NGEE Arctic CO2, CH4 and Energy Eddy-Covariance (EC) Flux Tower Auxiliary Measurements, Utqiagvik (Barrow), Alaska, 2012 - 2019

Dataset · Mon Jun 08 04:00:00 EDT 2020

DOI:https://doi.org/10.15485/1362279· OSTI ID:1362279

Dengel, Sigrid; Billesbach, Dave; Torn, Margaret

Measurements began in September 2012 and are generally made throughout the snow-free growing season starting from April (pre-thawing) until November (freeze-up) when the instrumentation is taken down for maintenance and instrument calibration. CO2, CH4 and energy fluxes using the Eddy Covariance (EC) technique (Baldocchi 2003) and meteorological measurements are reported as 30-minute averages. The tower site is registered with AmeriFlux as US-NGB. See http://ameriflux.lbl.gov/sites/siteinfo/US-NGB for more information. Reported data include: (1) additional/extra meteorological and eddy covariance CO2, CH4 and energy flux data, (2) binned spectra for the three wind components, the sonic temperature and gas densities together with the binned cospectra for covariances of w (vertical wind component) and gas densities, (3) binned ogives (cumulative (co)spectra) for the three wind components, the sonic temperature and gas densities, and (4) tower site footprint matrices. Meteorological and eddy covariance CO2, CH4 and energy flux data (AmeriFlux BASE data product) are available from AmeriFlux https://doi.org/10.17190/AMF/1436326. The tower site is adjacent to the NGEE Arctic Tram system with several complementary time-series measurements https://doi.org/10.5440/1558782.This dataset supersedes the previously released dataset "Eddy-Covariance and auxiliary measurements, NGEE-Barrow, 2012-2013" DOI:10.5440/1124200 as this new product includes data for the longer time period processed using consistent methods for the entire record. The Next-Generation Ecosystem Experiments: Arctic (NGEE Arctic), was a research effort to reduce uncertainty in Earth System Models by developing a predictive understanding of carbon-rich Arctic ecosystems and feedbacks to climate. NGEE Arctic was supported by the Department of Energy's Office of Biological and Environmental Research. The NGEE Arctic project had two field research sites: 1) located within the Arctic polygonal tundra coastal region on the Barrow Environmental Observatory (BEO) near Utqiagvik (Barrow), Alaska and 2) multiple areas in the discontinuous permafrost region of the Seward Peninsula north of Nome, Alaska. Through observations, experiments, and synthesis with existing datasets, NGEE Arctic provided an enhanced knowledge base for multi-scale modeling and contributed to improved process representation at global pan-Arctic scales within the Department of Energy's Earth system Model (the Energy Exascale Earth System Model, or E3SM), and specifically within the E3SM Land Model component (ELM).

• Research Organization: Next-Generation Ecosystem Experiments (NGEE) Arctic
• Sponsoring Organization: U.S. DOE > Office of Science > Biological and Environmental Research (BER)
• DOE Contract Number: AC02-05CH11231
• OSTI ID: 1362279
• Report Number(s): https://doi.org/10.5440/1362279; NGA112
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
Barrow Environmental Observatory
Barrow
Alaska
CH4 flux
CH4 mixing ratio
CO2 concentration
CO2 flux
CO2 mixing ratio
EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC CHEMISTRY
EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC RADIATION
EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC TEMPERATURE
EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS
ET
Evapotranspiration
PAR
RH
U*
US-NGB
Utqiagvik
Alaska
VPD
WD
WS
air temperature
dew temperature
friction velocity
incoming longwave radiation
incoming shortwave radiation
incoming solar radiation
latent heat flux
net radiation
outgoing longwave radiation
outgoing shortwave radiation
photosynthetically active radiation
relative humidity
sensible heat flux
soil temperature
water vapor density
water vapor flux
wind direction
wind speed