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NACP Site: Tower Meteorology, Flux Observations with Uncertainty, and Ancillary Data

Overview

Data setNACP Site: Tower Meteorology, Flux Observations with Uncertainty, and Ancillary Data
DOIhttps://doi.org/10.3334/ORNLDAAC/1178
Release date2013-08-09
ProjectNorth American Carbon Program (NACP)
Time period1991-01-01 to 2007-12-31

Usage Metrics

CountEarliest DateLatest DateData Usage
Citations1620102016Publications citing this data set
Downloads1552013-08-212017-05-054853 total files downloaded

Description

This data set contains meteorological, carbon cycle flux, phenology, and ancillary data measured at 47 eddy covariance flux tower sites across North America. The data were used by North American Carbon Program (NACP) Site-Level Synthesis as model driver data and for assessing how well 24 Terrestrial Biosphere Models simulated carbon processes across vegetation types and environmental conditions. *The meteorology data include eight variables: air temperature (K), specific humidity (kg/kg), wind speed (m/s), precipitation (kg/m2/s), surface pressure (Pa), surface incident shortwave radiation (W/m2), surface incident longwave radiation (W/m2), and CO2 concentration (ppm). Gap-filled data were used by modeling teams as input model driver data. *Measured fluxes of net ecosystem exchange (NEE) and derived gross primary productivity (GPP) and respiration (R) and respective calculated uncertainty estimates are provided for each tower site at the native time resolution of the observations (30 or 60-minute) as well as the diurnal, seasonal, and annual time scales. The data were gap-filled following a standard protocol. Components of uncertainty include uncertainties resulting from turbulence, gap-filling, flux partitioning, and u* threshold determination. Flux observations and uncertainty data were used to assess how well models simulated carbon processes. *Remotely sensed NDVI, LAI, and fPAR phenology data were derived from the GIMMS version g NDVI data set for each flux tower site. Phenology data were used by some modeling teams as input model driver data. *Ancillary data and information describe tower location and physical characteristics, disturbance history, and biological and ecological attributes of the vegetation, litter, and soil. These ancillary data were used by modeling teams as input model driver data. The data files are in both ASCII text and NetCDF formats (ALMA standard). The compilation of these data was facilitated by the NACP Modeling and Synthesis Thematic Data Center (MAST-DC).

Data set documentation

Citation

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Barr, A.G., D.M. Ricciuto, K. Schaefer, A. Richardson, D. Agarwal, P.E. Thornton, K.J. Davis, R.B. Cook, D.Y. Hollinger, C. van Ingen, B. Amiro, A.E. Andrews, M.A. Arain, D. Baldocchi, T.A. Black, P. Bolstad, P. Curtis, A. Desai, D. Dragoni, L. Flanagan, L. Gu, G. Katul, B.E. Law, P.M. Lafleur, H. Margolis, R. Matamala, T. Meyers, J.H. McCaughey, R. Monson, J.W. Munger, W. Oechel, R. Oren, N.T. Roulet, M. Torn, and S.B. Verma. 2013. NACP Site: Tower Meteorology, Flux Observations with Uncertainty, and Ancillary Data. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/1178

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Data Files

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Data File (Granule)File SizeDatesLatitudeLongitude
CA-TP1_observation.zip 4.4MB 2003-01-01 to 2007-12-31 42.66N80.56W
US-Ne3_observation.zip 4.4MB 2001-01-01 to 2006-12-31 41.18N96.44W
US-Ne1_observation.zip 4.5MB 2001-01-01 to 2006-12-31 41.17N96.48W
US-Ton_observation.zip 11.7MB 2001-01-01 to 2007-12-31 38.43N120.97W
CA-Oas_observation.zip 19.1MB 1997-01-01 to 2006-12-31 53.63N106.20W
US-MOz_observation.zip 5.4MB 2004-01-01 to 2007-12-31 38.74N92.20W
CA-SJ3_observation.zip 4.1MB 2004-01-01 to 2005-12-31 53.88N104.64W
US-IB1_observation.zip 3.2MB 2005-01-01 to 2007-12-31 41.86N88.22W
CA-TP2_observation.zip 4.4MB 2003-01-01 to 2007-12-31 42.77N80.46W
CA-SJ1_observation.zip 7.6MB 2002-01-01 to 2005-12-31 53.91N104.66W
CA-Man_observation.zip 10.8MB 1994-01-01 to 2006-12-31 55.88N98.48W
CA-Qfo_observation.zip 5.5MB 2004-01-01 to 2006-12-31 49.69N74.34W
US-Dk2_observation.zip 2.8MB 2003-01-01 to 2005-12-31 35.97N79.10W
CA-Ca3_observation.zip 9.7MB 2002-01-01 to 2006-12-31 49.53N124.90W
CA-SJ2_observation.zip 7.3MB 2003-01-01 to 2006-12-31 53.94N104.65W
US-Ne2_observation.zip 3.9MB 2001-01-01 to 2006-12-31 41.16N96.47W
US-PFa_observation.zip 8.6MB 1995-01-01 to 2005-12-31 45.95N90.27W
CA-TP3_observation.zip 4.4MB 2003-01-01 to 2007-12-31 42.71N80.35W
CA-TP4_observation.zip 10.3MB 2002-01-01 to 2007-12-31 42.71N80.36W
US-Me2_observation.zip 9.0MB 2002-01-01 to 2007-12-31 44.45N121.56W
CA-Ojp_observation.zip 13.5MB 2000-01-01 to 2006-12-31 53.92N104.69W
US-Me5_observation.zip 6.3MB 1999-01-01 to 2002-12-31 44.44N121.57W
US-NR1_observation.zip 17.6MB 1998-01-01 to 2007-12-31 40.03N105.55W
US-Me3_observation.zip 3.9MB 2004-01-01 to 2005-12-31 44.32N121.61W
US-MMS_observation.zip 7.7MB 1999-01-01 to 2006-12-31 39.32N86.41W
CA-Ca1_observation.zip 17.3MB 1998-01-01 to 2006-12-31 49.87N125.33W
CA-Obs_observation.zip 13.4MB 2000-01-01 to 2006-12-31 53.99N105.12W
US-Syv_observation.zip 10.7MB 2001-01-01 to 2006-12-31 46.24N89.35W
US-ARM_observation.zip 13.6MB 2000-01-01 to 2007-12-31 36.60N97.49W
US-Atq_observation.zip 6.5MB 1999-01-01 to 2006-12-31 70.47N157.41W
CA-Gro_observation.zip 5.6MB 2004-01-01 to 2006-12-31 48.22N82.16W
US-UMB_observation.zip 8.1MB 1998-01-01 to 2006-12-31 45.56N84.71W
US-SO2_observation.zip 15.7MB 1998-01-01 to 2006-12-31 33.37N116.62W
US-IB2_observation.zip 4.7MB 2004-01-01 to 2007-12-31 41.84N88.24W
US-Var_observation.zip 13.4MB 2001-01-01 to 2007-12-31 38.41N120.95W
US-WCr_observation.zip 14.9MB 1998-01-01 to 2006-12-31 45.81N90.08W
US-Brw_observation.zip 7.8MB 1998-01-01 to 2006-12-31 71.32N156.63W
US-Me4_observation.zip 4.6MB 1996-01-01 to 2000-12-31 44.50N121.62W
CA-Mer_observation.zip 14.1MB 1999-01-01 to 2006-12-31 45.41N75.52W
US-Dk3_observation.zip 14.4MB 1998-01-01 to 2005-12-31 35.98N79.09W
US-Shd_observation.zip 4.9MB 1997-01-01 to 2000-12-31 36.93N96.68W
US-Ho1_observation.zip 18.3MB 1996-01-01 to 2004-12-31 45.20N68.74W
CA-WP1_observation.zip 7.3MB 2003-01-01 to 2007-12-31 54.95N112.47W
CA-Let_observation.zip 19.7MB 1997-01-01 to 2006-12-31 49.71N112.94W
US-Los_observation.zip 12.1MB 2000-01-01 to 2006-12-31 46.08N89.98W
US-Ha1_observation.zip 14.1MB 1991-01-01 to 2006-12-31 42.54N72.17W
CA-Ca2_observation.zip 11.4MB 2001-01-01 to 2006-12-31 49.87N125.29W

Companion Files

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Data set has 11 companion files.

  • NACP_Site_Tower_Met_and_Flux.pdf
  • Site_information_basic.csv
  • Site_location_summary.csv
  • NAPC_sites_ungrouped_with-label.png
  • phenology_readme.txt
  • site_synthesis_protocol_v7.pdf
  • Soil_texture_summary.csv
  • NACP_uncertainty_analysis.pdf
  • site_information_extended.pdf
  • site_synthesis_documentation.pdf
  • Richardson_gap_filling_2009.pdf