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Geoscience and Remote Sensing, IEEE Transactions on

Issue 1 • Date Jan. 1983

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Displaying Results 1 - 21 of 21
  • [Front cover - IEEE Transactions on Geoscience And Remote Sensing]

    Publication Year: 1983 , Page(s): c1
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  • IEEE Geoscience And Remote Sensing Society

    Publication Year: 1983 , Page(s): c2
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  • Table of contents

    Publication Year: 1983 , Page(s): 1
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  • Ocean Experiments And Remotely Sensed Images of Chemically Dispersed Oil Spills

    Publication Year: 1983 , Page(s): 2 - 15
    Cited by:  Papers (3)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (4835 KB)  

    A series of experiments was performed at sea where the effectiveness of dispersants applied from a helicopter was tested on fresh and weathered crude oils released from a surface research vessel. In conjunction with these experiments, remote sensing measurements using an array of airborne optical and microwave sensors were performed in order to aid in the interpretation of the dispersant effective... View full abstract»

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  • The Application of Near-Nadir Δk Radar Techniques to Geodetic Altimetry And Oceanographic Remote Sensing

    Publication Year: 1983 , Page(s): 16 - 24
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    This paper first examines the extension of two-frequency, or Δk, near-nadir remote sensing techniques to off-nadir radar altimetry. A different approach to sea state sensing is investigated which appears to offer much higher accuracy. The second section examines the Δk method of sensing rough-surface area correlation or ocean wavenumber spectrum. The technique shows promise of dire... View full abstract»

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  • Doppler Weather Radar for Profiling And Mapping Winds in the Prestorm Environment

    Publication Year: 1983 , Page(s): 25 - 33
    Cited by:  Papers (3)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (4226 KB)  

    Doppler radars (10 cm) used in weather research are shown to be capable of mapping the kinematic structure of the prestorm convective boundary layer (CBL) to 100-km ranges. Zones of convergence, mapped by Doppler radar, preceded by hours the development of a single thunderstorm. Next generation operational weather radars are now being designed that will have similar capabilities if Doppler is part... View full abstract»

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  • Determination of Rain Rate from a Spaceborne Radar Using Measurements of Total Attenuation

    Publication Year: 1983 , Page(s): 34 - 43
    Cited by:  Papers (19)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (2750 KB)  

    Several experimental and theoretical studies have shown that path-integrated rain rates can be determined by means of a direct measurement of attenuation. For ground-based radars, this is done by measuring the backscattering cross section of a fixed target in the presence and absence of rain along the radar beam. A ratio of the two measurements yields a factor proportional to the attenuation from ... View full abstract»

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  • Multifrequency Measurements of the Effects of Soil Moisture, Soil Texture, And Surface Roughness

    Publication Year: 1983 , Page(s): 44 - 51
    Cited by:  Papers (53)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (2529 KB)  

    An experiment on remote sensing of soil moisture content was conducted over bare fields with microwave radiometers at the frequencies of 1.4, 5, and 10.7 GHz, during July-September of 1981. Three bare fields with different surface roughnesses and soil textures were prepared for the experiment. Ground-truth acquisition of soil temperatures and moisture contents for 5 layers down to the depths of 15... View full abstract»

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  • Effects of Vegetation Cover on the Microwave Radiometric Sensitivity to Soil Moisture

    Publication Year: 1983 , Page(s): 51 - 61
    Cited by:  Papers (35)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (3701 KB)  

    The reduction in sensitivity of the microwave brightness temperature to soil moisture content due to vegetation cover is analyzed using airborne observations made at 1.4 and 5 GHz. The data were acquired during six flights in 1978 over a test site near Colby, Kansas. The test site consisted of bare soil, wheat stubble, and fully mature corn fields. The results for corn indicate that the radiometri... View full abstract»

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  • Electromagnetic Backscattering from a Layer of Vegetation: A Discrete Approach

    Publication Year: 1983 , Page(s): 62 - 71
    Cited by:  Papers (64)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (2611 KB)  

    Electromagnetic backscattering from a layer of vegetation over a flat lossy ground is studied. The vegetated region is composed of leaves which are modeled by lossy circular dielectric discs with prescribed orientation statistics. The mean field in the layer is computed by using the Foldy approximation and a two-variable technique which is valid for small fractional volume. Simple expressions are ... View full abstract»

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  • Maximum-Likelihood Seismic Deconvolution

    Publication Year: 1983 , Page(s): 72 - 82
    Cited by:  Papers (31)  |  Patents (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (2628 KB)  

    The purpose of this paper is to describe a broad spectrum of seismic deconvolution problems and solutions which we refer to collectively as maximum-likelihood (seismic) deconvolution (MLD). Our objective is to perform deconvolution and wavelet estimation for the case of nonminimum phase wavelets. Our approach is to exploit state-variable technology, maximum-likelihood estimation, and a sparse spik... View full abstract»

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  • Improved Wavenumber Resolution for Small Arrays

    Publication Year: 1983 , Page(s): 83 - 93
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (3053 KB)  

    The objective of the method described is to compute the Fourier transform of a function of space and time with a significant improvement in the resolution of spatial frequencies, particularly in the case of small arrays for which the size of the array is on the order of one wavelength (or less). This improvement is initially developed by considering the conversion of spatial frequency into tempora... View full abstract»

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  • Spatial Reasoning in Remotely Sensed Data

    Publication Year: 1983 , Page(s): 94 - 101
    Cited by:  Papers (6)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (7123 KB)  

    Photointerpreters employ a variety of implicit spatial models to provide interpretations from remotely sensed aerial or satellite imagery. The process of making the implicit models explicit and the subsequent use of the explicit models in computer processing is difficult. In this paper one application is illustrated: how ridges and valleys can be automatically interpreted from LANDSAT imagery of a... View full abstract»

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  • On Resolution in Geophysical Probing Using Electromagnetic Methods

    Publication Year: 1983 , Page(s): 102 - 108
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    A model of a surface magnetic loop induction scheme over a two layer earth with fixed parameters, is developed. Using this model, formulas and curves are presented which determine the number of measurements N required to achieve a knowledge of the depth of burial D of a basement layer to within a specified tolerance ¿D. It is shown that the condition N >> D/(¿¿s) where ¿s is the quasi-static s... View full abstract»

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  • Resistivity Response of a Homogeneous Earth with a Contained Vertical Conductor

    Publication Year: 1983 , Page(s): 109 - 113
    Cited by:  Papers (3)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1479 KB)  

    Using a simple model, we illustrate the influence of a cylindrical conductor on the apparent resistivity for a two-electrode array on a otherwise homogeneous earth. In the formulation, the cylindrical conductor is assumed to be of infinite length. However, by exploiting a simple image plane concept, the solution is applicable to the case where the electrodes are on the surface of a homogeneous hal... View full abstract»

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  • Antenna Effects in Depolarization Measurements

    Publication Year: 1983 , Page(s): 113 - 117
    Cited by:  Papers (4)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (2386 KB)  

    The depolarization of electromagnetic energy scattered from natural terrain has been of interest to experimenters and theoreticians for many years. However, the reported measurements have not agreed with theoreticaly predicted results. Boresight axial ratio has commonly been used as a figure of merit to describe the polarization isolation properties of the measurement system antennas. Since depola... View full abstract»

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  • Improved Spatial Mapping of Rainfall Events with Spaceborne SAR Imagery

    Publication Year: 1983 , Page(s): 118 - 121
    Cited by:  Papers (6)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (2467 KB)  

    The Seasat satellite acquired the first spaceborne synthetic-aperture radar (SAR) images of the earth's surface, in 1978, at a frequency of 1.275 GHz (L-band) in a like-polarization mode at incidence angles of 23 ± 30. Although this may not be the optimum system configuration for radar remote sensing of soil moisture, interpretation of two Seasat images of Iowa demonstrates the sensitivity of mic... View full abstract»

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  • An Essential Document, Now Revised And Expanded... American National Standard Metric Practice

    Publication Year: 1983 , Page(s): 122
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  • IEEE copyright form

    Publication Year: 1983 , Page(s): 123 - [123]-a
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  • Information for authors

    Publication Year: 1983 , Page(s): [123]b
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  • Institutional listings

    Publication Year: 1983 , Page(s): 123c
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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