The Alma-Ata Geomagnetic Observatory provides continuous monitoring of
Earth's geomagnetic field. Located at 1300 meters above sea level in the
foothills of the Tien Shan Mountains, approximately 10 km from Almaty,
Kazakhstan, the observatory operates state-of-the-art equipment certified by
INTERMAGNET, including the fluxgate magnetometer LEMI-008 and the proton
Overhauser magnetometer POS-1.
The data service includes:
* **Observables**: Three components of the geomagnetic field vector (X, Y, Z)
and the total field amplitude (F), measured in nanoteslas (nT).
* **Data Resolution**:
- XYZ components measured at a 1-second frequency.
- F component measured at a 5-second frequency.
- Derived minute averages for XYZF components available in real time.
- Absolute measurements performed two to three times per week.
The service provides open access to minute and hourly data (XYZF components
and K-index of geomagnetic activity) through the Institute of Ionosphere's
website for data from 2003 onward. Additionally, INTERMAGNET hosts minute
variations data since 2004. Data prior to 2003 are available upon request.
The data is collected and provided by the Institute of Ionosphere (https://ionos.kz/).
