Kraus, G. L. | Search NASA

NASA NTRS1976

Large Area Crop Inventory Experiment (LACIE). Evaluation of multitemporal data enchancements for the identification of winter wheat fields

There are no author-identified significant results in this report.

Kraus, G. L.↗

NASA NTRS1975

Large Area Crop Inventory Experiment (LACIE). Effect of sun angle and haze on generation of LANDSAT imagery

The author has identified the following significant results. When heavy haze was present over a nonvegetated scene, the mean radiance values for all MSS channels were lowered, with the greatest decrease occurring in channels 1 and 2. Over a vegetated scene, any apparent decrease in mean radiance values due to haze may be marked by an increase in mean radiance values which occurred as vegetation increased in vigor during its growth cycle. Mean radiance values for nonvegetated targets (except water) were closely correlated to the changes in sun elevation angle throughout the year. A sun angle correction to a fixed reference data appeared to offer the possibility of compensating for haze covered areas by predicting the mean radiance values which would be closely correlated to the normal sun declination curve.

Chesnutwood, C. M.↗

NASA NTRS1967

Venus and Mars nominal natural environment for advanced manned planetary mission programs

Nominal natural environment values for advanced manned planetary space flights to Venus and Mars

MARS ENVIRONMENT↗

NASA NTRS1965

Venus and mars nominal natural environment for advanced manned planetary mission programs

Planetary environmental design data for future manned space flights to Venus and Mars

MANNED SPACE FLIGHT↗

NASA NTRS1963

Major meteoroid streams

Scale model meteoroid streams with data on particle density, size, velocity, and orbital elements

Kraus, G. L.↗