Cal/Val

ALOS-4 Calibration and Validation

ALOS-4 Calibration/Validation and Science Team

The ALOS-4 CVST (Calibration/Validation and Science Team) will conduct the following research on calibration/validation of standard products and maintenance of validation data (calibration/validation) as one of the themes of the EORC Earth Observation Research Announcement.

  • * Methods of calibration, validation, and accuracy improvement for standard products
  • * Assessing accuracy and applicability of standard products from the initial Cal/Val phase to the beginning of the operational phase
  • * Development and sharing of high-level products and analysis tools for fundamental applications
  • * Experiment and demonstration using new features of ALOS-4 such as ionospheric correction mode, extended swath width, and frequent time-series data.
  • * Research and assessment on cross-calibration with other SAR satellites
  • * Research on new technology for future missions


ALOS-4 Calibration/Validation and Science Team Members
Name Institution Research Theme
Urs Wegmuller Gamma Remote Sensing AG ALOS-4 ionospheric correction and cross-sensor interferometry
Masato Furuya Hokkaido University Study on ionospheric signals by PALSAR-2 / 3 InSAR
Masanobu Shimada Tokyo Denki University Calibration and validation of PALSAR-3
Manabu Hashimoto Kyoto University Evaluation of accuracy of displacement measurements of ALOS-4 in active tectonic zones
Chin Shi Tong Nanyang Technological University Maximizing potential of ALOS-4 for disaster response in south and southeast Asia
Taku Ozawa National Research Institute for Earth Science and Disaster Resilience (NIED) Validation of surface change detection performance of SAR interferometry using PALSAR-3
Ryo Natsuaki University of Tokyo Validation of PALSAR-3 interferometric analysis and mutual analysis with PALSAR-2
Hiroyoshi Yamada Niigata University Cal./val. of ALOS-4 quad. pol. data by scattering power decomposition
Marc Thibeault CONAE Crops classification and soil moisture estimation over cropland in Argentina using cross calibration with SAOCOM
Angel Matias Palomeque CONAE ALOS-4/PALSAR-3 external calibration and cross-validation with SAOCOM
Motofumi Arii Mitsubishi Electric Calibration and validation of ALOS-4 standard products for land/ocean use by MIMP-SAR approach
Takenobu Toyota Hokkaido University Validation of the algorithm with L-band SAR data for detecting deformed sea ice area in the Arctic Ocean
Giorgio Gomba German Aerospace Center (DLR) Calibration of propagation effects for SAR interferometry: ionosphere and soil moisture
Howard Zebker Stanford University Phase calibration and validation of ALOS-4 data products for InSAR applications
Bruce Chapman NASA Jet Propulsion Laboratory (JPL) NISAR and ALOS-4 Joint Cal/Val
Bernd Scheuchl University of California, Irvine ALOS-4 PALSAR-3 validation for ice sheet science
Akira Hirose University of Tokyo Coregistration and filtering methods for high resolution PolInSAR data based on phasor quaternion neural networks
Konstantinos Papathanassiou German Aerospace Center (DLR) Polarimetric and polarimetric interferometric calibration of ALOS-4 data
Alexander Zakharov Fryazino branch of Kotelnikov IRE RAS PALSAR-3 radiometric calibration with natural distributed targets
Lars Ulander Chalmers University of Technology ALOS-4 PALSAR-3 calibration and validation activities in Sweden
Paul Siqueira University of Massachusetts Calibration and validation of ALOS-4 for radiometry, polarimetry and volumetric scattering
Ridha Touzi Canada Centre for Remote Sensing (CCRS) Calibration and validation of polarimetric ALOS4-PALSAR3
Tomokazu Kobayashi Geospatial Information Authority of Japan (GSI) ALOS-4-based nationwide monitoring of ground deformation


ALOS-4 CVST Website is here
(CVST members only)