Essays about: "validation satellite observations"

Found 4 essays containing the words validation satellite observations.

  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

  3. 2. Cloud Overlap Assumption and Cloud Cover Validation for HARMONIE-AROME

    University essay from Uppsala universitet/Luft-, vatten- och landskapslära

    Author : Freja Söderberg; [2016]
    Keywords : Cloud overlap assumption; HARMONIE-AROME; total cloud cover; SYNOP observations; MSG-data; Molnöverlappsantagande; HARMONIE-AROME; total molnmängd; SYNOP-observationer; MSG-data;

    Abstract : One major challenge in representing the state of the atmosphere through weather forecast models, is the parametrization of sub-grid clouds. At every vertical column of grid cells within a weather forecast model, the fractional cloud cover is assumed to overlap according to a prescribed Cloud Overlap Assumption (COA). READ MORE

  4. 3. Relationship between tree species composition and phenology extracted from satellite data in Swedish forests

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Stefan Arvidsson; [2015]
    Keywords : MODIS; forests mapping; fractional mapping; satellite derived phenology; GIS; Physical Geography and Ecosystem analysis; TIMESAT; NDVI; EVI; Earth and Environmental Sciences;

    Abstract : This study investigated the “relationship between tree species composition and phenology extracted from satellite data in Swedish forests”. The proposed method investigated in this study aims at mapping the fractional composition of deciduous/coniferous tree species and also the fractional composition of Norway spruce (Picea abies) and several pine (Pinus sp. READ MORE

  5. 4. Validation of Remote Sensing Snow Cover Analysis

    University essay from Uppsala universitet/Luft-, vatten- och landskapslära

    Author : Anna Geidne; [2005]
    Keywords : snow cover products; validation satellite observations; NESDIS; MSG images;

    Abstract : The by SMHI (Swedish Meteorological and Hydrological Institute) developed snow cover product, that analyses snow cover from satellite images, needs to be validated. A reliable validation method should be developed and concentrated to verify the snow cover analyses from images emerged from the recently operative European MSG-satellite. READ MORE