A Two Dimensional Global Climatic Model
Abstract
A two-dimensional global climatic model has been developed, using a 10 deg longitude by 10 deg latitude box grid and a one-month time step. The lapse rates of temperature and the meridional component of the flow in the oceans and atmosphere and of specific humidity in the atmosphere are parameterized in terms of their respective sea-level values. The model then utilizes the vertically-averaged thermodynamic energy equation, the equation of motion for the boundary layer, the thermal wind equation, the hydrostatic equation, the surface water balance equation, and empirical relations between the sea-level temperature and pressure gradient fields and between cloud cover and precipitation to determine the global distribution by months of sea-level pressure, temperature, wind speed and direction, and relative humidity, precipitation, evaporation, runoff, soil moisture content, ice and snow cover and thickness, cloud cover, and poleward energy transport. Two 100 model-year runs were made on the NCAR CDC 7600 computer. They differed only in the value of the solar constant used. Both runs indicate that the model is extremely stable.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 02, 1975
- Accession Number
- ADA019253
Entities
People
- William D. Sellers
Organizations
- University of Arizona