Evaluation of modis C6 combined aerosol product at global scale

Muhammad Bilal; Zhongfeng Qiu

doi:10.1109/IGARSS.2018.8519350

Evaluation of modis C6 combined aerosol product at global scale

Muhammad Bilal
, Zhongfeng Qiu

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

4 Scopus citations

Abstract

In this study, the MODIS Collection (C6) combined Dark Target (DT) and Deep Blue (DB) aerosol products (DTBC6) at 10 km spatial resolution was validated against AERONET AOD obtained from 68 sites at global scale from 2004.2014 over different vegetated surfaces, i.e., partially.vegetated (NDVI_P ≤ 0.3), moderately.vegetated (0.3 NDVI_M ≤ 0.5) and densely.vegetated surfaces (NDVID < 0.5) defined by monthly NDVI values obtained from the MOD13A3 product. For comparison purposes, AOD was obtained from the combined DTBSMS product which was developed based on the Simplified Merged Scheme (SMS), i.e., using an average of the DT and DB highest quality AOD retrievals or the available one. Results showed that the number of coincident observations of the DTBSMS increased from 6121 (DTBC6) to 10055 for NDVIP surfaces, from 13371 (DTBC6) to 21438 for NDVI_M surfaces, and from 9410 (DTBC6) to 14415 for NDVI_D surfaces. The percentage of retrievals within the Expected Error (EE = ± (0.05 + 0.15~AOD) increased by 13. 15% and RMB decreased by 31.58%. Overall, the DTBSMS is robust and performed much better than the DTBC6 in terms of spatiotemporal coverage and data quality, and can be used operationally for generation of the merged DT and DB AOD product at global scale.

Original language	English
Title of host publication	2018 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2018 - Proceedings
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	9126-9129
Number of pages	4
ISBN (Electronic)	9781538671504
DOIs	https://doi.org/10.1109/IGARSS.2018.8519350
State	Published - 31 Oct 2018
Externally published	Yes
Event	38th Annual IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2018 - Valencia, Spain Duration: 22 Jul 2018 → 27 Jul 2018

Publication series

Name	International Geoscience and Remote Sensing Symposium (IGARSS)
Volume	2018-July

Conference

Conference	38th Annual IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2018
Country/Territory	Spain
City	Valencia
Period	22/07/18 → 27/07/18

Bibliographical note

Publisher Copyright:
© 2018 IEEE.

Keywords

AERONET
AOD
DB
DT
MODIS
SMS

ASJC Scopus subject areas

Computer Science Applications
General Earth and Planetary Sciences

Access to Document

10.1109/IGARSS.2018.8519350

Cite this

Bilal, M., & Qiu, Z. (2018). Evaluation of modis C6 combined aerosol product at global scale. In 2018 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2018 - Proceedings (pp. 9126-9129). Article 8519350 (International Geoscience and Remote Sensing Symposium (IGARSS); Vol. 2018-July). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/IGARSS.2018.8519350

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title = "Evaluation of modis C6 combined aerosol product at global scale",

abstract = "In this study, the MODIS Collection (C6) combined Dark Target (DT) and Deep Blue (DB) aerosol products (DTBC6) at 10 km spatial resolution was validated against AERONET AOD obtained from 68 sites at global scale from 2004.2014 over different vegetated surfaces, i.e., partially.vegetated (NDVIP ≤ 0.3), moderately.vegetated (0.3 NDVIM ≤ 0.5) and densely.vegetated surfaces (NDVID < 0.5) defined by monthly NDVI values obtained from the MOD13A3 product. For comparison purposes, AOD was obtained from the combined DTBSMS product which was developed based on the Simplified Merged Scheme (SMS), i.e., using an average of the DT and DB highest quality AOD retrievals or the available one. Results showed that the number of coincident observations of the DTBSMS increased from 6121 (DTBC6) to 10055 for NDVIP surfaces, from 13371 (DTBC6) to 21438 for NDVIM surfaces, and from 9410 (DTBC6) to 14415 for NDVID surfaces. The percentage of retrievals within the Expected Error (EE = ± (0.05 + 0.15\textasciitilde{}AOD) increased by 13. 15\% and RMB decreased by 31.58\%. Overall, the DTBSMS is robust and performed much better than the DTBC6 in terms of spatiotemporal coverage and data quality, and can be used operationally for generation of the merged DT and DB AOD product at global scale.",

keywords = "AERONET, AOD, DB, DT, MODIS, SMS",

author = "Muhammad Bilal and Zhongfeng Qiu",

note = "Publisher Copyright: {\textcopyright} 2018 IEEE.; 38th Annual IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2018 ; Conference date: 22-07-2018 Through 27-07-2018",

year = "2018",

month = oct,

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doi = "10.1109/IGARSS.2018.8519350",

language = "English",

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

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Bilal, M & Qiu, Z 2018, Evaluation of modis C6 combined aerosol product at global scale. in 2018 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2018 - Proceedings., 8519350, International Geoscience and Remote Sensing Symposium (IGARSS), vol. 2018-July, Institute of Electrical and Electronics Engineers Inc., pp. 9126-9129, 38th Annual IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2018, Valencia, Spain, 22/07/18. https://doi.org/10.1109/IGARSS.2018.8519350

Evaluation of modis C6 combined aerosol product at global scale. / Bilal, Muhammad; Qiu, Zhongfeng.
2018 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2018 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2018. p. 9126-9129 8519350 (International Geoscience and Remote Sensing Symposium (IGARSS); Vol. 2018-July).

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

TY - GEN

T1 - Evaluation of modis C6 combined aerosol product at global scale

AU - Bilal, Muhammad

AU - Qiu, Zhongfeng

PY - 2018/10/31

Y1 - 2018/10/31

N2 - In this study, the MODIS Collection (C6) combined Dark Target (DT) and Deep Blue (DB) aerosol products (DTBC6) at 10 km spatial resolution was validated against AERONET AOD obtained from 68 sites at global scale from 2004.2014 over different vegetated surfaces, i.e., partially.vegetated (NDVIP ≤ 0.3), moderately.vegetated (0.3 NDVIM ≤ 0.5) and densely.vegetated surfaces (NDVID < 0.5) defined by monthly NDVI values obtained from the MOD13A3 product. For comparison purposes, AOD was obtained from the combined DTBSMS product which was developed based on the Simplified Merged Scheme (SMS), i.e., using an average of the DT and DB highest quality AOD retrievals or the available one. Results showed that the number of coincident observations of the DTBSMS increased from 6121 (DTBC6) to 10055 for NDVIP surfaces, from 13371 (DTBC6) to 21438 for NDVIM surfaces, and from 9410 (DTBC6) to 14415 for NDVID surfaces. The percentage of retrievals within the Expected Error (EE = ± (0.05 + 0.15~AOD) increased by 13. 15% and RMB decreased by 31.58%. Overall, the DTBSMS is robust and performed much better than the DTBC6 in terms of spatiotemporal coverage and data quality, and can be used operationally for generation of the merged DT and DB AOD product at global scale.

AB - In this study, the MODIS Collection (C6) combined Dark Target (DT) and Deep Blue (DB) aerosol products (DTBC6) at 10 km spatial resolution was validated against AERONET AOD obtained from 68 sites at global scale from 2004.2014 over different vegetated surfaces, i.e., partially.vegetated (NDVIP ≤ 0.3), moderately.vegetated (0.3 NDVIM ≤ 0.5) and densely.vegetated surfaces (NDVID < 0.5) defined by monthly NDVI values obtained from the MOD13A3 product. For comparison purposes, AOD was obtained from the combined DTBSMS product which was developed based on the Simplified Merged Scheme (SMS), i.e., using an average of the DT and DB highest quality AOD retrievals or the available one. Results showed that the number of coincident observations of the DTBSMS increased from 6121 (DTBC6) to 10055 for NDVIP surfaces, from 13371 (DTBC6) to 21438 for NDVIM surfaces, and from 9410 (DTBC6) to 14415 for NDVID surfaces. The percentage of retrievals within the Expected Error (EE = ± (0.05 + 0.15~AOD) increased by 13. 15% and RMB decreased by 31.58%. Overall, the DTBSMS is robust and performed much better than the DTBC6 in terms of spatiotemporal coverage and data quality, and can be used operationally for generation of the merged DT and DB AOD product at global scale.

KW - AERONET

KW - AOD

KW - DB

KW - DT

KW - MODIS

KW - SMS

UR - https://www.scopus.com/pages/publications/85064152894

U2 - 10.1109/IGARSS.2018.8519350

DO - 10.1109/IGARSS.2018.8519350

M3 - Conference contribution

AN - SCOPUS:85064152894

T3 - International Geoscience and Remote Sensing Symposium (IGARSS)

SP - 9126

EP - 9129

BT - 2018 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2018 - Proceedings

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 38th Annual IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2018

Y2 - 22 July 2018 through 27 July 2018

ER -

Evaluation of modis C6 combined aerosol product at global scale

Abstract

Publication series

Conference

Bibliographical note

Keywords

ASJC Scopus subject areas

Access to Document

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Cite this