Aqua First Light: AMSR-E Pseudo Color on a Flat Map

AMSR-E is a passive microwave radiometer, all the channels are in microwave spectrum, not in visible spectrum. The image is to express the water planet by simple color composite. Three day average data. Using only the descending paths, nightside orbits. Educational levels: Undergraduate lower division, Undergraduate upper division, Graduate or professional

Aqua First Light: AMSR-E Pseudo Color Global

AMSR-E is a passive microwave radiometer, all the channels are in microwave spectrum, not in visible spectrum. The image is to express the water planet by simple color composite. Three day average data. Using only the descending paths, nightside orbits. Educational levels: Undergraduate lower division, Undergraduate upper division, Graduate or professional

Aqua First Light: AMSR-E Sea Surface Temperature on a Flat Map

This is a cloudless image of Sea Surface Temperature taken by Aquas instrument AMSR-E. Three day average data. Educational levels: Undergraduate lower division, Undergraduate upper division, Graduate or professional

Japan’s efforts to promote global health using satellite remote sensing data from the Japan Aerospace Exploration Agency for prediction of infectious diseases and air quality

In this paper we review the status of new applications research of the Japanese Aerospace Exploration Agency (JAXA) for global health promotion using information derived from Earth observation data by satellites in cooperation with inter-disciplinary collaborators. Current research effort at JAXA to promote global public health is focused primarily on the use of remote sensing to address two themes: (i) prediction models for malaria and cholera in Kenya, Africa; and (ii) air quality assessment of small, particulate matter (PM2.5), nitrogen dioxide (NO2) and ozone (O3). Respiratory and cardivascular diseases constitute cross-boundary public health risk issues on a global scale. The authors report here on results of current of a collaborative research to call attention to the need to take preventive measures against threats to public health using newly arising remote sensing information from space

Estimation of dose-rate effectiveness factor for malignant tumor mortality: Joint analysis of mouse data exposed to chronic and acute radiation

Uncertainties due to confounding factors in epidemiological studies have limited our knowledge of the effects of low dose-rate chronic exposure on human health. Animal experiments, wherein each subject is considered to be nearly identical, can complement the limitations of epidemiological studies. Therefore, we conducted a joint analysis of previously published cancer mortality data in B6C3F1 female mice chronically and acutely irradiated with 137Cs gamma rays to estimate the dose-rate effectiveness factor. In the chronically irradiated animal experiment conducted by the Institute for Environmental Sciences, mice received irradiation at dose rates of 0.05, 1.1 or 21 mGy per day for 400 days from 8 weeks of age. For the acutely irradiated animal experiment conducted by the National Institute of Radiological Sciences, mice received irradiation at 35, 105, 240 or 365 days of age with 1.9, 3.8 or 5.9 Gy at a dose rate of 0.98 Gy per min. Because the preliminary analyses suggested that the risk was dependent on the age at exposure, a model was applied that considered risk differences depending on this factor. The model analysis revealed a three-fold, significantly decreasedrisk per Gy in mice exposed to 21 mGy per day compared to that in acutely irradiated mice. This resulted in a dose-rate effectiveness factor larger than that reported previously