青藏高原多年冻土15m地温基线数据（2010-2019）

该数据集为青藏高原多年冻土15米深度处年平均地温（MAGT15m）的格网数据，其空间分辨率为0.00833333°（约合1公里）。MAGT15m为2010-2019年的平均值，单位为摄氏度（°C）。该数据集是基于231个钻孔温度记录和9个预测环境变量，采用支持向量回归（SVR）方法生成。SVR方法表现良好，其决定系数（R2）达到0.48，结果略低估约-0.01°C。该多年冻土温度基线数据有助于模拟深层多年冻土特征，可为多年冻土相关的模型验证和改进提供重要的基础数据。

This dataset is gridded data of the mean annual ground temperature at 15-meter depth (MAGT15m) for permafrost on the Qinghai-Tibet Plateau, with a spatial resolution of 0.00833333° (approximately 1 km). The MAGT15m values are the average over the period 2010–2019, with the unit of degrees Celsius (°C). This dataset was generated using the support vector regression (SVR) method based on 231 borehole temperature records and 9 predictive environmental variables. The SVR method performed well, with a coefficient of determination (R²) of 0.48, and the predicted results showed a slight underestimation of approximately -0.01 °C. This permafrost temperature baseline dataset can facilitate the simulation of deep permafrost characteristics, and provide essential foundational data for model validation and improvement related to permafrost studies.

搜集汇总

背景与挑战

背景概述

该数据集提供了2010-2019年青藏高原多年冻土15米深度处年平均地温的格网数据，空间分辨率约为1公里，基于231个钻孔温度记录和9个预测环境变量采用支持向量回归方法生成。数据有助于模拟深层多年冻土特征，为相关模型验证和改进提供基础数据。