metnet.imd.gov.inmetnet.imd.gov.in/mausamdocs/22318.pdf · SWG, and 27.5 inches were used and fixed...
5
metnet.imd.gov.inmetnet.imd.gov.in/mausamdocs/22318.pdf · SWG, and 27.5 inches were used and fixed in a light bamboo framc. With this type of ... 7 10 Pilot Balloon (12 years) 786