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Showing papers in "Remote Sensing of Environment in 1974"


Journal ArticleDOI
TL;DR: In this paper, the authors discussed the possible cause-effect relationships in producing vegetation canopy reflectance and the effects of these parameters on vegetation canopy bidirectional spectral reflectance in many situations.

431 citations


Journal ArticleDOI
TL;DR: In this paper, the authors found that the ratio of the reflectances of the 545-nm to to the 655-nm wavebands provides information about the viewed surface, regardless of the crop.

126 citations


Journal ArticleDOI
TL;DR: A procedure for extracting some easily computable features for the texture of blocks of digital image data and illustrates the applications of combined textural (spatial) and spectral features for identifying the land use categories of Blocks of ERTS MSS (Earth Resources Technology Satellite Multi Spectral Scanner) data.

116 citations


Journal ArticleDOI
TL;DR: In this article, the authors interpreted ERTS-1 and Skylab imagery with the help of ground truth collected during overpasses to study vegetation, land use, current circulation, water turbidity, and ocean waste dispersion.

79 citations


Journal ArticleDOI
TL;DR: In this article, measurements of radar backscatter from bare soil at 4.7, 5.9 and 7.1 GHz for incident angles of 0-70 deg have been analyzed to determine sensitivity to soil moisture.

75 citations


Journal ArticleDOI
TL;DR: In this paper, a study of the Burning Mountain coal fire was carried out using an airborne optical-mechanical-scanner operating in the infrared wavelengths, with supplementary ground temperature studies.

71 citations


Journal ArticleDOI
TL;DR: In this article, a method of coordinated scanning which makes use of two Doppler radars and a procedure of data reduction is described, where two radar estimates of radial velocity of the precipitation particles are combined with the equation of mass continuity and an independent estimate of the mean particle-fall velocity.

67 citations


Journal ArticleDOI
TL;DR: In this article, an aircraft was used to obtain correlative thermal-IR and additional multiband photographs of Lake Erie to verify the Great Lakes bloom, which was then used to augment the Earth Resources Technology Satellite (ERTS-1) data.

60 citations


Journal ArticleDOI
TL;DR: In this article, a methodology for estimating the population size of four cities in California, consisting of a simple function relating the measured area of three dominant residential land use types and the characteristic spatial population densities associated with each.

48 citations


Journal ArticleDOI
TL;DR: In this article, the magnetic digital tapes of the imagery obtained by ERTS-A on September 23, 1972, have been analyzed for selected areas of the Potomac River.

42 citations


Journal ArticleDOI
TL;DR: Multispectral scanner data from Earth Resources Technology Satellite-1 (ERTS-1) showed a high correlation between crop growth and MSS4/MSS5, and crop growthand MSS5/M SS6, but Wheat disease severity and yields were significantly correlated at the 5% level with MSS 4/Mss6 and with M SS4/ MSS7.

Journal ArticleDOI
TL;DR: In this article, five studies of the Upper Truckee River sediment plume in Lake Tahoe were conducted in California-Nevada using aerial photography and simultaneous measurements in the lake.

Journal ArticleDOI
TL;DR: In this paper, the results of analysis of Earth Resources Technology Satellite imagery of Israel and its vicinity are presented in the fields of arid regions vegetation studies, oceanography, atmospheric and cloud studies, pollution observations, geology, and geomorphology.

Journal ArticleDOI
TL;DR: In this paper, a low-pass, two-dimensional filter kernel, designed to be 6 db down at 10 scanspots, effectively eliminates the six-line banding caused by the multispectral scanner design.


Journal Article
TL;DR: In this paper, the Raman shifted return of a lidar system has been used to make atmospheric temperature measurements along a horizontal path at temperatures ranging from -30 C to +30 C and at ranges of about 100 meters.

Journal ArticleDOI
R. Kumar1, L. Silva1
TL;DR: In this article, a study was conducted to determine the statistical separability of multispectral measurements from corn having varying levels of southern corn leaf blight severity, and the statistical analysis of the values of average transformed divergence was concluded that the greater the difference between the blight levels, the more statistically separable they are.

Journal ArticleDOI
TL;DR: In this paper, the feasibility of using the data collection system on ERTS-1 to predict wheat leaf rust severity and resulting yield loss was tested, and the results showed that a 9% decrease in yield was predicted by the DCP derived data; actual decreases were 12% and 9%.

Journal ArticleDOI
G. Schaerer1
TL;DR: The ability of a 3.3-mm radiometer to produce thermal images with a 10 arc-minutes resolution on a real-time display has been proved in this paper.

Journal ArticleDOI
TL;DR: In this paper, a portable field-averaging spectrograph suitable for carrying into the field and recording the spectral content of remote objects has been designed and constructed such that it can be readily attached to an existing SLR camera fitted with a Macro Copy lens.


Journal Article
TL;DR: In this paper, the design, construction, and testing of a four-channel microwave radar imaging system are described, including the receiver, transmitter, recorders, and the general timing circuitry.

Journal ArticleDOI
TL;DR: In this paper, a global linear conformal transformation for each slave picture is used to segment the corresponding image into regions such that, for the implementation of the correction, all pixels within a region can be shifted by the same number of rows and columns.


Journal ArticleDOI
TL;DR: In this article, the reflection spectra of various natural formations have been obtained by means of the handheld spectrograph RSS-2 during the “Soyuz-9” flight, and the parameters of the atmospheric transfer operator were computed.

Journal Article
TL;DR: A radar mapping mission to Venus is under consideration by NASA for the 1980s as discussed by the authors, where the science objectives of the mission are to determine the geologic history of the planet; map the major topographic features and provide limited detailed geologic and terrain analysis of potential probe landing sites.

Journal Article
TL;DR: The objective of this investigation has been to verify the feasibility of an orbital microwave holographic radar experiment, and it is clear that along-track resolution of an MHR can be comparable with SLAR systems, but cross-trackresolution will be approximately an order of magnitude coarser than the range resolution achievable with an arbitrary SLAR system.