Development of IoT-based weather observers at BMKG (meteorology, climatology and geophysics agency)

Weather observation has a very important role in human life, especially in the shipping world. BMKG (Meteorological, Climatology, and Geophysics Agency), as a government agency, is carrying out these weather observations. However, weather observations conducted at BMKG Maritime Perak Stationary still manual with the tendency of the human error. Therefore, it is necessary to develop an automatic, real-time and accurate weather observation device to assist BMKG Station. This device consists of SHT11 humidity sensor and MS5611 pressure sensor which is connected to the NodeMCU microcontroller as an internet module using the Arduino IDE platform. Measurement parameters are wet ball temperature, dry ball temperature, dew point, humidity, absolute pressure (QFE), and atmospheric pressure (QNH). The six parameters are compared to conventional devices at BMKG Station. From the data analysis, it was found that the error values of these parameters were dry ball temperature, wet ball temperature, dew point, humidity, QFE, and QNH are 2.4 %, 0.54 %, 1.5 %, 3.3 %, 0.0002 %, 0.008 % respectively. The researchers have developed automatic, digital and real-time weather observation devices and low-cost products.