NDLI: Estimation of areal soil water content during HAPEX-Sahel and EFEDA-Spain

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Determination of wind speed, wind direction and atmospheric structure using ERS-1 SAR data during NORCSEX '91

Ka-band ocean wave/radar modulation transfer function: a comparative study

Results from the 1993 LOGAN (Low Grazing ANgle) radar experiment

Measurements of surface wind on the ocean using an airborne radar looking at small incidence angles

Angle and polarization dependent microwave backscatter from ocean waves

Using cross-image spectra in a SAR ocean wave inversion scheme

Hull characteristics from SAR images of ship wakes

Capability of radar and microwave radiometer to classify snow types in forested areas

Classification of Baltic Sea ice with airborne microwave radiometer

Retrieval of snow and sea ice parameters from SSM/I data

Backscattering from sea ice with vertical structural variation: a model analysis

The influence of layering and grain size on microwave emission from polar firn

Sea-ice velocity fields estimation on Ross Sea AVHRR images

Intercomparison of observed and simulated ice motion for a one year time series

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L-band synthetic aperture radiometers for Earth remote sensing

A spaceborne synthetic aperture radiometer simulated by the TUD demonstration model

Digital correlator performance analysis for a synthetic aperture imaging radiometer

Status of ESTAR validation: results from Washita-92

MIRAS, a two-dimensional aperture synthesis radiometer

Applications of synthetic aperture radiometry

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Detection of atmospheric chlorine-compounds with an airborne submillimeter receiver

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Latitudinal structure of middle atmospheric water vapor revealed by shipboard microwave spectroscopy

The Danish polarimetric SAR for remote sensing applications

C-band solid state dual polarization T/R modules for airborne SAR applications

Application of the polarimetric matched image filter to the assessment of SAR data from the Mississippi flood region

Statistical models for polarimetric SAR data

Monostatic polarimetric calibration via target spinor

Statistical behaviour of a multiparameter polarimetric radar dataset

Studies on polarization synthesis and differential backscatter phase observations

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Neural network inversion of bidirectional reflectance

Inversion of soil moisture with radar backscattering data

Solving inverse problems using Bayesian modeling to incorporate information sources

Retrieval of semi-arid region parameters from passive microwave measurements using neural networks within a Bayesian framework

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Application of neural networks for identification of sea ice coverage and movements from satellite imagery

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Bayesian estimation of soil parameters from remote sensing data

Evaluation of an Australian ERS-1 SAR scene pertaining to soil moisture measurement

Segmentation of polarimetric AIRSAR-Data and SIR-C/X-SAR-Data for soil moisture determination in an agricultural area

SAR terrain correction for improved soil moisture estimation in a mountain watershed

Analysis of soil physical parameters and their influence on ERS-1 backscatter

Deriving antecedent moisture conditions from airborne SAR for input into a flood forecasting model

Delineation of 1993 Midwest flooding using ERS-1 SAR, SPOT and Landsat imagery

Remote sensing and synchronous land surface measurements for estimation of soil moisture and temperature

Characterization of soil moisture using a microstrip resonator

Spectral scattering properties of Scots pine shoots

Influence of Sun-view geometries on the relationships among vegetation indices, LAI, and absorbed PAR

Biophysical interpretation of a spectral mixture model based on a radiative transfer model and observational data

Using remotely sensed data to estimate surface albedo and absorbed photosynthetic active radiation

Optimization method for B/H ratio determination taking occlusion effect and MTF degradation due to atmosphere into account

Measurement of topographic surface slopes using polarimetric SAR images

Automatic DEM generation using Magellan stereo data

Effects of variation in soil moisture on ERS-1 SAR backscatter

Multitemporal analysis of ERS-1 and Landsat TM data for geologic studies

Application of ERS-1 SAR for coastal inundation

Evaluation of a multitemporal ERS-1 dataset for hydrologic applications

Global land surface monitoring using the ERS-1 scatterometer

The Alaska SAR facility: an introduction

Aerosol optical thickness retrieval from Sun photometer measurements

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NDVI sensitivity to atmospheric water vapor as a function of spectral bandwidth

The SeaWinds scatterometer instrument

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Simulation of RADARSAT ScanSAR for sea ice applications

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A SAR instrument for global monitoring of land surfaces and polar ice

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Emissions from orbiting tethered satellite systems to the Earth's surface: data analysis

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On the effect of soil surface roughness on the radar backscatter responses to soil moisture

Diurnal observations of soil moisture with passive microwave radiometers

An empirical soil moisture estimation algorithm using imaging radar

Model of complex dielectric constant of wet and frozen soil in the 1-40 GHz frequency range

Microwave radiometry on bare soils: comparison of various emission models of layered media with measurements

An inversion algorithm for retrieving soil moisture and surface roughness from polarimetric radar observation

Microwave soil moisture prediction through corn in Washita '92

Development and testing of a remote sensing based hydrologic model

Estimation of areal soil water content during HAPEX-Sahel and EFEDA-Spain

Classification of the Amazon rain forest using JERS-1 SAR data

Monitoring agricultural surfaces using ERS-1 multitemporal SAR data

Knowledge-based land-cover classification using ERS-1/JERS-1 composites

Land cover classification by SAR

Multi-temporal comparisons of ERS-1 and JERS-1 SAR data for land applications

Contribution of multi-temporal data to improve the radiometric resolution of SAR images

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A knowledge based classification of multitemporal ERS-1 and JERS-1 SAR images over the tropics

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Data processing and calibration of the Advanced Solid-State Array Spectroradiometer

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Accuracy of profile retrievals from mm-wave spectra of ClO and N/sub 2/O

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Monitoring the stratospheric ozone profile with ground-based microwave radiometer

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Spatial inhomogeneities of rain brightness temperature and averaging effect for satellite microwave radiometer observations

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LinkWinds, a visual data analysis system and its application to remote sensed data

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An automated method for making mosaic out of NOAA/AVHRR images for global monitoring

Directional vegetation index interactions in ASAS imagery

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A modeling study of bidirectional reflectance from soil surfaces

Microwave scattering model for grassland and short vegetation canopies

Sensitivity of microwave backscattering to crop biomass

Passive microwave remote sensing of vegetation biomass

Comparison between predicted performances of bistatic and monostatic radar in vegetation monitoring

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An ecological approach to radar mapping of biomass in interior Alaska boreal forests

The potential of microwave radiometers in monitoring forest biomass

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Volume 1 - 1994

Proceedings of IGARSS '93 - IEEE International Geoscience and Remote Sensing Symposium

[Proceedings] IGARSS '92 International Geoscience and Remote Sensing Symposium

[Proceedings] IGARSS'91 Remote Sensing: Global Monitoring for Earth Management

10th Annual International Symposium on Geoscience and Remote Sensing

12th Canadian Symposium on Remote Sensing Geoscience and Remote Sensing Symposium,

International Geoscience and Remote Sensing Symposium, 'Remote Sensing: Moving Toward the 21st Century'.

Estimation of areal soil water content during HAPEX-Sahel and EFEDA-Spain

Content Provider	IEEE Xplore Digital Library
Author	Van Oevelen, P.J. Hoekman, D.H.
Copyright Year	1994
Description	Author affiliation: Dept. of Water Resources, Wageningen Agric. Univ., Netherlands (Van Oevelen, P.J.; Hoekman, D.H.)
Abstract	In 1991 and 1992 two similar large field experiments took place: EFEDA-Spain and HAPEX-Sahel, respectively. The objectives of these experiments are (1) the improvement of the parameterisation of surface hydrology processes in semi-arid areas within the framework of global climate models and (2) to develop and apply methods for monitoring the surface hydrology at a large scale using remote sensing for climate prediction models. In this study the determination of areal soil water content by means of remote sensing is further explored and the implementation of such information in climate and hydrological models is discussed. The combined use of the various type of sensors is essential for retrieving this kind of information. Comparisons are made between the use of polarimetric SAR (P-, L-, C-band of JPL-AIRSAR) and a microwave radiometer operating at L-band for the determination of areal soil water content. The influence of vegetation can be significant and limit the applicability of both type of sensors within the framework of climate or hydrological modelling. The description of the path and interaction of electromagnetic radiation between the surface and the sensors is assessed by using radiative transfer models for as well the active microwave data and the passive microwave data. With this knowledge, simpler models will be applied to retrieve surface soil moisture and if necessary correct or avoid the problem of vegetation. For the active microwave data models will be used. For the passive data methods like empirical approaches using regression analysis and a more physically based approach will be utilised. It is anticipated that with the AIRSAR data estimates of soil moisture profiles can be retrieved over certain areas to a depth of approximately 0.5 m. The results of these microwave models will be validated against ground data and for certain agricultural fields against simulated data using a calibrated 1D hydrological model.
File Size	75954
File Format	PDF
ISBN	0780314972
DOI	10.1109/IGARSS.1994.399507
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1994-08-08
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Soil Remote monitoring Hydrology Predictive models Information retrieval Vegetation Condition monitoring Large-scale systems Microwave radiometry L-band
Content Type	Text
Resource Type	Article

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