Bi-dimensional soil roughness measurement by photogrammetry for SAR modeling of agricultural surfaces
(2004) IEEE International Symposium on Geoscience and Remote Sensing (IGARSS). In IEEE International Symposium on Geoscience and Remote Sensing (IGARSS) p.4038-4041- abstract
- In the description of soil roughness for SAR monitoring, the hypothesis of surface isotropy was currently admitted and in-situ roughness measurements were recorded along linear profiles. However, this paper showed for agricultural soil surfaces this hypothesis is not valid and anisotropic surface must be assumed. Stereoscopic pairs of vertical photographs were acquired to produce Digital Elevation Models (DEM) for the soil roughness description. This paper presents a measurements method to describe the bi-dimensional soil roughness and discuss 3 advantages of the photogrammetric method compared to the linear measurements. (i) A high variability of the roughness parameters estimated by linear profiles m as observed. Using the DEM, a high number of profiles were drawn for a given direction. A more accurate estimation of rms and correlation length was obtained averaging several profiles. (ii) The anisotropy were measured and represented by it directional variograms. (iii) The anisotropic roughness were decomposed in 2 models: the isotropic random roughness and the anisotropy induced by, the sowing-rows.
Please use this url to cite or link to this publication:
http://hdl.handle.net/1854/LU-2036882
- author
- X Blaes, P Defourny, M Callens and Niko Verhoest UGent
- organization
- year
- 2004
- type
- conference (proceedingsPaper)
- publication status
- published
- subject
- keyword
- soil roughness, BACKSCATTERING, anisoptropy photogrammetry
- in
- IEEE International Symposium on Geoscience and Remote Sensing (IGARSS)
- series title
- IEEE International Symposium on Geoscience and Remote Sensing (IGARSS)
- issue title
- IGARSS 2004 : IEEE international geoscience and remote sensing symposium proceedings, vols 1-7 : science for society : exploring and managing a changing planet
- pages
- 4038 - 4041
- publisher
- IEEE
- place of publication
- New York, NY, USA
- conference name
- IEEE International Geoscience and Remote Sensing Symposium
- conference location
- Anchorage, AK, USA
- conference start
- 2004-09-20
- conference end
- 2004-09-24
- Web of Science type
- Proceedings Paper
- Web of Science id
- 000227006901065
- ISBN
- 9780780387423
- language
- English
- UGent publication?
- yes
- classification
- P1
- id
- 2036882
- handle
- http://hdl.handle.net/1854/LU-2036882
- date created
- 2012-02-17 11:40:01
- date last changed
- 2017-01-02 09:53:25
@inproceedings{2036882, abstract = {In the description of soil roughness for SAR monitoring, the hypothesis of surface isotropy was currently admitted and in-situ roughness measurements were recorded along linear profiles. However, this paper showed for agricultural soil surfaces this hypothesis is not valid and anisotropic surface must be assumed. Stereoscopic pairs of vertical photographs were acquired to produce Digital Elevation Models (DEM) for the soil roughness description. This paper presents a measurements method to describe the bi-dimensional soil roughness and discuss 3 advantages of the photogrammetric method compared to the linear measurements. (i) A high variability of the roughness parameters estimated by linear profiles m as observed. Using the DEM, a high number of profiles were drawn for a given direction. A more accurate estimation of rms and correlation length was obtained averaging several profiles. (ii) The anisotropy were measured and represented by it directional variograms. (iii) The anisotropic roughness were decomposed in 2 models: the isotropic random roughness and the anisotropy induced by, the sowing-rows.}, author = {Blaes, X and Defourny, P and Callens, M and Verhoest, Niko}, booktitle = {IEEE International Symposium on Geoscience and Remote Sensing (IGARSS)}, isbn = {9780780387423}, keyword = {soil roughness,BACKSCATTERING,anisoptropy photogrammetry}, language = {eng}, location = {Anchorage, AK, USA}, pages = {4038--4041}, publisher = {IEEE}, title = {Bi-dimensional soil roughness measurement by photogrammetry for SAR modeling of agricultural surfaces}, year = {2004}, }
- Chicago
- Blaes, X, P Defourny, M Callens, and Niko Verhoest. 2004. “Bi-dimensional Soil Roughness Measurement by Photogrammetry for SAR Modeling of Agricultural Surfaces.” In IEEE International Symposium on Geoscience and Remote Sensing (IGARSS), 4038–4041. New York, NY, USA: IEEE.
- APA
- Blaes, X., Defourny, P., Callens, M., & Verhoest, N. (2004). Bi-dimensional soil roughness measurement by photogrammetry for SAR modeling of agricultural surfaces. IEEE International Symposium on Geoscience and Remote Sensing (IGARSS) (pp. 4038–4041). Presented at the IEEE International Geoscience and Remote Sensing Symposium, New York, NY, USA: IEEE.
- Vancouver
- 1.Blaes X, Defourny P, Callens M, Verhoest N. Bi-dimensional soil roughness measurement by photogrammetry for SAR modeling of agricultural surfaces. IEEE International Symposium on Geoscience and Remote Sensing (IGARSS). New York, NY, USA: IEEE; 2004. p. 4038–41.
- MLA
- Blaes, X, P Defourny, M Callens, et al. “Bi-dimensional Soil Roughness Measurement by Photogrammetry for SAR Modeling of Agricultural Surfaces.” IEEE International Symposium on Geoscience and Remote Sensing (IGARSS). New York, NY, USA: IEEE, 2004. 4038–4041. Print.