A preliminary study on the influence of declining groundwater level on the planetary boundary layer height in north china plain
ZHOU Yadong1,2， HE Baoyin1， KOU Jiefeng1,2， ZHONG Yulong1,2
1.Hubei Key Laboratory for Enivironment and Disaster Monitoring and Evaluation， Institute of Geodesy and Geophysics， Chinese Academy of Sciences， Wuhan 430077， China；2.University of the Chinese Academy of Sciences， Beijing 100049， China
Abstract：The effect of continual declined groundwater level on planetary boundary layer height was analyzed by using data， equivalent water height (EWH) and planetary boundary layer height (PBLH) in North China Plain， from GRACE and reanalysis data and NCEP/NCAR in 2003-2015. Correlation analysis of annual， monthly and seasonal PBLH and EWH is carried out in past 13 years， along with the consistency verification between PBLH and EWH. It shows that： both the PBLH and EWH at 6 a.m. are decreased in a fluctuation， and there is a significant linear correlation between the above two with the R2 of 0.57； there exists a lag in PBLH for the response to groundwater level， which may be 3 months. The continual drop of groundwater level in North China Plain may lead to the lowing of PBLH， weakening of the pollutants diffusion in the vertical direction and further reduce atmospheric environmental capacity. Accordingly， the declining groundwater level may be one of important factor in aggravating the haze weather in North China plain， which provides a new perspective for demonstrate the formation mechanism of a of China's haze.
周亚东,何报寅,寇杰锋,钟玉龙. 华北平原地下水水位持续下降对大气边界层高度影响的初步研究[J]. 华中师范大学学报(自然科学版), 2018, 52(4): 589-596.
ZHOU Yadong,HE Baoyin,KOU Jiefeng,ZHONG Yulong,. A preliminary study on the influence of declining groundwater level on the planetary boundary layer height in north china plain. journal1, 2018, 52(4): 589-596.
2018, Vol. 52 
