Web Based Rain Gauge Calibrator

Abstract

Rain gauges in Indonesia need recalibration at least twice a year, viz. at the end of dry season where the rain gauges will soon work harder and at the end of rainy season where usually there are many garbage on each rain gauge orifice. Based on the direct surveys in the fields and discussions at some rain gauge calibration laboratories in Indonesian western, central, and eastern parts, the calibration officers in the visited offices generally used manual rain gauge calibrators to recalibrate rain gauges on their fields. Therefore, the dependency of calibration results to the human beings is very high. Meanwhile to avoid data gathering discontinuation, rain gauges should be recalibrated in situ. To cope with this problem and other issues related to rain gauge calibrators, a research to develop a web based rain gauge calibrator was carried out. The research result using research and development method showed that this calibrator can work well as an in situ and ex situ rain gauge calibrator.

Dissipation of Electrical Energy into Heat Energy in Web-Based Rainfall Meter Microcontrollers

“…Rainfall gauges are important in calibration at least twice a year. Until now there are four types of calibration methods of rainfall gauges used to calibrate rainfall gauges, namely The Static calibration method, The Dynamic calibration method by Calder and Kidd (1978), The Automated Dynamic Calibration method by Humphrey and Istok (1997), and The web based calibration method by Wijonarko et al (2017) [7]. A webbased rain gauge calibrator is a tool to calibrate rain gauges whose results can be downloaded from the web.…”

The Second Generation of Web Based Rain Gauge Calibrator

“…In the right size, it makes vegetation to emerge and grow up quickly to support further life. From many points of view, WBRGC V1 (Wijonarko et al, 2017) is very competitive to be compared with other rain gauge calibration systems or methods (Wijonarko et al 2019), namely Static Calibration and Dynamic Calibration methods (Calder & Kidd, 1978), and Automated Dynamic Calibration method (Humphrey et al, 1997). The WBRGC V1 (Figure 1), however, still has a disturbing appearance due to the present of bubbles attached on its cylindrical tube, when it is filled directly with water (Wijonarko et al, 2019;Maftukhah & Wijonarko, 2019)…”