Retrieval and validation of atmospheric vertical temperature profile from satellite's microwave sounding

Yingzhi Wei; Jianmin Xu

doi:10.1117/12.619738

12 May 2005 Retrieval and validation of atmospheric vertical temperature profile from satellite's microwave sounding

Yingzhi Wei, Jianmin Xu

Proceedings Volume 5832, Optical Technologies for Atmospheric, Ocean, and Environmental Studies; (2005) https://doi.org/10.1117/12.619738
Event: Optical Technologies for Atmospheric, Ocean, and Environmental Studies, 2004, Beijing, China

Abstract

The paper is intended to retrieve atmospheric temperatures from AMSU soundings by a combined physical-statistical scheme and a regression model is established on weighting functions of AMSU channels 3-14 calculated by the Liebe model (Liebe 1981, 1985) and the normalized weighting functions are employed as its constraints and the optimal solution is obtained by appropriately adjusting the constraints. Results show that when nadir AMSU samples are adopted the constrained regression algorithm yields higher retrieval accuracy with the root-mean-square error of 0.4 K (1.0 K) below (at and above) 100 hPa. By the same algorithm a limb adjustment is made of off-nadir fields of view. For atmospheric sounding channels 4l4 (frequencies of 52.8-57.29 GHz) the maximum deviation is thereby decreased to 0.9 K from -l5-5 K. Retrieved temperatures are utilized to investigate the warm-core structures of 15 tropical cyclones making landfall in China mainland during 2002 and 2003 indicating that retrievals have ability to reveal clearly the structure and better correlativity of the temperature anomaly to the surface central wind speeds and the sea-level central pressures ofcyclones. As a reference therefore the correlation is of utility to forecasting.

Citation Download Citation

Yingzhi Wei and Jianmin Xu "Retrieval and validation of atmospheric vertical temperature profile from satellite's microwave sounding", Proc. SPIE 5832, Optical Technologies for Atmospheric, Ocean, and Environmental Studies, (12 May 2005); https://doi.org/10.1117/12.619738

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
13 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Atmospheric modeling

Microwave radiation

Satellites

Temperature metrology

Absorption

Atmospheric physics

Error analysis

Show All Keywords

Keywords/Phrases

Search In:

Publication Years