Showing papers in "Remote Sensing of Environment in 1978"

TL;DR: The remote sensing sampling strategy presented has the added advantage that it can easily be adapted for use with most forms of remote sensing imagery, including orbital data, and provides a reliable framework for testing the accuracy of any remote sensing image interpretation — based land use classification using the minimum number of sample points.

TL;DR: In this paper, a data acquisition and analysis program has been undertaken to demonstrate the feasibility of remote multispectral techniques for monitoring suspended sediment concentrations in natural water bodies in Lake Mead.

TL;DR: In this paper, the results of an investigation to specify the parameters of a space-borne imaging radar for use in crop identification are discussed, and the results suggest that for best classification accuracy, a K-band (approximately 14 GHz), dual polarized system viewing fields at an off nadir angle in the 40° to 60° range should be employed.

TL;DR: In this paper, a simple photographic method for recording the polarisation of visible light reflected from natural surfaces is discussed along with applications. And it is felt that potential lies in the ability to determine soil moisture variation up to low or medium aircraft altitudes.

TL;DR: In this article, measurements of radar backscatter from bare soil at 9.0 GHz using a broad beam, with an effective beamwidth of product patterns and an incident angle of about 17° and 30°, respectively, have shown that the sensitivity of the cross-polarized (HV) return to soil moisture content was much higher than that of the like polarised ( HH ) one.

TL;DR: In this article, in situ collected spectral reflectance data from a dormant or senescent grass canopy showed a direct relationship existed between spectral reflectances and biomass for the 0.50-0.80 micron spectral region, which indicated that post senescent remote sensing of grass canopy biomass is possible and helps to elucidate the spectral contribution of recently dead vegetation in mixed live/dead canopy situations.

TL;DR: In this paper, the average variability of the reflected radiation field due to differing distributions of the irradiation in case of a savannah was given in a previous paper, and equivalent results are given for three more surfaces: bog, pasture land, and coniferous forest.

TL;DR: In this paper, the stress degree day technique for estimating yields of wheat from canopy and air temperature measurements is extended to handle forage production, and it was found to be valid in its extended form for four sequential cuttings of alfalfa grown at Phoenix, Arizona, over the period May-August 1976.

TL;DR: A Landsat image of part of the flooded area of Cooper Creek, Queensland, Australia, in February 1974, shows large dark areas within the flooded valley as mentioned in this paper, which are believed to be wet, but unflooded, areas of dark alluvial soil.

TL;DR: In this paper, an airborne laserfluorosensor was used to record fluorescence profiles of a controlled oil spill and of the river effluent from a pulp and paper mill, which exhibited excellent signal-to-noise ratios and ground resolution.

TL;DR: In this article, a special radiometer has been constructed to perform aerial measurements of ocean color in order to obtain the chlorophyll content of ocean water, and the spectral albedo at four wavelengths (466, 525, 550 and 600 nm) was measured during fourteen flights over the Gulf of Guinea in June and July of 1975.

TL;DR: In this paper, a multispectral scanner band 5 (0.6-0.7 μm) and band 7 (0,8-1.1 μm), along with images of the Mentese region of southwestern Turkey, were used to identify geologic formations, tectonic fault lines and geomorphologic slope contrast.

TL;DR: The authors showed that grain yield of a fall-planted spring wheat can be adequately estimated from the minimum albedo of the crop just prior to grain ripening, as long as complete ground cover is achieved.

TL;DR: In this paper, the authors describe recent advances in the development of thermal scanner technology, data processing techniques and theoretical simulation of field applications at the University of Newcastle, Australia, and describe the application of thermal scanning to Australian Geological, Hydrogeological and Hydrological problems.

TL;DR: This paper presents a multi-attribute method for comparing two lineament patterns and the results of a series of experiments are given to illustrate the range of coefficients of similarity or association that can be expected.

TL;DR: In this article, a time series of aerial photographs and LANDSAT imagery was used to analyze landforms, vegetation patterns, sediment and erosion sites, land use dynamics, settlement patterns and albedo in the coastal lowland swamps, rivers and estuarine areas of South Sumatra.

TL;DR: A chemical precipitation of calcium carbonate, or whiting, was first observed by satellite in Lake Michigan during August 1973 as discussed by the authors, and since that initial observation similar events have been noted in Lakes Michigan, Erie, and Ontario with imagery from Landsat, Skylab, and NOAA satellites.

TL;DR: In this paper, an analytical theory of electromagnetic wave scattering from an inhomogeneous medium with a slightly rough boundary surface is formulated, where the inhomogeneity in the medium is assumed to vary continuously in the vertical direction and to have a small random variation in the horizontal direction.

TL;DR: In this paper, the authors used first generation contrast stretched prints of MSS bands 4, 5 and 7 enlarged to 1:250,000 scale and also a color composite of these bands.

TL;DR: In this article, a model of human perception is presented which describes the results of a photointerpreter's annotation of discrete features in an image, such as geological lineaments.

TL;DR: In this article, the spectral classification of the lake's water, using remote sensing technique, has been found useful in charting the movement of different water masses within the lake, using multiannual and multi-spectral scanner (MSS) bands of LANDSAT satellite.

TL;DR: In this article, the success of a statistical classification-design sample model in discriminating cloud-type samples of visible and infrared meteorological satellite data depends on the selection of the design parameters for the system and the ability of the labelled design samples to characterize and discriminate class patterns within the given geographical region.

TL;DR: In this article, the feasibility of using thermal imagery to define frost prone zones during spring radiation frost conditions was examined in the Niagara fruit belt, and it was found that a potential frost prone zone exists below the escarpment in an area considered to be relatively free of such events.

TL;DR: In this paper, time series analysis of GOSSTCOMP satellite data, time differences in the occurrence of maximum and minimum mean monthly SST's off the coast of Brazil were observed in the region of 20-28° S by 34-47° W and showed the maximum surface water temperature to lag the coastal land station (Cananeia) by two months and the minimum by one month.

TL;DR: In this paper, the authors used aerial infrared photography to detect topographic changes in vegetation-induced sand dunes of the North Carolina Outer Banks, using the mutual interdependence of pioneer dune vegetation and wind-blown sand accumulation to predict growth and deflation patterns in vegetated coastal dune systems.

TL;DR: In this article, hand-held photographs from the Apollo spacecraft, taken over the eastern Gulf of Mexico in July 1975, are evaluated for their oceanic information, located over the open sea by comparing cloud formations in simultaneously acquired geostationary satellite visible imagery.

TL;DR: In this article, the use of radio interferometry, a method which has demonstrated this few-centimeter precision on land, is proposed as a means of making these sea-level measurements.

TL;DR: In this paper, the spectral dependence of aerosol optical depth at several wavelengths is calculated and compared with values obtained with a standard Model DA, two-channel (380 nm and 500 nm) sunphotometer currently in use in the EPA-NOAA network.