Open AccessDetection of Polar Mesospheric Clouds Utilizing Himawari‐8/AHI Full‐Disk Images
Author(s) -
Tsuda T. T.,
Hozumi Y.,
Kawaura K.,
Tatsuzawa K.,
Ando Y.,
Hosokawa K.,
Suzuki H.,
Murata K. T.,
Nakamura T.,
Yue J.,
Nielsen K.
Publication year - 2022
Publication title -
earth and space science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.843
H-Index - 23
ISSN - 2333-5084
DOI - 10.1029/2021ea002076
Subject(s) - aeronomy , geostationary orbit , polar orbit , remote sensing , satellite , mesosphere , daytime , environmental science , meteorology , atmosphere (unit) , atmospheric sciences , physics , geology , astronomy , stratosphere
Abstract With the objective of advancing the polar mesospheric cloud (PMC) detection capability by the Advanced Himawari Imager (AHI) onboard the Japanese geostationary‐Earth‐orbit (GEO) meteorological satellite Himawari‐8, a novel two‐step PMC detection technique applied to the Himawari‐8/AHI full‐disk images has been developed. The two‐step approach is dividing the PMC detection into stronger (the first step) and weaker (the second step) signals and enhances the detection capability while significantly decreasing the false PMC detections. The improved PMC sensitivity by Himawari‐8/AHI is comparable with the Cloud Imaging and Particle Size (CIPS) onboard the Aeronomy of Ice in the Mesosphere (AIM) satellite. With this encouraging result, PMC observations from Himawari‐8/AHI provide an additional extensive data set to the aeronomy and space science community.