Results 21 to 30 of about 17,655,535 (260)

Change in regional land subsidence in Beijing after south-to-north water diversion project observed using satellite radar interferometry

open access: yesGIScience & Remote Sensing, 2020
Over-exploitation of groundwater has caused severe land subsidence in Beijing during the past two decades. Since the middle route of South-to-North Water Diversion Project (SNWDP), the biggest water diversion project in China, started to deliver water to
Mingyuan Lyu   +6 more
doaj   +1 more source

Combining Machine Learning and Compact Polarimetry for Estimating Soil Moisture from C-Band SAR Data

open access: yesRemote Sensing, 2019
This research aimed at exploiting the joint use of machine learning and polarimetry for improving the retrieval of surface soil moisture content (SMC) from synthetic aperture radar (SAR) acquisitions at C-band. The study was conducted on two agricultural
Emanuele Santi   +3 more
doaj   +1 more source

Automated SAR Image Thresholds for Water Mask Production in Alberta’s Boreal Region

open access: yesRemote Sensing, 2020
Mapping and monitoring surface water features is important for sustainably managing this critical natural resource that is in decline due to numerous natural and anthropogenic pressures.
Craig Mahoney   +4 more
doaj   +1 more source

COMPARISON OF C-BAND AND X-BAND POLARIMETRIC SAR DATA FOR RIVER ICE CLASSIFICATION ON THE PEACE RIVER [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016
In this study, synthetic aperture radar (SAR) data from TerraSAR-X were compared with RADARSAT-2 data to evaluate their effectiveness for river ice monitoring on the Peace River. For several years RADARSAT-2 data have been successfully used for river ice
H. Łoś   +6 more
doaj   +1 more source

DTM generation with Radarsat-2 Data without GCP [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2012
Digital terain models (DTMs) were extracted from high-resolution Radarsat-2 stereo high-resolution images. The metadata supplied by MacDonald, Dettwiler and Associates Ltd.
T. Toutin, K. Omari
doaj   +1 more source

RADARSAT-2: applications [PDF]

open access: yesInternational Journal of Remote Sensing, 2016
With state-of-the-art technology, RADARSAT-2 is one of the most advanced commercially available Earth observation radar sensors and offers users around the world an expanded range of high-quality d...
openaire   +1 more source

Contributions of Actual and Simulated Satellite SAR Data for Substrate Type Differentiation and Shoreline Mapping in the Canadian Arctic

open access: yesRemote Sensing, 2017
Detailed information on the land cover types present and the horizontal position of the land–water interface is needed for sensitive coastal ecosystems throughout the Arctic, both to establish baselines against which the impacts of climate change can be ...
Sarah Banks   +9 more
doaj   +1 more source

Multi-sensor approach integrating optical and multi-frequency synthetic aperture radar for carbon stock estimation over a tropical deciduous forest in India

open access: yesCarbon Management, 2020
An optimal model was developed for accounting forest carbon stock from synergistic use of optical data from Landsat TM and synthetic aperture radar (SAR) data from COSMO-Skymed (X-band), Radarsat-2 (C-band) and ALOS PALSAR (L-band) sensors over a ...
Suman Sinha   +7 more
doaj   +1 more source

Ship and Oil-Spill Detection Using the Degree of Polarization in Linear and Hybrid/Compact Dual-Pol SAR [PDF]

open access: yes, 2012
Monitoring and detection of ships and oil spills using synthetic aperture radar (SAR) have received a considerable attention over the past few years, notably due to the wide area coverage and day and night all-weather capabilities of SAR systems.
Shirvany, Reza   +2 more
core   +1 more source

Discriminant analysis for lodging severity classification in wheat using RADARSAT-2 and Sentinel-1 data

open access: yes, 2020
Crop lodging - the bending of crop stems from their upright position or the failure of root-soil anchorage systems - is a major yield-reducing factor in wheat and causes deterioration of grain quality. The severity of lodging can be measured by a lodging
Chauhan, Ms S (Faculty of Geo-Information Science and Earth Observation (ITC), University of Twente)
core   +1 more source

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