-americana   tilia-amurensis   tilia-argentea   tilia-cordata   tilia-dasystyla   tilia-platyphyllos   tilia-spp   tilia-tomentosa   tilio-acerion   tillage   timber-harvesting   timber-quality   timber-uses   timber-value   time-lags   time-series   tipovers   tipping-point   todo-replace-book-abstract-with-chapter-abstract   tolerance   tomicobia-seitneri   tomicus-piniperda   tomicus-spp   tool-driven   toona-ciliata   top-down   topographic-position-index   topographic-wetness-index   topography   topology   topsoil-grain-size   torcello   tornado   torreya-californica   torreya-spp   torreya-taxifolia   tortrix-viridana   totum-pro-parte-bias   tourism   toxicity   trade-offs   trade-regulations   traditional-remedy   training-course   trait-based-approach   transboundary-effects   transcendental-functions   transdiciplinary-scientific-communication   transdisciplinary-research   transect   transparency   transport   transport-system   transportation-impacts   treculia-africana   tree-age   tree-breeding   tree-cancer   tree-defoliation   tree-density   tree-diseases   tree-diversity   tree-ecology   tree-fall   tree-fruits   tree-height   tree-limit   tree-line   tree-mortality   tree-rings   tree-sap   tree-seeds   tree-species   tree-virus   treefall   trichilogaster-acaciaelongifoliae   trichiocampus-viminalis   trinidad-island   tropical-areas   tropical-climate   tropical-forest   tropical-forests   tropical-mountain-forest   tropical-storms   tropics   trunk-sucker   tsuga-canadensis   tsuga-chinensis   tsuga-heterophylla   tsuga-mertensiana   tsuga-spp   tundra   turing-completeness   turkey  

Abstract

List of indexed keywords within the transdisciplinary set of domains which relate to the Integrated Natural Resources Modelling and Management (INRMM). In particular, the list of keywords maps the semantic tags in the INRMM Meta-information Database (INRMM-MiD). [\n] The INRMM-MiD records providing this list are accessible by the special tag: inrmm-list-of-tags ( http://mfkp.org/INRMM/tag/inrmm-list-of-tags ). ...

 

Spatial-temporal variation of near-surface temperature lapse rates over the Tianshan Mountains, central Asia

  
Journal of Geophysical Research: Atmospheres, Vol. 121, No. 23. (16 December 2016), pp. 14006-14017, https://doi.org/10.1002/2016jd025711

Abstract

Adequate estimates of near‐surface temperature lapse rate (γlocal) are needed to represent air temperature in remote mountain regions with sparse instrumental records such as the mountains of central Asia. To identify the spatial and temporal variations of γlocal in the Tianshan Mountains, long‐term (1961–2011) daily maximum, mean, and minimum temperature (Tmax, Tmean, and Tmin) data from 17 weather stations and 1 year of temperature logger data were analyzed considering three subregions: northern slopes, Kaidu Basin, and southern slopes. Simple linear regression was ...

 

AMORE: A MORE flexible neural network package

  
In The Comprehensive R Archive Network (2014)

Abstract

This package was born to release the TAO robust neural network algorithm to the R users. It has grown and I think it can be of interest for the users wanting to implement their own training algorithms as well as for those others whose needs lye only in the "user space". ...

 

Land use strategies to mitigate climate change in carbon dense temperate forests

  
Proceedings of the National Academy of Sciences, Vol. 115, No. 14. (03 April 2018), pp. 3663-3668, https://doi.org/10.1073/pnas.1720064115

Abstract

[Significance] Regional quantification of feasibility and effectiveness of forest strategies to mitigate climate change should integrate observations and mechanistic ecosystem process models with future climate, CO2, disturbances from fire, and management. Here, we demonstrate this approach in a high biomass region, and found that reforestation, afforestation, lengthened harvest cycles on private lands, and restricting harvest on public lands increased net ecosystem carbon balance by 56% by 2100, with the latter two actions contributing the most. Forest sector emissions tracked with our life ...

 

A sensible climate solution for the boreal forest

  
Nature Climate Change, Vol. 8, No. 1. (2 January 2018), pp. 11-12, https://doi.org/10.1038/s41558-017-0043-3

Abstract

Climate change could increase fire risk across most of the managed boreal forest. Decreasing this risk by increasing the proportion of broad-leaved tree species is an overlooked mitigation–adaption strategy with multiple benefits. ...

 

An Introduction to R - Notes on R: a programming environment for data analysis and graphics

  
(2018)

Abstract

[Excerpt: The R environment] R is an integrated suite of software facilities for data manipulation, calculation and graphical display. Among other things it has [::] an effective data handling and storage facility, [::] a suite of operators for calculations on arrays, in particular matrices, [::] a large, coherent, integrated collection of intermediate tools for data analysis, [::] graphical facilities for data analysis and display either directly at the computer or on hardcopy, and [::] a well developed, simple and effective programming language (called ‘S’) which includes conditionals, ...

 

Caliver: an R package for CALIbration and VERification of forest fire gridded model outputs

  
PLOS ONE, Vol. 13, No. 1. (2 January 2018), e0189419, https://doi.org/10.1371/journal.pone.0189419

Abstract

The name caliver stands for CALIbration and VERification of forest fire gridded model outputs. This is a package developed for the R programming language and available under an APACHE-2 license from a public repository. In this paper we describe the functionalities of the package and give examples using publicly available datasets. Fire danger model outputs are taken from the modeling components of the European Forest Fire Information System (EFFIS) and observed burned areas from the Global Fire Emission Database (GFED). Complete ...

 

Attribution of recent temperature behaviour reassessed by a neural-network method

  
Scientific Reports, Vol. 7, No. 1. (15 December 2017), https://doi.org/10.1038/s41598-017-18011-8

Abstract

Attribution studies on recent global warming by Global Climate Model (GCM) ensembles converge in showing the fundamental role of anthropogenic forcings as primary drivers of temperature in the last half century. However, despite their differences, all these models pertain to the same dynamical approach and come from a common ancestor, so that their very similar results in attribution studies are not surprising and cannot be considered as a clear proof of robustness of the results themselves. Thus, here we adopt a ...

 

Cross-validation strategies for data with temporal, spatial, hierarchical, or phylogenetic structure

  
Ecography, Vol. 40, No. 8. (1 August 2017), pp. 913-929, https://doi.org/10.1111/ecog.02881

Abstract

Ecological data often show temporal, spatial, hierarchical (random effects), or phylogenetic structure. Modern statistical approaches are increasingly accounting for such dependencies. However, when performing cross-validation, these structures are regularly ignored, resulting in serious underestimation of predictive error. One cause for the poor performance of uncorrected (random) cross-validation, noted often by modellers, are dependence structures in the data that persist as dependence structures in model residuals, violating the assumption of independence. Even more concerning, because often overlooked, is that structured data also ...

 

Fire forbids fifty-fifty forest

  
PLOS ONE, Vol. 13, No. 1. (19 January 2018), e0191027, https://doi.org/10.1371/journal.pone.0191027

Abstract

Recent studies have interpreted patterns of remotely sensed tree cover as evidence that forest with intermediate tree cover might be unstable in the tropics, as it will tip into either a closed forest or a more open savanna state. Here we show that across all continents the frequency of wildfires rises sharply as tree cover falls below ~40%. Using a simple empirical model, we hypothesize that the steepness of this pattern causes intermediate tree cover (30‒60%) to be unstable for a ...

 

A landscape of disgust

  
Science, Vol. 359, No. 6381. (15 March 2018), pp. 1213-1214, https://doi.org/10.1126/science.aas8694

Abstract

A rancid meal, a moist handshake, a pile of feces: These phenomena elicit disgust and avoidance that protect humans from our most pervasive consumer—infectious agents. This avoidance is not specific to humans. Various animals alter their behavior to avoid infection (1). For instance, Poirotte et al. recently showed that mandrills avoid parasite-contaminated feces and refrain from grooming infected individuals (2). These primates' nuanced ability to detect and alter their behavior in response to differential exposure risk suggests close parallels to the ...

 

Slavery from Space: demonstrating the role for satellite remote sensing to inform evidence-based action related to UN SDG number 8

  
ISPRS Journal of Photogrammetry and Remote Sensing (March 2018), https://doi.org/10.1016/j.isprsjprs.2018.02.012

Abstract

The most recent Global Slavery Index estimates that there are 40.3 million people enslaved globally. The UN’s Agenda 2030 for Sustainable Development Goal number 8, section 8.7 specifically refers to the issue of forced labour: ending modern slavery and human trafficking, including child labour, in all forms by 2025. Although there is a global political commitment to ending slavery, one of the biggest barriers to doing so is having reliable and timely, spatially explicit and scalable data on slavery activity. The ...

 

Statistical modeling: the two cultures (with comments and a rejoinder by the author)

  
Statistical Science, Vol. 16, No. 3. (August 2001), pp. 199-231, https://doi.org/10.1214/ss/1009213726

Abstract

There are two cultures in the use of statistical modeling to reach conclusions from data. One assumes that the data are generated by a given stochastic data model. The other uses algorithmic models and treats the data mechanism as unknown. The statistical community has been committed to the almost exclusive use of data models. This commitment has led to irrelevant theory, questionable conclusions, and has kept statisticians from working on a large range of interesting current problems. Algorithmic modeling, both in ...

 

Nigeria demographic and health survey 2013

  
(2014)

Abstract

[Excerpt:: Foreword] Nigeria Demographic and Health Survey (NDHS) 2013 is the fourth survey of its kind to be implemented by the National Population Commission (NPC). As the agency charged with the responsibility of collecting, collating, and analysing demographic data, the Commission has been unrelenting in its efforts to provide reliable, accurate, and up-to-date data for the country. We hope that information contained in this report will assist policymakers and programme managers in monitoring and designing programmes and strategies for improving health and family planning services in Nigeria. ...

 

Nigeria demographic and health survey 2008

  
(2009)

Abstract

[Excerpt: Summary of findings] The 2008 Nigeria Demographic Health Survey (NDHS) is a nationally representative survey of 33,385 women age 15-49 and 15,486 men age 15-59. The 2008 NDHS is the fourth comprehensive survey conducted in Nigeria as part of the Demographic and Health Surveys (DHS) programme. The data are intended to furnish programme managers and policymakers with detailed information on levels and trends in fertility; nuptiality; sexual activity; fertility preferences; awareness and use of family planning methods; infants and young children feeding practices; nutritional status of mothers and young children; early childhood mortality and ...

 

WHO child growth standards: length/height-for-age, weight-for-age, weight-for-length, weight-for-height and body mass index-for-age - Methods and development

  
(2006)

Abstract

[:Executive summary: Methods and development] In 1993 the World Health Organization (WHO) undertook a comprehensive review of the uses and interpretation of anthropometric references. The review concluded that the NCHS/WHO growth reference, which had been recommended for international use since the late 1970s, did not adequately represent early childhood growth and that new growth curves were necessary. The World Health Assembly endorsed this recommendation in 1994. In response WHO undertook the Multicentre Growth Reference Study (MGRS) between 1997 and 2003 to generate ...

 

Stacked generalization

  
Neural Networks, Vol. 5, No. 2. (January 1992), pp. 241-259, https://doi.org/10.1016/s0893-6080(05)80023-1

Abstract

This paper introduces stacked generalization, a scheme for minimizing the generalization error rate of one or more generalizers. Stacked generalization works by deducing the biases of the generalizer(s) with respect to a provided learning set. This deduction proceeds by generalizing in a second space whose inputs are (for example) the guesses of the original generalizers when taught with part of the learning set and trying to guess the rest of it, and whose output is (for example) the correct guess. When ...

 

Creating spatial interpolation surfaces with DHS data

  
No. 11. (2015)

Abstract

Improved understanding of sub-national geographic variation and inequity in demographic and health indicators is increasingly recognized as central to meeting development goals. Data from DHS surveys are critical to monitoring progress in these indicators but are generally not used to support sub-national evaluation below the first-level administrative unit. This study explored the potential of geostatistical approaches for the production of interpolated surfaces from GPS cluster located survey data, and for the prediction of gridded surfaces at 5×5km resolution. The impact of DHS cluster displacement on these interpolated ...

 

Assessing comorbidity and correlates of wasting and stunting among children in Somalia using cross-sectional household surveys: 2007 to 2010

  
BMJ Open, Vol. 6, No. 3. (09 March 2016), e009854, https://doi.org/10.1136/bmjopen-2015-009854

Abstract

[Objective] Wasting and stunting may occur together at the individual child level; however, their shared geographic distribution and correlates remain unexplored. Understanding shared and separate correlates may inform interventions. We aimed to assess the spatial codistribution of wasting, stunting and underweight and investigate their shared correlates among children aged 6–59 months in Somalia. [Setting] Cross-sectional nutritional assessments surveys were conducted using structured interviews among communities in Somalia biannually from 2007 to 2010. A two-stage cluster sampling methodology was used to select children aged ...

 

Hierarchical Bayesian modeling

  
In Subjective and Objective Bayesian Statistics: Principles, Models, and Applications, Second Edition (25 November 2002), pp. 336-358, https://doi.org/10.1002/9780470317105.ch14
edited by S. James Press

Abstract

[Excerpt: Introduction] Hierarchical modeling is a widely used approach to building complex models by specifying a series of more simple conditional distributions. It naturally lends itself to Bayesian inference, especially using modern tools for Bayesian computation. In this chapter we first present essential concepts of hierarchical modeling, and then suggest its generality by presenting a series of widely used specific models. [...] [\n] [...] [Summary] In this chapter we have introduced hierarchical modeling as a very general approach to specifying complex models through a ...

 

Poverty, health and satellite-derived vegetation indices: their inter-spatial relationship in West Africa

  
International Health, Vol. 7, No. 2. (March 2015), pp. 99-106, https://doi.org/10.1093/inthealth/ihv005

Abstract

[Background] Previous analyses have shown the individual correlations between poverty, health and satellite-derived vegetation indices such as the normalized difference vegetation index (NDVI). However, generally these analyses did not explore the statistical interconnections between poverty, health outcomes and NDVI. [Methods] In this research aspatial methods (principal component analysis) and spatial models (variography, factorial kriging and cokriging) were applied to investigate the correlations and spatial relationships between intensity of poverty, health (expressed as child mortality and undernutrition), and NDVI for a large area of West ...

 

Mapping under-5 and neonatal mortality in Africa, 2000–15: a baseline analysis for the Sustainable Development Goals

  
The Lancet, Vol. 390, No. 10108. (November 2017), pp. 2171-2182, https://doi.org/10.1016/s0140-6736(17)31758-0
Keywords: africa   development   mapping   modelling   mortality  

Abstract

[Background] During the Millennium Development Goal (MDG) era, many countries in Africa achieved marked reductions in under-5 and neonatal mortality. Yet the pace of progress toward these goals substantially varied at the national level, demonstrating an essential need for tracking even more local trends in child mortality. With the adoption of the Sustainable Development Goals (SDGs) in 2015, which established ambitious targets for improving child survival by 2030, optimal intervention planning and targeting will require understanding of trends and rates of progress ...

 

Fine resolution mapping of population age-structures for health and development applications

  
Journal of The Royal Society Interface, Vol. 12, No. 105. (18 March 2015), 20150073, https://doi.org/10.1098/rsif.2015.0073

Abstract

The age-group composition of populations varies considerably across the world, and obtaining accurate, spatially detailed estimates of numbers of children under 5 years is important in designing vaccination strategies, educational planning or maternal healthcare delivery. Traditionally, such estimates are derived from population censuses, but these can often be unreliable, outdated and of coarse resolution for resource-poor settings. Focusing on Nigeria, we use nationally representative household surveys and their cluster locations to predict the proportion of the under-five population in 1 × ...

 

Nigeria AIMS geocoded research release, version 1.3.1

  
In AidData Datasets (2016)
Keywords: data   development   funding   geospatial   nigeria   open-data  

Abstract

[Excerpt: Full description] This geocoded dataset release represents all projects in Nigeria's Development Assistance Database (DAD). It tracks 595 projects across 1843 locations between 1988 and 2014. Data for $2,116,331,293.00 in geocoded commitments and $6,093,125,384.00 in geocoded disbursements are contained within the dataset. The included "project.tsv," "locations.tsv," and "transactions.tsv" are structured so as to be combinable with other v1.0 geocoded dataset releases. All tables in the data folder can be joined by DAD project ids. This ...

 

Paintings predict the distribution of species, or the challenge of selecting environmental predictors and evaluation statistics

  
Global Ecology and Biogeography, Vol. 27, No. 2. (February 2018), pp. 245-256, https://doi.org/10.1111/geb.12684

Abstract

[Aim] Species distribution modelling, a family of statistical methods that predicts species distributions from a set of occurrences and environmental predictors, is now routinely applied in many macroecological studies. However, the reliability of evaluation metrics usually employed to validate these models remains questioned. Moreover, the emergence of online databases of environmental variables with global coverage, especially climatic, has favoured the use of the same set of standard predictors. Unfortunately, the selection of variables is too rarely based on a careful examination of ...

 

Applied regression and multilevel/hierarchical models

  
(2006)

Abstract

Data Analysis Using Regression and Multilevel/Hierarchical Models is a comprehensive manual for the applied researcher who wants to perform data analysis using linear and nonlinear regression and multilevel models. The book introduces and demonstrates a wide variety of models, at the same time instructing the reader in how to fit these models using freely available software packages. The book illustrates the concepts by working through scores of real data examples that have arisen in the authors’ own applied research, with programming code provided for each one. Topics ...

 

New global forest/non-forest maps from ALOS PALSAR data (2007–2010)

  
Remote Sensing of Environment, Vol. 155 (December 2014), pp. 13-31, https://doi.org/10.1016/j.rse.2014.04.014

Abstract

[Highlights] [::] Global mosaics of ALOS-SAR data were generated annually from 2007 to 2010. [::] Region variability in L-band HH and HV gamma-naught (γ0) for forests was observed. [::] Region-specific thresholds were applied to produce a global forest/non-forest map. [::] The overall agreement was 95%. [::] Annual decreases of HH and HV γ0 suggest a decrease in forest and smoothing Earth. [Abstract] Four global mosaics of Advanced Land Observing Satellite (ALOS) Phased Arrayed L-band Synthetic Aperture Radar (SAR) HH and HV polarization data were generated at 25 m ...

 

Global land cover mapping at 30m resolution: A POK-based operational approach

  
ISPRS Journal of Photogrammetry and Remote Sensing, Vol. 103 (May 2015), pp. 7-27, https://doi.org/10.1016/j.isprsjprs.2014.09.002

Abstract

Global Land Cover (GLC) information is fundamental for environmental change studies, land resource management, sustainable development, and many other societal benefits. Although GLC data exists at spatial resolutions of 300 m and 1000 m, a 30 m resolution mapping approach is now a feasible option for the next generation of GLC products. Since most significant human impacts on the land system can be captured at this scale, a number of researchers are focusing on such products. This paper reports the operational ...

 

Rethinking wildfires and forest watersheds

  
Science, Vol. 359, No. 6379. (01 March 2018), pp. 1001.2-1002, https://doi.org/10.1126/science.aar8120

Abstract

[Excerpt] [...] The secondary threats of wildfires to water supply are particularly concerning, as almost two-thirds of municipalities in North America receive their drinking water from forested areas [...]. Key threats include increased potential for erosion, landslides, debris flows, floods, and introduction of contaminants to streams, with potentially catastrophic implications for community infrastructure, drinking water treatment, public health, and aquatic ecosystem health [...]. [\n] Given the rising threats and costs associated with the current wildfire trend, we must change the way we manage ...

 

Agricultural policy can reduce wildfires

  
Science, Vol. 359, No. 6379. (01 March 2018), pp. 1001.1-1001, https://doi.org/10.1126/science.aat1359

Abstract

[Excerpt] [...] Agriculture is an important driver of European wildfires. It is a major source of fire ignitions [...]. Additionally, farmland abandonment and policies promoting forestry increase fire hazard, as they lead to vegetation growth and fuel build-up in the landscape [...]. However, agriculture is also part of the solution. Agricultural areas, such as crops, orchards, and grasslands, are much less fire-prone, particularly if they include irrigated crops [...]. The European Union's Common Agricultural Policy (CAP) is a powerful financial instrument ...

 

Transparency in authors’ contributions and responsibilities to promote integrity in scientific publication

  
Proceedings of the National Academy of Sciences, Vol. 115, No. 11. (13 February 2018), pp. 2557-2560, https://doi.org/10.1073/pnas.1715374115

Abstract

In keeping with the growing movement in scientific publishing toward transparency in data and methods, we propose changes to journal authorship policies and procedures to provide insight into which author is responsible for which contributions, better assurance that the list is complete, and clearly articulated standards to justify earning authorship credit. To accomplish these goals, we recommend that journals adopt common and transparent standards for authorship, outline responsibilities for corresponding authors, adopt the Contributor Roles Taxonomy (CRediT) (docs.casrai.org/CRediT) methodology for attributing ...

 

Transparent author credit

  
Science, Vol. 359, No. 6379. (01 March 2018), pp. 961-961, https://doi.org/10.1126/science.aat4136

Abstract

Authorship on papers is one of the major currencies of the scientific enterprise. Nevertheless, the contributions of different authors to a given paper have remained relatively opaque. Contributions are generally inferred from the order of authors, and implications of position on the authorship list vary between different investigators and scientific fields. A year ago, a group of editors and publishers across a wide range of disciplines met to discuss how to provide a more systemic solution to make author contributions more ...

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Meta-information Database (INRMM-MiD).
This database integrates a dedicated meta-information database in CiteULike (the CiteULike INRMM Group) with the meta-information available in Google Scholar, CrossRef and DataCite. The Altmetric database with Article-Level Metrics is also harvested. Part of the provided semantic content (machine-readable) is made even human-readable thanks to the DCMI Dublin Core viewer. Digital preservation of the meta-information indexed within the INRMM-MiD publication records is implemented thanks to the Internet Archive.
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INRMM-MiD was experimentally established by the Maieutike Research Initiative in 2008 and then improved with the help of several volunteers (with a major technical upgrade in 2011). This new integrated interface is operational since 2014.