Applicability

适用性
  • 文章类型: Journal Article
    本研究通过创新的电化学调制方法研究了臭氧在不同TiO2晶体界面上的吸附增强。研究的重点是施加的电场强度和反应位点对Ti/锐钛矿TiO2(001)和Ti/金红石TiO2(110)界面的臭氧界面吸附能的影响。结果表明,正电场显着增强了两个界面上的臭氧吸附,Ti/锐钛矿TiO2(001)的吸附能增加高达18%,Ti/金红石TiO2(110)的吸附能增加15%。值得注意的是,双水分子位点(=(H2O)2)在此增强过程中起着至关重要的作用。研究表明,施加的电场改变了TiO2催化界面的电荷分布,从而增加界面电荷密度并促进电荷向臭氧的迁移。此外,这个过程导致了在ε(H2O)2位点与臭氧分子的s和p轨道之间增强的重叠和杂交,导致形成具有较低费米能级的化学键。这些综合结果证明了电化学界面臭氧吸附增强方法在不同晶体类型和表面上的广泛适用性。因此,这项研究提供了必要的数据,以支持更绿色,更节能的多相催化臭氧化过程的发展,可能有助于显著改进基于臭氧的水处理技术。
    This study investigates the enhancement of ozone adsorption on diverse TiO2 crystal interfaces through an innovative electrochemical modulation approach. The research focuses on the effects of applied electric field strength and reaction sites on ozone interfacial adsorption energies for Ti/Anatase TiO2 (0 0 1) and Ti/Rutile TiO2 (1 1 0) interfaces. The findings reveal that positive electric fields significantly enhance ozone adsorption on both interfaces, with adsorption energies increasing by up to 18% for Ti/Anatase TiO2 (0 0 1) and 15% for Ti/Rutile TiO2 (1 1 0). Notably, double water molecule sites (≡(H2O)2) play a crucial role in this enhancement process. The study demonstrates that the applied electric field alters the charge distribution at the TiO2 catalytic interface, thereby increasing interfacial charge density and promoting charge migration to ozone. Furthermore, this process leads to enhanced overlap and hybridization between ≡(H2O)2 sites and the s and p orbitals of ozone molecules, resulting in the formation of chemical bonds with lower Fermi levels. These comprehensive results demonstrate the broad applicability of the electrochemical interfacial ozone adsorption enhancement method across different crystal types and surfaces. Consequently, this study provides essential data to support the advancement of greener and more energy-efficient heterogeneous catalytic ozonation processes, potentially contributing to significant improvements in ozone-based water treatment technologies.
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  • 文章类型: Journal Article
    自2020年以来,REACh法规要求有关纳米材料的毒理学数据,包括对其皮肤致敏特性的评估。小分子皮肤致敏潜力可以通过解决三个关键事件的新方法方法(NAMs)来评估(KE:蛋白质相互作用,树突状细胞的激活,和角质形成细胞的激活)以OECD指南497中描述的定义方法(DA)组合。在本研究中,三个NAM的适用性(DPRA,LuSens,和h-CLAT)对9种材料(由CeO2,BaSO4,TiO2或SiO2和石英组成的8种无机纳米材料(NM)进行了评估。NAM在技术上适用于NM,使用特定的样品制备(NANOGENOTOX分散方案)和方法修改以减少NM与光度和流式细胞仪读数的相互作用。根据OECD指南No.497;两种无机NM被认定为皮肤致敏剂。然而,来自动物研究的数据(对于ZnO,也是人类数据)表明没有皮肤致敏潜力。其余七种测试物质被评估为“不确定”,因为所有无机NM都在DPRA的范围之外,和可达到的测试浓度不够高,根据目前的测试指南的所有三个NAM。使用这些NAM(无机)NM和相关性的结果在一般的三个方面受到挑战:(i)NAM需要修改适用于不溶性,无机物质;(ii)目前的测试指南缺乏足够的浓度指标和NM可达到的最高浓度;和(iii)NM可能不会像有机小分子那样通过相同的分子和细胞关键事件引起皮肤致敏;事实上,T细胞介导的超敏反应可能不是免疫系统对NM的最相关反应。我们得出的结论是,经合组织测试指南采用的NAM目前不适合测试无机NM。
    Since 2020, the REACh regulation requires toxicological data on nanoforms of materials, including the assessment of their skin-sensitizing properties. Small molecules\' skin sensitization potential can be assessed by new approach methodologies (NAMs) addressing three key events (KE: protein interaction, activation of dendritic cells, and activation of keratinocytes) combined in a defined approach (DA) described in the OECD guideline 497. In the present study, the applicability of three NAMs (DPRA, LuSens, and h-CLAT) to nine materials (eight inorganic nanomaterials (NM) consisting of CeO2, BaSO4, TiO2 or SiO2, and quartz) was evaluated. The NAMs were technically applicable to NM using a specific sample preparation (NANOGENOTOX dispersion protocol) and method modifications to reduce interaction of NM with the photometric and flowcytometric read-outs. The results of the three assays were combined according to the defined approach described in the OECD guideline No. 497; two of the inorganic NM were identified as skin sensitizers. However, data from animal studies (for ZnO, also human data) indicate no skin sensitization potential. The remaining seven test substances were assessed as \"inconclusive\" because all inorganic NM were outside the domain of the DPRA, and the achievable test concentrations were not sufficiently high according to the current test guidelines of all three NAMs. The use of these NAMs for (inorganic) NM and the relevance of the results in general are challenged in three ways: (i) NAMs need modification to be applicable to insoluble, inorganic matter; (ii) current test guidelines lack adequate concentration metrics and top concentrations achievable for NM; and (iii) NM may not cause skin sensitization by the same molecular and cellular key events as small organic molecules do; in fact, T-cell-mediated hypersensitivity may not be the most relevant reaction of the immune system to NM. We conclude that the NAMs adopted by OECD test guidelines are currently not a good fit for testing inorganic NM.
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  • 文章类型: Journal Article
    背景:当前研究的目的是评估专家预测的准确性,这是在2009年至2011年之间使用Delphi小组前瞻性研究得出的,该研究涉及芬兰2020年与药物相关的各种主题。
    方法:用于评估预测准确性的材料包括已发布的统计报告,调查结果,官方注册数据,废水分析和官方文件。只要有可能,我们使用多个信息源来确定与预测相关的可能变化.
    结果:在2009年至2011年期间,大多数(但不是全部)专家准确地预测了药物使用的增加。的确,更多的人尝试或使用药物,在废水监测中发现了更多的药物残留。专家们还正确地预测了人口层面对药物使用的批准会增加,但是这种发展相当缓慢。与预测相反,新合成药物的使用没有明显增加。然而,丁丙诺啡的滥用在2010年代增加。在毒品市场,令人惊讶的是,十年来单价稳定。有关毒品法律地位的法例并无改变,正如专家所预见的那样。然而,执法朝着专家预见的方向发展:对用户采取了更宽松的措施。正如专家们所预见的那样,药物护理体制改革有利于在2009年至2011年和2020年之间将心理健康和成瘾护理单位结合起来。
    结论:专家们似乎更容易预见现有趋势的延续,例如,增加药物的使用或扩大药物的批准,而不是预测新精神活性物质(NPS)等不同药物组受欢迎程度的可能变化。即使有了毒品进口和批发将越来越多地落入有组织犯罪领域的预测,这种不良的发展无法阻止。专家的分歧也可以被视为对未来不确定性的宝贵迹象。与毒品相关问题有关的远见至少可以在未来十年内对未来产生相对准确和现实的看法。
    BACKGROUND: The aim of the current study was to assess the accuracy of expert predictions, which were derived using a Delphi panel foresight study between 2009 and 2011, on a variety of drug-related topics in Finland in 2020.
    METHODS: The material used to evaluate the accuracy of the predictions consists of published reports on statistics, survey results, official register data, wastewater analyses and official documents. Whenever possible, we used multiple information sources to ascertain possible changes related to the predictions.
    RESULTS: Between 2009 and 2011, the majority - but not all - of the experts accurately predicted an increase in drug use. Indeed, more people experimented with or used drugs, and more drug residues were found in wastewater monitoring. The experts also correctly predicted an increase in population-level approval of drug use, but this development has been rather slow. Contrary to predictions, there was no marked increase in the use of new synthetic drugs. However, the misuse of buprenorphine increased during the 2010s. In the drug market, unit prices were surprisingly stable over the ten-year period. There were no changes in legislation related to the legal status of drugs, as was foreseen by the experts. However, enforcement moved in the direction foreseen by the experts: more lenient measures have been taken against users. Drug care system reforms favored a combination of mental health and addiction care units between 2009 and 2011, and 2020, as foreseen by the experts.
    CONCLUSIONS: It seems to have been easier for the experts to foresee the continuation of existing trends, e.g., increasing use of drugs or widening approval of drugs, than to predict possible changes in the popularity of distinct groups of drugs such as new psychoactive substances (NPS). Even armed with the prediction that drug imports and wholesale would increasingly fall into the domain of organized crime, this undesirable development could not be stopped. Expert disagreement can also be seen as a valuable indication of uncertainty regarding the future. Foresight related to drug-related issues can produce relatively accurate and realistic views of the future at least up to ten years ahead.
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  • 文章类型: Journal Article
    全球范围内,越来越多的人生活在老年,与年龄相关的脆弱,残疾和多重性。实现所有年龄段的公平需要调整医疗保健系统。临床实践指南(CPG)在适应循证医学和临床护理以反映这些不断变化的需求方面具有重要地位。CPG可以促进对老年人的更好和更系统的护理。但是,当临床和/或社会经济异质性或个人优先事项未反映在建议或应用中时,它们也可能对以患者为中心的护理和共同决策提出挑战。的确,通常缺乏证据来使这种可变性反映在指导中。更有可能缺乏有关某些部分人口的证据。许多老年人处于与排除传统临床证据来源相关的许多因素的交汇点,多发病率和残疾的发生率更高,医疗服务更差,最终结果更差。我们描述了这些挑战,并说明了它们如何对CPG范围产生不利影响,现有证据及其总结,CPG建议的内容及其以患者为中心的实施。在这一切中,我们把老年人作为我们的焦点,但是我们所说的大部分内容将适用于其他边缘化群体。然后,利用制定CPG的既定过程作为框架,我们考虑如何缓解这些挑战,特别注意适用性和实施。我们考虑了为什么在相同临床领域的CPG建议可能不一致,并描述了确保CPG保持最新的方法。
    Globally, more people are living into advanced old age, with age-associated frailty, disability and multimorbidity. Achieving equity for all ages necessitates adapting healthcare systems. Clinical practice guidelines (CPGs) have an important place in adapting evidence-based medicine and clinical care to reflect these changing needs. CPGs can facilitate better and more systematic care for older people. But they can also present a challenge to patient-centred care and shared decision-making when clinical and/or socioeconomic heterogeneity or personal priorities are not reflected in recommendations or in their application. Indeed, evidence is often lacking to enable this variability to be reflected in guidance. Evidence is more likely to be lacking about some sections of the population. Many older adults are at the intersection of many factors associated with exclusion from traditional clinical evidence sources with higher incidence of multimorbidity and disability compounded by poorer healthcare access and ultimately worse outcomes. We describe these challenges and illustrate how they can adversely affect CPG scope, the evidence available and its summation, the content of CPG recommendations and their patient-centred implementation. In all of this, we take older adults as our focus, but much of what we say will be applicable to other marginalised groups. Then, using the established process of formulating a CPG as a framework, we consider how these challenges can be mitigated, with particular attention to applicability and implementation. We consider why CPG recommendations on the same clinical areas may be inconsistent and describe approaches to ensuring that CPGs remain up to date.
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  • 文章类型: Journal Article
    暂无摘要。
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  • 文章类型: Journal Article
    目的:本研究的目的是探讨全科医生对DSM-5成人ADHD自我报告筛查量表(ASRS-5)作为筛查工具的适用性的主观看法。一般实践中成人的注意力缺陷/多动障碍(ADHD)。
    方法:11名全科医生,我们采访了参加德语版ASRS-5验证研究的患者.为此,半结构化面试指南是使用实施研究综合框架(CFIR)设计的。采访是录音的,转录,并根据Kuckartz采用定性内容分析进行分析。
    结果:ASRS-5似乎在一般医学实践中效果良好。但是有证据表明,全科医生缺乏对成年人多动症的了解,并且需要在这一领域进行进一步培训。此外,在ADHD筛查阳性后,后续治疗的可能性不足.
    结论:在一般医学中,在临床疑似病例中引入ASRS-5筛查可能是改善成年ADHD患者治疗的第一步.
    结论:优化成人多动症的管理需要额外的信息和培训举措,以支持早期诊断,尤其是在初级保健环境中,并揭示成人多动症的治疗选择和护理理念。
    OBJECTIVE: The aim of the study was to explore the subjective views of general practitioners on the applicability of the Adult ADHD Self-Report Screening Scale for DSM-5 (ASRS-5) as a screening tool for attention-deficit/hyperactivity disorder (ADHD) in adults in general practice.
    METHODS: Eleven general practitioners, who had participated in the validation study of the German version of the ASRS-5, were interviewed. For this purpose, a semi-structured interview guide was designed using the Consolidated Framework for Implementation Research (CFIR). The interviews were audio-recorded, transcribed, and analyzed using qualitative content analysis according to Kuckartz.
    RESULTS: The ASRS-5 seems to work well in general medical practice. But there is evidence for a lack of knowledge about ADHD in adults among general practitioners and a demand for further training in this area. Moreover, insufficient possibilities for subsequent treatment after a positive ADHD screening were claimed.
    CONCLUSIONS: In general medicine, the introduction of a screening using ASRS-5 in cases of clinical suspicion could be the first step towards improving the management of adult patients with ADHD.
    CONCLUSIONS: Optimizing the management of adults with ADHD requires additional information and training initiatives to support early diagnosis especially in the primary care setting, and to reveal treatment options and care concepts for adults with ADHD.
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  • 文章类型: Journal Article
    The analytical equation based on Monin-Obukhov (M-O) similarity theory (i.e., wind profile equation) has been adopted since 1970s for using in the prediction of wind vertical profile over flat terrains, which is mature and accurate. However, its applicability over complex terrains remains unknown. This applicability signifies the accuracy of the estimations of aerodynamic parameters for the boundary layer of non-flat terrain, such as zero-displacement height (d) and aerodynamic roughness length (z0), which will determine the accuracy of frequency correction and source area analysis in calculating carbon, water, and trace gas fluxes based on vorticity covariance method. Therefore, the validation of wind profile model in non-flat terrain is the first step to test whether the flux model needs improvement. We measured three-dimensional wind speed data by using the Ker Towers (three towers in a watershed) at Qingyuan Forest CERN in the Mountainous Region of east Liaoning Province, and compared them with data from Panjin Agricultural Station in the Liaohe Plain, to evaluate the applicability of a generalized wind profile model based on the Monin-Obukhov similarity theory on non-flat terrain. The results showed that the generalized wind profile model could not predict wind speeds accurately of three flux towers separately located in different sites, indicating that wind profile model was not suitable for predicting wind speeds in complex terrains. In the leaf-off and leaf-on periods, the coefficient of determination (R2) between observed and predicted wind speeds ranged from 0.12 to 0.30. Compared to measured values, the standard error of the predicted wind speeds was high up to 2 m·s-1. The predicted wind speeds were high as twice as field-measured wind speed, indicating substantial overestimation. Nevertheless, this model correctly predicted wind speeds in flat agricultural landscape in Panjin Agricultural Station. The R2 between observed wind speeds and predicted wind speed ranged from 0.90 to 0.93. The standard error between observed and predicted values was only 0.5 m·s-1. Results of the F-test showed that the root-mean-square error of the observed and predicted wind speeds in each secondary forest complex terrain was much greater than that in flat agricultural landscape. Terrain was the primary factor affecting the applicability of wind profile model, followed by seasonality (leaf or leafless canopy). The wind profile model was not applicable to the boundary-layer flows over forest canopies in complex terrains, because the d was underestimated or both the d and z0 were underestimated, resulting in inaccurate estimation of aerodynamic height.
    基于莫宁-奥布霍夫相似理论的解析方程(风速廓线模型)自20世纪70年代以来一直被用于平坦地形上的风速预测,成熟且准确,但在非平坦地形适用性尚不清楚。其适用性标志着对非平坦地形近地层空气动力学参数(如零平面位移高度及粗糙度)估计的准确性,将决定基于涡度协方差法计算碳水及痕量气体通量中频率修正及其源区分析的准确性。因此,风速廓线模型在非平坦地形的适用性评价是确认通量模型是否需要改进的前提。本研究利用辽东山区清原森林站科尔塔群测量三维风速数据,并与辽河平原盘锦农田站同类数据相比较,评估了以莫宁-奥布霍夫相似理论为基础建立的通用风速廓线模型在非平坦地形上的适用性。结果表明: 通用风速廓线模型无法准确预测清原森林站3座通量塔所在地的风速,不适用于复杂地形。在非生长季和生长季,清原森林站3座通量塔实际观测与模型预测风速的决定系数(R2)为0.12~0.30,观测数据与预测值的标准误超过2 m·s-1,模型风速约为实际观测风速的2.0倍,显著高估。然而,该模型可准确预测盘锦农田站平坦农田景观的水平风速,实际观测风速与模型预测之间的R2为0.90~0.93,观测数据与预测值之间的标准误仅为0.5 m·s-1。经F检验指出,非平坦地形风速观测值与预测值的均方根误差远大于平坦地形,其中,地形是影响通用风速廓线模型适用性的主要因素,其次是季节性(无/有叶期)因素。风速廓线模型在非平坦地形上不适用,原因是零平面位移被低估,或零平面位移和粗糙度均被低估,进而使空气动力高度估计不准。.
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  • 文章类型: English Abstract
    The prevention of intimate partner violence (IPV) among young people is a major challenge for public policies. Nevertheless, there are a few prevention programs that have proven effective in France. “Sortir Ensemble & Se Respecter” (SE&SR) is a Swiss adaptation of “Safe Dates,” an American intervention program that has reduced violent behavior by young perpetrators and victims of IPV alike. The aim of this article is to analyze the applicability and “potential transferability” of SE&SR in France.
    We described the SE&SR intervention by explaining the intervention theory, the key functions (i.e., the “ingredients” allowing the SE&SR program to work), and we commented on its applicability from a perspective of adapting and transferring it to the French context. We used the ASTAIRE tool and the FIC (key functions, implementation, context) approach.
    The intervention theory highlighted various factors, acting at the individual level (i.e., beliefs/representations, knowledge, life skills) and at the level of the living environment (i.e., facilities welcoming young people; families; public policies; networks of actors), that can prevent IPV among young people. Ten key functions have been identified, revealing the “skeleton” of the Swiss intervention. We drew on these results to comment on the intervention’s applicability, with a view to transferability, specifying the contextual elements to consider before implementing SE&SR in France.
    This study aims to make the process of evaluating applicability, with a view to transferring an evidence-based program to the French context, more accessible.
    La prévention des violences dans les relations amoureuses (VRA) chez les jeunes est un enjeu fort des politiques publiques. Néanmoins, il existe peu de programmes de prévention ayant fait la preuve de leur efficacité en France. « Sortir Ensemble & Se Respecter » (SE&SR) est une adaptation suisse de « Safe Dates », un programme d’intervention américain qui a montré des résultats en matière de réduction des comportements violents tant du côté des jeunes victimes que des auteurs. L’objectif de cet article est d’analyser l’applicabilité et la « potentielle transférabilité » de SE&SR en France.
    L’approche adoptée consistait à décrire l’intervention SE&SR en explicitant la théorie d’intervention, les fonctions clés (soit les « ingrédients » permettant que le programme SE&SR fonctionne) et en proposant des commentaires d’applicabilité en vue d’une transférabilité adaptée au contexte français. L’outil ASTAIRE et la démarche FIC ont été utilisés.
    La théorie d’intervention a mis en évidence différents facteurs, agissant au niveau individuel (i.e. connaissances, croyances/représentations, compétences psychosociales) et au niveau des milieux de vie (i.e. structures accueillant les jeunes, familles, politiques publiques/réseaux d’acteurs), qui peuvent prévenir les VRA chez les jeunes. Dix fonctions clés ont été identifiées, dégageant le « squelette » de l’intervention suisse. À la suite de ces résultats, des commentaires d’applicabilité en vue d’une transférabilité ont permis de préciser les éléments de contexte à prendre en compte avant la mise en œuvre de SE&SR en France.
    Cette étude souhaite rendre accessibles les process d’applicabilité en vue d’une transférabilité d’un programme probant en contexte français.
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  • 文章类型: Journal Article
    心理学研究人员如何看待科学知识之间的关系,其适用性,和它的社会相关性?大多数关于心理科学及其对社会的好处的研究是从鸟瞰(元科学的观点),通过确定一般趋势,如心理学对实验室实验和一般描述性理论的主要关注。近年来,一些批评家认为,这种关注是以降低实际和社会相关性为代价的。在这项研究中,我们采访了荷兰心理学教授,以评估他们对心理学研究及其与社会的相关性之间关系的看法。我们发现心理学教授从事各种活动,让科学与社会互动,从临床和应用环境的工作,到咨询公司,教育,科学传播。然而,我们发现,在将科学知识应用于实际问题时,理论的作用远非简单明了。虽然大多数参与者认为理论与理解一般应用背景相关,心理学理论很少与具体应用直接相关。根据最近关于心理科学缺乏适用性和社会相关性的讨论,我们比较和讨论了我们的发现。
    How do researchers in psychology view the relation between scientific knowledge, its applicability, and its societal relevance? Most research on psychological science and its benefits to society is discussed from a bird\'s eye view (a meta-scientific perspective), by identifying general trends such as psychology\'s dominant focus on lab-based experiments and general descriptive theories. In recent years, several critics have argued that this focus has come at the cost of reduced practical and societal relevance. In this study, we interviewed Dutch psychology professors to gauge their views about the relation between psychological research and its relevance to society. We found that psychology professors engaged in a variety of activities to engage science with society, from work in clinical and applied settings, to consultancy, education, and science communication. However, we found that the role of theory when applying scientific knowledge to practical problems is far from straightforward. While most participants regarded theories as relevant to understanding general contexts of application, psychological theories were seldom directly related to specific applications. We compare and discuss our findings in the light of recent discussions about the lack of applicability and societal relevance of psychological science.
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  • 文章类型: Journal Article
    尽管已经开发了许多干旱指数来监测干旱状况,它们的适用性在不同的气候区域不同,这导致在不同时间尺度和不同记录长度上的干旱指数评估的不同特征。因此,在这项研究中,使用广义极值指数(GEVI)检查了基于降水和基于降水-蒸散/温度的干旱指数的适用性,降水和温度的均匀性指数(HI),K指数(K),降水异常百分比(Pa),标准化降水蒸散指数(SPEI),标准化降水指数(SPI),和China-Z指数(CZI)在不同的记录长度和1-24个月的时间尺度范围内。此外,将使用这些指数获得的结果与自校准帕尔默干旱严重程度指数(scPDSI)进行比较。的稳定性,准确度,使用1961-2017年期间从中国西北干旱区不同气候区收集的降水和蒸散量/温度数据(1-24个月)评估了不同干旱指数的一致性。结果表明,CZI,K,SPEI更稳定;SPI,SPEI,和HI更准确;和GEVI,SPI,HI,SPEI与scPDSI更为一致。此外,结果表明,在有足够数据的情况下,选择较长的记录长度(>35年)来监测干旱更为合适。然而,定义恒定的干旱类别可能不适用于所有干旱时间尺度。事实上,不同时间尺度的降水和蒸散数据具有不同的最优分布函数。干旱指数还表明,它们适用于研究区域的温带干旱地区。此外,HI和SPEI更好地捕获了降水和蒸散/温度特征,而CZI,K,和Pa在一定程度上高估或低估了研究区域不同时间尺度下不同干旱等级的发生频率。这项研究的结果表明,应优先考虑基于降水-蒸散的指数。此外,建议在未来不同时间尺度的干旱事件识别相关研究中改变干旱指数类别阈值,以确保更准确的干旱监测。
    Although many drought indices have been developed to monitor drought conditions, their applicability differs across climatic regions, which results in different characteristics of drought index assessments at different timescales and over different record lengths. Therefore, the applicability of precipitation-based and precipitation-evapotranspiration/temperature-based drought indices was examined in this study using the Generalized Extreme Value Index (GEVI), Homogeneity Index (HI) of precipitation and temperature, K index (K), precipitation anomaly percentage (Pa), Standardized Precipitation Evapotranspiration Index (SPEI), Standardized Precipitation Index (SPI), and China-Z Index (CZI) over different record lengths and at a timescale range of 1-24 months. In addition, the results that were obtained using these indices were compared with the Self-Calibrating Palmer Drought Severity Index (scPDSI). The stability, accuracy, and consistency of the different drought indices were evaluated using precipitation and evapotranspiration/temperature data (1-24 months) collected from different climatic regions in the arid area of northwest China in the 1961-2017 period. The results indicated that the Pa, CZI, K, and SPEI were more stable; the SPI, SPEI, and HI were more accurate; and the GEVI, SPI, HI, and SPEI were more consistent with the scPDSI. In addition, the results indicated that it is more appropriate to select a long record length (> 35 years) to monitor drought when sufficient data are available. However, defining constant drought classes may not be appropriate for all drought timescales. In fact, precipitation and evapotranspiration data from different timescales had different optimal distribution functions. The drought indices also demonstrated that they were applicable to a temperate arid area in the study region. In addition, the HI and SPEI better captured the precipitation and evapotranspiration/temperature characteristics, while the CZI, K, and Pa overestimated or underestimated the frequency of different drought classes at different timescales to some extent in the study region. The results of this study suggest that greater priority should be given to the precipitation-evapotranspiration-based indices. In addition, it is suggested to change the drought index class thresholds in future related studies on drought event recognition at different timescales to ensure more accurate drought monitoring.
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