Results 271 to 280 of about 59,716 (313)

การประมาณค่าผลผลิตของข้าวโพดเลี้ยงสัตว์ด้วยภาพถ่ายทางอากาศร่วมกับดัชนีพืชพรรณ NDVI

2023
Journal of Applied Research on Science and Technology (JARST), 22, 1, 27 ...
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Global correlation analysis for NDVI and climatic variables and NDVI trends: 1982-1990

International Journal of Remote Sensing, 2002
The relationship between the Normalized Difference Vegetation Index (NDVI) and climatic variables was analysed on a global scale using the Pathfinder AVHRR Land NDVI data set, and observed climate data for the period 1982-1990. A significant correlation between interannual NDVI and temperature variation was recognized in the northern mid- to high ...
K. Ichii, A. Kawabata, Y. Yamaguchi
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Sensor intercalibration - adjustment of MODIS-NDVI-to NOAA-AVHRR-NDVI data

IEEE International IEEE International IEEE International Geoscience and Remote Sensing Symposium, 2004. IGARSS '04. Proceedings. 2004, 2004
The Normalized Difference Vegetation Index (NDVI) is the most often used vegetation index to study environmental change. Usually, NOAA-Advanced Very High Resolution Radiometer (AVHRR)-data are used to calculate the NDVI, because these data are available for more than 20 years. Today, data with an improved quality like the one of EOS-Moderate Resolution
Jonas Franke, Gunter Menz
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Temporal variations of NDVI and correlations between NDVI and hydro-climatological variables at Lake Baiyangdian, China

International Journal of Biometeorology, 2013
In this paper, correlations between vegetation dynamics (represented by the normalized difference vegetation index (NDVI)) and hydro-climatological factors were systematically studied in Lake Baiyangdian during the period from April 1998 to July 2008. Six hydro-climatological variables including lake volume, water level, air temperature, precipitation,
Fei, Wang, Xuan, Wang, Ying, Zhao, Zhifeng, Yang   +3 more
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[Performance evaluation of GIMMS NDVI based on MODIS NDVI and SPOT NDVI data].

Ying yong sheng tai xue bao = The journal of applied ecology, 2019
The study evaluated GIMMS NDVI based on MODIS NDVI and SPOT NDVI over the same period from 2000 to 2015. We assessed their absolute values, dynamics, trends and cross-relationships between any two of the NDVIs for the national scale, as well as four separate land use types, i.e., paddy field, dry land, forest, and grassland.
Yi Xuan, Zhu, Yang Jian, Zhang, Jia Xing, Zu, Bin, Che, Ze, Tang, Nan, Cong, Jun Xiang, Li, Ning, Chen   +7 more
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Calculation of NDVI in mountainous areas

IGARSS 2001. Scanning the Present and Resolving the Future. Proceedings. IEEE 2001 International Geoscience and Remote Sensing Symposium (Cat. No.01CH37217), 2002
A method to calculate NVDI from mountain area remote sensing data is presented in this paper. This method is based on the illumination correction on topographically distorted satellite images. In order to evaluate the performance of this method, a test site study was done on Landsat TM data. The result demonstrates the effectiveness of this method.
null Feng Chen, K.-I. Muramoto, M. Kubo
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Spatial-Temporal Changes of Vegetation Restoration in Yan'an Based on MODIS NDVI and Landsat NDVI

2019 IEEE International Conference on Signal, Information and Data Processing (ICSIDP), 2019
In order to investigate the features of surface vegetation change in Yan'an during later stage of the Grain for Green Project (GGP), and to study the vegetation restoration since the construction of north area of Yan'an new area. This study, based on MODIS-NDVI, aims to analyze the spatial-temporal trend changes of vegetation coverage in Yan'an.
Zihui Zhi, Hao Yin, Na Lu, Xinxin Zhang, Kun Yu, Xu Guo, Hao Qi   +6 more
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A comparison of NDVI intercalibration methods

International Journal of Remote Sensing, 2017
ABSTRACTSensor differences pose a challenge when using normalized difference vegetation index (NDVI) data calculated from different sensors. Determining an optimal intercalibration strategy is critical whenever a long-term comparison of NDVI record is required.
Xingwang Fan, Yuanbo Liu
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