Figure 2 (IMAGE) National Institute for Environmental Studies Caption Figure 2. A comparison between methane column-averaged dry-air mole fractions (XCH4) from GOSAT and GOSAT-2 data acquired on the same day. For each GOSAT measurement, the nearest GOSAT-2 measurement for the same date is selected as the match-up data if the angle between the observation points of GOSAT and GOSAT-2 from the earth center is 0.01 radian or less. Credit NIES Usage Restrictions Credit required. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.