Ionospheric Irregularities: HAES Program Support. HAES Report No. 29.

• Main Author: Sears,Robert D.
• Other Authors: LOCKHEED MISSILES AND SPACE CO INC PALO ALTO CALIF PALO ALTO RESEARCH LAB
• Format: Text
• Language: English
• Published: 1975
• Subjects: Atmospheric Physics; Atomic and Molecular Physics and Spectroscopy; *AURORAE; *PHOTOMETRY; *IONOSPHERIC DISTURBANCES; MATHEMATICAL MODELS; ATMOSPHERIC MOTION; SODIUM; EMISSION SPECTRA; TRANSPORT PROPERTIES; PARTICLES; OXIDES; VISIBLE SPECTRA; INFRARED RADIATION; UPPER ATMOSPHERE; GAS IONIZATION; LINE SPECTRA; HYDROGEN COMPOUNDS; D REGION; HAES program; Icecap operation; Acoustic gravity waves; Nuclear explosion effects; Hydroxyl ion; Remote sensing; E region; F region; Ice cap; Alaska
• Online Access: http://www.dtic.mil/docs/citations/ADA023468; http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA023468

Photometric measurements of visible and near infrared emissions from the auroral ionosphere were made in support of the DNA HAES (High Altitude Nuclear Effects) experiments, ICE CAP and EXCEDE in Alaska during 1975. The intensity and motions of irregularities in the emission intensity were interpreted in terms of the energy deposit by precipitating particles and Joule Heating, and in terms of ionospheric irregularities in neutral density created by winds and acoustic gravity waves. A revised and upgraded model for computing ionospheric Joule heating in the auroral region from three beam photometer measurements of auroral motions is presented. Tentative results of experiments conducted in support of ICE CAP and EXCEDE rocket experiments are presented. Over 160 hours of photometric data obtained at the Chatanika, Alaska, field site during February through April 1975 is summarized.