Trend and change-point analyses of meteorological variables using Mann–Kendall family tests and innovative trend assessment techniques in New Bhupania command (India)

IF 4.6 Q2 MATERIALS SCIENCE, BIOMATERIALS

ACS Applied Bio Materials Pub Date : 2024-04-25 DOI:10.2166/wcc.2024.462

Venkatesh Gaddikeri, A. Sarangi, D. K. Singh, Malkhan Singh Jatav, Jitendra Rajput, N. L. Kushwaha

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引用次数: 0

Abstract

Climate change (CC) significantly influences agricultural water productivity, necessitating increased irrigation. Therefore, the present study was undertaken to assess the trend and change-point analyses of weather variables such as temperature (T), rainfall (R), and reference evapotranspiration (ET0) using 31-year long-term data for semi-arid climate. The analysis was carried out employing Mann–Kendall (MK), Modified Mann–Kendall (MMK), Innovative Trend Analysis (ITA), and Innovative Polygon Trend Analysis (IPTA) methods. Homogeneity tests, including Pettitt's test, Standard Normal Homogeneity Test (SNHT) , Buishand range test, and Von Neumann Ratio Test (VNRT), were employed to detect change points (CPs) in the time series data. The results indicated that, for maximum temperature, MK and MMK revealed a positive trend for September and July, respectively, while minimum temperatures indicated increasing trends in August and September. Rainfall exhibited an increasing trend during the Zaid season (April–May). ET0 exhibited a negative trend in January. ITA and IPTA displayed a mixture of positive and negative trends across months and seasons. The change-point analysis revealed that for Tmax, the CP occurred in 1998 for time-series data for the month of April. Likewise, for Tmin, the change points for April and August time series were found in 1997.

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利用曼-肯德尔族检验和创新趋势评估技术对新布帕尼亚指挥部（印度）的气象变量进行趋势和变化点分析

气候变化（CC）极大地影响了农业用水生产率，因此必须增加灌溉。因此，本研究利用半干旱气候的 31 年长期数据，对气温（T）、降雨量（R）和参考蒸散量（ET0）等天气变量的趋势和变化点分析进行了评估。分析采用了曼-肯德尔（MK）、修正曼-肯德尔（MMK）、创新趋势分析（ITA）和创新多边形趋势分析（IPTA）方法。为检测时间序列数据中的变化点（CPs），采用了同质性检验，包括佩蒂特检验、标准正态同质性检验（SNHT）、布瓦山德范围检验和冯-诺依曼比率检验（VNRT）。结果表明，就最高气温而言，MK 和 MMK 分别在 9 月和 7 月显示出正趋势，而最低气温在 8 月和 9 月显示出上升趋势。降雨量在扎伊德季节（4 月至 5 月）呈上升趋势。ET0 在 1 月份呈负趋势。ITA和IPTA在不同月份和季节呈现正负混合趋势。变化点分析表明，就 Tmax 而言，4 月份时间序列数据的 CP 出现在 1998 年。同样，就 Tmin 而言，4 月和 8 月时间序列的变化点出现在 1997 年。

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来源期刊

ACS Applied Bio Materials Chemistry-Chemistry (all)

CiteScore

9.40

自引率

2.10%

发文量

464

期刊介绍： ACS Applied Bio Materials is an interdisciplinary journal publishing original research covering all aspects of biomaterials and biointerfaces including and beyond the traditional biosensing, biomedical and therapeutic applications. The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrates knowledge in the areas of materials, engineering, physics, bioscience, and chemistry into important bio applications. The journal is specifically interested in work that addresses the relationship between structure and function and assesses the stability and degradation of materials under relevant environmental and biological conditions.