Notes on the measurement and estimation of atmospheric radiation — 2

摘要: A series of measurements the infra red emission atmosphere has been made at Kew Observatory with Dines and Linke-Fuessner radiometers. Precautions necessary during calibration use these instruments are discussed, results obtained them compared, accuracy assessed. Computation atmospheric by Elsasser's method is compared experimental results. It suggested that divergence found due to over-estimation emissivity water vapour in presence carbon dioxide Elsasser, together a variable additional component radiation from 0 8 per cent total. Some comments on possible origin this radiation. modification F. A. Brooks used derive values measurements, combining laboratory Elsasser an curve which differs now generally accepted. This compute radiation, construction empirical chart described. Finally it shown outward ground may be reading ordinary thermometer, estimate based routine upper air data, net surface estimated better than 15 cent.