Essays about: "arcmap"

Showing result 11 - 15 of 67 essays containing the word arcmap.

  1. 11. Groundwater modeling of Krycklan catchment and evaluation of the groundwater discharge distribution

    University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

    Author : Sandra Edström; [2022]
    Keywords : groundwater modelling; groundwater flow; Krycklan catchment; topography-controlled groundwater surface; evapotranspiration; groundwater discharge; groundwater recharge; grundvattenmodellering; grundvattenflöde; Krycklan avrinningsområde; topografi-kontrollerad grundvattenyta; evapotranspiration; grundvattenutflöde; grundvatteninfiltration;

    Abstract : This thesis aimed to evaluate the groundwater discharge distribution in the Krycklan catchment by developing a groundwater flow model using COMSOL Multiphysics and assuming a topography- controlled groundwater surface. Previous research has shown that the groundwater surface can be modeled as a subdued replica of the topography in humid climate regions where the permeability of the subsurface is low and where the groundwater surface is shallow. READ MORE

  2. 12. The assessment of ecosystem services provided by forest edge effects on fields in a fragmented Swedish agricultural landscape : a methodological framework

    University essay from SLU/Dept. of Crop Production Ecology

    Author : Juliette Nguyen; [2022]
    Keywords : carbon sequestration; cropping systems; DSSAT; ecosystem services; edge effect; food production; landscape diversification; landscape fragmentation; soil heterogeneity; soil organic carbon; spatial variability; total nitrogen; yield;

    Abstract : Agricultural expansion, prompted by increasing global food demand, has fragmented, simplified, and homogenized the landscape in the last decades. The resilience and sustainability of croplands are at stake, resulting in a hight vulnerability to climate change, and having major impacts on environmental protection, biodiversity preservation and food security. READ MORE

  3. 13. The role of urban agriculture towards livelihood and food security : the case of Addis Ababa, Ethiopia

    University essay from SLU/Dept. of Urban and Rural Development

    Author : Alemayehu Getachew Anberbir; [2022]
    Keywords : Urban agriculture; livelihood; food security; Urbanization; Addis Ababa;

    Abstract : Urban agriculture plays a major role in providing food and income in cities. It also serves as a tool for poverty alleviation. READ MORE

  4. 14. Recurring Slope Lineae on the Northern Hemisphere of Mars: an investigation into the new candidate sites

    University essay from Göteborgs universitet/Institutionen för geovetenskaper

    Author : Andreas Eriksson; [2021-04-06]
    Keywords : Recurring Slope Lineae; RSL; Mars; HiRISE; Candidate sites; GIS; Northern hemisphere;

    Abstract : Recurring Slope Lineae (RSL), are dark markings found on slopes with a steepness of 25°- 45°. Their width is between 0.5-5 m but they can become hundreds of meters long. They grow incrementally during warm seasons; fade during cold seasons and appear again the following Mars year. READ MORE

  5. 15. Post-Wildfire Debris Flows: Mapping and Analysis of Risk Factors in Western North America

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Annejet Tuinstra; [2021]
    Keywords : wildfires; debris flows; water repellent soil; North America; skogsbränder; jordskred; vattenavvisande jordlager; Nordamerika;

    Abstract : Climate change is leading to in an increase in frequency and severity of wildfires, which in turn can result in the formation of runoff-initiated post-wildfire debris flows. This type of debris flows is, like most debris flows, triggered by heavy precipitation events. READ MORE