Sökning: "wet-dry areas"
Hittade 4 uppsatser innehållade orden wet-dry areas.
1. Corrosion initiation induced by sodium sulfate and sodium chloride particles on Cu and the golden alloy Cu5Al5Zn at simulated atmospheric conditions
Master-uppsats, KTH/MaterialvetenskapSammanfattning : Effects of sodium sulfate (Na2SO4) particle deposition on the atmospheric corrosion of copper (Cu) metal and a Cu-based alloy (Cu5Al5Zn) used in architectural applications were investigated at laboratory conditions compared with effects induced by sodium chloride (NaCl) and to some extent ammonium sulfate (NH4)2SO4 induced corrosion. Pre-deposited surfaces were exposed to repeated wet/dry conditions in a climatic chamber and the formation of corrosion products were assessed using light optical microscopy (LOM), scanning electron microscopy with elemental analysis (SEM/EDS), Fourier transform infrared techniques (FTIR microscopy) and cathodic reduction (CR). LÄS MER
2. Development of a Flood Model Based on Globally-Available Satellite Data for the Papaloapan River, Mexico
Master-uppsats, Uppsala universitet/Institutionen för geovetenskaperSammanfattning : Flood inundation modelling is highly dependent on an accurate representation of floodplain topography. These remotely sensed accurate data are often not available or expensive, especially in developing countries. LÄS MER
3. Refining fuel loads in LPJ-GUESS-SPITFIRE for wet-dry areas : with an emphasis on Kruger National Park in South Africa
Master-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskapSammanfattning : Eld är en av de viktigaste störningsprocesserna som påverkar den terrestra biosfären genom att forma vegetationens spridning, komposition, struktur, växtdiversitet och biokemiska cykler. Några av de mest påverkade ekosystemen är våt-torra områden, här klassificerade som savann eller Medelhavsområden. LÄS MER
4. Mapping wetland areas on forested landsacpes using Radarasat-2 and Landsat-5 TM data
Master-uppsats, SLU/Dept. of Forest Resource ManagementSammanfattning : Wetlands are an important ecosystem for many vital functions such as groundwater recharge, flood control, water quality improvement, and to mitigate erosion. Monitoring and mapping wetlands on a large scale is becoming increasingly more important, and satellite remote sensing provides a practical approach. LÄS MER