Radar Altimeter Absolute Calibration Using GPS Water Level Measurements

نویسنده

  • Kai-chien Cheng
چکیده

........................................................................................................................iii PREFACE............................................................................................................................ v ACKNOWLEDGMENT.....................................................................................................vii

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

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Sea Level Determination Experiences at Cape of Begur Using Altimetry and Tide Gauges

Three Begur Cape experiences on radar altimeter calibration and marine geoid mapping made on 1999, 2000 and 2002 are overviewed. The marine geoid has been used to relate the coastal tide gauge data from l’Estartit harbour to off-shore altimetric data. The necessity to validate and calibrate the satellite’s altimeter due to increasing needs in accuracy and long term integrity implies establishin...

متن کامل

Ionospheric Calibration of Radar Altimeters Using GPS Tomography

We compare TEC measurements from the NASA Radar Altimeter and DORIS instrument on board TOPEX/POSEIDON with GPS TEC estimates , and evaluate diierent GPS data analysis strategies. We verify that global tomographic GPS analysis using a voxel grid is well suited for ionospheric calibration of altimeters. We show that a 1-day t of 20-second-averaged NRA ionospheric correction data versus GPS tomog...

متن کامل

Envisat Radar Altimeter Calibration with High-sea Gps Buoys

The environmental satellite ENVISAT was successfully launched by the European Space Agency ESA in March 2002 and carries among other sensors a radar altimeter which is capable of measuring the height between sea surface and satellite with a precision of a few centimetres. Unfortunately, radar altimeters of this kind exhibit a bias which cannot be determined à priori with help of laboratory meas...

متن کامل

GIST: A tool for Global Ionospheric Tomography using GPS ground and LEO data and sources of opportunity with applications in instrument calibration

Ionospheric tomography using GPS data has been reported in the literature and even the application to radar altimeter calibration was succesfully carried out in a recent work ( [1]). We here present a new software tool, called Global Ionospheric Stochastic Tomography software (GIST), and its powerful capability for ingesting GPS data from different sources (ground stations, receivers on board L...

متن کامل

4D Imaging of the Ionosphere using GPS data and an Application to Ionospheric Calibration of Radar Altimeters

We show how it is possible to combine GPS/MET oc-cultation data with ground data collected from 100+ IGS stations to perform stochastic tomography of the ionospheric electron content with a 3D global grid of voxels extending up to 2000 km above the mean surface of the Earth, and thus produce temporal series of 3D images of the ionospheric electron content. A correlation functional approach that...

متن کامل

ذخیره در منابع من


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

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

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2004