Results 121 to 130 of about 25,560 (168)

[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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Compositing the Minimum NDVI for MODIS Data

IEEE Transactions on Geoscience and Remote Sensing, 2017
The maximum and minimum normalized difference vegetation indexes (NDVIs) describe two extremes of vegetation greenness during a predefined period. A maximum NDVI image can be composited easily via the direct selection of the maximum NDVI from multiple observations without the need to mask out cloud or snow.
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On the relationship between FAPAR and NDVI

Remote Sensing of Environment, 1994
Abstract The influence of pixel heterogeneity, background, atmospheric and bidirectional effects on the relationship between fraction of photosynthetically active radiation absorbed by the photosynthesizing tissue in a canopy (FAPAR) and normalized difference vegetation index (NDVI) is investigated using a three-dimensional model of radiation ...
R.B. Myneni, D.L. Williams
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Recommendations for Future Application of NDVI

2015
As discussed in the Introduction, both the UNCCD and the GEF use land cover to monitor land degradation. The UNCCD progress indicators (formerly known as impact indicators) should show progress made in achieving long-term benefits for people living in areas affected by desertification, land degradation, and drought, for affected ecosystems, and for the
Genesis T. Yengoh, David Dent, Lennart Olsson, Anna E. Tengberg, Compton J. Tucker   +4 more
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Assessment of land degradation in Guizhou Province, Southwest China using AVHRR/NDVI and MODIS/NDVI data

2010 18th International Conference on Geoinformatics, 2010
Monitoring and assessing land degradation is important to local sustainable development in Guizhou province, Southwest China, where limestone distributed about 61.7 %. Using the 1 km Advanced Very High Resolution Radiometer Normalized Difference Vegetation Index (AVHRR/NDVI) data (1992–1993) and 500 m, Moderate Resolution Imaging Spectroradiometer ...
Qiuhao Huang, Manchun Li 0004, Chong Chen 0008, Kun Mao, Zhenjie Chen, Feixue Li, Dong Chen 0007   +6 more
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Agreement assessment of NOAA/AVHRR NDVI with Landsat TM NDVI for mapping burned forested areas

International Journal of Remote Sensing, 2002
Meteorological satellites are appropriate for operational applications related to early warning, monitoring and damage assessment of forest fires. Environmental or resources satellites, with better spatial resolution than meteorological satellites, enable the delineation of the affected areas with a higher degree of accuracy.
C. Domenikiotis, N. R. Dalezios, A. Loukas, M. Karteris   +3 more
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Angular normalisation of PROBA-V 300m NDVI

2017 9th International Workshop on the Analysis of Multitemporal Remote Sensing Images (MultiTemp), 2017
This contribution describes an ongoing effort, within the framework of the Copernicus Global Land Service 1, to develop an updated PROBA-V 300m NDVI product. Unlike previous versions of the PROBA-V NDVI at 300m, a normalisation for viewing and illumination geometry is performed and its temporal compositing strategy is aimed to maintain near real ...
Jonathan León-Tavares, Else Swinnen, Bruno Smets, Jean-Louis Roujean   +3 more
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