Digital Commons Network^™

Definition Of Spectrally Separable Classes For Soil Survey Research, J. E. Cipra, P. H. Swain, J. H. Gill, M. F. Baumgardner, S. J. Kristof

LARS Technical Reports

Spectral classes defined by a Euclidean distance criterion have shown similarity to soil classes as mapped by the National Cooperative Soil Survey (local, state, and federal governments cooperating). However, two problems have occurred in past studies: 1) The number of spectral classes defined by the researcher is arbitrary. 2) Spectral properties of nonvegetated soils are modified by rainfall, cultivation, and other factors not directly related to the classes of interest for soil survey purposes.

This research outlines a procedure for defining spectral classes such that the differences between classes can be quantified. It also facilitates determination of a number of …

Calibration Of Aircraft Scanner Data Using Ground Reflectance Panels, Paul E. Anuta, William R. Simmons

LARS Technical Reports

An experiment is described in which aircraft scanner data from calibrated reflectance panels in the scene was used to calibrate the scanner data for nearby targets. The method used permits reflectance calibration of scanner data for areas which are in environmental proximity to the reflectance panels. That is, the calibration is valid for areas receiving the same illumination, from the same sun angle and for the same aircraft altitude. Atmospheric condition changes, cloud cover changes, different sun angles, and other environmental factor changes will alter the calibration and render the panel reference parameters invalid. The method described here is experimental …

Moire Patterns And Two-Dimensional Aliasing In Line Scanner Data Acquisition Systems, C. D. Mcgillem, T. E. Riemer

LARS Technical Reports

The basic mechanism underlying the generation of Moire patterns in line scanner data acquisition systems is examined. A general expression is developed in tern of typical system parameters for the reproduced image of such systems and the interaction of the image spectrum; the raster frequency and digital sampling frequency of the A/D conversion process are discussed and examples given. System design requirements for avoiding Moire pattern generation and two-dimensional aliasing are discussed.

Differentiating Elements Of The Soil-Vegetation Complex, M. F. Baumgardner

LARS Technical Reports

One of the most exciting prospects in the application of remote sensing technology is that of identifying, characterizing, measuring, and mapping different elements of the soil-vegetation complex. Important elements in this complex include soil properties, plant species, and the conditions of both soils and plants.

Conjugate Point Determination In Multitemporal Data Overlay, Richard A. Emmert, Claire D. Mcgillem

LARS Technical Reports

The machine processing of spatially variant multitemporal data such as imagery obtained at different times requires that these data be in geometrical registration such that the analysis processor may obtain the datum for a specified ground resolution element in each of the sets of imagery being utilized for analysis.

Misregistration between corresponding subsets of imagery contains both a displacement and a geometrical distortion component, and the affine transformation is postulated to characterize this misregistration between data subsets. Search techniques utilizing the moduli of the Fourier Transforms of these data are developed for estimating the coefficients of geometrical distortion components of …

Determining Density Of Maize Canopy: Iii. Temporal Considerations, E. R. Stoner, M. F. Baumgardner, P. E. Anuta, J. E. Cipra

LARS Technical Reports

Multispectral scanner data were collected In two flights over ground cover plots near the Purdue University Agronomy Farm's Weather Station at an altitude of 305 m. Energy in eleven reflective wavelength bands from 0.46 to 2.6 µm was recorded by the scanner. A set of eight ground reflectance panels was in close proximity to the ground cover plots and was used to normalize the scanner data obtained on different dates. The ground reflectance panels were used to relate laboratory reflectance measurements to scanner response. Separate prediction equations were obtained for both flight dates for all eleven reflective wavelength bands of …

Spectra Of Normal And Nutrient-Deficient Maize Leaves, A. H. Al-Abbas, R. Barr, J. D. Hall, F. L. Crane, M. F. Baumgardner

LARS Technical Reports

Reflectance, transmittance and absorptance spectral of "normal" and six types of nutrient-deficient (N, P, K, S, Mg, and Ca) maize (Zea mays L.) leaves were analyzed at 30 selected wavelengths from 500-2600 nm. The analysis of variance showed significant differences in reflectance, transmittance and absorptance in the visible wavelengths among leaf numbers 3, 4, and 5, among the seven treatments, and among the interactions of leaf number and treatments. In the infrared wavelengths only treatments produced significant differences.

The chlorophyll content of leaves was reduced in all nutrient deficient treatments. Percent moisture was increased in S-, Mg-, and N-deficiencies. Positive …

Thermally Insulated Test Road: State Road 26 Final Performance And Temperature Prediction Studies, James A. Horton

JTRP Technical Reports

No abstract provided.

The Nature Of The Past-Aggregate Interface : Interim Report, David Watson Hadley

JTRP Technical Reports

No abstract provided.

An Axiom System For The Weak Monadic Second Order Theory Of Two Successors, Dirk Siefkes

Department of Computer Science Technical Reports

No abstract provided.

A Simplex Algorithm - Gradient Projection Method For Nonlinear Programming, L. Duane Pyle

Department of Computer Science Technical Reports

No abstract provided.

Guidelines For Traffic Counts On County Roads, Eugene R. Russell, Jean E. Hittle

Indiana Local Technical Assistance Program (LTAP) Publications

This manual has been developed to provide county highway personnel with guideline procedures for counting traffic volumes. While the emphasis is on county roads, the procedures are equally applicable to any highway, road or street; therefore, city street and state highway personnel may also have an interest in the guideline procedures outlined herein.

The Prediction Of Running Speeds On Urban Arterial Streets, Kenneth Alan Shackman

JTRP Technical Reports

No abstract provided.

Travel Time And Accident Benefits Due To Reconstruction Of U.S. 52 Bypass At Lafayette, Indiana : Progress Report, Alexander Edward Mcneil

JTRP Technical Reports

No abstract provided.

Mechanical Methods Of Steel Placement For The Slipform Construction Of Continuously Reinforced Concrete Pavements : Technical Paper, Charles F. Scholer, Olubayo Timothy Olateju

JTRP Technical Reports

No abstract provided.

Techniques In Slipform Paving And Continuously Reinforced Concrete Pavement Construction, Olubayo Timothy Olateju

JTRP Technical Reports

No abstract provided.

Driver Information Systems For Highway-Railway Grade Crossings, Thomas Urbanik

JTRP Technical Reports

No abstract provided.

Practical Optimization Of Steel Highway Bridge Beams: Technical Paper, Robert Henry Busek, John Thixton Gaunt, A. D. Lewis

JTRP Technical Reports

No abstract provided.

An Effect Of 2, 4-D Herbicide On The Cell Surface Membrane Of Onion Stem Explants : Technical Paper, Willliam Jan Vanderwoude, Carole A. Lembi, D. James Morré

JTRP Technical Reports

No abstract provided.

Traffic Speed Report No. 89 : Progress Report, Wing-Kwong Law, George K. Stafford, Bronson Luttrell

JTRP Technical Reports

No abstract provided.

Indiana's Plan For Recuitment And Retention Of Engineering Personnel, Gene K. Hallock

Purdue Road School

No abstract provided.

Possible Applications Of Computers For Transportation, Kenneth W. Heathington

Purdue Road School

No abstract provided.

The Total Asphalt Pavement For Roads, Streets, And Parking Areas, John S. Spangler

Purdue Road School

No abstract provided.

Governmental Cooperation In Transportation Activities: Federal-State-Local Relations In Road Building, James R. Williamson

Purdue Road School

No abstract provided.

One Year Of Vehicle Inspection, John A. Annarino

Purdue Road School

No abstract provided.

Indianapolis New Department Of Transportation: Part Ii-B:: Management Of Street Improvement Projects - Design And Construction Section, Dennis M. Neidigh

Purdue Road School

No abstract provided.

Indianapolis New Department Of Transportation: Part Iii-B:: County-Wide Snow And Ice Control Program - Practical Application Of The Program, John A. Cook

Purdue Road School

No abstract provided.

Organizing Blacktop Maintenance Operations, Charles D. Miller

Purdue Road School

No abstract provided.

Methods Of Perpetuation Of Indiana's Section Corners, John G. Mcentyre

Purdue Road School

No abstract provided.

Development Of A County Grade Crossing Protection Program, Eugene R. Russell

Purdue Road School

No abstract provided.