Evaluation of Downward Longwave Radiation in General Circulation Models
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 کاملA Study of Longwave Radiation Codes for Climate Studies: Validation with ARM Observations and Tests in General Circulation Models
The equation is deceptively simple, but there are significant problems associated with the calculation of F 0' F c' and N*. Our research program is directed at problems associated with each of the three terms. Nevertheless, we have focused our initial research on the clear-sky problem. Research on homogeneous and broken clouds problems will occupy more of our efforts during the next few years. ...
متن کاملA Study of Longwave Radiation Codes for Climate Studies: Validation with Observations and Tests in General Circulation Models-an Update
Introduction to compare calculations from a set of models with operationally observed data. The differences we find will lead to the development of new models to be tested with new data. Similarly. our GCM studies will use existing GCMs to study the radiation sensitivity problem. We anticipate that the outcome of this approach will provide both a better longwave radiative forcing algorithm and ...
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 کاملThe Walker circulation, diabatic heating, and outgoing longwave radiation
For the tropical atmosphere on planetary scales, it is common to model the circulation using strong damping. Here, with new data analysis techniques, evidence suggests that damping can actually be neglected. Specifically, near the equator, the east–west overturning circulation is in agreement with the undamped wave response to atmospheric heating. To estimate the heating, satellite observations...
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: Journal of Climate
سال: 2001
ISSN: 0894-8755,1520-0442
DOI: 10.1175/1520-0442(2001)014<3227:eodlri>2.0.co;2