Ground-Based Greenhouse Gas Concentration and Microclimate Time-Series from Zero-Grazing in Arusha and Free-Range Dairy Cattle in Mbeya, Tanzania (2023–2025)

# Ground-Based Greenhouse Gas Concentration and Microclimate Time-Series from Zero-Grazing in Arusha and Free-Range Dairy Cattle in Mbeya, Tanzania (2023–2025) ## 1. DescriptionThis dataset contains greenhouse gas concentration and microclimate measurements collected from a zero-grazing and free-grazing dairy farm in the Arusha and Mbeya regions, Tanzania. The data were collected using ground-based sensors between January 2023 and May 2025 at regular intervals. The main goal is to support research on modeling and forecasting methane (CH₄), carbon dioxide (CO₂), and nitrous oxide (N₂O) emissions in relation to wind speed, temperature, and humidity. ## 2. Files ### 2.1 data/emissions_timeseries.csv- **Datetime**: timestamp (local time, Africa/Dar_es_Salaam)- **CO2_ppm**: carbon dioxide concentration in ppm- **CH4_ppb**: methane concentration in ppb- **N2O_ppb**: nitrous oxide concentration in ppb- (Add any other variables here) ### 2.2 data/temperature_humidity_timeseries.csv- **Datetime**: timestamp (same as above)- **Temperature_C**: air temperature in °C- **Humidity_pct**: relative humidity in % ## 3. Data collection- **Location**: Mbeya region, Tanzania (approximate, no exact coordinates for privacy)- **System**: zero-grazing dairy- **Measurement height**: sensors placed 2 feet above ground- **Sampling interval**: (e.g., 1 minute, later aggregated to hourly/daily) ## 4. Usage notes- Missing values are coded as: NA- Time zone: Africa/Dar_es_Salaam (UTC+3)- Please cite this dataset if you use it in publications. ## 5. LicenseThis dataset is released under the CC BY 4.0 license (or whichever you choose).# 坦桑尼亚阿鲁沙与姆贝亚地区零放牧及自由放牧奶牛的地面温室气体浓度与微气候时间序列数据集（2023–2025年） ## 1. 数据集概述 本数据集收录了坦桑尼亚阿鲁沙与姆贝亚地区零放牧及自由放牧奶牛场的温室气体（greenhouse gas）浓度与微气候（microclimate）观测数据。数据于2023年1月至2025年5月期间，通过地面传感器（ground-based sensors）以固定采样频次采集。 本数据集的核心目标是为与风速、气温及湿度相关的甲烷（methane, CH₄）、二氧化碳（carbon dioxide, CO₂）及一氧化二氮（nitrous oxide, N₂O）排放的建模与预测研究提供支撑。 ## 2. 数据文件 ### 2.1 data/emissions_timeseries.csv - **Datetime**：时间戳（采用非洲/达累斯萨拉姆时区的本地时间） - **CO2_ppm**：二氧化碳浓度，单位为ppm（parts per million） - **CH4_ppb**：甲烷浓度，单位为ppb（parts per billion） - **N2O_ppb**：一氧化二氮浓度，单位为ppb - （可在此处补充其他观测变量） ### 2.2 data/temperature_humidity_timeseries.csv - **Datetime**：时间戳（与上述数据集一致） - **Temperature_C**：空气温度，单位为摄氏度（°C） - **Humidity_pct**：相对湿度，单位为百分比（%） ## 3. 数据采集 - **采集地点**：坦桑尼亚姆贝亚地区（因隐私保护未提供精确坐标，仅为近似位置） - **观测系统**：零放牧奶牛养殖系统 - **传感器安装高度**：传感器设置于地面上方2英尺处 - **采样间隔**：（示例：初始采样间隔为1分钟，后续可聚合为小时/日尺度数据） ## 4. 使用须知 - 缺失值以`NA`编码表示 - 时区：非洲/达累斯萨拉姆时区（UTC+3） - 若将本数据集用于学术出版物，请务必引用本数据集。 ## 5. 版权许可 本数据集采用CC BY 4.0许可协议发布（或可根据需求选用其他许可协议）。