A soil moisture algorithm using tilted Bragg approximation
In this paper, we present a soil moisture algorithm theoretically derived using the tilted Bragg proximation.
soil moisture polarimetric SAR data analysis↗
Engineering topics
Zyl, J. van
Publications and source records attributed to Zyl, J. van.
Inferring soil moisture and vegetation parameters from airborne and spaceborne radar data
Most of the emphasis in active remote sensing of soil moisture has focused on higher resolution SAR data. We critically examine the existing soil moisture algorithms, and compare the performance of the different algorithms.
soil moisture meteorology SeaWinds QuikSCAT↗
The use of polarimetric and interferometric SAR data in floodplain mapping
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interferometry SAR AIRSAR↗
On the relationshop between polarimetric parameters and soil moisture
In this paper, we examine the relationship between polarimetric parameters and soil moisture. For example, the co-polarization ratio is independent of surface roughness to the first order of the small perturbation approximation. As surface roughness increases, it can be shown that the co-polarization ratio depends on the surface slope under the tilted Bragg approximation. The coupling of the surface roughness to the co-polarization ratio is theoretically investigated. An algorithm to compensate the surface slope effect will be discussed. We will also study other polarimetric parameters such as the average alpha angle and eigenvalues to understand their relationship with soil moisture.
polarimetric parameters soil moisture↗
Overview of vegetation parameter estimation techniques using SAR polarimetry and interferometery
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forest parameter estimation polarimetric SAR data↗
Comparison of Forest Parameter Estimation Techniques Using SAR Data
It is important to monitor forests in order to understand the impacts of global climate changes on terrestrial ecosystems. To characterize the forest changes, it is useful to parameterize a forest using several parameters.
SAR polarimetry SAR interferometry forest paramete↗
Performance and Optimization Metrics for Interferometric Radar
This paper provides a set of analytic equations that can be used to estimate system performance or to assist in the design of a system in that individual sources of height error can be balanced to minimize cost and maximize efficient use of resources.
optimization metrics interferometric radar interfe↗
The Relationship Between Radar Polarimetry and Radar Interferometry
This paper examines the relationship between the phase measured by a radar polarimeter and a radar interferometer.
Radar↗
Recent Advances in Radar Technology and Techniques for Affordable Planetary Remote Sensing
Radar remote sensing instruments acquire data useful for geophysical investigations by measuring electromagnetic interactions with natural objects.
radar remote sensing radar technology radar techni↗
Preliminary Science Results from the SIR-C/X SAR Mission
Quantitative results are to be provided (in the full paper) for two synthetic aperture radar (SAR) data missions from a space shuttle using the SIR-C/X-SAR in April and October 1994.
synthetic aperture radar SAR SIR-C X-SAR↗
Measuring Soil Moisture with Active Microwave: Effect of Vegetation
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soil moisture measuring remotely sensed radar data↗
On the Use of Dual Polarized Interferometry to Measure Scattering From Vegetated Areas
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Dual Polarized Interferometry↗
The New Dual Frequency (C- and L-Band) Topsar Airborne Interferometric SAR
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Interferometric SAR↗
Regional Mapping of Forest Canopy Water Content and Biomass Using AIRSAR Images over BOREAS Study Area
In recent years, monitoring vegetation biomass over various climate zones has become the primary focus of several studies interested in assessing the role of the ecosystem responses to climate change and human activities. Airborne and spaceborne synthetic-aperture radar (SAR) systems provide a useful tool to directly estimate biomass due to its sensitivity structure and moisture characteristics.
Forestry↗
Bayesian Estimation of Soil Parameters from Remote Sensing Data
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soil parameters radar measurements average formula↗