caa a22 4500 467937567 CHVBK 20180406153001.0 cr unu---uuuuu 170328e20061101xx s 000 0 eng 10.1007/s00703-005-0174-3 doi (NATIONALLICENCE)springer-10.1007/s00703-005-0174-3 Soil occupation and atmospheric variations over Sobradinho Lake area. Part two: a regional modeling study [Elektronische Daten] [M. F. Correia, M. A. F. da Silva Dias, M. R. da Silva Aragão] Summary: The impact of the changes on soil cover and land use brought about by the construction of the Sobradinho Dam in the semi-arid region of the São Francisco River Hydrographic Basin is analyzed by means of a numerical model RAMS. Disregarding the influence of a large scale flow, a set of factors were responsible for the creation of a rather complex circulation system that includes mountain-valley winds, lake breeze (LB) and non-conventional circulation all induced by the surface non-homogeneous aspect. Results have demonstrated that the implementation of works of such magnitude brings about environmental changes in an area that stretches far beyond the surroundings of the reservoir. The soil cover alterations due to the ever increasing development of the area with the presence of irrigated crops in a sparsely vegetated region (caatinga) does affect land surface characteristics, occasioning for that matter the splitting of the available energy into latent and sensible heat fluxes. LB behavior varies in accordance with atmospheric conditions and also in view of the type of vegetation found in the lake surrounding areas. Hydro availability in root zones, even under adverse atmospheric conditions (high temperature and low air humidity) brings up the high rates of evaporation and plant transpiration that contribute towards the increase of humidity and the fall of temperature in lower atmospheric layers. Springer-Verlag, 2006 Correia M. F. Departamento de Ciências Atmosféricas, Universidade Federal de Campina Grande (UFCG), Brazil aut da Silva Dias M. A. F. Departamento de Ciências Atmosféricas, Universidade de São Paolo (USP), São Paolo, Brazil aut da Silva Aragão M. R. Departamento de Ciências Atmosféricas, Universidade Federal de Campina Grande (UFCG), Brazil aut Meteorology and Atmospheric Physics Springer-Verlag 94/1-4(2006-11-01), 115-128 0177-7971 94:1-4<115 2006 94 703 https://doi.org/10.1007/s00703-005-0174-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00703-005-0174-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Correia M. F. Departamento de Ciências Atmosféricas, Universidade Federal de Campina Grande (UFCG), Brazil aut NATIONALLICENCE 700 1- da Silva Dias M. A. F. Departamento de Ciências Atmosféricas, Universidade de São Paolo (USP), São Paolo, Brazil aut NATIONALLICENCE 700 1- da Silva Aragão M. R. Departamento de Ciências Atmosféricas, Universidade Federal de Campina Grande (UFCG), Brazil aut NATIONALLICENCE 773 0- Meteorology and Atmospheric Physics Springer-Verlag 94/1-4(2006-11-01), 115-128 0177-7971 94:1-4<115 2006 94 703 Metadata rights reserved Springer special CC-BY-NC licence nationallicence SWISSBIB 467937567 BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer