# Lake water level, temperature and meteo at Ecole polytechnique

## Project Description

This file combines measurements taken from the lake of Ecole polytechnique (water level and water temperature) and from SIRTA atmospheric observatory (wind, air temperature and rain).  
The distance between both measuring sites is 350 m.  
Data is at 1-min time steps.

---

## Standardized Metadata

### File Information

- **File Name:** `measures_lac_x_sirta_202301_*_1min.csv`
- **Creation Date:** `2025-06-06`
- **Data Date Range:** `2023-01-01 to 2025-05-01`
- **Contact:** `DataHub manager [e4c_datahub@ip-paris.fr]`
- **DOI:** `https://doi.org/10.14768/0d695c10-819b-4041-a94b-580df900b3e1`
- **License:** `[Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)](https://creativecommons.org/licenses/by-nc/4.0/legalcode) | The use of data and code for AI training is forbidden without explicit authorization. `

### Data Collection Methodology



---

## Standardized Variables Section

### Variable Definitions (Machine-Readable Format)

```YAML
variables:
  - raw_name: "datetime"
    descriptive_name: "Timestamp"
    description: "Date and time in UTC. Each timestamp corresponds to the starting time for the measurement period."
    unit: "YYYY-MM-DD HH:MM:SS"

  - raw_name: "niveau_lac_m"
    descriptive_name: "Water level"
    description: "Water level of the Ecole Polytechnique lake"
    unit: "m"
    
  - raw_name: "temp_eau_lac_degC"
    descriptive_name: "Water Temperature"
    description: "Water temperature measured into the lake"
    unit: "°C"
    
  - raw_name: "vitesse_vent_10m_SIRTA_ms"
    descriptive_name: "Wind speed"
    description: "Wind speed at 10 meters"
    unit: "m.s-1"

  - raw_name: "direction_vent_10m_SIRTA_deg"
    descriptive_name: "Wind direction"
    description: "Wind direction at 10 m in degree"
    unit: "°"

  - raw_name: "temp_air_SIRTA_degC"
    descriptive_name: "Air Temperature"
    description: "Air Temperature at SIRTA Observatory in Celsius degree"
    unit: "°C"

  - raw_name: "rain_SIRTA_mm"
    descriptive_name: "Rainfall"
    description: "Rainfall in milimeter at SIRTA Observatory"
    unit: "mm"
```
---
### Information
- **Historical contributors:** `[Jordi BADOSA] [jordi.badosa@lmd.polytechnique.fr]`