SSHCZO -- Soil Moisture -- COSMOS Probe -- Garner Run (Sandstone Forested) -- (2015-2016)

Hydroinnova Cosmic-Ray Soil Moisture/Snow Sensing System (COSMOS), Model CRS-1000/B, non-invasively measures moderated neutron count among an averaged area (around 700 meters in diameter (Franz et al., 2013)), which can indirectly represent soil moisture in the top 50 cm of soil. This file includes level 1 data measured directly from COSMOS. The neutron count can be affected various elements in surroundings, where hydrogen is often the dominant one (Zreda et al., 2012). The neutron rate counted by the MOD column of COSMOS therefore can be used to determine soil moisture after a standard correction and point calibration, the results of which are COSMOS Level 2 and Level 3 data. Data collected using Hydroinnova Cosmic-Ray Soil Moisture/Snow Sensing System. Prepared to be corrected and be used to determine soil moisture. Calibration SM a0 a1 a2 N N0 0.1771 0.0808 0.372 0.115 1963.23 3026.79 Pressure correction parameter L = 133 PO = 956 Date Range Comments: Data to be updated quarterly.Hydroinnova宇宙射线土壤水分/积雪探测系统（Cosmic-Ray Soil Moisture/Snow Sensing System, COSMOS）型号为CRS-1000/B，可无创测量平均覆盖区域（直径约700米，引自Franz等，2013年）内的慢化中子计数，该计数可间接表征0~50 cm深度土层的土壤水分。本文件包含直接由COSMOS采集的一级（Level 1）数据。中子计数会受到周边多种环境要素的影响，其中氢元素通常为主导因素（引自Zreda等，2012年）。因此，通过COSMOS的MOD列统计得到的中子计数率，经标准校正与单点校准后，可用于反演土壤水分，其校正校准结果即为COSMOS二级（Level 2）与三级（Level 3）数据。本数据集由Hydroinnova宇宙射线土壤水分/积雪探测系统采集，经校正后可用于土壤水分反演。 校准参数：土壤水分（Soil Moisture, SM）拟合参数a0、a1、a2以及N、N0，对应取值依次为0.1771、0.0808、0.372、0.115、1963.23与3026.79。 气压校正参数：L=133，PO=956。 数据更新说明：本数据集按季度更新。