February 19, 2014

NIES GOSAT Project Office

  TANSO-CAI loaded on the Greenhouse gases Observing SATellite (GOSAT) "IBUKI" captures the plume of ash cloud from the Kelud volcano in Indonesia on February 14.

  The Kelud volcano of Java Island in Indonesia, which elevation is 1731m and geolocation is S7.93 deg. in latitude and E112.308 deg. in longitude, made a huge eruption in the night of February 13 there.
The Greenhouse gases Observing SATellite (GOSAT) "IBUKI" observes the greenhouse gases with TANSO-FTS and clouds and aerosols with TANSO-CAI globally for every 3 days. The plume of ash cloud emitted by the major eruption of the Kelud volcano was captured by TANSO-CAI observed on February 14.

Figure 1. The plume of ash cloud from the Kelud volcano
(Acquired at 14:43 to 14:45 UT on Feb. 14, 2014)

TANSO-CAI is an imager to observe clouds and aerosols with 4 bands, whose central wave length are 1600 nm, 870 nm, 674 nm and 380 nm respectively. This color composite image is created with its 870 nm data for red channel, 674 nm for green and 380nm for blue. The plume of ash cloud is shown in yellow, clouds in white and land vegetation in red on this image (Click to enlarge). As the Kelud volcano is located right upper outside of this image, it is not shown but its ash plume is billowing from the east side.