Error and correction for MODIS-AM's spatial response on the NDVI and EVI science products

Francisco Rojas; Robert A. Schowengerdt; Stuart F. Biggar

doi:10.1117/12.451865

Error and correction for MODIS-AM's spatial response on the NDVI and EVI science products

Francisco Rojas, Robert A. Schowengerdt, Stuart F. Biggar

Optical Sciences

Research output: Contribution to journal › Conference article › peer-review

4 Scopus citations

Abstract

The accuracy of the Moderate Resolution Imaging Spectroradiometer (MODIS) end data products, such as the Vegetation Indices (VIs), are affected by MODIS's Spatial Response (SR). An error analysis is presented for the VI (MOD-13) product using Point Spread Response (PSR) data and improvement using a correction filter is demonstrated. The PSR data is a set of laboratory measurements that include electronic/optical cross-talk (pre- August 1998). The ensquared energy concept is applied to the PSR data to determine upper limits for the Far Field Response (FFR) (unwanted noise) that may be present in the MODIS data. The error analysis is presented using spectral variation, Normalized Difference Vegetation Index (NDVI) and Enhanced Vegetation Index (EVI) which demonstrate that the science products are dependent on the sensor's SR. A correction filter for the MODIS SR shows a qualitative and quantitative improvement using a scene Railroad Valley scene, June 14^th 2001 in which Landsat 7 ETM+ is used as the reference.

Original language	English (US)
Pages (from-to)	447-456
Number of pages	10
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	4814
DOIs	https://doi.org/10.1117/12.451865
State	Published - 2002
Event	Earth Observing Systems VII - Seattle, WA, United States Duration: Jul 7 2002 → Jul 10 2002

Keywords

EVI
Error analysis
Image registration
MTF correction
NDVI
Spatial Response

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

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10.1117/12.451865

Cite this

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title = "Error and correction for MODIS-AM's spatial response on the NDVI and EVI science products",

abstract = "The accuracy of the Moderate Resolution Imaging Spectroradiometer (MODIS) end data products, such as the Vegetation Indices (VIs), are affected by MODIS's Spatial Response (SR). An error analysis is presented for the VI (MOD-13) product using Point Spread Response (PSR) data and improvement using a correction filter is demonstrated. The PSR data is a set of laboratory measurements that include electronic/optical cross-talk (pre- August 1998). The ensquared energy concept is applied to the PSR data to determine upper limits for the Far Field Response (FFR) (unwanted noise) that may be present in the MODIS data. The error analysis is presented using spectral variation, Normalized Difference Vegetation Index (NDVI) and Enhanced Vegetation Index (EVI) which demonstrate that the science products are dependent on the sensor's SR. A correction filter for the MODIS SR shows a qualitative and quantitative improvement using a scene Railroad Valley scene, June 14th 2001 in which Landsat 7 ETM+ is used as the reference.",

keywords = "EVI, Error analysis, Image registration, MTF correction, NDVI, Spatial Response",

author = "Francisco Rojas and Schowengerdt, {Robert A.} and Biggar, {Stuart F.}",

year = "2002",

doi = "10.1117/12.451865",

language = "English (US)",

volume = "4814",

pages = "447--456",

journal = "Proceedings of SPIE - The International Society for Optical Engineering",

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publisher = "SPIE",

note = "Earth Observing Systems VII ; Conference date: 07-07-2002 Through 10-07-2002",

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TY - JOUR

T1 - Error and correction for MODIS-AM's spatial response on the NDVI and EVI science products

AU - Rojas, Francisco

AU - Schowengerdt, Robert A.

AU - Biggar, Stuart F.

PY - 2002

Y1 - 2002

N2 - The accuracy of the Moderate Resolution Imaging Spectroradiometer (MODIS) end data products, such as the Vegetation Indices (VIs), are affected by MODIS's Spatial Response (SR). An error analysis is presented for the VI (MOD-13) product using Point Spread Response (PSR) data and improvement using a correction filter is demonstrated. The PSR data is a set of laboratory measurements that include electronic/optical cross-talk (pre- August 1998). The ensquared energy concept is applied to the PSR data to determine upper limits for the Far Field Response (FFR) (unwanted noise) that may be present in the MODIS data. The error analysis is presented using spectral variation, Normalized Difference Vegetation Index (NDVI) and Enhanced Vegetation Index (EVI) which demonstrate that the science products are dependent on the sensor's SR. A correction filter for the MODIS SR shows a qualitative and quantitative improvement using a scene Railroad Valley scene, June 14th 2001 in which Landsat 7 ETM+ is used as the reference.

AB - The accuracy of the Moderate Resolution Imaging Spectroradiometer (MODIS) end data products, such as the Vegetation Indices (VIs), are affected by MODIS's Spatial Response (SR). An error analysis is presented for the VI (MOD-13) product using Point Spread Response (PSR) data and improvement using a correction filter is demonstrated. The PSR data is a set of laboratory measurements that include electronic/optical cross-talk (pre- August 1998). The ensquared energy concept is applied to the PSR data to determine upper limits for the Far Field Response (FFR) (unwanted noise) that may be present in the MODIS data. The error analysis is presented using spectral variation, Normalized Difference Vegetation Index (NDVI) and Enhanced Vegetation Index (EVI) which demonstrate that the science products are dependent on the sensor's SR. A correction filter for the MODIS SR shows a qualitative and quantitative improvement using a scene Railroad Valley scene, June 14th 2001 in which Landsat 7 ETM+ is used as the reference.

KW - EVI

KW - Error analysis

KW - Image registration

KW - MTF correction

KW - NDVI

KW - Spatial Response

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DO - 10.1117/12.451865

M3 - Conference article

AN - SCOPUS:0036454850

SN - 0277-786X

VL - 4814

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EP - 456

JO - Proceedings of SPIE - The International Society for Optical Engineering

JF - Proceedings of SPIE - The International Society for Optical Engineering

T2 - Earth Observing Systems VII

Y2 - 7 July 2002 through 10 July 2002

ER -

Error and correction for MODIS-AM's spatial response on the NDVI and EVI science products

Abstract

Keywords

ASJC Scopus subject areas

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