A Global Isopycnal OGCM: Validations Using Observed Upper-Ocean Variabilities during 1992–93
نویسندگان
چکیده
منابع مشابه
Simulation of More Realistic Upper-Ocean Processes from an OGCM with a New Ocean Mixed Layer Model
A new ocean mixed layer model (OMLM) was embedded into an ocean general circulation model (OGCM) with the aim of providing an OGCM that is ideal for application to a climate model by predicting the sea surface temperature (SST) more accurately. The results from the new OMLM showed a significant improvement in the prediction of SST compared to the cases of constant vertical mixing and the vertic...
متن کاملDecadal Variabilities of the Upper Layers of the Subtropical North Atlantic: An Ocean Model Study
Numerical simulations of the Atlantic Ocean during the period 1950 to 1989, using a sigma coordinate, free surface numerical model, show long-term variabilities in the upper ocean subtropical gyre similar to those obtained from observations. The simulations show how westward propagating planetary waves, originated in the eastern North Atlantic, affect interdecadal variabilities of ocean propert...
متن کاملAssimilation of temperature into an isopycnal ocean general circulation model using a parallel ensemble Kalman filter
Temperature data from the Tropical Atmosphere and Ocean (TAO) array are assimilated into the Pacific basin configuration of the Poseidon quasi-isopycnal ocean general circulation model (OGCM) using a multivariate ensemble Kalman filter (EnKF) implemented on a massively parallel computer architecture. An assimilation algorithm whereby each processing element (PE) solves a localized analysis prob...
متن کاملSources of global warming in upper ocean temperature during El Nio
Global average sea surface temperature (SST) from 40øS to 60øN fluctuates ñ0.3øC on interannual period scales, with global warming (cooling) during E1 Nifio (La Nifia). About 90% of the global warming during E1 Nifio occurs in the tropical global ocean from 20øS to 20øN, half because of large SST anomalies in the tropical Pacific associated with E1 Nifio and the other half because of warm SST a...
متن کاملResponse of global upper ocean temperature to changing solar irradiance
By focusing on time sequences of basin-average and global-average upper ocean temperature (i.e., from 40øS to 60øN) we find temperatures responding to changing solar irradiance in three separate frequency bands with periods of >100 years, 18-25 years, and 9-13 years. Moreover, we find them in two different data sets, that is, surface marine weather observations from 1990 to 1991 and bathythermo...
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: Monthly Weather Review
سال: 1999
ISSN: 0027-0644,1520-0493
DOI: 10.1175/1520-0493(1999)127<0706:agiovu>2.0.co;2