Verification of Himawari-8 Observation Data using Cloud Optical Thickness (COT) and Cloud Image Energy

Himawari-8 satellite cloud observation data covers all areas of Indonesia. The cloud observation data can be used for observations of current weather conditions and short-term predictions. This paper reports the verification method of Himawari-8 Observation Data using Cloud Optical Thickness (COT) and compared to Cloud Image Energy. The verification test was carried out to determine the accuracy of Himawari-8's observations. COT data were verified using energy data from the observation image of the time-lapse camera. First, the time-lapse camera captures and classifies the cloud image. Subsequently, the energy of each image frame was calculated and re-grouped the result based on the energy to determine the type of the cloud. The results show that there is a positive correlation between COT and low energy values with cumulonimbus cloud detection, on the contrary for Cirrus-cloud type. However, the data requires a more accurate observation method to obtain data from cloud images on the Himawari-8 satellite, specifically for regions with a small spatial size of 4 km and thin clouds in the lower layer.

@article{Ahmad2020,
  title     = {Verification of Himawari-8 Observation Data using Cloud Optical Thickness (COT) and Cloud Image Energy},
  journal   = {International Journal of Advanced Computer Science and Applications},
  volume    = {11},
  number    = {12},
  year      = {2020},
  publisher = {The Science and Information Organization},
  author    = {Umar Ali Ahmad and Wendi Harjupa and Dody Qory Utama and Risyanto and Alex Lukmanto Suherman and Wahyu Pamungkas and Prayitno Abadi and Agus Virgono and Burhanuddin Dirgantoro and Reza Rendian Septiawan and Mas’ud Adhi Saputra},
  doi       = {10.14569/IJACSA.2020.0111231},
  url       = {https://doi.org/10.14569/IJACSA.2020.0111231}
}