TROPOSPHERIC LAPSE-RATE IN DEPENDENCE ON SURFACE-TEMPERATURE

Analysis of the tropospheric lapse rate relation with temperature T near surface in the interannual variability and in the annual cycle is carried out on the basis of the 15-year (1957-1971) monthly mean data for the Northern Hemisphere. The estimate of the sensitivity parameter of gamma to change of T is obtained near 0.03 km-1 for NH on the whole. The estimates of d-gamma/dT0 from the data in interannual variability change from 0.04 km-1 over the ocean to 0.06 km-1 over land for NH on the whole. The appropriate values from data in the annual cycle are estimated from 0.02-0.04 km-1 (in different variants of calculations) to 0.04-0.05 km-1. Along with a general tendency of the gamma-increase with the T increase for troposphere of NH on the whole, there are noted also the latitude-altitude and latitude-longitude regions in the atmosphere with a negative correlation of gamma and T.