Compare NDVI Extracted from Landsat 8 Imagery with that from Landsat 7 Imagery

Dandan Xu; Xulin Guo

doi:doi:10.11648/j.ajrs.20140202.11

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Compare NDVI Extracted from Landsat 8 Imagery with that from Landsat 7 Imagery

Dandan Xu, Xulin Guo

Published in American Journal of Remote Sensing (Volume 2, Issue 2)

Received: 28 August 2014 Accepted: 10 September 2014 Published: 20 September 2014

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Abstract

Landsat 8, the ongoing mission of the Landsat satellites that have provided over 40 years of images, continues to benefit long-term research. However, it is important to know if the spectral features of Landsat 8 are of the same standard as previous Landsat imagery because Landsat 8 images have narrower bands, especially because of the normalized difference vegetation index (NDVI) calculation which is the most popular vegetation index. In this study NDVI values derived from Landsat 8 images were compared with those calculated from Landsat 7 and ground measured hyperspectral data. The result shows that Landsat 8 NDVI is larger than Landsat 7 NDVI in lower vegetation covered areas and the difference becomes smaller as the value of NDVI increases. This indicates that NDVI of Landsat 7 and Landsat 8 is consistent when dealing with high vegetation covered areas (e.g. forest area and tall grass prairie) because the difference between Landsat 7 and 8 NDVI is close to zero when the value of NDVI is high, but this needs to be further investigated. There is also further need for calibration of NDVI in low vegetation covered areas in order to achieve consistency between Landsat 7 and Landsat 8 images.

Published in	American Journal of Remote Sensing (Volume 2, Issue 2)
DOI	10.11648/j.ajrs.20140202.11
Page(s)	10-14
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2014. Published by Science Publishing Group

Keywords

Remote Sensing, Landsat 8, OLI, LDCM, Landsat 7, ETM+, NDVI, ATCOR

References

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APA Style

Dandan Xu, Xulin Guo. (2014). Compare NDVI Extracted from Landsat 8 Imagery with that from Landsat 7 Imagery. American Journal of Remote Sensing, 2(2), 10-14. https://doi.org/10.11648/j.ajrs.20140202.11

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ACS Style

Dandan Xu; Xulin Guo. Compare NDVI Extracted from Landsat 8 Imagery with that from Landsat 7 Imagery. Am. J. Remote Sens. 2014, 2(2), 10-14. doi: 10.11648/j.ajrs.20140202.11

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AMA Style

Dandan Xu, Xulin Guo. Compare NDVI Extracted from Landsat 8 Imagery with that from Landsat 7 Imagery. Am J Remote Sens. 2014;2(2):10-14. doi: 10.11648/j.ajrs.20140202.11

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@article{10.11648/j.ajrs.20140202.11,
  author = {Dandan Xu and Xulin Guo},
  title = {Compare NDVI Extracted from Landsat 8 Imagery with that from Landsat 7 Imagery},
  journal = {American Journal of Remote Sensing},
  volume = {2},
  number = {2},
  pages = {10-14},
  doi = {10.11648/j.ajrs.20140202.11},
  url = {https://doi.org/10.11648/j.ajrs.20140202.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajrs.20140202.11},
  abstract = {Landsat 8, the ongoing mission of the Landsat satellites that have provided over 40 years of images, continues to benefit long-term research. However, it is important to know if the spectral features of Landsat 8 are of the same standard as previous Landsat imagery because Landsat 8 images have narrower bands, especially because of the normalized difference vegetation index (NDVI) calculation which is the most popular vegetation index. In this study NDVI values derived from Landsat 8 images were compared with those calculated from Landsat 7 and ground measured hyperspectral data. The result shows that Landsat 8 NDVI is larger than Landsat 7 NDVI in lower vegetation covered areas and the difference becomes smaller as the value of NDVI increases. This indicates that NDVI of Landsat 7 and Landsat 8 is consistent when dealing with high vegetation covered areas (e.g. forest area and tall grass prairie) because the difference between Landsat 7 and 8 NDVI is close to zero when the value of NDVI is high, but this needs to be further investigated. There is also further need for calibration of NDVI in low vegetation covered areas in order to achieve consistency between Landsat 7 and Landsat 8 images.},
 year = {2014}
}

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TY  - JOUR
T1  - Compare NDVI Extracted from Landsat 8 Imagery with that from Landsat 7 Imagery
AU  - Dandan Xu
AU  - Xulin Guo
Y1  - 2014/09/20
PY  - 2014
N1  - https://doi.org/10.11648/j.ajrs.20140202.11
DO  - 10.11648/j.ajrs.20140202.11
T2  - American Journal of Remote Sensing
JF  - American Journal of Remote Sensing
JO  - American Journal of Remote Sensing
SP  - 10
EP  - 14
PB  - Science Publishing Group
SN  - 2328-580X
UR  - https://doi.org/10.11648/j.ajrs.20140202.11
AB  - Landsat 8, the ongoing mission of the Landsat satellites that have provided over 40 years of images, continues to benefit long-term research. However, it is important to know if the spectral features of Landsat 8 are of the same standard as previous Landsat imagery because Landsat 8 images have narrower bands, especially because of the normalized difference vegetation index (NDVI) calculation which is the most popular vegetation index. In this study NDVI values derived from Landsat 8 images were compared with those calculated from Landsat 7 and ground measured hyperspectral data. The result shows that Landsat 8 NDVI is larger than Landsat 7 NDVI in lower vegetation covered areas and the difference becomes smaller as the value of NDVI increases. This indicates that NDVI of Landsat 7 and Landsat 8 is consistent when dealing with high vegetation covered areas (e.g. forest area and tall grass prairie) because the difference between Landsat 7 and 8 NDVI is close to zero when the value of NDVI is high, but this needs to be further investigated. There is also further need for calibration of NDVI in low vegetation covered areas in order to achieve consistency between Landsat 7 and Landsat 8 images.
VL  - 2
IS  - 2
ER  -

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Author Information

Dandan Xu

Department of Geography and Planning, University of Saskatchewan, Saskatoon, Canada
Xulin Guo

Department of Geography and Planning, University of Saskatchewan, Saskatoon, Canada

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Plain Text BibTeX RIS

APA Style

Dandan Xu, Xulin Guo. (2014). Compare NDVI Extracted from Landsat 8 Imagery with that from Landsat 7 Imagery. American Journal of Remote Sensing, 2(2), 10-14. https://doi.org/10.11648/j.ajrs.20140202.11

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ACS Style

Dandan Xu; Xulin Guo. Compare NDVI Extracted from Landsat 8 Imagery with that from Landsat 7 Imagery. Am. J. Remote Sens. 2014, 2(2), 10-14. doi: 10.11648/j.ajrs.20140202.11

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AMA Style

Dandan Xu, Xulin Guo. Compare NDVI Extracted from Landsat 8 Imagery with that from Landsat 7 Imagery. Am J Remote Sens. 2014;2(2):10-14. doi: 10.11648/j.ajrs.20140202.11

Copy | Download

@article{10.11648/j.ajrs.20140202.11,
  author = {Dandan Xu and Xulin Guo},
  title = {Compare NDVI Extracted from Landsat 8 Imagery with that from Landsat 7 Imagery},
  journal = {American Journal of Remote Sensing},
  volume = {2},
  number = {2},
  pages = {10-14},
  doi = {10.11648/j.ajrs.20140202.11},
  url = {https://doi.org/10.11648/j.ajrs.20140202.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajrs.20140202.11},
  abstract = {Landsat 8, the ongoing mission of the Landsat satellites that have provided over 40 years of images, continues to benefit long-term research. However, it is important to know if the spectral features of Landsat 8 are of the same standard as previous Landsat imagery because Landsat 8 images have narrower bands, especially because of the normalized difference vegetation index (NDVI) calculation which is the most popular vegetation index. In this study NDVI values derived from Landsat 8 images were compared with those calculated from Landsat 7 and ground measured hyperspectral data. The result shows that Landsat 8 NDVI is larger than Landsat 7 NDVI in lower vegetation covered areas and the difference becomes smaller as the value of NDVI increases. This indicates that NDVI of Landsat 7 and Landsat 8 is consistent when dealing with high vegetation covered areas (e.g. forest area and tall grass prairie) because the difference between Landsat 7 and 8 NDVI is close to zero when the value of NDVI is high, but this needs to be further investigated. There is also further need for calibration of NDVI in low vegetation covered areas in order to achieve consistency between Landsat 7 and Landsat 8 images.},
 year = {2014}
}

Copy | Download

TY  - JOUR
T1  - Compare NDVI Extracted from Landsat 8 Imagery with that from Landsat 7 Imagery
AU  - Dandan Xu
AU  - Xulin Guo
Y1  - 2014/09/20
PY  - 2014
N1  - https://doi.org/10.11648/j.ajrs.20140202.11
DO  - 10.11648/j.ajrs.20140202.11
T2  - American Journal of Remote Sensing
JF  - American Journal of Remote Sensing
JO  - American Journal of Remote Sensing
SP  - 10
EP  - 14
PB  - Science Publishing Group
SN  - 2328-580X
UR  - https://doi.org/10.11648/j.ajrs.20140202.11
AB  - Landsat 8, the ongoing mission of the Landsat satellites that have provided over 40 years of images, continues to benefit long-term research. However, it is important to know if the spectral features of Landsat 8 are of the same standard as previous Landsat imagery because Landsat 8 images have narrower bands, especially because of the normalized difference vegetation index (NDVI) calculation which is the most popular vegetation index. In this study NDVI values derived from Landsat 8 images were compared with those calculated from Landsat 7 and ground measured hyperspectral data. The result shows that Landsat 8 NDVI is larger than Landsat 7 NDVI in lower vegetation covered areas and the difference becomes smaller as the value of NDVI increases. This indicates that NDVI of Landsat 7 and Landsat 8 is consistent when dealing with high vegetation covered areas (e.g. forest area and tall grass prairie) because the difference between Landsat 7 and 8 NDVI is close to zero when the value of NDVI is high, but this needs to be further investigated. There is also further need for calibration of NDVI in low vegetation covered areas in order to achieve consistency between Landsat 7 and Landsat 8 images.
VL  - 2
IS  - 2
ER  -

Copy | Download