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THE POTENTIAL USE OF HIGH RESOLUTION X-BAND SAR MOISTURE PRODUCTS FOR THE CALIBRATION OF A WATER BALANCE MODEL OVER BARE AGRICULTURAL SOILS (TUNISIA) | |
Gorrab, Azza1,2; Simonneaux, Vincent2; Zribi, Mehrez2; Saadi, Sameh1,2; Baghdadi, Nicolas3; Lili-Chabaane, Zohra1 | |
通讯作者 | Gorrab, Azza |
会议名称 | International Symposium on Signal, Image, Video and Communications (ISIVC) |
会议日期 | NOV 21-23, 2016 |
会议地点 | Tunis, TUNISIA |
英文摘要 | The aim of this paper was to demonstrate the potential of multi-temporal X-band Synthetic Aperture Radar (SAR) moisture products to be used for the calibration of a model reproducing soil moisture (SM) variations. We propose the MHYSAN model (Modsle de bilan HYdrique des Sols Agricoles Nus) for simulating soil water balance of bare soils. This model was used to simulate surface evaporation fluxes and soil moisture content (SMC) at daily time scale over a semi-arid, bare agricultural site in Tunisia (North Africa). The MHYSAN model was calibrated using seven very high-resolution SAR (TerraSAR-X) SM outputs ranging over only two months. Then, the simulated SM was validated using continuous thetaprobe measurements during 15 months. The high performances observed could be explained by the fact that although images were acquired during a short time range, the important soil moisture variation captured allowed a good calibration of the soil parameters. These results highlight the potential of Sentinel-1 images for daily soil moisture monitoring using simple models. |
英文关键词 | Bare soil hydrological model satellite soil moisture products semi-arid area continuous thetaprobe measurements |
来源出版物 | 2016 INTERNATIONAL SYMPOSIUM ON SIGNAL, IMAGE, VIDEO AND COMMUNICATIONS (ISIVC) |
出版年 | 2016 |
页码 | 185-190 |
EISBN | 978-1-5090-3611-0 |
出版者 | IEEE |
类型 | Proceedings Paper |
语种 | 英语 |
国家 | Tunisia;France |
收录类别 | CPCI-S |
WOS记录号 | WOS:000406467300033 |
WOS关键词 | IMAGE TIME-SERIES ; SEMIARID REGION ; TERRASAR-X ; RADAR DATA ; SURFACE ; ASSIMILATION ; IRRIGATION ; RETRIEVAL ; TEXTURE ; ASAR |
WOS类目 | Engineering, Electrical & Electronic ; Telecommunications |
WOS研究方向 | Engineering ; Telecommunications |
资源类型 | 会议论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/305711 |
作者单位 | 1.Univ Carthage, Inst Natl Agron Tunisie, 43 Ave Charles Nicolle, Tunis Mahrajene 1082, Tunisia; 2.Ctr Etud Spatiales Biosphere, 18 Av Edouard Belin,BP 2801, F-31401 Toulouse 9, France; 3.IRTEA, UMR TETIS Maison Teledetect, F-34093 Montpellier, France |
推荐引用方式 GB/T 7714 | Gorrab, Azza,Simonneaux, Vincent,Zribi, Mehrez,et al. THE POTENTIAL USE OF HIGH RESOLUTION X-BAND SAR MOISTURE PRODUCTS FOR THE CALIBRATION OF A WATER BALANCE MODEL OVER BARE AGRICULTURAL SOILS (TUNISIA)[C]:IEEE,2016:185-190. |
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