A research team from the Institute of Atmospheric Physics, joined by researchers from Jinan University, carried out a field campaign in Lhasa (about 3650 meters above sea level) over the Tibetan Plateau in August 2020.
The campaign, supported by the Second Tibetan Plateau Scientific Expedition and Research (STEP) project, aims to capture vertical profiles of trace gases and aerosol across the planetary boundary layer, employing both online techniques by small instruments with high temporal resolution and offline techniques with specially designed samplers.
The instruments are attached to a helium-filled tethered balloon with a volume of 60 m3. And the team has named the ballon "Big Fish".
"Big Fish" was launched to about 600 meters several times a day. Until September 1 when the campaign wrapped up, totally 121 successful launches were performed. (Image by DENG Zhaoze)
"Big Fish" at work. (Images by RAN Liang)
"Big Fish"'s voyage toward the night sky. (Image by TANG Guiqian)
Based on the geological evidence that the northern TP (NTP) had an uplift of finite magnitude since the Miocene and the major Asian inland deserts formed in the early Pliocene, Dr. LIU Xiaodong and Dr. SUN Hui, from the Institute of Earth Environment of Chinese Academy of Sciences, and co-authors revealed the influence of uplift of the NTP and Asian inland deserts information on regional climate and environment by using a high resolution regional climate model through paleo-climate modeling of lowering topography of the NTP and removing Asian inland deserts.
The analysis on the boreal summer intraseasonal oscillation over the Tibetan Plateau shows that the dominant intraseasonal signal was the quasi-biweekly oscillation, which could be detected in circulation, precipitation and diabatic heating fields.
86-10-68597521 (day)
86-10-68597289 (night)
86-10-68511095 (day)
86-10-68512458 (night)
cas_en@cas.cn
52 Sanlihe Rd., Xicheng District,
Beijing, China (100864)
Copyright © 2002 - Chinese Academy of Sciences
