Abstract Turkey is located in a highly active earthquake zone. Many geodynamic and seismic activities occur during a day, such as earthquakes, landslides, sinkholes and creep movements. In addition to seismicity, Turkey has unique physical features like being surrounded by seas on three sides, affected by different climate types. It is located on mid latitudes, which makes Turkey very suitable for atmospheric studies. For this reason, Turkey serves as a natural laboratory for geodesy, geophysical and atmospheric scientists. Therefore, Global Navigation Satellite System (GNSS) data are used in many areas. However, not all the scientists can reach or process the data for coordinate-based studies. Within the scope of the study, a GNSS-based Earth Crust and Atmosphere Monitoring Service is established at the Zonguldak Bulent Ecevit University. Using the results of the GNSS processing, time series of GNSS station positions are produced and used to infer strain solutions related to earthquakes. Estimates of the Precipitable Water Vapour (PWV) and the Total Electron Content (TEC) in the ionosphere are made available for tropospheric and ionospheric studies, respectively. Visualisation of the results are intended to be provided to the scientific community. Results show that the root mean square (RMS) differences of the PWV between GNSS and radiosondes are in the range of 1–3 mm. RMS differences of the TEC is in the range of 2–3 TEC units when comparing our GNSS estimates with the Global Ionospheric Maps (GIM) from the International GNSS Service (IGS). One of the main results obtained from the analysis centre is near real-time strain rates and their relations to actual earthquakes. Results show that near real-time strain rates can be assessed as a precursor parameter for earthquakes.

中文翻译：

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为土耳其提供基于 GNSS 的近实时自动地壳和大气监测服务

摘要 土耳其位于地震高度活跃的地区。许多地球动力学和地震活动在一天内发生，例如地震、滑坡、天坑和蠕变运动。除了地震活动外，土耳其还有独特的自然特征，例如三面环海，受不同气候类型的影响。它位于中纬度地区，这使得土耳其非常适合进行大气研究。因此，土耳其是大地测量学、地球物理和大气科学家的天然实验室。因此，全球导航卫星系统（GNSS）数据被用于许多领域。然而，并非所有科学家都可以获取或处理基于坐标研究的数据。在研究范围内，Zonguldak Bulent Ecevit 大学建立了基于 GNSS 的地壳和大气监测服务。使用 GNSS 处理的结果，生成 GNSS 站位置的时间序列并用于推断与地震相关的应变解。电离层中可降水水汽 (PWV) 和总电子含量 (TEC) 的估计值分别可用于对流层和电离层研究。结果的可视化旨在提供给科学界。结果表明，GNSS 和无线电探空仪之间 PWV 的均方根 (RMS) 差异在 1-3 毫米的范围内。将我们的 GNSS 估计值与国际 GNSS 服务 (IGS) 的全球电离层地图 (GIM) 进行比较时，TEC 的 RMS 差异在 2-3 个 TEC 单位的范围内。从分析中心获得的主要结果之一是接近实时的应变率及其与实际地震的关系。