cops_nebt_ubt2t_flux_d: Modified Bowen ratio data of the energy balance network (NEBT) operating during COPS 2007: station UBT2T (Fussbach II)

Eigenmann, Rafael; Foken, Thomas

cops_nebt_ubt2t_flux_d: Modified Bowen ratio data of the energy balance network (NEBT) operating during COPS 2007: station UBT2T (Fussbach II)

hdl:21.14106/24ca1afab6600f9f6b12a61096fdd2d4a2932ceb

Eigenmann, Rafael; Foken, Thomas

Dataset

Summary: The modified Bowen ratio system at the station UBT2T near Fussbach was equipped with a USA-1 (METEK GmbH, Germany) sonic anemometer and two psychrometers (Frankenberger) above the target land use type acre/fallow in order to provide a complete time series of the turbulent fluxes of momentum, sensible and latent heat. The sampling frequency was 10 Hz. On the one hand, post-processing was performed using the software package TK2 (developed by the Department of Micrometeorology, University of Bayreuth) which produces quality assured turbulent flux data of momentum and sensible heat with an averaging interval of 30 min. The documentation and instruction manual of TK2 (see entry cops_nebt_ubt_info_1) and additional references about the applied flux corrections and post-field data quality control (see entry cops_nebt_ubt_info_2) as well as a document about the general handling of the flux data can be found in supplementary pdf-files within the energy balance and turbulence network (NEBT) experiment of the data base. On the other hand, the latent heat flux was calculated according to the Bowen ratio method (Liu and Foken, 2001). Additionally, all flux data were checked for an impact of possible internal boundary layers and the flux contribution from the target land use type intended to be observed to the total flux measured was calculated applying footprint modeling. Information and references about the internal boundary layer evaluation procedure and the footprint analysis are also given in the additional pdf-files. Pictures of the footprint climatology of the station as related to the land use and to the spatial distribution of the quality flags are included in a supplementary pdf-file (see cops_nebt_ubt2t_info_1).

References:
Liu, H. and Foken, T., 2001. A modified Bowen ratio method to determine sensible and latent heat fluxes. Meteorol. Z., 10: 71-80.
Project: COPS (Convective and Orographically-induced Precipitation Study)
Location(s): Black Forest, Kinzig Valley, Fussbach (ubt2t), Germany
Additional Information: cops_nebt_ubt_info_1: pdf-file with manual of software package TK2 provided by Uni Bayreuth
cops_nebt_ubt4etg_info_1: pdf-file with foot print climatology at station UBT4ETG (Hagenbuch)
cops_nebt__ubt3etg_info_1: pdf-file with foot print climatology at station UBT3ETG (Fischerbach)
cops_nebt_ubt1etg_info_1: pdf-file with foot print climatology at station UBT1ETG (Fussbach I)
cops_nebt_ubt2t_info_1: pdf-file with foot print climatology at station UBT2T (Fussbach II)
cops_nebt_mf1etg_info_1: pdf-file with foot print climatology at station MF1ETG (Niederrott)
cops_nebt_imk1etg_info_1: pdf-file with foot print climatology at station IMK1ETG (Hornisgrinde)
cops_nebt_ubn1etg_info_1: pdf-file with foot print climatology at station UBN1ETG (Deckenpfronn)
cops_nebt_imk7t_info_1: pdf-file with foot print climatology at station IMK7T (Igelsberg)
cops_nebt_imk2etg_info_1: pdf-file with foot print climatology at station IMK2ETG (Baden Airpark)
cops_nebt_imk5t_info_1: pdf-file with foot print climatology at station IMK5T (Oberkirch)
cops_nebt_ubt_info_2: pdf-file with information on quality control performed by Uni Bayreuth
cops_nebt_imk4t_info_1: pdf-file with foot print climatology at station IMK4T (Sasbach)
cops_nebt_mf2etg_info_1: pdf-file with foot print climatology at station MF2ETG (Nordfeld)
cops_nebt_imk3etg_info_1: pdf-file with foot print climatology at station IMK3ETG (Linkenheim)
cops_nebt_imk8t_info_1: pdf-file with foot print climatology at station IMK8T (Burnhaupt le Bas)
cops_nebt_imk6t_info_1: pdf-file with foot print climatology at station IMK6T (Bad Rotenfels)
uni_hohenheim_data_policy.txt
Spatial Coverage: Longitude 8.02 Latitude 48.37 Altitude: 180 m relativ to NN
Temporal Coverage: 2007-06-01 to 2007-08-31 (calendrical)
Use constraints: For scientific use only. No commercial use allowed. Please be aware of the common COPS/GOP/D-PHASE data policy (http://cops.wdc-climate.de/)
Data Catalog: World Data Center for Climate
Access constraints: Authorized Persons
Size: 1013.23 KiB (1037548 Byte)
Format: NetCDF
Status: completely archived
Creation Date: 2008-12-03
Download Permission: Please login to check permission and download options

Cite as: [ Derived from parent entry - See data hierarchy tab ]
Eigenmann, Rafael; Foken, Thomas (2012). cops_nebt_ubt_flux: Eddy-covariance turbulence data from COPS energy balance and turbulence network stations run by University of Bayreuth during COPS 2007. World Data Center for Climate (WDCC) at DKRZ. https://doi.org/10.1594/WDCC/cops_nebt_ubt_flux

BibTeX RIS

Completeness report

Measurement data are only available at the beginning of the measurement period until 2007-06-29 and from 2007-07-27 on. Between these two dates, data ...

Description: Measurement data are only available at the beginning of the measurement period until 2007-06-29 and from 2007-07-27 on. Between these two dates, data had to be rejected due to massive invasion of the fast growing topinambur from the neighboring field. Furthermore, no data exist from 2007-06-03 until 2007-06-16 and on 2007-08-10, 2007-08-15 and 2007-08-19 due to measuring device failure. Data availability of the latent heat flux is additionally reduced due to quality check failures and due to often not adequately moistened wet thermometers of the psychrometers thus not allowing for the calculation of a water vapor pressure gradient according to the Sprungs psychrometric formula.

Variable	Aggregation	Unit
air_temperature-at227cmCF	30min mean	degC
air_temperature-at90cmCF	30min mean	degC
atmospheric_stability_parameter_in_surface_layer	30min mean	1
canopy_heightCF	30min mean	m
fetch_length	30min mean	m
friction_velocity	30min mean	m s-1
internal_boundary_layer_thickness	30min mean	m
latitudeCF	not filled	degree_north
longitudeCF	not filled	degree_east
sonic_temperature	30min mean	degC
status_flag_of_friction_velocity	30min mean	none
status_flag_of_internal_boundary_layer_thickness	30min mean	none
status_flag_of_surface_upward_sensible_heat_flux	30min mean	none
surface_altitudeCF	not filled	m
surface_upward_latent_heat_fluxCF	30min mean	W m-2
surface_upward_sensible_heat_fluxCF	30min mean	W m-2
target_land_use_contribution	30min mean	0.01
upward_air_velocity (variance)CF	30min mean	m2 s-2
variance_of_sonic_temperature	30min mean	degC2
water_vapor_pressure-at227cm_above_surfaceCF	30min mean	hPa
water_vapor_pressure-at90cm_above_surfaceCF	30min mean	hPa
wind_from_directionCF	30min mean	degree
wind_speedCF	30min mean	m s-1
x_wind (variance)CF	30min mean	m2 s-2
y_wind (variance)CF	30min mean	m2 s-2

Contact type	Person	ORCID	Organization
Investigator	Rafael Eigenmann	-	University of Bayreuth
Originator	Thomas Foken	-	University of Bayreuth

Parent

cops_nebt: contains data from Energy Balance and TurbulenceNetwork during COPS Campaign

Details

Parent project(s)

Convective and Orographically-induced Precipitation Study

[Entry acronym: cops_nebt_ubt2t_flux_d] [Entry id: 2190669]