Improving Forecasting Ability of GITM Using Data‐Driven Model Refinement

نویسندگان

چکیده

At altitudes below about 600 km, satellite drag is one of the most important and variable forces acting on a satellite. Neutral mass density predictions in upper atmosphere are therefore critical for (a) designing satellites; (b) performing adjustments to stay an intended orbit; (c) collision avoidance maneuver planning. Density have great deal uncertainty, including model biases misrepresentation atmospheric response energy input. These may stem from inaccurate approximations terms Navier-Stokes equations, unmodeled physics, incorrect boundary conditions, or parameterizations. Two commonly parameterized source thermal conduction eddy diffusion. Both components transfer heat thermosphere. Determining how well major constituents (N2, O2, O) as conductors will effects temperature changes source. This work shows effectiveness using retrospective cost refinement (RCMR) technique at removing bias caused by different sources within Global Ionosphere Thermosphere Model. Numerical experiments, Challenging Minisatellite Payload Gravity Recovery Climate Experiment data during real events used show that RCMR can compensate both parameterizations drivers. eliminating before storm allows more accurate throughout storm.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

using c-test passages for improving reading comprehension ability and incidentally learned vocabulary of iranian efl learners

this study was an attempt to investigate the effect of using c-test passages on the reading comprehension and incidental vocabulary learning of iranian intermediate efl learners. the participants were 60 male efl learners at kish mehr institute in garmsar. in fact, there were two groups, an experimental group and a comparison group with 30 students in each. the participants were pretested throu...

15 صفحه اول

the use of appropriate madm model for ranking the vendors of mci equipments using fuzzy approach

abstract nowadays, the science of decision making has been paid to more attention due to the complexity of the problems of suppliers selection. as known, one of the efficient tools in economic and human resources development is the extension of communication networks in developing countries. so, the proper selection of suppliers of tc equipments is of concern very much. in this study, a ...

15 صفحه اول

mortality forecasting based on lee-carter model

over the past decades a number of approaches have been applied for forecasting mortality. in 1992, a new method for long-run forecast of the level and age pattern of mortality was published by lee and carter. this method was welcomed by many authors so it was extended through a wider class of generalized, parametric and nonlinear model. this model represents one of the most influential recent d...

15 صفحه اول

the effect of using model essays on the develpment of writing proficiency of iranina pre-intermediate efl learners

abstract the present study was conducted to investigate the effect of using model essays on the development of writing proficiency of iranian pre-intermediate efl learners. to fulfill the purpose of the study, 55 pre- intermediate learners of parsa language institute were chosen by means of administering proficiency test. based on the results of the pretest, two matched groups, one as the expe...

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Space Weather-the International Journal of Research and Applications

سال: 2023

ISSN: ['1542-7390']

DOI: https://doi.org/10.1029/2022sw003290