The primary data sources include meteorological datasets from Automatic Weather Stations (AWS), the Digital Current Weather Information System (DCWIS), and Surface Stations at the Indian Polar Research Base. These datasets provide critical parameters such as temperature, air pressure, wind speed, wind direction, and relative humidity.

The Polar Meteorological Data Portal is continuously updated with new observation datasets. However, like any dataset, it may contain errors due to variability in the sources and their associated error probabilities.

For detailed metadata and further information, please visit the Indian National Polar Data Center (NPDC) portal.