Himawari-8 Imagery, above (courtesy JMA, the Japan Meteorological Agency, from this site), shows a cyclonically rotating feature over the western Pacific, approaching the northern Marianas Islands by the end of the animation. Periodic weak convection is forming within the center of the circulation, with more widespread convection developing to its east.... Read More
Q: Can geostationary imagers see the very thin, very high Noctilucent Clouds? A: Yes and no, depending on the satellite, how data are processed, time of the year, time of the day and spectral band. Thanks to Simon Proud for this tweet using JMA‘s Advanced Himawari Imager (AHI): Whoa, awesome view of #Noctilucent... Read More
JMA Himawari-8 “Red” Visible (0.64 µm), Shortwave Infrared (3.9 µm) and “Clean” Infrared Window (10.4 µm) images (above) showed signatures of a rapidly-spreading grassland fire in eastern Mongolia’s Numrug National Park (near the border with China) on 19 April 2022. The fast rate of northeastward growth of the dark burn scar in... Read More
The month-long animation above shows the Himawari-8 Sandwich Product (daytime, blending visible band 3 (0.64 µm) and Band 13 (10.41 µm); and nighttime: Infrared only (Band 13, 10.41 µm) ) for the period from 16 March 2021 through 16 April 2021 over the Pacific Island (1) sector from this site, courtesy... Read More
