Nonparametric detection of cloudy pixels in a VHRR NDVI data

Valentine G. Anantharaj; Nicolas H. Younan; Roger L. King

Nonparametric detection of cloudy pixels in a VHRR NDVI data

Valentine G. Anantharaj, Nicolas H. Younan, Roger L. King

Mississippi State University

Research output: Contribution to conference › Paper › peer-review

2 Scopus citations

Abstract

Two non-parametric detectors, based on the Sign Test and the Wilcoxon Signed Rank Test, were applied to 10-day composites of Normalized Difference Vegetation Index (NDVI) data to detect cloud contaminated pixels. The performances of these detectors were found to be no better than a detector based on randomly chosen thresholds. The detector thresholds need to account for the climatologically induced biases in the data for each region and time period every year.

Original language	English
Pages	1037-1040
Number of pages	4
State	Published - 2004
Externally published	Yes
Event	2004 IEEE International Geoscience and Remote Sensing Symposium Proceedings: Science for Society: Exploring and Managing a Changing Planet. IGARSS 2004 - Anchorage, AK, United States Duration: Sep 20 2004 → Sep 24 2004

Conference

Conference	2004 IEEE International Geoscience and Remote Sensing Symposium Proceedings: Science for Society: Exploring and Managing a Changing Planet. IGARSS 2004
Country/Territory	United States
City	Anchorage, AK
Period	09/20/04 → 09/24/04

Keywords

AVHRR
Clouds
NDVI
Nonparameteric detection
Signed rank
Vegetation
Wilcoxon

Cite this

@conference{d54dfa92294943c29efd7a57717adde4,

title = "Nonparametric detection of cloudy pixels in a VHRR NDVI data",

abstract = "Two non-parametric detectors, based on the Sign Test and the Wilcoxon Signed Rank Test, were applied to 10-day composites of Normalized Difference Vegetation Index (NDVI) data to detect cloud contaminated pixels. The performances of these detectors were found to be no better than a detector based on randomly chosen thresholds. The detector thresholds need to account for the climatologically induced biases in the data for each region and time period every year.",

keywords = "AVHRR, Clouds, NDVI, Nonparameteric detection, Signed rank, Vegetation, Wilcoxon",

author = "Anantharaj, {Valentine G.} and Younan, {Nicolas H.} and King, {Roger L.}",

year = "2004",

language = "English",

pages = "1037--1040",

note = "2004 IEEE International Geoscience and Remote Sensing Symposium Proceedings: Science for Society: Exploring and Managing a Changing Planet. IGARSS 2004 ; Conference date: 20-09-2004 Through 24-09-2004",

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Nonparametric detection of cloudy pixels in a VHRR NDVI data. / Anantharaj, Valentine G.; Younan, Nicolas H.; King, Roger L.
2004. 1037-1040 Paper presented at 2004 IEEE International Geoscience and Remote Sensing Symposium Proceedings: Science for Society: Exploring and Managing a Changing Planet. IGARSS 2004, Anchorage, AK, United States.

Research output: Contribution to conference › Paper › peer-review

TY - CONF

T1 - Nonparametric detection of cloudy pixels in a VHRR NDVI data

AU - Anantharaj, Valentine G.

AU - Younan, Nicolas H.

AU - King, Roger L.

PY - 2004

Y1 - 2004

N2 - Two non-parametric detectors, based on the Sign Test and the Wilcoxon Signed Rank Test, were applied to 10-day composites of Normalized Difference Vegetation Index (NDVI) data to detect cloud contaminated pixels. The performances of these detectors were found to be no better than a detector based on randomly chosen thresholds. The detector thresholds need to account for the climatologically induced biases in the data for each region and time period every year.

AB - Two non-parametric detectors, based on the Sign Test and the Wilcoxon Signed Rank Test, were applied to 10-day composites of Normalized Difference Vegetation Index (NDVI) data to detect cloud contaminated pixels. The performances of these detectors were found to be no better than a detector based on randomly chosen thresholds. The detector thresholds need to account for the climatologically induced biases in the data for each region and time period every year.

KW - AVHRR

KW - Clouds

KW - NDVI

KW - Nonparameteric detection

KW - Signed rank

KW - Vegetation

KW - Wilcoxon

UR - http://www.scopus.com/inward/record.url?scp=15944416189&partnerID=8YFLogxK

M3 - Paper

AN - SCOPUS:15944416189

SP - 1037

EP - 1040

T2 - 2004 IEEE International Geoscience and Remote Sensing Symposium Proceedings: Science for Society: Exploring and Managing a Changing Planet. IGARSS 2004

Y2 - 20 September 2004 through 24 September 2004

ER -

Nonparametric detection of cloudy pixels in a VHRR NDVI data

Abstract

Conference

Keywords

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