Hull Springs Wetland Water Depth and Temperature Data from 2021-06-11 to 2021-07-16

# General Metadata for Hull Springs Restored Wetland Sampling Station

## Files

Specific metadata for each deployment and sensor can be found as text files with the file format of:

HS_wetland_DO_YYYY-MM-DD_metadata.txt
HS_wetland_pressure_trans_YYYY-MM-DD_metadata.txt
HS_wetland_CT_YYYY-MM-DD_metadata.txt

Where YYYY-MM-DD is the date that the sampling period ended.

NOTE: The metadata in the above file is collected from the data logger and does not have all of fields present in the final data set, because some were created during data cleaning. Details on how the data were cleaned and variables created can be found at in the cleaning scripts on Gitlab [https://gitlab.com/leo147/leo/-/tree/master/lab_notebook/data_processing/cleaning_scripts](https://gitlab.com/leo147/leo/-/tree/master/lab_notebook/data_processing/cleaning_scripts).

## File Created

* 2021-06-16 by KF

## File Modified

* 2021-07-22 by KF - added general metadata for the pressure transducer and the CT sensor.

## Description

These data are from the sampling station in the restored wetland at Hull Springs. The sensors are in the NE corner of the shallow pond portion of the restored wetland (38.119289, -76.667252).

All data are CC-BY and should be cited using the DOI available at https://zenodo.org/communities/leo/

## Station Specifics

The specific at each site are:

* Temperature (dC) and Dissolved Oxygen (mg/l) are collected with a Onset HOBO U26-001 Dissolved Oxygen Logger
* Temperature (dC) and Pressure (mmHg) are collected with an Onset HOBO U20-001-01 Water Level Logger
* Temperature (dC) and Conductivity are collected with an Onset HOBO U24-001 Conductivity Logger

The sensors are sampled every 15 minutes

## Measurement Parameters, units, and Variable Names

* date.time - the date and time that the record was collected, reported in POSIX standard time (YYYY-MM-DD HH:MM:SS)
* date.time.adj - the date and time of the pressure measurement that was adjusted to match the barometric pressure measurement from the weather station.
* observation - the incremental number of each observation
* timestamp - the data and time that the record was collected, as reported by the data logger (MM/DD/YY HH:MM:SS A/PM)
* DO - the concentration of dissolved oxygen in the water (mg/L)
* Temp - the temperature of the water (dC)
* Pressure - the pressure recorded by the underwater pressure transducer (kPa)
* press_mmHg - the pressure recorded by the underwater pressure transducer (mm Hg)
* BP_mmHg - the barometric pressure recorded by the weather station at the Yellow House (mm Hg)
* Z - the depth of the water at the wetland sampling station (cm)
* Low_Range_CT - the conductivity read from 0 - 2500 uS/cm (uS/cm)
* Full_Range_CT - the conductivity read from 0 - 15000 uS/cm (mmHg)

# 赫尔泉修复湿地采样站通用元数据

## 文件
各次部署与传感器的专属元数据可通过以下格式的文本文件获取：
HS_wetland_DO_YYYY-MM-DD_metadata.txt
HS_wetland_pressure_trans_YYYY-MM-DD_metadata.txt
HS_wetland_CT_YYYY-MM-DD_metadata.txt
其中YYYY-MM-DD为采样周期的结束日期。

注意：上述文件中的元数据取自数据记录仪，并未包含最终数据集的全部字段，因部分字段是在数据清洗阶段新增的。数据清洗流程与变量生成细则可参考Gitlab上的清洗脚本：https://gitlab.com/leo147/leo/-/tree/master/lab_notebook/data_processing/cleaning_scripts

## 文件创建
* 2021-06-16 由KF创建

## 文件修改
* 2021-07-22 由KF更新，新增了压力传感器与电导率传感器的通用元数据

## 数据集说明
本数据集取自赫尔泉修复湿地内的采样站。传感器部署于该修复湿地浅塘区域的东北角，坐标为(38.119289, -76.667252)。
所有数据采用CC-BY协议授权，引用时需使用Zenodo社区leo的DOI：https://zenodo.org/communities/leo/

## 站点详情
各站点的具体传感器配置如下：
* 温度（dC）与溶解氧（mg/L）通过Onset HOBO U26-001溶解氧记录仪采集
* 温度（dC）与压力（mmHg）通过Onset HOBO U20-001-01水位记录仪采集
* 温度（dC）与电导率通过Onset HOBO U24-001电导率记录仪采集
传感器采样间隔为15分钟。

## 测量参数、单位与变量名
* date.time：记录采集的日期与时间，采用POSIX标准时间格式（YYYY-MM-DD HH:MM:SS）
* date.time.adj：经校正后的压力测量日期与时间，用于匹配气象站的气压测量数据
* observation：单次观测的递增编号
* timestamp：数据记录仪上报的记录采集日期与时间，格式为MM/DD/YY HH:MM:SS A/PM
* DO：水体溶解氧浓度（mg/L）
* Temp：水体温度（dC）
* Pressure：水下压力传感器记录的压力值（kPa）
* press_mmHg：水下压力传感器记录的压力值（mm Hg）
* BP_mmHg：黄屋气象站记录的大气压力（mm Hg）
* Z：湿地采样站处的水深（cm）
* Low_Range_CT：量程为0~2500 μS/cm的电导率读数（uS/cm）
* Full_Range_CT：量程为0~15000 μS/cm的电导率读数（mmHg）