COOPER RIVER AT U.S. HWY 17 AT CHARLESTON, SC (USGS 021720709)

Timeseries data from \'COOPER RIVER AT U.S. HWY 17 AT CHARLESTON, SC (USGS 021720709)\' (ism-secoora-gov_usgs_nwis_021720-8)cdm_data_type = TimeSeriesVARIABLES:time (seconds since 1970-01-01T00:00:00Z)latitude (degrees_north)longitude (degrees_east)z (Altitude, m)mass_concentration_of_oxygen_in_sea_water (Dissolved Oxygen Concentration, mg.L-1)mass_concentration_of_oxygen_in_sea_water_qc_agg (Dissolved Oxygen Concentration QARTOD Aggregate Quality Flag)mass_concentration_of_oxygen_in_sea_water_qc_tests (Dissolved Oxygen Concentration QARTOD Individual Tests)sea_water_practical_salinity_cm_time__mean_over_p1d (Salinity, 1e-3)sea_water_practical_salinity_cm_time__mean_over_p1d_qc_agg (Salinity QARTOD Aggregate Quality Flag)sea_water_practical_salinity_cm_time__mean_over_p1d_qc_tests (Salinity QARTOD Individual Tests)sea_water_practical_salinity (Salinity, 1e-3)sea_water_practical_salinity_qc_agg (Salinity QARTOD Aggregate Quality Flag)sea_water_practical_salinity_qc_tests (Salinity QARTOD Individual Tests)sea_water_temperature_cm_time__mean_over_p1d (Water Temperature, degree_Celsius)sea_water_temperature_cm_time__mean_over_p1d_qc_agg (Water Temperature QARTOD Aggregate Quality Flag)sea_water_temperature_cm_time__mean_over_p1d_qc_tests (Water Temperature QARTOD Individual Tests)sea_water_temperature (Water Temperature, degree_Celsius)sea_water_temperature_qc_agg (Water Temperature QARTOD Aggregate Quality Flag)sea_water_temperature_qc_tests (Water Temperature QARTOD Individual Tests)water_surface_height_above_reference_datum_above_localstationdatum (Water Surface Height above Datum, m)water_surface_height_above_reference_datum_above_localstationdatum_qc_agg (Water Surface Height above Datum QARTOD Aggregate Quality Flag)water_surface_height_above_reference_datum_above_localstationdatum_qc_tests (Water Surface Height above Datum QARTOD Individual Tests)station (COOPER RIVER AT U.S. HWY 17 AT CHARLESTON, SC (USGS 021720709))

本数据集为美国地质调查局（USGS）编号021720709的南卡罗来纳州查尔斯顿市美国17号高速公路库珀河监测点位的时序观测数据，数据集唯一标识为`ism-secoora-gov_usgs_nwis_021720-8`。
其公共数据模型数据类型（cdm_data_type）为TimeSeries。
变量列表如下：
1. `time`：时间，单位为自1970-01-01T00:00:00Z起的秒数
2. `latitude`：纬度，单位为北纬度数
3. `longitude`：经度，单位为东经度数
4. `z`：海拔，单位为米（m）
5. `mass_concentration_of_oxygen_in_sea_water`：海水中氧质量浓度，即溶解氧浓度，单位为mg·L⁻¹
6. `mass_concentration_of_oxygen_in_sea_water_qc_agg`：海水中氧质量浓度_QARTOD汇总质量标记，即溶解氧浓度QARTOD（Quality Assurance of Real-Time Oceanographic Data，实时海洋数据质量保证体系）汇总质量标记
7. `mass_concentration_of_oxygen_in_sea_water_qc_tests`：海水中氧质量浓度_QARTOD单项测试结果，即溶解氧浓度QARTOD单项测试结果
8. `sea_water_practical_salinity_cm_time__mean_over_p1d`：基于p1d时段平均的海水实用盐度，单位为1×10⁻³
9. `sea_water_practical_salinity_cm_time__mean_over_p1d_qc_agg`：基于p1d时段平均的海水实用盐度_QARTOD汇总质量标记
10. `sea_water_practical_salinity_cm_time__mean_over_p1d_qc_tests`：基于p1d时段平均的海水实用盐度_QARTOD单项测试结果
11. `sea_water_practical_salinity`：海水实用盐度，单位为1×10⁻³
12. `sea_water_practical_salinity_qc_agg`：海水实用盐度_QARTOD汇总质量标记
13. `sea_water_practical_salinity_qc_tests`：海水实用盐度_QARTOD单项测试结果
14. `sea_water_temperature_cm_time__mean_over_p1d`：基于p1d时段平均的海水温度，即水温，单位为摄氏度
15. `sea_water_temperature_cm_time__mean_over_p1d_qc_agg`：基于p1d时段平均的海水温度_QARTOD汇总质量标记
16. `sea_water_temperature_cm_time__mean_over_p1d_qc_tests`：基于p1d时段平均的海水温度_QARTOD单项测试结果
17. `sea_water_temperature`：海水温度，即水温，单位为摄氏度
18. `sea_water_temperature_qc_agg`：海水温度_QARTOD汇总质量标记
19. `sea_water_temperature_qc_tests`：海水温度_QARTOD单项测试结果
20. `water_surface_height_above_reference_datum_above_localstationdatum`：本地基准面以上水面高度，即相对于基准面的水面高度，单位为米（m）
21. `water_surface_height_above_reference_datum_above_localstationdatum_qc_agg`：本地基准面以上水面高度_QARTOD汇总质量标记
22. `water_surface_height_above_reference_datum_above_localstationdatum_qc_tests`：本地基准面以上水面高度_QARTOD单项测试结果
23. `station`：测站信息，为南卡罗来纳州查尔斯顿市美国17号高速公路库珀河（USGS 021720709）