naa a22 4500 510754287 CHVBK 20180411083116.0 cr unu---uuuuu 180411e20131001xx s 000 0 eng 10.1007/s13131-013-0363-8 doi (NATIONALLICENCE)springer-10.1007/s13131-013-0363-8 The vertical structure of the atmospheric boundary layer over the central Arctic Ocean [Elektronische Daten] [Lingen Bian, Yongfeng Ma, Changgui Lu, Xiang Lin] The tropopause height and the atmospheric boundary layer (PBL) height as well as the variation of inversion layer above the floating ice surface are presented using GPS (global position system) radiosonde sounding data and relevant data obtained by China's fourth arctic scientific expedition team over the central Arctic Ocean (86°-88°N, 144°-170°W) during the summer of 2010. The tropopause height is from 9.8 to 10.5 km, with a temperature range between −52.2 and −54.1°C in the central Arctic Ocean. Two zones of maximum wind (over 12 m/s) are found in the wind profile, namely, low- and upper-level jets, located in the middle troposphere and the tropopause, respectively. The wind direction has a marked variation point in the two jets from the southeast to the southwest. The average PBL height determined by two methods is 341 and 453 mrespectively. These two methods can both be used when the inversion layer is very low, but the results vary significantly when the inversion layer is very high. A significant logarithmic relationship exists between the PBL height and the inversion intensity, with a correlation coefficient of 0.66, indicating that themore intense the temperature inversion is, the lower the boundary layer will be. The observation results obviously differ from those of the third arctic expedition zone (80°-85°N). The PBL height and the inversion layer thickness are much lower than those at 87°-88°N, but the inversion temperature is more intense, meaning a strong iceatmosphere interaction in the sea near the North Pole. The PBL structure is related to the weather system and the sea ice concentration, which affects the observation station. The Chinese Society of Oceanography and Springer-Verlag Berlin Heidelberg, 2013 central Arctic Ocean nationallicence radiosonde sounding nationallicence PBL height nationallicence inversion layer nationallicence Bian Lingen Chinese Academy of Meteorological Sciences, 100081, Beijing, China aut Ma Yongfeng Chinese Academy of Meteorological Sciences, 100081, Beijing, China aut Lu Changgui Chinese Academy of Meteorological Sciences, 100081, Beijing, China aut Lin Xiang Chinese Academy of Meteorological Sciences, 100081, Beijing, China aut Acta Oceanologica Sinica Springer Berlin Heidelberg 32/10(2013-10-01), 34-40 0253-505X 32:10<34 2013 32 13131 https://doi.org/10.1007/s13131-013-0363-8 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s13131-013-0363-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Bian Lingen Chinese Academy of Meteorological Sciences, 100081, Beijing, China aut NATIONALLICENCE 700 1- Ma Yongfeng Chinese Academy of Meteorological Sciences, 100081, Beijing, China aut NATIONALLICENCE 700 1- Lu Changgui Chinese Academy of Meteorological Sciences, 100081, Beijing, China aut NATIONALLICENCE 700 1- Lin Xiang Chinese Academy of Meteorological Sciences, 100081, Beijing, China aut NATIONALLICENCE 773 0- Acta Oceanologica Sinica Springer Berlin Heidelberg 32/10(2013-10-01), 34-40 0253-505X 32:10<34 2013 32 13131 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer