CAJ | 학술논문

Malkmus带模式在气候研究以及遥感应用中具有较高的应用价值，然而其计算精度不高。针对该问题，引入修正量对Malkmus模型进行改进。实验采用HITRAN2008谱线数据和美国空军地球物理实验室（AFGL）提供的6种大气模式计算垂直路径大气分子的透射率数据。在不同的大气模式下，以MODTRAN计算结果为参考标准，利用最小二乘拟合得到修正量并将其用于大气透射率补偿。相对于传统Malkmus模型，改进模型的透射率精度提高了1~2个数量级。结果表明，本方法不仅能有效地提高模型计算精度，而且适用于不同的大气模式和大气分子。
Malkmus대모식재기후연구이급요감응용중구유교고적응용개치，연이기계산정도불고。침대해문제，인입수정량대Malkmus모형진행개진。실험채용HITRAN2008보선수거화미국공군지구물리실험실（AFGL）제공적6충대기모식계산수직로경대기분자적투사솔수거。재불동적대기모식하，이MODTRAN계산결과위삼고표준，이용최소이승의합득도수정량병장기용우대기투사솔보상。상대우전통Malkmus모형，개진모형적투사솔정도제고료1~2개수량급。결과표명，본방법불부능유효지제고모형계산정도，이차괄용우불동적대기모식화대기분자。
The Malkmus band model has been widely used in remote sensing and climate studies. However, its accuracy is not high. To solve this problem, a modified Malkmus band model was proposed by introducing a correction item. The HITRAN (High-resolution TRANsmission) 2008 database and the atmospheric models provided by the Air Force Geophysics Laboratory (AFGL) were used to calculate the molecular transmittances. By fitting the calculated transmittances to those by MODTRAN (MODerate resolution atmospheric TRANsmission) package with the least-squares method, the fitting coefficients of the correction item were obtained under different atmosphere models. The experimental results show that the root mean square errors (RMSE) of the modified model are significantly less than that of the traditional Malkmus band model by 1-2 orders of magnitude. In addition, the modified method is suitable for different atmospheric models and molecules.