利用MODIS产品对Tomé-Açu（东亚马逊）植被覆盖时空分布的气象影响

Q4 Social Sciences

Anuario do Instituto de Geociencias Pub Date : 2023-05-17 DOI:10.11137/1982-3908_2023_46_53630

M. L. Rua, G. S. T. Fernandes, A. Dos Santos, Mateus Augusto De Carvalho Santana, Marcos Vinicius Santos Pantoja, Keila Beatriz Silva Teixeira

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引用次数: 0

摘要

本研究的目的是分析亚马逊东部Tomé-Açu微区植被覆盖的季节性行为及其对气象要素变化的响应。研究区域指的是位于帕拉的Tomé-Açu的微观区域。在Google Earth Engine和QGIS 3.18.1软件上对MODIS传感器图像进行处理和分析，应用NDVI、EVI和LAI植被指数。结果表明，Tomé-Açu微区的植被覆盖具有明确的季节性，全年植被指数变化明显。这三个指标在旱季表现出较高的值，在雨季表现出较低的值。植被覆盖的季节性与该地区的降雨量呈正相关，观测前4至5个月的降雨量值较高。

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Meteorological Influence on Space-time Distribution of Tomé-Açu (Eastern Amazon) Vegetation Cover using MODIS Products

The objective of this study was to analyze the seasonal behavior of vegetation cover and its response to the variation of meteorological elements in the microregion of Tomé-Açu, Eastern Amazon. The study area refers to the microregion of Tomé-Açu, Pará. MODIS sensor images were processed and analyzed on Google Earth Engine and QGIS 3.18.1 software to apply the NDVI, EVI and LAI vegetation indices. Results showed that the vegetation cover of the Microregion of Tomé-Açu has well-defined seasonality, with evident variation in vegetation indices throughout the year. The three indexes showed higher values in the dry season period and lower values in the rainy period of the year. Seasonality of vegetation cover showed a positive correlation with rainfall in the region, with higher values associated with rainfall occurring between 4 and 5 months prior to the observation.

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来源期刊

Anuario do Instituto de Geociencias Social Sciences-Geography, Planning and Development

CiteScore

0.70

自引率

0.00%

发文量

审稿时长

28 weeks

期刊介绍： The Anuário do Instituto de Geociências (Anuário IGEO) is an official publication of the Universidade Federal do Rio de Janeiro (UFRJ – CCMN) with the objective to publish original scientific papers of broad interest in the field of Geology, Paleontology, Geography and Meteorology.