README file for the sounding of water vapor, ozone, particles (SWOP) balloon sounding data in Lijiang China.



Corresponding Authors: 

Jianchun Bian

Key Laboratory of Middle Atmosphere and Global Environment Observation,

Institute of Atmospheric Physics, Chinese Academy of Sciences

bjc@mail.iap.ac.cn



Co-author:

Dan Li

Key Laboratory of Middle Atmosphere and Global Environment Observation,

Institute of Atmospheric Physics, Chinese Academy of Sciences

lidan@mail.iap.ac.cn



The water vapor, ozone, and Cobald dataset were stored in *.txt file.

The pops particles were stored in *.csv file.



Three balloon soundings with the electrochemical concentration cell (ECC) ozonesonde, the Cryogenic Frost Point Hygrometer (CFH), the Cobald, and the Portable Optical Particle Spectrometer (POPS) were launched in Lijiang China in August 2022. Each sounding equipped with a Intermet iMet radiosonde to measure the air temperature, pressure, relative humidity, and wind and collected data per second. The launched information for each balloon could be found in table 1.



table 1: balloon launched in formation



Date                 Launch time   Flight No.      Instrument                     Burst altitude

 (dd/mm/yyyy)    (UTC)

22/08/2022           18:36           lj011         ECC/CFH/Coblad/POPS            33.93

23/08/2022           17:15           lj012         ECC/CFH/Coblad/POPS            33.94

30/08/2022           15:10           lj013         ECC/CFH/Coblad/POPS            27.9





******** ECC O3 Variables ********



	Short Name	Long Name		   Unit

	-----------------------------------------------------------------------------

	O3_PP		Ozone Partial Pressure	  Millipascal (mPa)

	O3_VMR		Ozone Volume Mixing Ratio	  Parts per million by volume (ppmv)







*******CFH Variables******

 	Short Name	Long Name		  Unit

	-----------------------------------------------------------------------------

	TFpHyg                    frost point temperature            degree (C)

                H2O Mr		Water Vapor Mixing Ratio	Parts per million by volume (ppmv)

	RHFP		Relative Humidity		Percent w.r.t ice

	Fl	                CFH Quality Flag		1=good; 0=contaminated



******Cobald******

 	Short Name	Long Name		  Unit

	-----------------------------------------------------------------------------

	Co BlueS                  cobald blue signal              counts

	Co RedS                   cobald red signal               counts

	Co BlueM                 cobald blue monitor          counts

	Co RedM                  cobald red monitor            counts

                BSR Blue                   backscatter ratio in blue     [ ]

                BSR Red                    backscatter ratio in red      [ ]





POPS data stored in *.csv

******POPS Variables ******

Short Name	     Long Name			Unit

-----------------------------------------------------------------------------------------

POPS Bin0                    Particle counts 	                             (counts)

.

.

.

POPS Bin7                    Particle counts 	                             (counts)

POPS Flow Rate	    POPS Flow Rate 		             (cc/s)



POPS data 8 bins (POPS Bin0 to POPS Bin7) size with the bin boundary from the array (0.123,0.144,0.176,0.225,0.416,0.615,1.271,2.055,3.394) in nanometer. 

 	


References:

1.  Bian J., Li D., Bai Z., Xu J., Li Q., Wang H., Vömel H., Wienhold F.G., Peter T., 2023: First detection of aerosols of the Hunga Tonga eruption in the Northern Hemisphere stratospheric westerlies. Science Bulletin, 68(6), 574-577, https://doi.org/10.1016/j.scib.2023.03.002. 

2.  Yang Z., Li D., Luo J., Tian W., Bai Z., Li Q., Zhang J., Wang H., Zheng X.,Vömel H., Weinhold F., Peter T.,Hurst D., Bian J., 2023: Determination of cirrus occurrence and distribution characteristics over the Tibetan Plateau based on the SWOP campaign. Journal of Geophysical Research: Atmospheres, 128, e2022JD037682. https://doi.org/10.1029/2022JD037682.

3.  Ma D., Bian J.*, Li D. Bai Z., Li Q., Zhang J., Wang H., Zheng X., Hurst D.F., Vömel H., 2022: Mixing characteristics within the tropopause transition layer over the Asian summer monsoon region based on ozone and water vapor sounding data. Atmospheric Research, 271, 106093, https://doi.org/10.1016/j.atmosres.2022.106093.