Search for dissertations about: "arid"

Showing result 1 - 5 of 53 swedish dissertations containing the word arid.

  1. 1. Soil Salinity and Crop Yield at El-Salam Canal Area, Egypt

    Author : Yasser Hamed Abd El Mageed; Lunds universitet.; Lund University.; [2008]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; El-Salam Canal; Egypt; Salinity; Crop yield; Arid;

    Abstract : Soil salinity and solute movements through the soil are considered the most important challenge facing agriculture in Arid and Semiarid regions (e.g., Egypt). READ MORE

  2. 2. Floodwater harvesting for artificial recharge of groundwater - estimation and prediction for arid Iran

    University dissertation from Lund University (Media-Tryck)

    Author : Hossein Hashemi; Lunds universitet.; Lund University.; [2014]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Artificial recharge; Groundwater modeling; Climate change; Spate irrigation; Arid area; FWS; GBP;

    Abstract : Popular Abstract in Swedish Regnvatteninsamling genom översvämningskontroll för artificiell grundvatteninjektering är en traditionellt använd metod i arida och semiarida Iran. Metoden har använts under flera tusen år för att öka andelen vatten som kan användas till jordbruksproduktion. READ MORE

  3. 3. Applicability of Remote Sensing Techniques to Groundwater Exploration in Semi-Arid Hard Rock Terrain - A Systematic Approach

    University dissertation from Chalmers University of Technology

    Author : Nils Kellgren; Chalmers tekniska högskola.; Chalmers University of Technology.; [2002]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Geovetenskap; Earth sciences; remote sensing; GIS; groundwater exploration; borehole siting; semi-arid; hard rock; lineaments; decision support;

    Abstract : Groundwater exploration in hard rock terrain involves complex decisions, attributable to a lack of reliable data and the heterogeneous nature of the geological environment. Targets for drilling of boreholes are commonly selected on the basis of knowledge, or perceptions, of groundwater occurrence in a specific area. READ MORE

  4. 4. Morphometric and Landscape Feature Analysis with Artificial Neural Networks and SRTM data Applications in Humid and Arid Environments

    University dissertation from Stockholm : KTH

    Author : Amir Houshang Ehsani; KTH.; [2008]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Self Organizing Map; Neural Network; Morphometric Feature; Landscape; Yardang; Lut Desert; Potential natural vegetation; geoecosystem; Landform; Landsat ETM ; Morphometric Parameters; SRTM; Resolution; Curvatures; DEM.; TECHNOLOGY; TEKNIKVETENSKAP;

    Abstract : This thesis presents a semi-automatic method to analyze morphometric features and landscape elements based on Self Organizing Map (SOM) as an unsupervised Artificial Neural Network algorithm in two completely different environments: 1) the Man and Biosphere Reserve “Eastern Carpathians” (Central Europe) as a complex mountainous humid area and 2) Lut Desert, Iran, a hyper arid region characterized by repetition of wind-eroded features.In 2003, the National Aeronautics and Space Administration (NASA) released the SRTM/ SIR-C band data with 3 arc seconds (approx. READ MORE

  5. 5. GIS-hydrological modelling in arid lands : a geographical synthesis of surface waters for the African Red Sea region in the Sudan

    University dissertation from Lund University Press

    Author : Badr-Eldin Taha Osman; [1996]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; teknisk geografi; Hydrogeology; geographical and geological engineering; Hydrogeologi; teknisk geologi; runoff.; infiltration; evaporation; rainfall; deterministic and stochastic explanations; weighting methods; hydrological modelling; spatial modelling; GIS; geographical hydrology; the Sudanese Red Sea region; arid lands; water resources;

    Abstract : Popular Abstract in Swedish Forskning och studier av ytvattensystem i sudanesiska röda havsområdet för utveckling av relevant metodik medför ett antal konceptuella svårigheter. Ett huvudsakligt problem är den begränsade tillgången till litteratur och mätdata för modellutveckling. READ MORE