Beijing Climate Center

tools

Wind Field				Height Field		Sea Level Pressure	Water Vapor Transport	Walker Circulation
Vector Wind	Zonal Wind	Meridional Wind	Vertical Velocity	500hPa	Other Levels	Sea Level Pressure	Water Vapor Transport	Walker Circulation

Mean field and anomaly field
Year From Month Day End Month Day Level
LAT/LON Projection: Latitude（-90~90）FromTo Longitude（0~360）FromTo
Northern polar projection
（The color shadow area is the anomaly field, the contour line is the average field, and the thick red line in the 500hPa circulation field is the 588 line of the climate average.）

Climate state (1981-2010 mean)
From Month Day End Month 日 Level
LAT/LON Projection: Latitude（-90~90）FromTo Longitude（0~360）FromTo
Northern polar projection

Illustrate:
The data used are NCEP daily atmospheric circulation data, latitude and longitude 2.5°*2.5°, and the climate field data are from LTM data provided by NCEP from 1981 to 2010.