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arXiv 2304.07464physics.ao-phmath.DS
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季节性陆地表面温度(LST)的非整数维度

Non-Integer Dimension of Seasonal Land Surface Temperature (LST)

Sepideh Azizi, Tahmineh Azizi

AI总结:

本文利用NASA Terra卫星MODIS数据,通过非线性方法研究美国堪萨斯州赖利县不同季节陆地表面温度的分形结构,结果表明LST属于具有非整数维度的分形过程。

摘要:

在过去几年中,气候变化——包括归因于人类活动的全球变暖及其对地球功能的长期不利影响——已被确定为最具挑战性的讨论议题,引发了诸多关切以及寻找可能解决方案的努力。由于地球地表所产生的热量会影响全球天气和气候模式,我们决定通过非线性方法研究不同季节中陆地表面温度(LST)模式的变化。在此,我们特别希望估计陆地表面温度的非整数维度和分形结构。本研究使用的LST数据是在白天由NASA Terra卫星上的中分辨率成像光谱仪(MODIS)获取的。根据数据采集时间处于一年中的不同时期,温度会在不同范围内变化。由于赤道地区保持温暖,南极洲和格陵兰岛保持寒冷,并且海拔也会影响温度,我们选择了美国堪萨斯州的赖利县,该县不属于上述任何一类地点,我们感兴趣的是观察该县温度的季节性变化。本研究的结果表明,陆地表面温度(LST)属于具有非整数维度的分形过程类别。

英文摘要:

During few last years, climate change including global warming which is attributed to human activities and also its long-term adverse effects on the planet's functions have been identified as the most challenging discussion topics which have arisen many concerns and efforts to find the possible solutions. Since the warmth arising from Earth's landscapes affects the world's weather and climate patterns, we decided to study the changes in the Land Surface Temperature (LST) patterns in different seasons through non-linear methods. Here, we particularly want to estimate the non-integer dimension and fractal structure of the land surface temperature. For this study, the (LST) data has been obtained during the daytime by the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA's Terra satellite. Depending on what time of the year data has been collected, temperatures change in different ranges. Since equatorial regions remain warm, and Antarctica and Greenland remain cold, and also because altitude affects temperature, we selected Riley County in the U.S. state of Kansas, which does not belong to any of this type locations and we are interested to observe the seasonal changes in temperature in this county. The results of the present study show that the Land Surface Temperature (LST) belongs to the class of fractal process with non-integer dimension.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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