Ms. Dan-hua Li Profile

Dan-hua Li

SPIE Involvement:

Author

Publications (1)

This will count as one of your downloads.

You will have access to both the presentation and article (if available).

DOWNLOAD NOW

This content is available for download via your institution's subscription. To access this item, please sign in to your personal account.

Email or Username Forgot your username?

Password Forgot your password?

Show

Keep me signed in

No SPIE account? Create an account

Proceedings Article | 24 October 2018 Paper

The fact and causes of warm-dry and warm-wet change since 1971 in HEXI corridor area of Gansu Province, China

Shu Lin, Li-Wei Liu, Dan-hua Li, Guo-Yang Lu

Proceedings Volume 10776, 1077617 (2018) https://doi.org/10.1117/12.2324617

KEYWORDS: Humidity, Climatology, Meteorology, Climate change, Statistical analysis

Read Abstract +

Based on daily precipitation data of 19 weather stations from 1971~2017 over the Hexi Corridor in Gansu, characteristics of three analytical elements (precipitation, rain days and precipitation intensity) were analyzed. Results show that precipitation in the whole Hexi Corridor increases significantly in the autumn, and the winter precipitation in the east of Jiuquan to Zhangye also increases significantly. Rainy days in summer decreases significantly, while increases significantly in autumn. The extreme events using the three analytical elements account for 56% in 2000s, showing a significant increase. It accounted only for 16%, 10%, and 18% in 1970s, 1980s and 1990s respectively. Seasonal variability of the extreme events is also significant, i.e., 70% in summer, 60% in autumn, 50% in spring and winter. The frequency of the three analytical extreme events since 2000s is about half of that since 1971.Potential causes of the interdecadal changes of summer and autumn precipitation in 1990s and 2000s were investigated. There are obvious interdecadal variation in 200 hPa and 500 hPa geopotential heights, as well as the 700 hPa relative humidity and specific humidity. This variation leads to more autumn precipitation and less summer precipitation in 2000s.

My Library

You currently do not have any folders to save your paper to! Create a new folder below.

Folder Name

Folder Description

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks. You are receiving this notice because your organization may not have SPIE eBooks access.*

*Shibboleth/Open Athens users─please sign in to access your institution's subscriptions.

To obtain this item, you may purchase the complete book in print or electronic format on SPIE.org.

ORGANIZATIONAL
Sign in with credentials provided by your organization.

Organizational Username

Organizational Password

Show/Hide Password

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:

Non-members: ADD TO CART

Keywords/Phrases

Search In:

Publication Years