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ザンビアのスペクトル【Spectral data in Zambia】

posted Jul 27, 2016, 2:43 PM by Yoshitaka Uchida Hokudai

   Another research we did in Zambia was collection of spectral data from land surfaces. It was like taking a lot of pictures of land surfaces. In other words, we took a lot of colour data of the land. However, some colours, such as infra-red, are not visible for human so the world of spectral is such an interesting place. For example, many digital camera images can be quantified as strengths of red, blue and green (well, there is a new "4K" technology too). Thus, "colours" can be quantified using various methods. 
   I guess I am struggling to explain what we did but based on these collections of colour data, we may be able to utilize remote-sensing technologies more efficiently. For example, satellite image data can tell us the colour of the land surfaces but they are meaningless until we do land surveys to understand what they are. Thus, we are doing very important research. 
   Recently, many new sensors and technologies have been developed. Scientists are now able to do many things within "laboratories". However, I (and my students) still love going outside to collect data and I believe it is still one of the most important research methods.