THE INFLUENCE OF SPATIAL RESOLUTION ON THE RETRIEVAL OF CLUMPING INDEX BASED ON POLDER AND MODIS DATA

Siyang Yin; Ziti Jiao; Xiaoning Zhang; Lei Cui; Rui Xie; Jing Guo; Zidong Zhu; Sijie Li; Yadong Dong; Yidong Tong

doi:10.1109/IGARSS47720.2021.9553813

THE INFLUENCE OF SPATIAL RESOLUTION ON THE RETRIEVAL OF CLUMPING INDEX BASED ON POLDER AND MODIS DATA

Siyang Yin, Ziti Jiao^*, Xiaoning Zhang, Lei Cui, Rui Xie, Jing Guo, Zidong Zhu, Sijie Li, Yadong Dong, Yidong Tong

^*Corresponding author for this work

Beijing Normal University

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

Clumping Index (CI) is an important vegetation structure parameter, which describes the grouping of leaves relative to the random distribution. Multi-angle data of the POLarization and Directionality of Earth Reflectance (POLDER) sensor (about 6×7 km) and the MODerate resolution Imaging Spectradiometer (MODIS) (500 m) are two main sources for global CI products. To better understand the variability inherent in CIs of such different spatial resolutions and optimize the used of CI products, extensive POLDER CIs and corresponding MODIS CIs were retrieved and compared in this study. Field measurements were conduct in one selected POLDER pixel in Hebei, China. Our results showed that POLDER and MODIS CIs presented relative good consistency (R²=0.65, RMSE=0.07, bias=0.003), and the correlation coefficient can reach 0.98 at the class level. Both POLDER CI (0.67) and MODIS CI (0.62±0.06) showed good consistency with field CIs (0.64±0.10) and POLDER CI was more likely to overestimate than MODIS CI.

Original language	English
Title of host publication	IGARSS 2021 - 2021 IEEE International Geoscience and Remote Sensing Symposium, Proceedings
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	6754-6756
Number of pages	3
ISBN (Electronic)	9781665403696
DOIs	https://doi.org/10.1109/IGARSS47720.2021.9553813
Publication status	Published - 2021
Externally published	Yes
Event	2021 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2021 - Brussels, Belgium Duration: 12 Jul 2021 → 16 Jul 2021

Publication series

Name	International Geoscience and Remote Sensing Symposium (IGARSS)
Volume	2021-July

Conference

Conference	2021 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2021
Country/Territory	Belgium
City	Brussels
Period	12/07/21 → 16/07/21

Keywords

Clumping index
MODIS
POLDER
Scale effect

Access to Document

10.1109/IGARSS47720.2021.9553813

Cite this

Yin, S., Jiao, Z., Zhang, X., Cui, L., Xie, R., Guo, J., Zhu, Z., Li, S., Dong, Y., & Tong, Y. (2021). THE INFLUENCE OF SPATIAL RESOLUTION ON THE RETRIEVAL OF CLUMPING INDEX BASED ON POLDER AND MODIS DATA. In IGARSS 2021 - 2021 IEEE International Geoscience and Remote Sensing Symposium, Proceedings (pp. 6754-6756). (International Geoscience and Remote Sensing Symposium (IGARSS); Vol. 2021-July). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/IGARSS47720.2021.9553813

Yin, Siyang ; Jiao, Ziti ; Zhang, Xiaoning et al. / THE INFLUENCE OF SPATIAL RESOLUTION ON THE RETRIEVAL OF CLUMPING INDEX BASED ON POLDER AND MODIS DATA. IGARSS 2021 - 2021 IEEE International Geoscience and Remote Sensing Symposium, Proceedings. Institute of Electrical and Electronics Engineers Inc., 2021. pp. 6754-6756 (International Geoscience and Remote Sensing Symposium (IGARSS)).

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title = "THE INFLUENCE OF SPATIAL RESOLUTION ON THE RETRIEVAL OF CLUMPING INDEX BASED ON POLDER AND MODIS DATA",

abstract = "Clumping Index (CI) is an important vegetation structure parameter, which describes the grouping of leaves relative to the random distribution. Multi-angle data of the POLarization and Directionality of Earth Reflectance (POLDER) sensor (about 6×7 km) and the MODerate resolution Imaging Spectradiometer (MODIS) (500 m) are two main sources for global CI products. To better understand the variability inherent in CIs of such different spatial resolutions and optimize the used of CI products, extensive POLDER CIs and corresponding MODIS CIs were retrieved and compared in this study. Field measurements were conduct in one selected POLDER pixel in Hebei, China. Our results showed that POLDER and MODIS CIs presented relative good consistency (R2=0.65, RMSE=0.07, bias=0.003), and the correlation coefficient can reach 0.98 at the class level. Both POLDER CI (0.67) and MODIS CI (0.62±0.06) showed good consistency with field CIs (0.64±0.10) and POLDER CI was more likely to overestimate than MODIS CI.",

keywords = "Clumping index, MODIS, POLDER, Scale effect",

author = "Siyang Yin and Ziti Jiao and Xiaoning Zhang and Lei Cui and Rui Xie and Jing Guo and Zidong Zhu and Sijie Li and Yadong Dong and Yidong Tong",

note = "Publisher Copyright: {\textcopyright} 2021 IEEE; 2021 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2021 ; Conference date: 12-07-2021 Through 16-07-2021",

year = "2021",

doi = "10.1109/IGARSS47720.2021.9553813",

language = "English",

series = "International Geoscience and Remote Sensing Symposium (IGARSS)",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

pages = "6754--6756",

booktitle = "IGARSS 2021 - 2021 IEEE International Geoscience and Remote Sensing Symposium, Proceedings",

address = "United States",

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Yin, S, Jiao, Z, Zhang, X, Cui, L, Xie, R, Guo, J, Zhu, Z, Li, S, Dong, Y & Tong, Y 2021, THE INFLUENCE OF SPATIAL RESOLUTION ON THE RETRIEVAL OF CLUMPING INDEX BASED ON POLDER AND MODIS DATA. in IGARSS 2021 - 2021 IEEE International Geoscience and Remote Sensing Symposium, Proceedings. International Geoscience and Remote Sensing Symposium (IGARSS), vol. 2021-July, Institute of Electrical and Electronics Engineers Inc., pp. 6754-6756, 2021 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2021, Brussels, Belgium, 12/07/21. https://doi.org/10.1109/IGARSS47720.2021.9553813

THE INFLUENCE OF SPATIAL RESOLUTION ON THE RETRIEVAL OF CLUMPING INDEX BASED ON POLDER AND MODIS DATA. / Yin, Siyang; Jiao, Ziti; Zhang, Xiaoning et al.
IGARSS 2021 - 2021 IEEE International Geoscience and Remote Sensing Symposium, Proceedings. Institute of Electrical and Electronics Engineers Inc., 2021. p. 6754-6756 (International Geoscience and Remote Sensing Symposium (IGARSS); Vol. 2021-July).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - THE INFLUENCE OF SPATIAL RESOLUTION ON THE RETRIEVAL OF CLUMPING INDEX BASED ON POLDER AND MODIS DATA

AU - Yin, Siyang

AU - Jiao, Ziti

AU - Zhang, Xiaoning

AU - Cui, Lei

AU - Xie, Rui

AU - Guo, Jing

AU - Zhu, Zidong

AU - Li, Sijie

AU - Dong, Yadong

AU - Tong, Yidong

PY - 2021

Y1 - 2021

N2 - Clumping Index (CI) is an important vegetation structure parameter, which describes the grouping of leaves relative to the random distribution. Multi-angle data of the POLarization and Directionality of Earth Reflectance (POLDER) sensor (about 6×7 km) and the MODerate resolution Imaging Spectradiometer (MODIS) (500 m) are two main sources for global CI products. To better understand the variability inherent in CIs of such different spatial resolutions and optimize the used of CI products, extensive POLDER CIs and corresponding MODIS CIs were retrieved and compared in this study. Field measurements were conduct in one selected POLDER pixel in Hebei, China. Our results showed that POLDER and MODIS CIs presented relative good consistency (R2=0.65, RMSE=0.07, bias=0.003), and the correlation coefficient can reach 0.98 at the class level. Both POLDER CI (0.67) and MODIS CI (0.62±0.06) showed good consistency with field CIs (0.64±0.10) and POLDER CI was more likely to overestimate than MODIS CI.

AB - Clumping Index (CI) is an important vegetation structure parameter, which describes the grouping of leaves relative to the random distribution. Multi-angle data of the POLarization and Directionality of Earth Reflectance (POLDER) sensor (about 6×7 km) and the MODerate resolution Imaging Spectradiometer (MODIS) (500 m) are two main sources for global CI products. To better understand the variability inherent in CIs of such different spatial resolutions and optimize the used of CI products, extensive POLDER CIs and corresponding MODIS CIs were retrieved and compared in this study. Field measurements were conduct in one selected POLDER pixel in Hebei, China. Our results showed that POLDER and MODIS CIs presented relative good consistency (R2=0.65, RMSE=0.07, bias=0.003), and the correlation coefficient can reach 0.98 at the class level. Both POLDER CI (0.67) and MODIS CI (0.62±0.06) showed good consistency with field CIs (0.64±0.10) and POLDER CI was more likely to overestimate than MODIS CI.

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KW - Scale effect

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U2 - 10.1109/IGARSS47720.2021.9553813

DO - 10.1109/IGARSS47720.2021.9553813

M3 - Conference contribution

AN - SCOPUS:85126017345

T3 - International Geoscience and Remote Sensing Symposium (IGARSS)

SP - 6754

EP - 6756

BT - IGARSS 2021 - 2021 IEEE International Geoscience and Remote Sensing Symposium, Proceedings

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Yin S, Jiao Z, Zhang X, Cui L, Xie R, Guo J et al. THE INFLUENCE OF SPATIAL RESOLUTION ON THE RETRIEVAL OF CLUMPING INDEX BASED ON POLDER AND MODIS DATA. In IGARSS 2021 - 2021 IEEE International Geoscience and Remote Sensing Symposium, Proceedings. Institute of Electrical and Electronics Engineers Inc. 2021. p. 6754-6756. (International Geoscience and Remote Sensing Symposium (IGARSS)). doi: 10.1109/IGARSS47720.2021.9553813

THE INFLUENCE OF SPATIAL RESOLUTION ON THE RETRIEVAL OF CLUMPING INDEX BASED ON POLDER AND MODIS DATA

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