A Comparative Study of Bulk Parameterization Schemes for Estimating Cloudy-Sky Surface Downward Longwave Radiation
نویسندگان
چکیده
منابع مشابه
Periodicity of Downward Longwave Radiation at an Equatorial Location
A good understanding of the diverse mechanisms in the atmosphere is required in modelling the climate. In this study, the diurnal and seasonal patterns of all-sky downward longwave radiation (DLR) at Ilorin (8o 32l N, 4o 34l E), Nigeria were investigated alongside relative humidity (RH) and temperature. The average diurnal pattern of DLR gives an arc that begins by increasing gradually with som...
متن کاملSensitivity of downward longwave surface radiation to moisture and cloud changes in a highelevation region
[1] Several studies have suggested enhanced rates of warming in high-elevation regions since the latter half of the twentieth century. One of the potential reasons why enhanced rates of warming might occur at high elevations is the nonlinear relationship between downward longwave radiation (DLR) and specific humidity (q). Using ground-based observations at a high-elevation site in southwestern ...
متن کاملAssessment of clear and cloudy sky parameterizations for daily downwelling longwave radiation over different land surfaces in Florida, USA
[1] Clear sky downwelling longwave radiation (Rldc) and cloudy sky downwelling longwave radiation (Rld) formulas were tested across eleven sites in Florida. The Brunt equation, using air vapor pressure and temperature measurements, provides the best Rldc estimates with a root mean square error of less than around 12 Wm 2 across all sites. The Crawford and Duchon’s cloudiness factor with Brunt e...
متن کاملEstimation of Downwelling Surface Longwave Radiation under Heavy Dust Aerosol Sky
The variation of aerosols, especially dust aerosol, in time and space plays an important role in climate forcing studies. Aerosols can effectively reduce land surface longwave emission and re-emit energy at a colder temperature, making estimation of downwelling surface longwave radiation (DSLR) with satellite data difficult. Using the latest atmospheric radiative transfer code (MODTRAN 5.0), we...
متن کاملTropical Pacific surface longwave radiation during ENSO
ENSO surface longwave radiation forcing over the tropical Pacific K. G. Pavlakis, D. Hatzidimitriou, E. Drakakis, C. Matsoukas, A. Fotiadi, N. Hatzianastassiou, and I. Vardavas Foundation for Research and Technology-Hellas, Heraklion, Crete, Greece Department of General Applied Science, Technological Educational Institute of Crete, Greece Department of Physics, University of Crete, Crete, Greec...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Remote Sensing
سال: 2019
ISSN: 2072-4292
DOI: 10.3390/rs11050528