THOMSON SCATTER RADAR DETECTION OF D-REGION NEGATIVE-IONS AT ARECIBO

被引：31

作者：

GANGULY, S

MATHEWS, JD

TEPLEY, CA

机构：

来源：

GEOPHYSICAL RESEARCH LETTERS | 1979年 / 6卷 / 02期

关键词：

D O I：

10.1029/GL006i002p00089

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

The Arecibo 430 MHz radar has been used to measure D region Thomson scatter power spectra which display bandwidth and power variations with altitude and solar zenith angle which are consistent with the presence of negative ions. The negative ion‐to‐electron number density ratio (λ−), electron density, and electron‐to‐ion temperature ratio (Te/Ti) have been derived from the spectral data and presented for noontime and sunset conditions. The λ− = 1 level is found to occur near 70 km at noon and near 80 km at sunset. Values of Te/Ti in the range 1.0 to 1.5, due to probing pulse heating, were observed. Copyright 1979 by the American Geophysical Union.

引用

收藏

页码：89 / 92

页数：4

相关论文

共 17 条

[1] NEGATIVE IONS IN LOWER IONOSPHERE - MASS-SPECTROMETRIC MEASUREMENT [J].

ARNOLD, F ;

KISSEL, J ;

KRANKOWSKY, D ;

WIEDER, H ;

ZAHRINGER, J .

JOURNAL OF ATMOSPHERIC AND TERRESTRIAL PHYSICS, 1971, 33 (08) :1169-+

[2] PRELIMINARY MEASUREMENTS OF ION COMPONENT OF INCOHERENT-SCATTER SPECTRUM IN 60-90 KM REGION OVER ARECIBO [J].

HARPER, RM .

GEOPHYSICAL RESEARCH LETTERS, 1978, 5 (09) :784-786

[3] EFFECT OF NEGATIVE-IONS ON THOMSON SCATTERING IN PRESENCE OF ELECTRON HEATING [J].

MATHEWS, JD ;

BEKENY, FS .

GEOPHYSICAL RESEARCH LETTERS, 1978, 5 (11) :925-927

[4] MEASUREMENTS OF DIURNAL TIDES IN 80-KM TO 100-KM ALTITUDE RANGE AT ARECIBO [J].

MATHEWS, JD .

JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 1976, 81 (25) :4671-4677

[5] EFFECT OF NEGATIVE-IONS ON COLLISION-DOMINATED THOMSON SCATTERING [J].

MATHEWS, JD .

JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 1978, 83 (NA2) :505-512

[6]

MEIRA LG, 1971, J GEOPHYS RES, V76, P202

[7] MASS SPECTROMETRIC MEASUREMENTS OF NEGATIVE IONS IN D-REGIONS AND LOWER E-REGIONS [J].

NARCISI, RS ;

BAILEY, AD ;

LUCCA, LD ;

SHERMAN, C ;

THOMAS, DM .

JOURNAL OF ATMOSPHERIC AND TERRESTRIAL PHYSICS, 1971, 33 (08) :1147-&

[8] ION COMPOSITION MEASUREMENTS IN LOWER IONOSPHERE DURING NOVEMBER 1966 AND MARCH 1970 SOLAR ECLIPSES [J].

NARCISIS, RS ;

WLODYKA, LE ;

BAILEY, AD ;

PHILBRICK, CR .

JOURNAL OF ATMOSPHERIC AND TERRESTRIAL PHYSICS, 1972, 34 (04) :647-+

[9]

RASTOGI PK, 1976, 68 U ILL AER LAB AER

[10] EXPERIMENTAL AND THEORETICAL STUDY OF D-REGION .2. SEMIEMPIRICAL MODEL FOR MID-LATITUDE D-REGION [J].

ROWE, JN ;

MITRA, AP ;

FERRARO, AJ ;

LEE, HS .

JOURNAL OF ATMOSPHERIC AND TERRESTRIAL PHYSICS, 1974, 36 (05) :755-785