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Hingerl, Luitpold; Guug, Samuel; Kunstmann, Harald: Long-term eddy-covariance measurements of energy, water, and carbon fluxes across a savanna land-use gradient of daily intervals at Kayoro in West Africa [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.994811 (dataset in review), In: Hingerl, L et al.: Long-term eddy-covariance measurements of energy, water, and carbon fluxes across a savanna land-use gradient in West Africa [dataset publication series]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.994143 (dataset in review)

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Abstract:
This dataset provides long-term daily aggregated eddy-covariance, meteorological, radiation, and soil observations collected at the Kayoro cropland site in northern Ghana between 2013 and 2025. The observations originate from six stations representing a gradient of land-use types, including near-natural savanna (Nazinga, Mole), cropland (Kayoro), rainfed rice field (Janga), and (semi-)degraded grassland (Sumbrungu, Gorigo). Turbulent fluxes were derived from high-frequency (20 Hz) measurements using standard EC processing procedures implemented in EddyPro (v7.0.9), including despiking, coordinate rotation, spectral corrections, and Webb–Pearman–Leuning (WPL) density corrections. Quality assessment follows established stationarity and turbulence criteria, and quality flags are provided for all fluxes. The dataset is aggregated to a uniform 30-minute temporal resolution, with no gap filling applied. All variables are provided in standardized units and naming conventions consistent with FLUXNET guidelines to facilitate comparability and reuse. The dataset supports studies of land–atmosphere interactions, surface–atmosphere coupling, and the impacts of land-use and climate variability in a data-scarce region of the global tropics.
Keyword(s):
Carbon Flux; Eddy covariance; Energy balance; evapotranspiration; Land-Atmosphere; land use change; latent heat flux; meteorological data; radiation measurement; sensible heat flux; Soil Moisture; West Africa
Supplement to:
Sy, Souleymane; Bliefernicht, Jan; Manevski, Kiril; Guug, Samuel; Hingerl, Luitpold; Quesada, Benjamin; Oussou, Francis E; Kiese, Ralf; Davies, P; Jagdhuber, Thomas; Laux, Patrick; Woango, Moussa; Coulibaly, Amadou; Neidl, Frank; Steinbrecher, Rainer; Quansah, Emmanuel; Salack, Seyni; Amekudzi, L K; Kunstmann, Harald (preprint): Water use efficiency responses in contrasting agroecosystems and land management practices in West Africa. Research Square, https://doi.org/10.21203/rs.3.rs-8522874/v1
Related to:
Berger, Sina; Bliefernicht, Jan; Linstädter, Anja; Canak, Kristijan; Guug, Samuel; Heinzeller, Dominikus; Hingerl, Luitpold; Mauder, Matthias; Neidl, Frank; Quansah, Emmanuel; Salack, Seyni; Steinbrecher, Rainer; Kunstmann, Harald (2019): The impact of rain events on CO2 emissions from contrasting land use systems in semi-arid West African savannas. Science of the Total Environment, 647, 1478-1489, https://doi.org/10.1016/j.scitotenv.2018.07.397
Bliefernicht, Jan; Berger, Sina; Salack, Seyni; Guug, Samuel; Hingerl, Luitpold; Heinzeller, Dominikus; Mauder, Matthias; Steinbrecher, Rainer; Steup, G; Bossa, A Y; Waongo, M; Quansah, Emmanuel; Balogun, A A; Yira, Y; Arnault, Joel; Wagner, S; Klein, C; Gessner, Ursula; Knauer, K; Straub, A; Schönrock, R; Kunkel, R; Okogbue, E C; Rogmann, A; Neidl, Frank; Jahn, Carsten; Diekkrüger, Bernd; Aduna, A; Barry, Boubacar; Kunstmann, Harald (2018): The WASCAL Hydrometeorological Observatory in the Sudan Savanna of Burkina Faso and Ghana. Vadose Zone Journal, 17(1), 1-20, https://doi.org/10.2136/vzj2018.03.0065
Bliefernicht, Jan; Kunstmann, Harald; Hingerl, Luitpold; Rummler, Thomas; Andresen, Sabine; Mauder, Matthias; Steinbrecher, Rainer; Frieß, Rene; Gochis, David; Gessner, Ursula; Quensah, Emmanuel; Awotuse, Ayoola; Neidl, Frank; Jahn, Carsten; Barry, Boubacar (2013): Field and simulation experiments for investigating regional land–atmosphere interactions in West Africa: experimental set-up and first results. Proceedings of H01, IAHS-IAPSO-IASPEI Assembly, Gothenburg, Sweden, 359, https://elib.dlr.de/88029/1/Bliefernicht_etal_2013.pdf
Bliefernicht, Jan; Salack, Seyni; Waongo, M; Annor, Thompson; Laux, Patrick; Kunstmann, Harald (2022): Towards a historical precipitation database for West Africa: Overview, quality control and harmonization. International Journal of Climatology, 42(7), 4001-4023, https://doi.org/10.1002/joc.7467
Guug, Samuel; Sy, Souleymane; Quansah, Emmanuel; Bliefernicht, Jan; Neidl, Frank; Steinbrecher, Rainer; Ayamba, Michael; Frempong, Alex; Davies, P; Spangenberg, Ines; Oussou, Francis E; Diallo, Belko Aziz; Salack, Seyni; Hackman, Kwame; Amekudzi, L K; Ogunjobi, Kehinde; Kunstmann, Harald (2025): Methane emissions from rice cultivation in West Africa and compensation options from nature reserve forests. Environmental Research Letters, 20(4), 044050, https://doi.org/10.1088/1748-9326/adc28c
Hingerl, Luitpold; Bliefernicht, Jan; Guug, Samuel; Sy, Souleymane; Neidl, Frank; Jagdhuber, Thomas; Kunstmann, Harald (2025): Comparative analysis of land–atmosphere interactions across three contrasting ecosystems in the West Sudanian Savanna. Journal of Hydrology: Regional Studies, 61, 102751, https://doi.org/10.1016/j.ejrh.2025.102751
Nadolski, Laura; Bliefernicht, Jan; Petrovic, Dragan; Rauch, Manuel; Sy, Souleymane; Guug, Samuel; Steinbrecher, Rainer; Neidl, Frank; Hingerl, Luitpold; Kunstmann, Harald (2024): Exploring and closing the energy balance of eddy covariance measurements along a land use gradient in the West African Sudanian savanna. Frontiers in Water, 6, 1393884, https://doi.org/10.3389/frwa.2024.1393884
Quansah, Emmanuel; Mauder, Matthias; Balogun, A A; Amekudzi, L K; Hingerl, Luitpold; Bliefernicht, Jan; Kunstmann, Harald (2015): Carbon dioxide fluxes from contrasting ecosystems in the Sudanian Savanna in West Africa. Carbon Balance Manage, 10(1), 1, https://doi.org/10.1186/s13021-014-0011-4
Sy, Souleymane; Quesada, Benjamin (2020): Anthropogenic land cover change impact on climate extremes during the 21st century. Environmental Research Letters, 15(3), 034002, https://doi.org/10.1088/1748-9326/ab702c
Funding:
Federal Ministry of Education and Research (BMBF), grant/award no. 01LG2089A: CONCERT-West Africa
Coverage:
Latitude: 10.918100 * Longitude: -1.329000
Date/Time Start: 2013-01-01T00:00:00 * Date/Time End: 2025-08-31T00:00:00
Minimum ELEVATION: 292 m a.s.l. * Maximum ELEVATION: 292 m a.s.l.
Event(s):
WASCAL_Kayoro * Latitude: 10.918100 * Longitude: -1.329000 * Date/Time Start: 2013-01-01T00:00:00 * Date/Time End: 2025-08-31T23:30:00 * Elevation: 292.0 m * Method/Device: Sonic anemometer, Campbell Scientific, CSAT3; Infrared gas analyzer, LI-COR, Li-7500A * Comment: land use: Cropland; Located in a sparsely populated area. Represents a cropland ecosystem alternately used for rain-fed cultivation and fallow. When cultivated, the area around the tower is mainly covered by groundnut crops of about 30 cm height. During fallow periods, grass may reach up to about 1 m.
Comment:
The half-hourly datasets contain the full set of processed eddy-covariance fluxes, radiation components, meteorological variables, turbulence parameters, and soil measurements. The daily datasets contain aggregated values derived from the half-hourly observations, using appropriate aggregation methods (e.g. means for state variables and fluxes, sums for precipitation).
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Event labelEventHingerl, Luitpold
2ELEVATIONElevationm a.s.l.Hingerl, LuitpoldGeocode
3DATE/TIMEDate/TimeHingerl, LuitpoldGeocode
4Heat, flux, latentQeW/m2Hingerl, LuitpoldEddy-Covariance Analyzer, Campbell Scientific, IRGASON [CSAT3A and EC150]
5Heat, flux, sensibleQhW/m2Hingerl, LuitpoldEddy-Covariance Analyzer, Campbell Scientific, IRGASON [CSAT3A and EC150]
6Net ecosystem exchange of carbon dioxideCO2 NEEµmol/m2/sHingerl, LuitpoldEddy-Covariance Analyzer, Campbell Scientific, IRGASON [CSAT3A and EC150]
7Momentum, fluxMomentum fluxkg/m/s2Hingerl, LuitpoldEddy-Covariance Analyzer, Campbell Scientific, IRGASON [CSAT3A and EC150]
8Soil heat, fluxSoil heat fluxW/m2Hingerl, LuitpoldHeat flux sensor, Hukseflux, HFP01SC
9Short-wave downward (GLOBAL) radiationSWDW/m2Hingerl, LuitpoldNet radiometer, Kipp & Zonen, CNR4 (CNR4)
10Short-wave upward (REFLEX) radiationSWUW/m2Hingerl, LuitpoldNet radiometer, Kipp & Zonen, CNR4 (CNR4)
11Long-wave downward radiationLWDW/m2Hingerl, LuitpoldNet radiometer, Kipp & Zonen, CNR4 (CNR4)
12Long-wave upward radiationLWUW/m2Hingerl, LuitpoldNet radiometer, Kipp & Zonen, CNR4 (CNR4)
13Net radiationNETW/m2Hingerl, LuitpoldNet radiometer, Kipp & Zonen, CNR4 (CNR4)
14PrecipitationPrecipmmHingerl, LuitpoldRain gauge
15EvapotranspirationETmmHingerl, LuitpoldEddy covariance processing quality assessment, LI-COR, EddyPro, v7.0.9
16Pressure, atmosphericPPPPhPaHingerl, LuitpoldWeather station, Campbell Scientific
17Humidity, relativeRH%Hingerl, LuitpoldHumidity-Temperature probe, Campbell Scientific, HMP155A
18Temperature, airTTT°CHingerl, LuitpoldHumidity-Temperature probe, Campbell Scientific, HMP155A
19Vapour pressure deficitVPDhPaHingerl, LuitpoldCalculated from temperature and humidity, standard psychrometric method
20Wind directiondddegHingerl, LuitpoldAnemometer, Campbell Scientific
21Wind speedffm/sHingerl, LuitpoldAnemometer, Campbell Scientific
22Friction velocityu*m/sHingerl, LuitpoldEddy covariance processing quality assessment, LI-COR, EddyPro, v7.0.9
23Obukhov stability parameterz/LHingerl, LuitpoldEddy covariance processing quality assessment, LI-COR, EddyPro, v7.0.9
24Monin-Obukhov-lengthMOSmHingerl, LuitpoldEddy covariance processing quality assessment, LI-COR, EddyPro, v7.0.9
25Soil water contentSWC%Hingerl, LuitpoldWater Content Reflectometer CS616, Campbell Scientificlayer 1 at 3 cm depth
26Temperature, soilT soil°CHingerl, LuitpoldSoil temperature probe, Campbell Scientific, TCAVlayer 1 at 3 cm depth
27Temperature, soilT soil°CHingerl, LuitpoldSoil temperature probe, Campbell Scientific, TCAVlayer 2 at 10 cm depth
28Temperature, soilT soil°CHingerl, LuitpoldSoil temperature probe, Campbell Scientific, TCAVlayer 3 at 35 cm depth
29Quality flagQFHingerl, LuitpoldWind sector disturbance flag (Kayoro)
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC) * Processing Level: PANGAEA data processing level 3 (ProcLevel3)
Size:
75276 data points

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