0000000000292320

AUTHOR

Lun Li

showing 4 related works from this author

Weakening of annual temperature cycle over the Tibetan Plateau since the 1870s

2017

The annual cycle of extra-tropical surface air temperature is an important component of the Earth's climate system. Over the past decades, a reduced amplitude of this mode has been observed in some regions. Although attributed to anthropogenic forcing, it remains unclear when dampening of the annual cycle started. Here we use a residual series of tree-ring width and maximum latewood density from the Tibetan Plateau >4,000 m asl to reconstruct changes in temperature seasonality over the past three centuries. The new proxy evidence suggests that the onset of a decrease in summer-to-winter temperature difference over the Tibetan Plateau occurred in the 1870s. Our results imply that the influen…

Multidisciplinary010504 meteorology & atmospheric sciencesMeteorologyScienceQClimate systemGeneral Physics and AstronomyGeneral Chemistry500 ScienceSeasonality010502 geochemistry & geophysicsmedicine.diseaseAnnual cycle01 natural sciencesGeneral Biochemistry Genetics and Molecular BiologyArticleSurface air temperatureClimatologymedicineEnvironmental scienceEcosystemTemperature difference0105 earth and related environmental sciencesNature Communications
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The Global Research Collaboration of Network Meta-Analysis: A Social Network Analysis

2016

et al.

Comparative Effectiveness ResearchSocial Scienceslcsh:MedicineCochrane LibraryGeographical locationsMathematical and Statistical Techniques0302 clinical medicineSociologyMedicine and Health SciencesCentrality030212 general & internal medicineHealth Systems Strengtheninglcsh:ScienceSocial network analysisMultidisciplinaryResearch Assessment3. Good healthProfessionsSystematic reviewSocial NetworksResearch Design030220 oncology & carcinogenesisMeta-analysisPhysical SciencesNetwork AnalysisStatistics (Mathematics)Research ArticleComputer and Information SciencesCanadaSystematic ReviewsClinical Research DesignMEDLINELibrary scienceResearch and Analysis Methods03 medical and health sciencesPolitical scienceStatistical MethodsChinaProductivityHealth Care Policylcsh:RHealth CareRankingPeople and PlacesNorth AmericaScientistsPopulation Groupingslcsh:QMathematicsMeta-AnalysisPLOS ONE
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Epidemiology and Reporting Characteristics of Systematic Reviews of Biomedical Research: A Cross-Sectional Study.

2016

Background Systematic reviews (SRs) can help decision makers interpret the deluge of published biomedical literature. However, a SR may be of limited use if the methods used to conduct the SR are flawed, and reporting of the SR is incomplete. To our knowledge, since 2004 there has been no cross-sectional study of the prevalence, focus, and completeness of reporting of SRs across different specialties. Therefore, the aim of our study was to investigate the epidemiological and reporting characteristics of a more recent cross-section of SRs. Methods and Findings We searched MEDLINE to identify potentially eligible SRs indexed during the month of February 2014. Citations were screened using pre…

Research designmedicine.medical_specialtyBiomedical ResearchSystematic ReviewsCross-sectional studyMEDLINEResearch and Analysis Methods03 medical and health sciencesDatabase and Informatics Methods0302 clinical medicineMathematical and Statistical TechniquesConDuCT-IIEpidemiologyparasitic diseasesmedicineMedicine and Health SciencesHumansMedical physics030212 general & internal medicineDatabase SearchingStatistical Methods/dk/atira/pure/core/keywords/conduct_iiStatistical DataHealth Care Policybusiness.industryRGeneral MedicinePublication biasResearch Assessment3. Good healthHealth CareReview Literature as TopicSystematic reviewCross-Sectional StudiesData extractionResearch DesignMeta-analysisPhysical SciencesResearch Reporting GuidelinesMedicinebusinessEpidemiologic Methods030217 neurology & neurosurgeryMathematicsStatistics (Mathematics)Screening GuidelinesResearch ArticleMeta-AnalysisPLoS medicine
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Summer Cooling Driven by Large Volcanic Eruptions over the Tibetan Plateau

2018

Large volcanic eruptions may cause abrupt summer cooling over large parts of the globe. However, no comparable imprint has been found on the Tibetan Plateau (TP). Here, we introduce a 400-yr-long temperature-sensitive network of 17 tree-ring maximum latewood density sites from the TP that demonstrates that the effects of tropical eruptions on the TP are generally greater than those of extratropical eruptions. Moreover, we found that large tropical eruptions accompanied by subsequent El Niño events caused less summer cooling than those that occurred without El Niño association. Superposed epoch analysis (SEA) based on 27 events, including 14 tropical eruptions and 13 extratropical eruptions,…

Atmospheric SciencegeographyPlateaugeography.geographical_feature_category010504 meteorology & atmospheric sciencesVolcanoClimatology010502 geochemistry & geophysics01 natural sciencesGeology0105 earth and related environmental sciencesJournal of Climate
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