%0 Dataset %T XCTD data from the 25th Antarctic expedition to Emory Lake in 2008 %J National Cryosphere Desert Data Center %I National Cryosphere Desert Data Center(www.ncdc.ac.cn) %U http://www.ncdc.ac.cn/portal/metadata/19e1b3b0-0de2-11e6-a761-5cc5d45ad3ae %W NCDC %R 10.12072/ncdc.azs.db3009.2023 %A Hu hongqiao %K Emory;Polar;South Pole;Salinity;Ice Lake %X This data shows a helicopter hovering over an ice lake on the west side of the front edge of the Emory Ice Shelf, 20 meters above the sea surface. Launch three XCTD probes from the helicopter cabin at three stations to obtain temperature and salinity profile data deep into the seabed. This dataset is the original data of XCTD air dropped observations from the Emory Ice Lake during China's 25th Antarctic Expedition in 2008. XCTD (Expendable Conductivity Temperature and Depth System), also known as the abandoned seawater temperature and salinity depth profiler, is a marine scientific research instrument that can quickly obtain temperature and salinity profile data in the sea area. It has the characteristics of navigation, real-time, large-scale, low-cost, and high-precision measurement, and is composed of a transmitting device, a probe, a data transmission enamel wire (between the probe and the transmitting device), and a data collector. The probe is launched into the water by the shipborne launch device to collect real-time seawater temperature and conductivity signals. The data signals are transmitted to the data acquisition board through data transmission enameled wire (copper wire) and enter the computer. After automatic processing by the computer, the corresponding temperature and depth data (curved line) are obtained