Sentinel 2B

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May 22, 2018
lava flow dynamics slide 1
These images show lava observations from USGS helicopter thermal imagery and the NASA Landsat 8 and ESA Sentinel 2B satellites. The lava flow speed was calculated for the channel which opened on May 22nd from fissure 6 and 18 which reached the ocean sometime between May 23rd and May 24th. Using two satellite overpasses 12h 37min apart and the position of  the head of the lava flow from LandSat 8 and Sentinel 2B, the inferred mean flow was near 2.6 m/min. ...
May 18, 2018
Sentinel 2 data from June 2nd 2018
June 2nd, 2018: This Sentinel 2B Short Wave IR data shows the progress of the new lava channel toward the Kapoho Bay on June, 2nd around 9pm UTC (11 am HST). At that time, the flow head was around ~ 1500 yards (1.4 km) from the Kapoho Bay and the lastest USGS report (June 4th at 12 am HST) indicates that the Lava was only at 245 Yards (220 m) 37 hours later, giving an average speed of 34 yards/h. USGS indicates that Laze is likely to form at the entry...
May 2, 2018
Ash Deposition on Ambae Island from March-April 2018 Aoba eruptions
Multiple eruptions from the locally named “Manaro” volcano on the Ambae (Aoba) Island in Vanuatu have led the evacuations of thousands of people affected by the disposition of thick volcanic ash layers on the Ground leading to widespread destructions of Farm lands. Satellite imageries from ESA/Sentinel 2B using wavelength bands sensitive to monitor crops show the extension of the devastation since March, 10th. The quasi-continous eruptions (see ash plume, image on March, 15th) have led to...