Global Terrestrial Network for Permafrost

The GTN-P database is an object-related database open for a diverse range of data. Because of the complexity of the PAGE21 project, data provided in the GTN-P management system are extremely diverse, ranging from active-layer thickness measurements once per year to flux measurement every second and everthing else in between. The data can be assigned to two broad categories: Quantitative data which is all data that can be measured numerically. Quantitative data comprise all in situ measurements, i.e. permafrost temperatures and active layer thickness (mechanical probing, frost/thaw tubes, soil temperature profiles). Qualitative data (knowledge products) are observations not based on measurements, such as observations on soils, vegetation, relief, etc.GTN-P 数据库是一项面向多样化数据集的开放型物体相关数据库。鉴于 PAGE21 项目之复杂性，GTN-P 管理系统提供的数据呈现出极大的多样性，涵盖了从每年一次的活性层厚度测量到每秒一次的通量测量，以及其间的一切数据。这些数据可分为两大类：定量数据，即所有可以以数值形式进行测量的数据。定量数据包括所有原位测量，例如永冻层温度和活性层厚度（机械探测、冻融管、土壤温度剖面）。定性数据（知识产品）则是不基于测量的观察，如对土壤、植被、地形等的观测。

搜集汇总

背景与挑战

背景概述

Global Terrestrial Network for Permafrost (GTN-P)是一个涵盖永久冻土相关数据的多学科数据库，包含定量测量数据（如温度、活动层厚度）和定性观察数据（如土壤、植被）。该数据库由多个国际非营利机构合作维护，提供多种数据访问方式。