Essays about: "MODIS LAI."

Found 3 essays containing the words MODIS LAI..

  1. 1. Can the introduction of the topographic indices in LPJ-GUESS improve the spatial representation of environmental variables?

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Alejandra Narváez Vallejo; [2016]
    Keywords : smooth topography; drainage area; slope; topographic wetness index; LPJ-GUESS; GIS; physical geography and ecosystem analysis; geography; geographic information systems; leaf area index; spatial patterns; MODIS LAI.; Earth and Environmental Sciences;

    Abstract : Ecosystem modelling is an always evolving science trying to catch the complexity of the nature and its principles to model environmental responses in a realistic way. Over and over, models try to introduce more variables and interactions to achieve better representations of phenomena of interest like the responses of the ecosystem to a fast changing world (climate change, land use change). READ MORE

  3. 2. Analysis of Arctic peak-season carbon flux estimations based on four MODIS vegetation products

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Antonin Kusbach; [2016]
    Keywords : satellite-derived data; vegetation indices; Arctic; net ecosystem exchange; big data analysis; Physical Geography and Ecosystem Science; Earth and Environmental Sciences;

    Abstract : Increased temperatures in high latitudes may alter the carbon dynamics throughout the Arctic. Modelled CO2 simulations show that current climate conditions constitute the Arctic a net carbon sink, though the large extent and fine landscape heterogeneity raise an uncertainty about the carbon sink/source status of the region. READ MORE

  4. 3. Comparison of MODIS-Algorithms for Estimating Gross Primary Production from Satellite Data in semi-arid Africa

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Martin Nilsson; [2013]
    Keywords : Leaf Area Index; LAI; Enhanced Vegetation Index; EVI; Normalized Vegetation Index; NDVI; Gross Primary Production; GPP; remote sensing; MODIS; FPAR; Fraction of Photosynthetically Active Radiation; Eddy Covariance; Africa; physical geography; Earth and Environmental Sciences;

    Abstract : The climatic patterns of the world are changing and with them the spatial distribution of global terrestrial carbon; the food and fiber of the world and in itself an important factor in the changing climate. Knowledge of how the terrestrial carbon stock is changing, its distribution and quantity, is important in understanding how the patterns of the world are changing and large scale models using remotely sensed data have emerged for this purpose. READ MORE