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Browsing by Subject "Eddy covariance"

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Are sap flow measurements useful for determining water use of fruit orchards, when absolute values are important?

Author: Taylor, NJ ; Ibraimo, NA ; Annandale, JG ; Everson, CS ; Vahrmeijer, JT ; Gush, Mark B Date: Jun 2013 The determination of accurate figures for orchard water use is critical for improved irrigation scheduling and for the issuing of water licenses. Under- or over estimations can have serious implications for production and water resources in ... Read more
Drivers of inter-annual variability in Net Ecosystem Exchange in a semi-arid savanna ecosystem, South Africa

Author: Archibald, SA ; Kirton, A ; Van der Merwe, Martina R ; Scholes, RJ ; Williams, CA ; Hanan, N Date: 2009 Inter-annual variability in primary production and ecosystem respiration was explored using eddy-covariance data at a semi-arid savanna site in the Kruger Park, South Africa. New methods of extrapolating night-time respiration to the entire ... Read more
Estimation of net ecosystem exchange at the Skukuza flux site, Kruger National Park, South Africa

Author: Nickless, A ; Archibald, SA ; Van der Merwe, Martina R ; Scholes, RJ ; Williams, CA ; Hanan, N Date: Mar 2011 Annual estimates of gross primary production (GPP) and ecosystem respiration (Reco) were obtained for the Skukuza flux site, Kruger Park, South Africa, based on the eddy covariance flux data. A new method of extrapolating night-time respiration ... Read more
Integrating project-based infrastructures with long-term greenhouse gas observations in Africa

Author: Bieri, M ; Du Toit, J ; Feig, G ; Maluta, NE ; Mantlana, Khanyisa B ; Mateyisi, Mohau J ; Midgley, GF ; Mutanga, Shingirirai S ; Von Maltitz, G ; Brümmer, C Date: May 2022 There is a lack of long-term greenhouse gas (GHG) measurement infrastructures in Africa. This limits our understanding of the temporal dynamics of the biosphere-atmosphere exchange of carbon in response to climate change. Where relevant ... Read more
An intercomparison of satellite-based daily evapotranspiration estimates under different eco-climatic regions in South Africa

Author: Majozi, Nobuhle P ; Mannaerts, CM ; Ramoelo, Abel ; Mathieu, Renaud SA ; Mudau, Azwitamisi E ; Verhoef, W Date: Mar 2017 Knowledge of evapotranspiration (ET) is essential for enhancing our understanding of the hydrological cycle, as well as for managing water resources, particularly in semi-arid regions. Remote sensing offers a comprehensive means of monitoring ... Read more
Precipitation as driver of carbon fluxes in 11 African ecosystems

Author: Merbold, L ; Ardo, J ; Arneth, A ; Scholes, RJ ; Nouvellon, Y ; De Grandcourt, A ; Archibald, SA ; Bonnefond, JM ; Boulain, N ; Bruemmer, C ; Brueggemann, N ; Cappelaere, B ; Ceschia, E ; El-Khidir, HAM ; El-Tahir, BA ; Falk, U ; Lloyd, J ; Kergoat, L ; Le Dantec, V ; Mougin, E ; Muchinda, M ; Mukelabai, MM ; Ramier, D ; Roupsard, O ; Timouk, F ; Veenendaal, EM ; Kutsch, L Date: 2008 This study reports carbon and water fluxes between the land surface and atmosphere in eleven different ecosystems types in Sub-Saharan Africa, as measured using eddy covariance (EC) technology in the first two years of the CarboAfrica network ... Read more
South African carbon observations: CO2 measurements for land, atmosphere and ocean

Author: Feig, Gregor T ; Joubert, Warren R ; Mudau, Azwitamisi E ; Monteiro, Pedro MS Date: Nov 2017 Monitoring of atmospheric CO2 and other greenhouse gases (GHGs) has been identified as a priority by international agencies, such as the United Nations Framework Convention on Climate Change and government departments that are interested in ... Read more
Validation of global evapotranspiration product (MOD16) using flux tower data in the African savanna, South Africa

Author: Ramoelo, Abel ; Majozi, Nobuhle P ; Mathieu, Renaud SA ; Jovanovic, Nebojsa ; Nickless, A ; Dzikiti, Sebinasi Date: Aug 2014 Globally, water is an important resource required for the survival of human beings. Water is a scarce resource in the semi-arid environments, including South Africa. In South Africa, several studies have quantified evapotranspiration (ET) in ... Read more

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Browsing by Subject "Eddy covariance"

Browsing by Subject "Eddy covariance"

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