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).