Essays about: "Arid Zone"

Showing result 1 - 5 of 11 essays containing the words Arid Zone.

  1. 1. Modelling gross primary production in semi-arid regions: effects on carbon uptake of intensive agriculture in southern Kenya

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Malin Ahlbäck; [2020]
    Keywords : Physical Geography; Ecosystem Analysis; GPP; Africa; Kenya; Land cover changes; Cropland; Remote sensing; Sentinel-2; Earth and Environmental Sciences;

    Abstract : Background and aim: Gross primary production (GPP) is the largest global carbon (C) flux and an important component for counteracting anthropogenic CO2 emissions, understanding vegetation dynamics, and sustaining universal human standards. Africa plays a prominent role in the global C cycle, though our understanding of GPP dynamics is largely hampered by a paucity of ground-based observations. READ MORE

  2. 2. Exploring the spatial relationship between NDVI and rainfall in the semi-arid Sahel with geographically weighted regression

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Stefanos Georganos; [2016]
    Keywords : geomatics; rainfall; Sahel; scale dependency; non-stationarity; physical geography and ecosystem analysis; geographically weighted regression; Earth and Environmental Sciences;

    Abstract : The Normalized Vegetation Difference Index (NDVI) is frequently used as a surrogate for vegetation properties and is often correlated with climatic variables such as rainfall. However, studies have shown that conventional regression models used to study the spatial relationship between NDVI and rainfall are often plagued by non-stationarity and are scale dependent. READ MORE

  3. 3. Sustainable urban landscape : a discussion drawn from 3 examples of new development projects in the Middle East

    University essay from SLU/Department of Landscape Architecture, Planning and Management (from 130101)

    Author : Rekha Kumar; [2014]
    Keywords : sustainable landscape; public realm; sustainable place making; commercial landscape; sustainability assessment; urban landscape;

    Abstract : Sustainable urban landscape is the intergal subjects in this thesis and public realm as a sub category of urban landscape has been main focus of this study. The thesis will introduce public realm design process of three urban development projects which are in the same regional context. Each case study has a different theme being: 1. READ MORE

  4. 4. Investigations of a stalactite from Al Hota cave in Oman and its implications for palaeoclimatic reconstructions

    University essay from Lunds universitet/Geologiska institutionen

    Author : Donna Bou-Rabee; [2013]
    Keywords : vätskeinneslutningar; droppstenar; Arabien; Oman; Al Hota; monsoon; speleothem; cave; isotope; climate; monsun; ITCZ; Earth and Environmental Sciences;

    Abstract : Speleothems and other cave sediments have proven to be valuable tools for climate reconstructions. They allow to reconstruct the changes of temperatures and precipitation over time even in arid areas where other types of sedimentary archives are scarce or even non-existent. READ MORE

  5. 5. Inter-annual memory effects between soil moisture and NDVI in the Sahel

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Yang Zhou; [2013]
    Keywords : Physical Geography and Ecosystem Science; GEM; memory effect; soil moisture; Sahel; rainfall; land cover; soil type; remote sensing; Earth and Environmental Sciences;

    Abstract : The Sahel lies in the semi-arid zone of North Africa between the Sahara Desert to the north and the savannas and rainforest to the south. In the Sahel, the variability of vegetation growth is predominately controlled by moisture reception in the concurrent rainy season. READ MORE