@techreport{oai:jaxa.repo.nii.ac.jp:00039812, author = {白水, 正男 and 末松, 俊二 and 山本, 一二三 and Shirouzu, Masao and Suematsu, Shunji and Yamamoto, Hifumi}, month = {Jul}, note = {飛行データの解析精度の向上には、飛行経路に沿った大気の状態量を知ることが重要である。極超音速飛行実験(HYFLEX)で用いた米国NOAA極軌道衛星の観測に基づく大気状態の推定法について述べる。本推定法の精度は、気象ロケット観測結果との比較により評価した。その結果、温度と圧力はU.S. Standard大気モデルを用いるより精度が相当改善され、特に高高度では誤差が数分の1に減少することが確認された。しかし、風の推定の精度は十分ではなく、これは圧力推定の誤差によるものと考えられる。, In flight data analyses, information on the state of the atmosphere (temperature, pressure, and wind) along flight trajectory is necessary for the improvement of accuracy. Estimation of the state of the atmosphere based on NOAA polar orbit satellite remote sensing-data, which was used in HYFLEX (Hypersonic Flight Experiment) flight data analyses, are described. The accuracy of the present estimation is evaluated by comparing, with meteorological rocket observations. It is concluded that temperature and pressure can be estimated by the present method much better than by depending on the U.S. Standard Atmosphere model, and that the error can be much reduced at higher altitudes. However, the accuracy of the estimation of speed and direction of wind were not satisfactory, and are considered to be due to error in pressure estimation., 資料番号: AA0000675000, レポート番号: NAL TM-700}, title = {NOAA極軌道衛星データに基づく上層大気状態の推定について}, year = {1996} }