Distance-Based Vegetation Indices Computed by Saga GIS: A Comparison of the Perpendicular and Transformed Soil Adjusted Approaches for the Landsat TM Image
International audience Landsat-TM of 2001 covering Iceland (15.5°W-21°W, 64.5°N-67°N) was processed using SAGA GIS for testing distance-based Vegetation Indices (VIs): four approaches of Perpendicular Vegetation Index (PVI) and two approaches of Transformed Soil Adjusted Vegetation Index TSAVI. The...
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Online Access: | https://doi.org/10.5937/PoljTeh2103049L https://hal.archives-ouvertes.fr/hal-03344552/file/PT_03-2021_Lemenkova_49_60.pdf https://hal.archives-ouvertes.fr/hal-03344552 |
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fttriple:oai:gotriple.eu:10670/1.s2mes3 2023-05-15T16:48:42+02:00 Distance-Based Vegetation Indices Computed by Saga GIS: A Comparison of the Perpendicular and Transformed Soil Adjusted Approaches for the Landsat TM Image Lemenkova, Polina Schmidt United Institute of Physics of the Earth Moscow (IPE) Russian Academy of Sciences Moscow (RAS) 2021-09-15 https://doi.org/10.5937/PoljTeh2103049L https://hal.archives-ouvertes.fr/hal-03344552/file/PT_03-2021_Lemenkova_49_60.pdf https://hal.archives-ouvertes.fr/hal-03344552 en eng HAL CCSD University of Belgrade, Faculty of Agriculture hal-03344552 doi:10.5937/PoljTeh2103049L 10670/1.s2mes3 https://hal.archives-ouvertes.fr/hal-03344552/file/PT_03-2021_Lemenkova_49_60.pdf https://hal.archives-ouvertes.fr/hal-03344552 lic_creative-commons other Hyper Article en Ligne - Sciences de l'Homme et de la Société ISSN: 0554-5587 Poljoprivredna Tehnika Poljoprivredna Tehnika, University of Belgrade, Faculty of Agriculture, 2021, 46 (3), pp.49-60. ⟨10.5937/PoljTeh2103049L⟩ SAGA GIS landsat TM cartography Vegetation Index PVI TSAVI agriculture mapping iceland environment geo envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2021 fttriple https://doi.org/10.5937/PoljTeh2103049L 2023-01-22T18:47:38Z International audience Landsat-TM of 2001 covering Iceland (15.5°W-21°W, 64.5°N-67°N) was processed using SAGA GIS for testing distance-based Vegetation Indices (VIs): four approaches of Perpendicular Vegetation Index (PVI) and two approaches of Transformed Soil Adjusted Vegetation Index TSAVI. The PVI of vegetation from the soil background line indicated healthiness as a leaf area index (LAI). The results showed that the reflectance for vegetation has a linear relation with soil background line. Four PVI models and two TSAVI shown coefficients of determination with LAI. The dataset demonstrate variations in the calculated coefficients. The mode in the histograms of the PVI based on four different algorithms show the difference:-7.1,-8.36, 2.78 and 7.0. The dataset for the two approaches of TSAVI: first case ranges in 4.4.-80.6 with a bellshape mode of a histogram (8.09 to 23.29) for the first algorithm and an irregular shape for the second algorithm with several modes starting from 0.11 to 0.2 and decreasing to 0.26. SAGA GIS permits the calculation of PVI and TSAVI by computed NDVI based on the intersection of vegetation and soil background. Masking the NIR and R, a linear regression of grids was performed using an equation embedded in SAGA GIS. The advantages of the distance-based PVI and TSAVI consists in the adjusted position of pixels on the soil brightness line which refines it comparing to the slope-based VIs. The paper demonstrates SAGA GIS application in agricultural studies. Article in Journal/Newspaper Iceland Unknown Poljoprivredna tehnika 46 3 49 60 |
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Open Polar |
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Unknown |
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language |
English |
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SAGA GIS landsat TM cartography Vegetation Index PVI TSAVI agriculture mapping iceland environment geo envir |
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SAGA GIS landsat TM cartography Vegetation Index PVI TSAVI agriculture mapping iceland environment geo envir Lemenkova, Polina Distance-Based Vegetation Indices Computed by Saga GIS: A Comparison of the Perpendicular and Transformed Soil Adjusted Approaches for the Landsat TM Image |
topic_facet |
SAGA GIS landsat TM cartography Vegetation Index PVI TSAVI agriculture mapping iceland environment geo envir |
description |
International audience Landsat-TM of 2001 covering Iceland (15.5°W-21°W, 64.5°N-67°N) was processed using SAGA GIS for testing distance-based Vegetation Indices (VIs): four approaches of Perpendicular Vegetation Index (PVI) and two approaches of Transformed Soil Adjusted Vegetation Index TSAVI. The PVI of vegetation from the soil background line indicated healthiness as a leaf area index (LAI). The results showed that the reflectance for vegetation has a linear relation with soil background line. Four PVI models and two TSAVI shown coefficients of determination with LAI. The dataset demonstrate variations in the calculated coefficients. The mode in the histograms of the PVI based on four different algorithms show the difference:-7.1,-8.36, 2.78 and 7.0. The dataset for the two approaches of TSAVI: first case ranges in 4.4.-80.6 with a bellshape mode of a histogram (8.09 to 23.29) for the first algorithm and an irregular shape for the second algorithm with several modes starting from 0.11 to 0.2 and decreasing to 0.26. SAGA GIS permits the calculation of PVI and TSAVI by computed NDVI based on the intersection of vegetation and soil background. Masking the NIR and R, a linear regression of grids was performed using an equation embedded in SAGA GIS. The advantages of the distance-based PVI and TSAVI consists in the adjusted position of pixels on the soil brightness line which refines it comparing to the slope-based VIs. The paper demonstrates SAGA GIS application in agricultural studies. |
author2 |
Schmidt United Institute of Physics of the Earth Moscow (IPE) Russian Academy of Sciences Moscow (RAS) |
format |
Article in Journal/Newspaper |
author |
Lemenkova, Polina |
author_facet |
Lemenkova, Polina |
author_sort |
Lemenkova, Polina |
title |
Distance-Based Vegetation Indices Computed by Saga GIS: A Comparison of the Perpendicular and Transformed Soil Adjusted Approaches for the Landsat TM Image |
title_short |
Distance-Based Vegetation Indices Computed by Saga GIS: A Comparison of the Perpendicular and Transformed Soil Adjusted Approaches for the Landsat TM Image |
title_full |
Distance-Based Vegetation Indices Computed by Saga GIS: A Comparison of the Perpendicular and Transformed Soil Adjusted Approaches for the Landsat TM Image |
title_fullStr |
Distance-Based Vegetation Indices Computed by Saga GIS: A Comparison of the Perpendicular and Transformed Soil Adjusted Approaches for the Landsat TM Image |
title_full_unstemmed |
Distance-Based Vegetation Indices Computed by Saga GIS: A Comparison of the Perpendicular and Transformed Soil Adjusted Approaches for the Landsat TM Image |
title_sort |
distance-based vegetation indices computed by saga gis: a comparison of the perpendicular and transformed soil adjusted approaches for the landsat tm image |
publisher |
HAL CCSD |
publishDate |
2021 |
url |
https://doi.org/10.5937/PoljTeh2103049L https://hal.archives-ouvertes.fr/hal-03344552/file/PT_03-2021_Lemenkova_49_60.pdf https://hal.archives-ouvertes.fr/hal-03344552 |
genre |
Iceland |
genre_facet |
Iceland |
op_source |
Hyper Article en Ligne - Sciences de l'Homme et de la Société ISSN: 0554-5587 Poljoprivredna Tehnika Poljoprivredna Tehnika, University of Belgrade, Faculty of Agriculture, 2021, 46 (3), pp.49-60. ⟨10.5937/PoljTeh2103049L⟩ |
op_relation |
hal-03344552 doi:10.5937/PoljTeh2103049L 10670/1.s2mes3 https://hal.archives-ouvertes.fr/hal-03344552/file/PT_03-2021_Lemenkova_49_60.pdf https://hal.archives-ouvertes.fr/hal-03344552 |
op_rights |
lic_creative-commons other |
op_doi |
https://doi.org/10.5937/PoljTeh2103049L |
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Poljoprivredna tehnika |
container_volume |
46 |
container_issue |
3 |
container_start_page |
49 |
op_container_end_page |
60 |
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