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Author Nicholson, S.E.
Title Evolution and current state of our understanding of the role played in the climate system by land surface processes in semi-arid regions Type Journal Article
Year 2015 Publication (up) Global and Planetary Change Abbreviated Journal Global and Planetary Change
Volume 133 Issue Pages 201-222
Keywords Land atmosphere interaction; Land surface processes; Mineral dust; Soil moisture; Plant water relationships; Semi-arid regions; Surface hydrological processes; Sahel; Patch dynamics; Convection; Self-organization; Catastrophic shifts
Abstract The role of the land surface in climate and weather has been a major research focus since the 1970s. Since that time our understanding of the issue has greatly changed and many new themes in several disciplines are being considered. This article summarizes the changes in our understanding that have taken place in research on this topic and reviews principally papers that have appeared in the last two decades. Several other papers provide comprehensive reviews of literature that appeared prior to that time. The major changes that have occurred include 1) more sophisticated and rigorous analysis of desertification, 2) increased emphasis on hydrological processes, including the role of groundwater, 3) use of multi-model ensembles and regional models, 4) the emergence of the domain of ecohydrology, with emphasis on detailed feedbacks between water availability and vegetation, 5) examination of the hypothesis that vegetation feedback can produce abrupt climate change, 6) emphasis on the impacts on convective or synoptic-scale systems, and 7) consideration of the impact of aerosols, including the Saharan Air Layer. With the exception of desertification, each of these topics is reviewed.
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ISSN 0921-8181 ISBN Medium
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Call Number FCI @ refbase @ Serial 846
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