黑河生态水文遥感试验：非均匀下垫面地表蒸散发的多尺度观测试验-通量观测矩阵数据集（花寨子荒漠站）（2012年2月-9月）

该数据集包含了2012年6月2日至9月21日的通量观测矩阵中20号点的自动气象站观测数据。站点为甘肃省张掖市花寨子站，下垫面是荒漠。观测点的经纬度是100.31860E, 38.76519N，海拔1731.00m。两个红外表面温度传感器安装在2.65米处，支臂朝向正南，探头朝向是垂直向下；土壤温度探头埋设在地表0cm和地下2cm、4cm 处，并距离气象塔2米的正南方； 土壤水分传感器分别埋设在地下2cm、4cm 处，并距离气象塔2米的正南方；土壤热流板（3块）依次埋设在地下6 cm处。本站数据集存放在两个表格中，其中北师大观测数据集时间间隔为10分钟平均，中科院寒旱所的观测数据集时间间隔为30分钟平均，具体观测要素分别如下：
（1）观测项目有：地表辐射温度（IRT_1、IRT_2）(单位：摄氏度、百分比)、土壤热通量（Gs_1、Gs_2、Gs_3）(单位：瓦/平方米)、 多层土壤水分（Ms_2cm、Ms_4cm）(单位：百分比)和多层土壤温度（Ts_0cm、Ts_2cm 、Ts_4cm）(单位：摄氏度)。
（2）花寨子中科院寒旱所观测项目有：风速（WS_0.48m、WS_0.98m、WS_1.99m、WS_2.99m）(单位：米/秒)、风向（WD_4m）(单位：度)、沙尘浓度（Funjin_mgm3_Avg）、辐射四分量（DR、UR、DLR_Cor、ULR_Cor、Rn）(单位：瓦/平方米)、空气温湿观测（Ta_1m 、Ta_1.99m、Ta_2.99m、RH_1m、RH_1.99m、RH_2.99m）(单位：摄氏度、百分比)、气压（Press）(单位：百帕)、多层土壤温度（Ts_0cm、Ts_4cm、Ts_10cm、Ts_18cm Ts_26cm、Ts_34cm、Ts_42cm、Ts_50cm）(单位：摄氏度)、多层土壤水分百分比（Ms_2cm Ms_2cm Ms_2cm Ms_10cm Ms_18cm Ms_26cm Ms_34cm Ms_42cm Ms_50cm Ms_58cm）(单位：百分比)和多层土壤水分体积（ADR_2cm、ADR_2cm、ADR_2cm、ADR_2cm、ADR_10cm、ADR_18cm、ADR_26cm、ADR_34cm、ADR_42cm、ADR_50cm）(单位：立方米/立方米)、沙尘动量（KE_Tot）(单位：计数)和沙粒子量（PC_Tot）(单位：计数)。
观测数据的处理与质量控制：1）确保（1）北师大观测每天1440个数据（每10min），若出现数据的缺失，则由-6999标示；确保（2）中科院寒旱所站每天48个数据（每30min），若出现数据的缺失，则由-6999标示；2）剔除有重复记录的时刻；3）删除了明显超出物理意义或超出仪器量程的数据；4）花寨子中科院寒旱所观测项目的记录时间为世界时间，日期和时间的格式统一，并且日期、时间在同一列。如，时间为：2012-6-10 10:30；5）命名规则为：AMS+站点编号 。
多尺度观测试验或站点信息请参考Liu et al. (2016)，观测数据处理请参考Xu et al.(2013)。

This dataset contains automatic meteorological station observation data at Point 20 of the flux observation matrix from June 2 to September 21, 2012. The station is Huazhaizi Station in Zhangye City, Gansu Province, with a desert underlying surface. The coordinates of the observation site are 100.31860°E, 38.76519°N, and the altitude is 1731.00 m. Two infrared surface temperature sensors were installed at a height of 2.65 m, with their support arms facing due south and probes facing vertically downward. Soil temperature probes were buried at 0 cm, 2 cm and 4 cm below the surface, 2 m due south of the meteorological tower. Soil moisture sensors were buried at 2 cm and 4 cm below the surface, 2 m due south of the meteorological tower. Three soil heat flux plates were sequentially buried at 6 cm below the ground surface. This station's dataset is stored in two tables. The observation dataset from Beijing Normal University has a 10-minute averaging interval, while the observation dataset from the Cold and Arid Regions Environmental and Engineering Research Institute (CAREERI) of the Chinese Academy of Sciences has a 30-minute averaging interval. The specific observation elements are as follows:
(1) Observation items include: surface radiation temperature (IRT_1, IRT_2) (unit: °C, %), soil heat flux (Gs_1, Gs_2, Gs_3) (unit: W/m²), multi-layer soil moisture (Ms_2cm, Ms_4cm) (unit: %), and multi-layer soil temperature (Ts_0cm, Ts_2cm, Ts_4cm) (unit: °C).
(2) Observation items of Huazhaizi Station from CAREERI include: wind speed (WS_0.48m, WS_0.98m, WS_1.99m, WS_2.99m) (unit: m/s), wind direction (WD_4m) (unit: °), dust concentration (Funjin_mgm3_Avg, unit: mg/m³), four-component radiation (DR, UR, DLR_Cor, ULR_Cor, Rn) (unit: W/m²), air temperature and humidity observations (Ta_1m, Ta_1.99m, Ta_2.99m, RH_1m, RH_1.99m, RH_2.99m) (unit: °C, %), atmospheric pressure (Press) (unit: hPa), multi-layer soil temperature (Ts_0cm, Ts_4cm, Ts_10cm, Ts_18cm, Ts_26cm, Ts_34cm, Ts_42cm, Ts_50cm) (unit: °C), multi-layer soil moisture percentage (Ms_2cm, Ms_2cm, Ms_2cm, Ms_10cm, Ms_18cm, Ms_26cm, Ms_34cm, Ms_42cm, Ms_50cm, Ms_58cm) (unit: %), multi-layer soil moisture volumetric content (ADR_2cm, ADR_2cm, ADR_2cm, ADR_2cm, ADR_10cm, ADR_18cm, ADR_26cm, ADR_34cm, ADR_42cm, ADR_50cm) (unit: m³/m³), dust momentum (KE_Tot, unit: count), and sand particle count (PC_Tot, unit: count).
Data processing and quality control of the observation data: 1) Ensure that (1) the Beijing Normal University observation dataset has 1440 data points per day (10-minute interval), and missing data is marked with -6999; ensure that (2) the CAREERI station observation dataset has 48 data points per day (30-minute interval), and missing data is marked with -6999; 2) Remove duplicate records at the same moment; 3) Delete data that obviously exceeds physical significance or instrument measurement range; 4) The record time of Huazhaizi CAREERI observation items is Universal Time (UTC), the date and time format are unified, and date and time are placed in the same column. For example, the time format is: 2012-6-10 10:30; 5) The naming convention is: AMS + station number.
For multi-scale observation experiments or site information, please refer to Liu et al. (2016), and for observation data processing, please refer to Xu et al. (2013).