ASCAT-B NWP Ocean Calibration and Validation

نویسندگان

  • Jeroen Verspeek
  • Anton Verhoef
  • Ad Stoffelen
چکیده

On September 17, 2012 the Metop-B satellite with onboard the Advanced Scatterometer (ASCAT-B) has been successfully launched. For the ASCAT-B scatterometer, corrections are derived with the use of the NWP ocean calibration (NOC). These corrections are used in the ASCAT wind data processor in order to obtain high-quality winds. The NOC-calibrated ASCAT-B wind product is examined and its quality appears on the same level as that of the ASCAT-A wind product.

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

Ascat B Ocean Calibration and Wind Product Results

The EUMETSAT Metop-B satellite with onboard the Advanced Scatterometer (ASCAT) has been successfully launched on September 17, 2012. ASCAT-B onboard Metop-B is identical to the already operational scatterometer ASCAT-A onboard Metop-A which was launched in 2006. KNMI has further developed an ocean calibration method for ASCAT-A, based on Numerical Weather Prediction (NWP) wind inputs, the so-ca...

متن کامل

Ascat Scatterometer Calibration over the Ocean: Analysis of the 3-dimensional Measurement Space

A new scatterometer, the so-called Advanced scatterometer (ASCAT), onboard MetOp-A satellite was successfully launched on October 19 2006. During the commissioning phase one of the main goals is to accurately calibrate the instrument. The radar backscatter has been calibrated using three groundbased transponders only in February 2008. However, stable and good quality ASCAT winds are produced ro...

متن کامل

Validation and Analysis of Ocean Parameters Using Ascat Data

This project aims to investigate the quality of ASCAT measurements as well as their use for oceanographic purposes. The accuracy of ASCAT retrievals will be mainly based on the use of collocated data from moored buoys, numerical weather prediction models, and satellites. The resulting collocated data will be used to explore the accuracy of the geophysical model function which relates the backsc...

متن کامل

Calibration and Validation of ASCAT Winds

Based on the OSI SAF cone visualisation tools at KNMI and the NOC corrections, calibration of the ASCAT scatterometer is checked. In this report we describe and evaluate level 1b corrections to the operational L1b ASCAT backscatter data version PPF740 as provided by EUMETSAT based on their three transponder calibration campaign. For the left mid antenna an offset in ocean calibration results ha...

متن کامل

Mesoscale winds from the new ASCAT scatterometer

Introduction satellite based scatterometers provide high resolution all-weather wind vector fields over the seas. Wind speed and wind direction are provided at high accuracy under all weather conditions. The allweather EsA ERs scatterometer observations have proven its significant impact for the forecasting of fast developing and severe weather. Moreover, scatterometer wind fields are provided ...

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 2013