加藤/賢一

CNAと下部電離圏への降下電子エネルギーの関係

Kato/Kato

The relations between CNA and energy deposition by electron precipitation to lower ionosphere

著者名 Authors 所属機関名 所属機関名(欧文)
1 #加藤/賢一 Kato/Kato 通信総合研究所 Comminications Research Laboratory

講演予稿:
 PokerFLatのイメージングリオメータで観測されたCNAデータと共役 点がその視野にはいるDMSPで同時観測された30keV以下の電子フラッ クスデータを用いて, CNA現象時におけるCNAの吸収量と降下電子に よる下部電離圏でのエネルギー蓄積量の関係を明らかにする.

abstract:
 This study shows the relation between CNA and energy deposition by precipitating electron of more 10keV to lower ionosphere. It was analized with CNA data observed with Imaging Riometer at Poker Flat, Alaska and less 30keV electron flux data simultaneously observed on DMSP when it's conjugate point located at FOV of Imaging Riometer at PokerFlat. The relationships of absorption A (db) and incident electron energy P (W/m^2) was indicated as P(10-30keV)=0.21*10^(-3)*A(38.2MHz)^1.16. The coefficients of equationis different from the ones calculated theoretically by Stoker (1993) and Penman et al. (1979), P=0.5*10^(-2) *A(30.0MHz)^2.2 and P=0.5*10^(-2)*A(30.0MHz)^2.0.

キーワード:
電波吸収, エネルギー吸収, 電子降り込み, 下部電離圏

Keywords:
CNA, energy deposition, electron precipitation, lower ionosphere