ISSN:0143-1161    

DOI:10.1080/01431168808954984

出版商:Taylor & Francis Group    

年代:1988

数据来源: Taylor

ISSN:0143-1161    

DOI:10.1080/01431168808954985

出版商:Taylor & Francis Group    

年代:1988

数据来源: Taylor

摘要:

Thermal infrared satellite imagery of the discharge from the Yukon River obtained on 5 July 1985 was compared with hydraulic theory for the dilution of buoyant surface jets. In a crossflow, the theory predicts that the plume will follow anx1/3trajectory wherexis distance alongshore, and that the plume temperature will decay according tox–1/6due to mixing with the receiving water. Measurements of the Yukon River discharge indicate very good agreement with the predicted trajectory, and less, but acceptable, agreement with the predicted dilution. Large scale thermal fronts are also observable in the thermal imagery; the fronts may be associated with excursions of the plume due to tidal currents.

ISSN:0143-1161    

DOI:10.1080/01431168808954986

出版商:Taylor & Francis Group    

年代:1988

数据来源: Taylor

摘要:

A model developed for radiative transfer in the atmosphere-sea system is applied to remotely-sensed radiances to evaluate its applicability in the determination of atmospheric turbidity. Data measured at different atmospheric turbidities over clear sea water by a multispectral scanner installed on an aeroplane have been used. Comparisons of aerosol optical thicknesses obtained from remotely-sensed data and from ground-based atmospheric transmittancc measurements are given and discussed.

ISSN:0143-1161    

DOI:10.1080/01431168808954987

出版商:Taylor & Francis Group    

年代:1988

数据来源: Taylor

摘要:

A method of extracting different crop information more effectively, by applying principal component analysis to a three-dimensional three-date Landsat TM data space, has been developed. Landsat TM data obtained on 7 June, 9 July and 26 August 1984 were used to examine the approach, and the results fully demonstrated its advantages over other methods of keeping classification accuracy without any calibrations for multitemporal Landsat data.

ISSN:0143-1161    

DOI:10.1080/01431168808954988

出版商:Taylor & Francis Group    

年代:1988

数据来源: Taylor

摘要:

Thematic classification of remotely-sensed data assumes that class separability is aspatial. However, as classifiers discriminate between classes on the basis of their spectral responses this assumption is invalid since the latter vary spatially with the viewing geometry. Consequently classification accuracy is spatially variable. Classification accuracy statements can therefore over- and under-estimate inter-class discrimination at different locations within a scene and can therefore be misleading. This is illustrated by a classification of synthetic aperture radar data which had an aggregate accuracy of 75-7 per cent but also displayed a variation in accuracy between locations of up to 17-2 per cent.

ISSN:0143-1161    

DOI:10.1080/01431168808954989

出版商:Taylor & Francis Group    

年代:1988

数据来源: Taylor

ISSN:0143-1161    

DOI:10.1080/01431168808954990

出版商:Taylor & Francis Group    

年代:1988

数据来源: Taylor

ISSN:0143-1161    

DOI:10.1080/01431168808954991

出版商:Taylor & Francis Group    

年代:1988

数据来源: Taylor

摘要:

Digital filtering of aerial Multispectral Scanner data using the Haar transform has been attempted for a part of Cambay Basin in India for the extraction of linear and anomalous patterns. In addition, a typical pattern has been generated to assess the capability of filtering the linears. The results show that the major drainage as well as lineament patterns are extracted by digital filtering techniques.

ISSN:0143-1161    

DOI:10.1080/01431168808954992

出版商:Taylor & Francis Group    

年代:1988

数据来源: Taylor

摘要:

The new Special Sensor Microwave Imager (SSM/I) is introduced, and its global data acquisition pattern illustrated. Through an image for the morning of 29 July 1987 covering north-western Europe in general, and southern Britain in particular, its rainfall monitoring potential is illustrated and explained. An initial comparison with digital outputs from the FRONTIERS radar system of the U.K. Meteorological Office is presented, revealing very promising spatial correspondences between SSM/I and radar-derived rain areas.

ISSN:0143-1161    

DOI:10.1080/01431168808954993

出版商:Taylor & Francis Group    

年代:1988

数据来源: Taylor