POTENTIAL OF THE NORMALIZED POLARIZATION RATIO AND THE INTERFEROMETRIC COHERENCE SENTINEL-1 DATA TO RECONSTRUCT THE NDVI WHEAT CYCLE AT A FIELD SCALE

被引：1

作者：

Ayari, Emna ^{[1
,2
]}

Kassouk, Zeineb ^{[2
]}

Chabaane, Zohra Lili ^{[2
]}

Ouaadi, Nadia ^{[1
,3
]}

Baghdadi, Nicolas ^{[4
]}

Zribi, Mehrez ^{[1
]}

机构：

[1] UPS, CESBIO, CNRS, IRD,CNES,INRAE, 18 Ave Edouard Belin,Bpi 2801, F-31401 Toulouse 9, France

[2] Carthage Univ, Natl Agron Inst Tunisia, InteGRatEd Management Nat Resources RemoTE Sensin, Tunis 1082, Tunisia

[3] CNRS, CNRM, GMME, SURFACE,Meteo France, Toulouse, France

[4] Univ Montpellier, AgroParisTech, CIRAD, CNRS,INRAE,TETIS, F-34093 Montpellier 5, France

来源：

IGARSS 2023 - 2023 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM | 2023年

关键词：

Radar; vegetation; Sentinel-1; Sentinel-2; wheat; NDVI; TIME-SERIES;

D O I：

10.1109/IGARSS52108.2023.10282255

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

The aim of this study is to retrieve the NDVI values during the wheat cycle using the radar data over reference fields located in the Kairouan plain in the center of Tunisia. The developed approach is based on the use of C-band Sentinel-1 acquisition specifically the cross-polarization ratio and the estimated coherence as features of curve fitting equations and machine learning algorithms such as the random forest and the support vector machine regressors. The NDVI retrieve according to the wheat growth stage, at a field scale, was marked by RMSE values lower than 0.13 and bias values under -0.03

引用

页码：3217 / 3220

页数：4

共 15 条

[1] Analysis of Vegetation Behavior in a North African Semi-Arid Region, Using SPOT-VEGETATION NDVI Data [J].