Accession Number : AD0727031


Title :   A Remote-Sensing Investigation of Four Mojave Playas


Descriptive Note : Environmental research papers


Corporate Author : AIR FORCE CAMBRIDGE RESEARCH LABS HANSCOM AFB MA


Personal Author(s) : Molineux, Carlton E ; Bliamptis, Emmanuel E ; Neal, James T


Full Text : http://www.dtic.mil/dtic/tr/fulltext/u2/727031.pdf


Report Date : 16 Apr 1971


Pagination or Media Count : 72


Abstract : Dry lakebeds (playas) in the Mojave Desert are often hard and flat enough to serve as natural landing areas for aircraft. However, the surface physical properties of moisture, strength, and microrelief can vary with seasonal or local conditions. It is desirable to develop methods for deterining and monitoring these properties and their variations. Airborne remote sensing enables collection of data on the reflectance, temperature, and emissivity of these surfaces that can be correlated with soil parameters. Four playas in the Mojave Desert that have a variety of surface properties were investigated. Airborne spectrophotography and thermal infrared imagery were obtained by overflights. Ground photometry and measurements of surface properties were obtained. Moisture-sensitive dyes were applied to one lakebed surface to evaluate the feasibility of monitoring its dryness through color changes apparent on the aerial photography. The report describes the results of the remote-sensing investigations and the correlation of photographic and imagery interpretation with actual surface conditions.


Descriptors :   *LANDING FIELDS , *PLAYAS , DENSITY , TERRAIN , SOILS , FEASIBILITY STUDIES , SURFACE PROPERTIES , INFRARED IMAGES , REFLECTIVITY , MOISTURE , DESERTS , PHOTOINTERPRETATION , AERIAL PHOTOGRAPHY , INFRARED PHOTOGRAPHY


Subject Categories : Terminal Flight Facilities
      Soil Mechanics


Distribution Statement : APPROVED FOR PUBLIC RELEASE