Gary Smith Jonforsen

Publications (35)
Projects (0)

Showing 35 publications

2009

Model-based compensation of topography effects for improved stem volume retrieval from CARABAS-II VHF-band SAR images

Klas Folkesson, Gary Smith Jonforsen, Lars Ulander

IEEE Transactions on Geoscience and Remote Sensing. Vol. 47 (4), p. 1045-1055

Journal article

2008

Validating backscatter models for CARABAS SAR images of coniferous forests

Klas Folkesson, Gary Smith Jonforsen, Lars Ulander

Canadian J. of Remote Sensing. Vol. 34 (5), p. 480-495

Journal article

2008

A physical-optics model for double-bounce scattering from tree stems standing on an undulating ground surface

Björn Hallberg, Gary Smith Jonforsen, Lars Ulander et al

IEEE Transactions on Geoscience and Remote Sensing. Vol. 46 (9), p. 2607-2621

Journal article

2007

ALOS PALSAR Calibration and Validation Results from Sweden

Leif Eriksson, Gustaf Sandberg, Lars Ulander et al

IEEE Geoscience and Remote Sensing Symposium (IGARSS 2007), Barcelona, Spain, July 23-27, 2007. Vol. DOI: 10.1109/IGARSS.2007.4423115, p. 1589-1592

Other conference contribution

2007

A Physical-optics Model for Predicting VHF/UHF-band HH-pol Backscatter from Coniferous Forests in Undulating Terrain

Gustaf Sandberg, Björn Hallberg, Gary Smith Jonforsen et al

5th International Symposium on Retrieval of Bio- and Geophysical Parameters from SAR Data, Bari, Italy, September 25-28, 2007, ESA, Istituto di Studi sui Sistemi Intelligenti per l`Automazione

Other conference contribution

2007

Topographic and Number Density Effects in Forest Observations with P-band SAR

Lars Ulander, Gustaf Sandberg, Klas Folkesson et al

5th International Symposium on Retrieval of Bio- and Geophysical Parameters from SAR Data, Bari, Italy, September 25-28, 2007, ESA, Istituto di Studi sui Sistemi Intelligenti per l´Automazione

Other conference contribution

2007

Effects of Forest Biomass and Stand Consolidation on P-Band Backscatter

Gary Smith Jonforsen, Klas Folkesson, Björn Hallberg et al

IEEE Geoscience and Remote Sensing Letters. Vol. 4 (4), p. 669-673

Magazine article

2007

Mapping of Wind-Thrown Forests Using VHF/UHF SAR Images

J.E.S. Fransson, M. Magnusson, Klas Folkesson et al

IEEE 2007 International Geoscience and Remote Sensing Symposium (IGARSS 2007), Barcelona, Spain, July 23-27 2007. Vol. DOI: 10.1109/IGARSS.2007.4423313, p. 2350-2353

Other conference contribution

2007

Detection of forest changes using ALOS PALSAR satellite images

J.E.S. Fransson, M. Magnusson, H. Olsson et al

IEEE Geoscience and Remote Sensing Symposium (IGARSS 2007), Barcelona, Spain, July 23-27, 2007. Vol. DOI: 10.1109/IGARSS.2007.4423308, p. 2330-2333

Other conference contribution

2007

Estimation of forest stem volume using ALOS PALSAR satellite images

M. Magnusson, J.E.S. Fransson, Leif Eriksson et al

IEEE Geoscience and Remote Sensing Symposium (IGARSS 2007), Barcelona, Spain, July 23-27, 2007. Vol. DOI: 10.1109/IGARSS.2007.4423813, p. 4343-4346

Other conference contribution

2006

Mapping of wind-thrown forests using the VHF-band CARABAS-II SAR

Lars Ulander, A. Gustavsson, Gary Smith Jonforsen et al

IEEE Geoscience and Remote Sensing Symposium (IGARSS), held in Denver, Colorado, July 2006., p. 3684-

Other conference contribution

2006

Algorithms for automatic detection of wind thrown trees in CARABAS SAR images

Gary Smith Jonforsen, Björn Hallberg, Klas Folkesson

Report

2006

Automatic Detection of Wind-Thrown Forest in VHF SAR Images

Klas Folkesson, Björn Hallberg, Gary Smith Jonforsen et al

IEEE Geoscience and Remote Sensing Symposium (IGARSS), held in Denver, Colorado, July 2006., p. 3599-

Other conference contribution

2006

LORAM - A SAR/GMTI Data Collection Campaign

A. Gustavsson, Lars Ulander, P-O. Frölind et al

EUSAR 2006, held in Dresden, Germany, May 2006.

Other conference contribution

2006

VHF/UHF Ultra-Wideband SAR Measurements of Forests

Gary Smith Jonforsen, Björn Hallberg, Klas Folkesson et al

EUSAR 2006, held in Dresden, Germany, May 2006.

Other conference contribution

2006

ALOS Calibration and Validation Activities in Sweden

Lars Ulander, Leif Eriksson, Gary Smith Jonforsen et al

IEEE Geoscience and Remote Sensing Symposium (IGARSS), held in Denver, Colorado, July 2006., p. 336-

Other conference contribution

2005

Measurements on individual trees using multiple VHF SAR images

Björn Hallberg, Gary Smith Jonforsen, Lars Ulander

IEEE Trans. Geosci. Rem. Sens.. Vol. 43 (10), p. 2261-2269

Journal article

2005

Evaluation of using space- and airborne radar for mapping wind-thrown forests after the January 2005 hurricane in southern Sweden

Lars Ulander, Gary Smith Jonforsen, Leif Eriksson et al

Forestsat 2005 / Olsson, H.. Vol. A, p. 99-104

Other conference contribution

2005

Remote Sensing at the Department of Radio and Space Science, Chalmers University of Technology

Jan Askne, Gunnar Elgered, Bo Galle et al

IEEE Geoscience and Remote Sensing Newsletter (136), p. 11-18

Magazine article

2005

Mapping and monitoring forest stem volume using CARABAS

Klas Folkesson, J.E.S. Franssson, A. Gustavsson et al

Forestsat 2005 / Olsson, H.. Vol. B, p. 97-101

Other conference contribution

2005

Measurements at tree level using CARABAS-II

Björn Hallberg, Gary Smith Jonforsen, Lars Ulander

Forestsat 2005 / Olsson, H.. Vol. A, p. 54-58

Other conference contribution

2005

Mapping of Wind-thrown Forests in Southern Sweden Using Space- and Airborne SAR

Lars Ulander, Gary Smith Jonforsen, Leif Eriksson et al

IEEE "Geoscience and Remote Sensing Symposium (IGARSS), Seoul, Korea, 25-29 July. Vol. 5, p. 3619-3622

Other conference contribution

2005

Low VHF-band backscatter from coniferous forests on sloping terrain

Gary Smith Jonforsen, Lars Ulander, X. Luo

IEEE Trans. Geosci. Rem. Sens.. Vol. 43 (10), p. 2246-2260

Journal article

2004

Estimation of Forest Stem Volume in Sloping Terrain Using CARABAS-II VHF SAR Data

J.E.S. Fransson, Gary Smith Jonforsen, F. Walter et al

Can. J. Rem. Sens.. Vol. 30, p. 651-660

Journal article

2004

Performance Simulation of Spaceborne P-Band SAR for Global Biomass Retrieval

Björn Hallberg, Gary Smith Jonforsen, Annelie Olofsson et al

IEEE "Geoscience and Remote Sensing Symposium (IGARSS), Anchorage, Alaska, Sept 2004, p. 503-506

Paper in proceeding

2004

Applications of Low-Frequency SAR: Final Project Report, ESA Contract No. 16115/02/NL/MM

Gary Smith Jonforsen, Anders Carlström, Klas Folkesson et al

Report

2004

L-Band Observations of Boreal Forest Stem Volume

Jan Askne, M. Santoro, Gary Smith Jonforsen

Proceedings of the 23rd EARSeL Symposium on Remote Sensing in Transition, Millpress, 'Rotterdam, ed. R. Goassens, p. 159-

Paper in proceeding

2004

Automatic Segmentation of Multiple VHF-Band SAR Images to Improve Stem Volume Retrieval

Klas Folkesson, Gary Smith Jonforsen, Lars Ulander

IEEE Geoscience and Remote Sensing Symposium (IGARSS), Anchorage, Alaska, Sept. 2004, p. 519-522

Paper in proceeding

2004

Simulation of a Spaceborne Low-Frequency SAR for Global Biomass Assessment

Björn Hallberg, Gary Smith Jonforsen, Annelie Olofsson et al

“Radar 2004”, Toulouse, France, 18-22 October, 2004.

Other conference contribution

2003

Stem volume retrieval at stand level using multiple low-frequency SAR images

Klas Folkesson, Gary Smith Jonforsen, Lars Ulander

IEEE Geoscience and Remote Sensing Symposium (IGARSS), Toulouse, France, 21-25 July. Vol. IV, p. 2556-8

Other conference contribution

2003

A production line for forest stem volume measurements from VHF SAR data

F. Walter, J.E.S. Fransson, A. Gustavsson et al

IEEE "Geoscience and Remote Sensing Symposium (IGARSS), Toulouse, France, 21-25 July. Vol. IV, p. 2544-6

Other conference contribution

2003

Multitemporal repeat-pass SAR interferometry of boreal forests

Jan Askne, M Santoro, Gary Smith Jonforsen et al

IEEE Transactions on Geoscience and Remote Sensing. Vol. 41 (7), p. 1540-1550

Journal article

2002

Forest stem volume estimation using high-resolution lidar and SAR data

Gary Smith Jonforsen, Å. Persson, J. Holmgren et al

IEEE Geoscience and Remote Sensing Symposium (IGARSS), Toronto, Canada, 24-28 June. Vol. IV, p. 2084-6

Other conference contribution

2000

Radar Remote Sensing of Forests Using CARABAS and ERS

Gary Smith Jonforsen

Doctoral thesis

1998

ERS InSAR coherence for remote sensing of boreal forests

Gary Smith Jonforsen

Licentiate thesis

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