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231225s2018 xx |||||o 00| ||eng c |
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|a 10.1080/01431161.2017.1395970
|2 doi
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|a eng
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1 |
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|a Skakun, Sergii
|e verfasserin
|4 aut
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|a Transitioning from MODIS to VIIRS
|b an analysis of inter-consistency of NDVI data sets for agricultural monitoring
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|c 2018
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Revised 18.03.2024
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a The Visible/Infrared Imager/Radiometer Suite (VIIRS) aboard the Suomi National Polar-orbiting Partnership (S-NPP) satellite was launched in 2011, in part to provide continuity with the Moderate Resolution Imaging Spectroradiometer (MODIS) instrument aboard National Aeronautics and Space Administration's (NASA) Terra and Aqua remote sensing satellites. The VIIRS will eventually replace MODIS for both land science and applications and add to the coarse-resolution, long term data record. It is, therefore, important to provide the user community with an assessment of the consistency of equivalent products from the two sensors. For this study, we do this in the context of example agricultural monitoring applications. Surface reflectance that is routinely delivered within the M{O,Y}D09 and VNP09 series of products provide critical input for generating downstream products. Given the range of applications utilizing the normalized difference vegetation index (NDVI) generated from M{O,Y}D09 and VNP09 products and the inherent differences between MODIS and VIIRS sensors in calibration, spatial sampling, and spectral bands, the main objective of this study is to quantify uncertainties related the transitioning from using MODIS to VIIRS-based NDVI's. In particular, we compare NDVI's derived from two sets of Level 3 MYD09 and VNP09 products with various spatial-temporal characteristics, namely 8-day composites at 500 m spatial resolution and daily Climate Modelling Grid (CMG) images at 0.05° spatial resolution. Spectral adjustment of VIIRS I1 (red) and I2 (near infra-red - NIR) bands to match MODIS/Aqua b1 (red) and b2 (NIR) bands is performed to remove a bias between MODIS and VIIRS-based red, NIR, and NDVI estimates. Overall, red reflectance, NIR reflectance, NDVI uncertainties were 0.014, 0.029 and 0.056 respectively for the 500 m product and 0.013, 0.016 and 0.032 for the 0.05° product. The study shows that MODIS and VIIRS NDVI data can be used interchangeably for applications with an uncertainty of less than 0.02 to 0.05, depending on the scale of spatial aggregation, which is typically the uncertainty of the individual dataset
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|a Journal Article
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|a MODIS
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|a NDVI
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|a S-NPP VIIRS
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|a agriculture
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|a inter-comparison
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|a Justice, Christopher O
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Vermote, Eric
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Roger, Jean-Claude
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t International journal of remote sensing
|d 1985
|g 39(2018), 4 vom: 11., Seite 971-992
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|x 0143-1161
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| 773 |
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|g volume:39
|g year:2018
|g number:4
|g day:11
|g pages:971-992
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|u http://dx.doi.org/10.1080/01431161.2017.1395970
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