Statistical characteristics analysis of global specific humidity vertical profile

Shuang Luo; Liuni Yang; Jingjing Liu

doi:10.1117/12.2544132

12 March 2020 Statistical characteristics analysis of global specific humidity vertical profile

Shuang Luo, Liuni Yang, Jingjing Liu

Proceedings Volume 11439, 2019 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Systems; 1143911 (2020) https://doi.org/10.1117/12.2544132
Event: 2019 International Conference on Optical Instruments and Technology, 2019, Beijing, China

Abstract

Studies on the spatial and temporal distribution characteristics of global atmospheric profiles are currently limited. In this study, we analyzed the statistical characteristics of the mean and standard deviation of global specific humidity vertical profiles during 1979 to 2016, using ERA-Interim monthly means of daily means reanalysis data published by the European Centre for Medium-Range Weather Forecasts (ECMWF). The results are as follows. (1) The mean and standard deviation of the specific humidity profiles exponentially decrease with height. (2) There are latitudinal and seasonal differences in both the Northern and Southern Hemispheres. The specific humidity is higher in low latitudes than in high latitudes, and the summer is the wettest and the winter is the driest. (3) The mean and standard deviation of specific humidity are larger over the ocean than over land in the lower atmosphere. This study provides support for evaluating the application performance, radiation transmission algorithm and atmospheric inversion method of new satellite instruments. It can also be used to update and complete current standard atmospheric profiles, and for their comparative analysis.

Citation Download Citation

Shuang Luo, Liuni Yang, and Jingjing Liu "Statistical characteristics analysis of global specific humidity vertical profile", Proc. SPIE 11439, 2019 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Systems, 1143911 (12 March 2020); https://doi.org/10.1117/12.2544132

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
9 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Humidity

Statistical analysis

Atmospheric modeling

Satellites

Earth's atmosphere

Infrared radiation

Standards development

Show All Keywords

Keywords/Phrases

Search In:

Publication Years