Accession Number:

ADA370384

Title:

Comparison of Atmospheric Transmittance Measurements in the 3-5 Micrometers and 8-12 Micrometers Spectral Regions With MODTRAN: Consideration for Long Path Geometries.

Descriptive Note:

Final research rept.,

Corporate Author:

INSTITUTE FOR ADVANCED RESEARCH AND DEVELOPMENT NESHER ISRAEL

Personal Author(s):

• Devir, Adam D.

Report Date:

1999-06-01

Pagination or Media Count:

78.0

Abstract:

Radiance measurements conducted during tropospheric operations to detect objects on the Earths surface from a manned aircraft or from an unmanned airborne vehicle UAV will involve long, near-horizontal viewing geometries. The computer code MODTRAN is widely used for the prediction of the propagation of infrared radiation through the lower atmosphere. This program was undertaken by the IARD to test and validate the predictions of the MODTRAN code for the 3-5 micrometer and 8-l2 micrometer spectral regions under semi-arid desert conditions with well defined meteorological parameters.

Descriptors:

• *METEOROLOGICAL PHENOMENA
• *INFRARED RADIATION
• *ATMOSPHERIC PHYSICS
• COMPUTER PROGRAMS
• MEASUREMENT
• AIRCRAFT
• PATHS
• TRANSMITTANCE
• RADIANCE
• UNMANNED
• HORIZONTAL ORIENTATION
• EARTH SURFACE
• TROPOSPHERE
• MANNED
• ATMOSPHERES
• LOW ALTITUDE

Subject Categories:

• Atmospheric Physics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE