TY  - Data
T1  - 1 km Resolution Dataset of 0°C Isotherm Altitude Variations in the Qaidam Region (1985-2018)
A1  - zhu gaofeng
DO  - 10.12072/ncdc.Hydro.db2422.2022
PY  - 2022
DA  - 2022-09-29
PB  - National Cryosphere Desert Data Center
AB  - The 0°C isotherm altitude is a critical characteristic layer in atmospheric sounding, reflecting the thermal conditions of the middle-lower troposphere. Its vertical fluctuations influence surface processes in mountainous regions—particularly the rise and fall of the 0°C line, which governs the freeze-thaw cycle of water in alpine zones.Using upper-air data from 39 radiosonde stations in western China (with some stations having shorter records since 1979), we derived the summer (June–August) 0°C isotherm height from standard pressure-level altitudes and temperatures. Through Kriging interpolation and regression analysis, we quantified the spatiotemporal variation of the summer 0°C isotherm over the Qaidam Basin from 1985 to 2018. A fishnet tool was applied to statistically analyze the altitude changes per 1 km grid.
DB  - NCDC
UR  - http://www.ncdc.ac.cn/portal/metadata/bf1e0a04-c5a5-44e7-aaa9-67a4335e6bb7
ER  -