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Archive: Nov 2015

Smog and poor air quality in Beijing, China

The sequence of 5 daily Suomi NPP VIIRS true-color Red/Green/Blue (RGB) images shown above are centered on Beijing in northeastern China — these images (viewed using RealEarth) showed the transition from the Beijing area being sunny and snow-covered on 26 November to enshrouded in dense smog on 30 November 2015.... Read More

Ice growth in Hudson Bay

GOES-13 (GOES-East) Visible (0.63 µm) images (above) showed the growth of offshore ice in the western and northwestern portions of Hudson Bay on 24 November 2015. Also evident on the imagery was cloud streets aligned with the northerly/northwesterly flow of cold arctic air over the water, as well as the... Read More

GOES-13 Sounder Anomalies

On 20 November, at 0922 UTC, the GOES-13 Sounder experienced an anomaly (the GOES-13 Sounder had Filter Wheel anomalies in 2012 as well: Link; Link). GOES Engineers determined that the Filter Wheel had stopped moving (the filter wheel aligns the infrared detectors with the incoming data) so data were not... Read More

Typhoon In-fa

Tropical Depression In-fa (27W) formed well south of the Marshall Islands in the West Pacific Ocean on 17 November 2015, and proceeded to track northwestward to a position south of Guam on 20 November (above). Following a brief decrease in intensity on 18 September, In-fa began another period of intensification... Read More