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Geoscience and Remote Sensing, IEEE Transactions on

Issue 2 • Date March 1986

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  • IEEE Transactions on Geoscience and Remote Sensing

    Publication Year: 1986 , Page(s): c1
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  • IEEE Geoscience and Remote Sensing Society

    Publication Year: 1986 , Page(s): c2
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  • Table of contents

    Publication Year: 1986 , Page(s): 189
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  • About the cover

    Publication Year: 1986 , Page(s): 190
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  • Performance Bounds for an Inverse Resistivity Problem

    Publication Year: 1986 , Page(s): 191 - 197
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    A procedure has been proposed for recovering a radially varying electrical resistivity profile from a particular series of dc electrical measurements. Such a procedure has potential applications to the study of the invasion of porous materials by electrically conductive fluids. This paper concerns the sensitivity of such a procedure to inaccuracies in the measurements. It is shown that, for a laye... View full abstract»

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  • Transient Response from a Thin Sheet in a Conductive Medium for Loop Excitation

    Publication Year: 1986 , Page(s): 198 - 203
    Cited by:  Patents (2)
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    An analytical method to predict the electromagnetic step function response of a thin sheet anomaly in the Earth is given. Insight is provided for the characteristic form of the transient response of such a target. The method is an extension of Maxwell's original moving image solution to allow for a conductive background. The source is an arbitrary size insulated loop of current. Results show sensi... View full abstract»

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  • The Magnetotelluric Field for a Two-Dimensional Earth Modeled by a Nonuniform Buried Thin Sheet

    Publication Year: 1986 , Page(s): 204 - 211
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (2201 KB)  

    Magnetotellurics (MT) is an electromagnetic sounding technique used in electrical geophysics to obtain information about the subsurface resistivity structure of the Earth. This information is then used to infer the presence of various natural resources such as oil accumulations and sources of geothermal energy. Extensive research has been done in the area of modeling and interpretation of the Eart... View full abstract»

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  • Antenna Pattern Correction for the Nimbus-7 SMMR

    Publication Year: 1986 , Page(s): 212 - 219
    Cited by:  Papers (3)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (2163 KB)  

    This paper describes the philosophy and method used to develop the antenna pattern correction (APC) algorithm that was used on the data from the Scanning Multichannel Microwave Radiometer (SMMR) on Nimbus-7. There are limitations on what can be accomplished plished with such a procedure; these limitations are explored with the aid of Fourier analysis, even though the algorithm used on the SMMR dat... View full abstract»

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  • A Study of the Microwave Brightness Temperature of Snow from the Point of View of Strong Fluctuation Theory

    Publication Year: 1986 , Page(s): 220 - 231
    Cited by:  Papers (18)
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    An application of strong fluctuation theory to the computation of the brightness temperature of dry and wet isothermal snowpacks is made. The numerical problems associated with computations are analyzed for the case of plane boundaries but arbitrary structure in the vertical direction. Comparisons of computed effective dielectric constants as well as brightness temperatures with experimental obser... View full abstract»

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  • A Re-Examination of Radar Terrain Backscattering at Nadir

    Publication Year: 1986 , Page(s): 232 - 234
    Cited by:  Papers (2)
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    The theoretical behavior of nadir specular and diffuse radar backscattering from rough terrain is re-examined. Terrain is modeled as a random rough surface in the Kirchhoff approximation. The relative significance of specular (coherent) and diffuse (noncoherent) radar backscatter is compared in terms of the antenna system parameters (beamwidth, height, and frequency) and rough surface statistics. ... View full abstract»

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  • Textural Infornation in SAR Images

    Publication Year: 1986 , Page(s): 235 - 245
    Cited by:  Papers (168)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (4332 KB)  

    A multiplicative model was used to relate the image variance for a given land-use category to the individual variances associated with image speckle and target texture. Speckle was treated as a random process governed by signal fading and was considered to be statistically independent of the textural variations associated with the spatial variations of the scattering properties of visually "unifor... View full abstract»

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  • Multipolarization Radar Images for Geologic Mapping and Vegetation Discrimination

    Publication Year: 1986 , Page(s): 246 - 257
    Cited by:  Papers (9)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (8872 KB)  

    The NASA/JPL airborne synthetic aperture radar system produces radar image data simultaneously in four linear polarizations (HH, VV, VH, HV) at 24.6-cm wavelength (L-band), with 10-m resolution, across a swath width of approximately 10 km. The signal data are recorded optically and digitally and annotated in each of the channels to facilitate a completely automated digital correlation. Both standa... View full abstract»

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  • Assessment of Atmospheric Limitations on the Determination of the Solar Spectral Constant from Ground-Based Spectroradiometer Measurements

    Publication Year: 1986 , Page(s): 258 - 266
    Cited by:  Papers (5)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (3630 KB)  

    Ground-based solar radiometer measurements have long been used to investigate various properties of both the Earth's atmosphere and the sun. This paper addresses the problem of attempting to measure the solar spectral irradiance with heretofore unachieved levels of accuracy and precision (~0.5 and ~0.1 percent, respectively) via spectroradiometer measurements made at high-altitude ground stations.... View full abstract»

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  • High Temporal-Resolution Infrared-Radiometric Observations of the Atmospheric Boundary Layer

    Publication Year: 1986 , Page(s): 267 - 280
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    An experiment designed to study the relationship of radiometric fluctuations to those of temperature and associated variables in the atmospheric boundary layer is described. Simultaneous and colocated observations were conducted by a ground-based infrared radiometer, fast response temperature, humidity, and wind sensors at 8 levels on the 300-m meteorological tower of the NOAA Boulder Atmospheric ... View full abstract»

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  • Directional Reflectance Distributions of a Hardwood and Pine Forest Canopy

    Publication Year: 1986 , Page(s): 281 - 293
    Cited by:  Papers (39)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (4804 KB)  

    The directional reflectance distributions for both a hardwood and pine forest canopy at Beltsville, Maryland, were measured in June as a function of sun angle from a helicopter platform using a hand-held radiometer with AVHRR band 1 (0.58-0.68 ¿m) and band 2 (0.73-1.1 ¿m). Canopy characteristics were measured on the ground. The reflectance distributions are reported and compared to the scatterin... View full abstract»

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  • Noise in Remote-Sensing Systems: The Effect on Classification Error

    Publication Year: 1986 , Page(s): 294 - 300
    Cited by:  Papers (9)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1814 KB)  

    Several types of noise in remote-sensing systems are treated. The purpose is to provide enhanced understanding of the relationship of noise sources to both analysis results and sensor design. The context of optical sensors and spectral pattern recognition analysis methods is used to enable tractability for quantitative results. First, the concept of multispectral classification is reviewed. Next, ... View full abstract»

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  • Storing Feature Descriptions as 2-D Trees

    Publication Year: 1986 , Page(s): 301 - 303
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (602 KB)  

    Many methods have been proposed which produce lowlevel features from digital images, e. g., the raw primal sketch or intrinsic images. However, in some cases the features occur sparsely in the image, and a more efficient storage scheme can be used than a registered array of feature images. Edges constitute one of the most useful sorts of information for scene analysis. Even though edge responses u... View full abstract»

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  • IEEE individual learning packages [advertisement]

    Publication Year: 1986 , Page(s): 303-a
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  • Information for authors

    Publication Year: 1986 , Page(s): 303b
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  • Institutional listings

    Publication Year: 1986 , Page(s): 303c
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Aims & Scope

 

IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING (TGRS) is a monthly publication that focuses on the theory, concepts, and techniques of science and engineering as applied to sensing the land, oceans, atmosphere, and space; and the processing, interpretation, and dissemination of this information.

 

Full Aims & Scope

Meet Our Editors

Editor-in-Chief
Antonio J. Plaza
University of Extremadura