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US-NR1: Niwot Ridge Forest (LTER NWT1)

Tower_team:
PI: Peter Blanken Blanken@Colorado.EDU - University of Colorado
AncContact: Sean Burns sean.burns@colorado.edu - University of Colorado
FluxContact: Russell Monson Russell.Monson@colorado.edu - The University of Arizona
Lat, Long: 40.0329, -105.5464
Elevation(m): 3050
Network Affiliations: AmeriFlux
Vegetation IGBP: ENF (Evergreen Needleleaf Forests)
Climate Koeppen: Dfc (Subarctic: severe winter, no dry season, cool summer)
Mean Annual Temp (°C): 1.5
Mean Annual Precip. (mm): 800
Flux Species Measured: CO2, H2O
Years Data Collected: AmeriFlux: 1998 - Present
Description:
The Niwot Ridge AmeriFlux site is located in a subalpine forest ecosystem just below the Continental Divide near Nederland, CO. The site is located at ...
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Research Topics:
The objectives and topics include the following: 1) Quantify the potential of forests in the mountainous Western US to sequester carbon and the effects ...
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Acknowledgment:
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US-NR1: Niwot Ridge Forest (LTER NWT1)

AmeriFlux user: This tab is under development. Below are new values we’re thinking of offering. Please send your feedback and requests to the AmeriFlux Data Team at ameriflux-support@lbl.gov.


Derived Quantities

  • LAI (cm2/g)
  • Canopy Height (m)
  • Photosynthesis
  • GPP
  • Latent Heat Exchange
  • Net Ecosystem Exchange
  • PPFD (Visible Light)
  • Precipitation (mm)
  • Ecosystem Respiration
  • Solar Radiation (Rg)
  • Rn (Net Radiation) W/m2
  • Air Temp (°C)
  • Vapor Pressure Deficit
  • Veg Properties
  • Plant Functional Type
  • Disturbance History

  • Instruments, Rel to Ref Pt

  • Elevation (m)
  • r, Θ (m, rad)

  • Soils Template

  • Soil Texture
  • Bulk Density (g/cm3)
  • Soil Carbon Stock and/or Density (tons/cm)
  • Approximate Area: 731.4 m2

    US-NR1: Niwot Ridge Forest (LTER NWT1)

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    When using DOIs for this site, use the publications and acknowledgments listed below.

    DOIs

    Publications to use for Citations for this Site

    Acknowledgements

    Resources

    US-NR1: Niwot Ridge Forest (LTER NWT1)

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    US-NR1: Niwot Ridge Forest (LTER NWT1)

    MODIS NDVI

    Normalized Difference Vegetation Index image for this site.

    For time series, data download and other MODIS products for this site, visit MODIS cutouts.

    Citation

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    Citation:

    ORNL DAAC. 2008. MODIS Collection 5 Fixed Sites Subsetting and Visualization Tool. ORNL DAAC, Oak Ridge, Tennessee, USA. http://dx.doi.org/10.3334/ORNLDAAC/1251

    Read more on how to cite these MODIS images. Data come from NASA’s MODIS instruments installed on satellites Terra and Aqua, which scan the entire Earth’s surface every one to two days.

    US-NR1: Niwot Ridge Forest (LTER NWT1)

    Year Publication
    2015 Dennis Baldocchi, Cove Sturtevant (2015) Does day and night sampling reduce spurious correlation between canopy photosynthesis and ecosystem respiration?, Agricultural and Forest Meteorology, 207, 117-126.
    2004 Turnipseed, A. A., Anderson, D. E., Burns, S., Blanken, P. D., Monson, R. K. (2004) Airflows And Turbulent Flux Measurements In Mountainous Terrain: Part 2: Mesoscale effects, Agricultural And Forest Meteorology, 125(3-4), 187-205.
    2004 Hui, D., Wan, S., Su, B., Katul, G., Monson, R., Luo, Y. (2004) Gap-Filling Missing Data In Eddy Covariance Measurements Using Multiple Imputation (MI) For Annual Estimations, Agricultural And Forest Meteorology, 121(1-2), 93-111.
    2006 Sacks, W. J., Schimel, D. S., Monson, R. K., Braswell, B. H. (2006) Model-Data Synthesis Of Diurnal And Seasonal CO2 Fluxes At Niwot Ridge, Colorado, Global Change Biology, 12(2), 240-259.
    2005 Arain, M. A., Restrepo-Coupe, N. (2005) Net Ecosystem Production In A Temperate Pine Plantation In Southeastern Canada, Agricultural And Forest Meteorology, 128(3-4), 223-241.
    2011 Riveros-Iregui, D.A., Hu, J., Burns, S.P., Bowling, D.R., Monson, R.K. (2011) An Interannual Assessment Of The Relationship Between The Stable Carbon Isotopic Composition Of Ecosystem Respiration And Climate In A High-Elevation Subalpine Forest, Journal Of Geophysical Research, 116(G2), 1-15.
    2005 Sims, D. A., Rahman, A. F., Cordova, V. D., Baldocchi, D. D., Flanagan, L. B., Goldstein, A. H., Hollinger, D. Y., Misson, L., Monson, R. K., Schmid, H. P., Wofsy, S. C., Xu, L. (2005) Midday Values Of Gross CO2 Flux And Light Use Efficiency During Satellite Overpasses Can Be Used To Directly Estimate Eight-Day Mean Flux, Agricultural And Forest Meteorology, 131(1-2), 1-12.
    2003 Sparks, J. P., Roberts, J. M., Monson, R. K. (2003) The Uptake Of Gaseous Organic Nitrogen By Leaves: A Significant Global Nitrogen Transfer Process, Geophysical Research Letters, 30(23), n/a-n/a.
    1998 Reich, P. B., Walters, M. B., Ellsworth, D. S., Vose, J. M., Volin, J. C., Gresham, C., Bowman, W. D. (1998) Relationships Of Leaf Dark Respiration To Leaf Nitrogen, Specific Leaf Area And Leaf Life-Span: A Test Across Biomes And Functional Groups, Oecologia, 114(4), 471-482.
    2011 Burns, S. P., Sun, J., Lenschow, D. H., Oncley, S. P., Stephens, B. B., Yi, C., Anderson, D. E., Hu, J., Monson, R. K. (2011) Atmospheric Stability Effects On Wind Fields And Scalar Mixing Within And Just Above A Subalpine Forest In Sloping Terrain, Boundary-Layer Meteorology, 138(2), 231-262.
    2005 Monson, R. K., Sparks, J. P., Rosenstiel, T. N., Scott-Denton, L. E., Huxman, T. E., Harley, P. C., Turnipseed, A. A., Burns, S. P., Backlund, B., Hu, J. (2005) Climatic Influences On Net Ecosystem CO2 Exchange During The Transition From Wintertime Carbon Source To Springtime Carbon Sink In A High-Elevation, Subalpine Forest, Oecologia, 146(1), 130-147.
    2002 Monson, R. K., Turnipseed, A. A., Sparks, J. P., Harley, P. C., Scott-Denton, L. E., Sparks, K., Huxman, T. E. (2002) Carbon Sequestration In A High-Elevation, Subalpine Forest, Global Change Biology, 8(5), 459-478.
    2003 Turnipseed, A. A., Anderson, D. E., Blanken, P. D., Baugh, W. M., Monson, R. K. (2003) Airflows And Turbulent Flux Measurements In Mountainous Terrain: Part 1. Canopy and local effects, Agricultural And Forest Meteorology, 119(1-2), 1-21.
    2005 Hibbard, K. A., Law, B. E., Reichstein, M., Sulzman, J. (2005) An Analysis Of Soil Respiration Across Northern Hemisphere Temperate Ecosystems, Biogeochemistry, 73(1), 29-70.
    2002 Schimel, D.S., Kittel, T.G.F., Running, S., Monson, R.K., Turnipseed, A.A., Anderson, D. (2002) Carbon Sequestration Studied In Western U.S. Mountains, EOS, Transactions American Geophysical Union, 83(40), 445-449.
    2005 Churkina, G., Schimel, D., Braswell, B. H., Xiao, X. (2005) Spatial Analysis Of Growing Season Length Control Over Net Ecosystem Exchange, Global Change Biology, 11(10), 1777-1787.
    2010 Sun, J., Oncley, S. P., Burns, S. P., Stephens, B. B., Lenschow, D. H., Campos, T., Watt, A. S., Monson, R. K., Moore, D. J., Hu, J., Tschudi, M., Schimel, D. S., Aulenbach, S., Sacks, W. J., De Wekker, S. F., Lai, C., Lamb, B., Allwine, E., Coons, T., Ojima, D., Ellsworth, P. Z., Sternberg, L. S., Zhong, S., Clements, C., Anderson, D. E. (2010) A Multiscale And Multidisciplinary Investigation Of Ecosystem–Atmosphere CO2 Exchange Over The Rocky Mountains Of Colorado, Bulletin Of The American Meteorological Society, 91(2), 209-230.
    2011 Desai, A.R., Moore, D.J.P., Ahue, W.K.M., Wilkes, P.T.V., De Wekker, S.F.J., Brooks, B.G., Campos, T.L., Stephens, B.B., Monson, R.K., Burns, S.P., Quaife, T., Aulenbach, S.M., Schimel, D.S. (2011) Seasonal Pattern Of Regional Carbon Balance In The Central Rocky Mountains From Surface And Airborne Measurements, Journal Of Geophysical Research, 116(G04009), 1-16.
    2004 Yi, C., Li, R., Bakwin, P. S., Desai, A., Ricciuto, D. M., Burns, S. P., Turnipseed, A. A., Wofsy, S. C., Munger, J. W., Wilson, K., Monson, R. K. (2004) A Nonparametric Method For Separating Photosynthesis And Respiration Components In CO2 Flux Measurements, Geophysical Research Letters, 31(17), n/a-n/a.
    2003 Huxman, T. E., Turnipseed, A. A., Sparks, J. P., Harley, P. C., Monson, R. K. (2003) Temperature As A Control Over Ecosystem CO2 Fluxes In A High-Elevation, Subalpine Forest, Oecologia, 134(4), 537-546.
    2002 Turnipseed, A., Blanken, P., Anderson, D., Monson, R. (2002) Energy Budget Above A High-Elevation Subalpine Forest In Complex Topography, Agricultural And Forest Meteorology, 110(3), 177-201.
    2005 Bowling, D. R., Burns, S. P., Conway, T. J., Monson, R. K., White, J. W. (2005) Extensive Observations Of Co2carbon Isotope Content In And Above A High-Elevation Subalpine Forest, Global Biogeochemical Cycles, 19(3), n/a-n/a.
    2005 Yi, C., Monson, R. K., Zhai, Z., Anderson, D. E., Lamb, B., Allwine, G., Turnipseed, A. A., Burns, S. P. (2005) Modeling And Measuring The Nocturnal Drainage Flow In A High-Elevation, Subalpine Forest With Complex Terrain, Journal Of Geophysical Research, 110(D22303), n/a-n/a.
    2016 Zscheischler, J., Fatichi, S., Wolf, S., Blanken, P., Bohrer, G., Clark, K., Desai, A., Hollinger, D., Keenan, T., Novick, K.A., Seneviratne, S.I. (2016) Short-term favorable weather conditions are an important control of interannual variability in carbon and water fluxes, Journal of Geophysical Research - Biogeosciences, 121(8), 2186-2198.
    2016 Wolf, S., Keenan, T.F., Fisher, J.B., Baldocchi, D.D., Desai, A.R., Richardson, A.D., Scott, R.L., Law, B.E., Litvak, M.E., Brunsell, N.A., Peters, W., van der Laan-Luijkx, I.T. (2016) Warm spring reduced carbon cycle impact of the 2012 US summer drought, Proceedings of the National Academy of Sciences, 113(21), 5880-5885.

    US-NR1: Niwot Ridge Forest (LTER NWT1)

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