Grassland Monitoring Based on Geobotanical, Ground, Spectrometric, and Satellite Data

IF 0.9 4区地球科学 Q4 METEOROLOGY & ATMOSPHERIC SCIENCES

Izvestiya Atmospheric and Oceanic Physics Pub Date : 2024-01-31 DOI:10.1134/s0001433823090050

I. Yu. Botvich, N. A. Kononova, D. V. Emelyanov, T. I. Pisman

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引用次数: 0

Abstract

This study assesses the possibility of grassland monitoring based on various spectral vegetation indices (NDVI, ClGreen, NDRE, and NDMI) calculated according to Sentinel-2 satellite data during the 2018 growing season. Geobotanical studies and the collection of ground-based spectrophotometry data were carried out simultaneously, at the same time of day, and were used as an additional stage of monitoring haymaking. It was possible to identify grasslands and determine the date of mowing based on ground and satellite spectrometric data. A drop in the indices (NDVI, clGreen, NDRE, and NDMI) was observed on the date of mowing (July 25, 2018). The possibility of grassland interpretation based on the NDVI index was proven reliable. It was shown that the dates of mowing, determined according to satellite data, were in good agreement with the ground dates of mowing (July 25 and August 27). The spatial distribution maps of the NDVI index of grasslands according to Sentinel-2 satellite data for certain dates (June 18, July 10, and August 27) were drawn. The resulting maps make it possible to identify grasslands and mowing dates in large areas.

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基于地理植物学、地面、光谱和卫星数据的草原监测

摘要本研究评估了在 2018 年生长季节根据哨兵-2 号卫星数据计算的各种光谱植被指数（NDVI、ClGreen、NDRE 和 NDMI）进行草原监测的可能性。地理植物学研究和地面分光光度计数据收集在一天中的同一时间同时进行，并被用作监测干草种植的附加阶段。根据地面和卫星分光光度数据，可以识别草地并确定割草日期。在刈割日期（2018 年 7 月 25 日）观察到指数（NDVI、clGreen、NDRE 和 NDMI）下降。根据 NDVI 指数解释草原的可能性被证明是可靠的。结果表明，根据卫星数据确定的割草日期与地面割草日期（7 月 25 日和 8 月 27 日）十分吻合。根据哨兵-2 卫星数据绘制了特定日期（6 月 18 日、7 月 10 日和 8 月 27 日）的草地 NDVI 指数空间分布图。由此绘制的地图可以确定大面积草地和割草日期。

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来源期刊

Izvestiya Atmospheric and Oceanic Physics 地学-海洋学

CiteScore

1.40

自引率

28.60%

发文量

审稿时长

6-12 weeks

期刊介绍： Izvestiya, Atmospheric and Oceanic Physics is a journal that publishes original scientific research and review articles on vital issues in the physics of the Earth’s atmosphere and hydrosphere and climate theory. The journal presents results of recent studies of physical processes in the atmosphere and ocean that control climate, weather, and their changes. These studies have possible practical applications. The journal also gives room to the discussion of results obtained in theoretical and experimental studies in various fields of oceanic and atmospheric physics, such as the dynamics of gas and water media, interaction of the atmosphere with the ocean and land surfaces, turbulence theory, heat balance and radiation processes, remote sensing and optics of both media, natural and man-induced climate changes, and the state of the atmosphere and ocean. The journal publishes papers on research techniques used in both media, current scientific information on domestic and foreign events in the physics of the atmosphere and ocean.