Record Details
Longwave radiation at the ground: IV. Comparison of measurement and calculation of radiation from cloudless skies
ScholarsArchive at Oregon State University
| Field | Value |
|---|---|
| Title | Longwave radiation at the ground: IV. Comparison of measurement and calculation of radiation from cloudless skies |
| Names |
Dalrymple, G.J.
(creator) Unsworth, Michael H. (creator) |
| Date Issued | 1978 (iso8601) |
| Abstract | On cloudless days in summer, longwave irradiance was measured with a radiometer and was calculated from a radiation chart using records from radiosondes released at regular intervals. The results show that the chart underestimated the longwave flux density at the ground by up to 40W/m^(-2), corresponding to an extra atmospheric emissivity of up to 0.12. The extra emissivity was correlated with turbidity during the day, and on turbid days it showed a diurnal variation with a maximum at noon. It is suggested that emission in the atmospheric window from dust, pollen and spores may account for some of the observed excess. |
| Genre | Article |
| Identifier | Dalrymple, G. J., & Unsworth, M. H. (1978). Longwave radiation at the ground: IV. Comparison of measurement and calculation of radiation from cloudless skies. Quarterly Journal of the Royal Meteorological Society, 104, 989-997. |
