Answer with Explanation:
Let's briefly check each option.
1. Satellites
Weather satellites are used to monitor weather condition of Earth from Space. This is done by collecting data and later on using it for analysis and generating predictive models. Three types of satellites are mainly used:
- Polar orbiting satellites.
- Geostationary satellites.
- Deep space satellites
2. Weather Balloons
Weather balloons are attached with a sensor known as Radiosonde to collect data. Radiosondes are our primary source of upper-air data. As the balloon flies in the air, the sensor collects and sends weather data continuously. Eventually the balloon bursts due to low external pressure.
3. Automated Weather Stations
Automated weather stations, also called ASOS (automated surface observing systems), are used to continuously monitor weather conditions on the Earth’s surface. These systems update data at a frequency of up to 12 times an hour. Data involves surface visibility, precipitation, humidity, temperature and wind intensity.
Weather fronts, maps and charts are prepared after data is collected and hence are not used for gathering data
