Tussock watershed thaw depth survey summary for 1990 to present, Arctic Long-Term Ecological Research (LTER), Toolik Research Station, Alaska.

Thaw depth was measured since 1990 using a steel probe in the Tussock watershed just south of Toolik Lake, Alaska, on a gentle slope dominated by moist, non-acidic tussock tundra. At least two surveys are conducted each summer, on 2 July and on 11 August (plus or minus 1 day).

本数据集所涉及的解冻深度（Thaw Depth）自1990年起采用钢探杆进行测量，测量点位位于阿拉斯加州图利克湖（Toolik Lake）以南的草丘流域（Tussock Watershed）内一处以湿润、非酸性草丘苔原（Tussock Tundra）为优势植被的缓坡地带。每年夏季至少开展两次野外测量，观测时间分别为7月2日及8月11日，允许误差为±1天。