In the database, the data is stored as numbers and strings and displayed on the map as a layer in sh format?

Question

MongoDB

*** There is an open system OpenWeatherMap
*** It collects data from weather data sources and displays it on a map. Example data:
0 1 110217 dd6401.....
where
0 is the name of the meteorological code, for example 0 - metar
1 - weather station index indicating the position of the weather station
110217 - date
dd64 - dd is the wind, 64 is the wind speed,01 is the wind direction
** *Scheme of architecture and my conclusions are attached in the screen.
1. The received weather data is stored in MongoDB
2. The map is stored in PostGIS
3. OpenLayer displays the map and data already in the form of shp
4. After the user (i.e. openlayer) receives a request to generate weather data on the map, the data is converted from mongo DV into one of the formats, for example shp and displayed on the map.
Did I understand everything correctly?

https://habrahabr.ru/post/164045/
Temperature
map openweathermap.org/weathermap?basemap=map&cities=t...